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gimp/app/layers_dialog.c

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/* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include <gtk/gtk.h>
#include <gdk/gdkkeysyms.h>
#include "apptypes.h"
#include "appenv.h"
#include "colormaps.h"
#include "drawable.h"
#include "floating_sel.h"
#include "gdisplay.h"
#include "gimage.h"
#include "gimage_mask.h"
#include "gimpdnd.h"
#include "gimprc.h"
#include "gimpui.h"
#include "image_render.h"
#include "layer.h"
#include "layers_dialog.h"
#include "layers_dialogP.h"
#include "lc_dialogP.h"
#include "menus.h"
#include "ops_buttons.h"
#include "paint_funcs.h"
#include "resize.h"
#include "temp_buf.h"
#include "undo.h"
#include "libgimp/gimplimits.h"
#include "libgimp/gimpmath.h"
#include "libgimp/gimpsizeentry.h"
#include "libgimp/gimpintl.h"
#include "pixmaps/eye.xbm"
#include "pixmaps/linked.xbm"
#include "pixmaps/layer.xbm"
#include "pixmaps/mask.xbm"
#include "pixmaps/new.xpm"
#include "pixmaps/raise.xpm"
#include "pixmaps/lower.xpm"
#include "pixmaps/duplicate.xpm"
#include "pixmaps/delete.xpm"
#include "pixmaps/anchor.xpm"
#define LAYER_PREVIEW 0
#define MASK_PREVIEW 1
#define FS_PREVIEW 2
typedef struct _LayersDialog LayersDialog;
struct _LayersDialog
{
GtkWidget *vbox;
GtkWidget *mode_option_menu;
GtkWidget *layer_list;
GtkWidget *scrolled_win;
GtkWidget *preserve_trans;
GtkWidget *mode_box;
GtkWidget *opacity_box;
GtkWidget *ops_menu;
GtkAccelGroup *accel_group;
GtkAdjustment *opacity_data;
GdkGC *red_gc; /* for non-applied layer masks */
GdkGC *green_gc; /* for visible layer masks */
GtkWidget *layer_preview;
/* state information */
GimpImage *gimage;
gint image_width, image_height;
gint gimage_width, gimage_height;
gdouble ratio;
Layer *active_layer;
Channel *active_channel;
Layer *floating_sel;
GSList *layer_widgets;
};
typedef struct _LayerWidget LayerWidget;
struct _LayerWidget
{
GtkWidget *list_item;
GtkWidget *eye_widget;
GtkWidget *linked_widget;
GtkWidget *clip_widget;
GtkWidget *layer_preview;
GtkWidget *mask_preview;
GtkWidget *label;
GdkPixmap *layer_pixmap;
GdkPixmap *mask_pixmap;
/* state information */
GimpImage *gimage;
Layer *layer;
gint width, height;
gint active_preview;
gboolean layer_mask;
gboolean apply_mask;
gboolean edit_mask;
gboolean show_mask;
gboolean visited;
GimpDropType drop_type;
gboolean layer_pixmap_valid;
};
/* layers dialog widget routines */
static void layers_dialog_preview_extents (void);
static void layers_dialog_set_menu_sensitivity (void);
static void layers_dialog_scroll_index (gint index);
static void layers_dialog_set_active_layer (Layer *layer);
static void layers_dialog_unset_layer (Layer *layer);
static void layers_dialog_position_layer (Layer *layer,
gint new_index);
static void layers_dialog_add_layer (Layer *layer);
static void layers_dialog_remove_layer (Layer *layer);
static void layers_dialog_add_layer_mask (Layer *layer);
static void layers_dialog_remove_layer_mask (Layer *layer);
static void paint_mode_menu_callback (GtkWidget *widget,
gpointer data);
static void opacity_scale_update (GtkAdjustment *widget,
gpointer data);
static void preserve_trans_update (GtkWidget *widget,
gpointer data);
static gint layer_list_events (GtkWidget *widget,
GdkEvent *event,
gpointer data);
/* for (un)installing the menu accelarators */
static void layers_dialog_map_callback (GtkWidget *widget,
gpointer data);
static void layers_dialog_unmap_callback (GtkWidget *widget,
gpointer data);
/* ops buttons dnd callbacks */
static gboolean layers_dialog_drag_new_layer_callback
(GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time);
static gboolean layers_dialog_drag_duplicate_layer_callback
(GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time);
static gboolean layers_dialog_drag_trashcan_callback
(GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time);
/* layer widget function prototypes */
static LayerWidget * layer_widget_get_ID (Layer *layer);
static LayerWidget * layer_widget_create (GimpImage *gimage,
Layer *layer);
static gboolean layer_widget_drag_motion_callback
(GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time);
static gboolean layer_widget_drag_drop_callback (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time);
static void layer_widget_drag_begin_callback (GtkWidget *widget,
GdkDragContext *context);
static void layer_mask_drag_begin_callback (GtkWidget *widget,
GdkDragContext *context);
static void layer_widget_drag_leave_callback (GtkWidget *widget,
GdkDragContext *context,
guint time);
static void layer_widget_drag_indicator_callback(GtkWidget *widget,
gpointer data);
static void layer_widget_draw_drop_indicator (LayerWidget *layer_widget,
GimpDropType drop_type);
static void layer_widget_delete (LayerWidget *layer_widget);
static void layer_widget_select_update (GtkWidget *widget,
gpointer data);
static gint layer_widget_button_events (GtkWidget *widget,
GdkEvent *event,
gpointer data);
static gint layer_widget_preview_events (GtkWidget *widget,
GdkEvent *event,
gpointer data);
static void layer_widget_boundary_redraw (LayerWidget *layer_widget,
gint preview_type);
static void layer_widget_preview_redraw (LayerWidget *layer_widget,
gint preview_type);
static void layer_widget_no_preview_redraw (LayerWidget *layer_widget,
gint preview_type);
static void layer_widget_eye_redraw (LayerWidget *layer_widget);
static void layer_widget_linked_redraw (LayerWidget *layer_widget);
static void layer_widget_clip_redraw (LayerWidget *layer_widget);
static void layer_widget_exclusive_visible (LayerWidget *layer_widget);
static void layer_widget_layer_flush (GtkWidget *widget,
gpointer data);
/* assorted query dialogs */
static void layers_dialog_new_layer_query (GimpImage *gimage);
static void layers_dialog_edit_layer_query (LayerWidget *layer_widget);
static void layers_dialog_add_mask_query (Layer *layer);
static void layers_dialog_scale_layer_query (GimpImage *gimage,
Layer *layer);
static void layers_dialog_resize_layer_query (GimpImage *gimage,
Layer *layer);
void layers_dialog_layer_merge_query (GimpImage *gimage,
gboolean merge_visible);
/****************/
/* Local data */
/****************/
static LayersDialog *layersD = NULL;
static GdkPixmap *eye_pixmap[] = { NULL, NULL, NULL };
static GdkPixmap *linked_pixmap[] = { NULL, NULL, NULL };
static GdkPixmap *layer_pixmap[] = { NULL, NULL, NULL };
static GdkPixmap *mask_pixmap[] = { NULL, NULL, NULL };
static gint suspend_gimage_notify = 0;
/* the ops buttons */
static GtkSignalFunc raise_layers_ext_callbacks[] =
{
layers_dialog_raise_layer_to_top_callback, NULL, NULL, NULL
};
static GtkSignalFunc lower_layers_ext_callbacks[] =
{
layers_dialog_lower_layer_to_bottom_callback, NULL, NULL, NULL
};
static OpsButton layers_ops_buttons[] =
{
{ new_xpm, layers_dialog_new_layer_callback, NULL,
N_("New Layer"),
"layers/dialogs/new_layer.html",
NULL, 0 },
{ raise_xpm, layers_dialog_raise_layer_callback, raise_layers_ext_callbacks,
N_("Raise Layer \n"
"<Shift> To Top"),
"layers/stack/stack.html#raise_layer",
NULL, 0 },
{ lower_xpm, layers_dialog_lower_layer_callback, lower_layers_ext_callbacks,
N_("Lower Layer \n"
"<Shift> To Bottom"),
"layers/stack/stack.html#lower_layer",
NULL, 0 },
{ duplicate_xpm, layers_dialog_duplicate_layer_callback, NULL,
N_("Duplicate Layer"),
"layers/duplicate_layer.html",
NULL, 0 },
{ anchor_xpm, layers_dialog_anchor_layer_callback, NULL,
N_("Anchor Layer"),
"layers/anchor_layer.html",
NULL, 0 },
{ delete_xpm, layers_dialog_delete_layer_callback, NULL,
N_("Delete Layer"),
"layers/delete_layer.html",
NULL, 0 },
{ NULL, NULL, NULL, NULL, NULL, NULL, 0 }
};
/* dnd structures */
static GtkTargetEntry layer_target_table[] =
{
GIMP_TARGET_LAYER
};
static guint n_layer_targets = (sizeof (layer_target_table) /
sizeof (layer_target_table[0]));
static GtkTargetEntry layer_mask_target_table[] =
{
GIMP_TARGET_LAYER_MASK
};
static guint n_layer_mask_targets = (sizeof (layer_mask_target_table) /
sizeof (layer_mask_target_table[0]));
static GtkTargetEntry trashcan_target_table[] =
{
GIMP_TARGET_LAYER,
GIMP_TARGET_LAYER_MASK
};
static guint n_trashcan_targets = (sizeof (trashcan_target_table) /
sizeof (trashcan_target_table[0]));
/************************************/
/* Public layers dialog functions */
/************************************/
GtkWidget *
layers_dialog_create (void)
{
GtkWidget *vbox;
GtkWidget *util_box;
GtkWidget *button_box;
GtkWidget *label;
GtkWidget *slider;
if (layersD)
return layersD->vbox;
layersD = g_new (LayersDialog, 1);
layersD->layer_preview = NULL;
layersD->gimage = NULL;
layersD->active_layer = NULL;
layersD->active_channel = NULL;
layersD->floating_sel = NULL;
layersD->layer_widgets = NULL;
layersD->green_gc = NULL;
layersD->red_gc = NULL;
if (preview_size)
{
layersD->layer_preview = gtk_preview_new (GTK_PREVIEW_COLOR);
gtk_preview_size (GTK_PREVIEW (layersD->layer_preview),
preview_size, preview_size);
}
/* The main vbox */
layersD->vbox = gtk_event_box_new ();
gimp_help_set_help_data (layersD->vbox, NULL, "dialogs/layers/layers.html");
vbox = gtk_vbox_new (FALSE, 1);
gtk_container_set_border_width (GTK_CONTAINER (vbox), 2);
gtk_container_add (GTK_CONTAINER (layersD->vbox), vbox);
/* The layers commands pulldown menu */
menus_get_layers_menu (&layersD->ops_menu, &layersD->accel_group);
/* The Mode option menu, and the preserve transparency */
layersD->mode_box = util_box = gtk_hbox_new (FALSE, 1);
gtk_box_pack_start (GTK_BOX (vbox), util_box, FALSE, FALSE, 0);
label = gtk_label_new (_("Mode:"));
gtk_box_pack_start (GTK_BOX (util_box), label, FALSE, FALSE, 2);
gtk_widget_show (label);
layersD->mode_option_menu =
gimp_option_menu_new2 (FALSE, paint_mode_menu_callback,
NULL, (gpointer) NORMAL_MODE,
_("Normal"), (gpointer) NORMAL_MODE, NULL,
_("Dissolve"), (gpointer) DISSOLVE_MODE, NULL,
_("Multiply"), (gpointer) MULTIPLY_MODE, NULL,
_("Divide"), (gpointer) DIVIDE_MODE, NULL,
_("Screen"), (gpointer) SCREEN_MODE, NULL,
_("Overlay"), (gpointer) OVERLAY_MODE, NULL,
_("Dodge"), (gpointer) DODGE_MODE, NULL,
_("Burn"), (gpointer) BURN_MODE, NULL,
_("Hard Light"), (gpointer) HARDLIGHT_MODE, NULL,
_("Difference"), (gpointer) DIFFERENCE_MODE, NULL,
_("Addition"), (gpointer) ADDITION_MODE, NULL,
_("Subtract"), (gpointer) SUBTRACT_MODE, NULL,
_("Darken Only"), (gpointer) DARKEN_ONLY_MODE, NULL,
_("Lighten Only"), (gpointer) LIGHTEN_ONLY_MODE, NULL,
_("Hue"), (gpointer) HUE_MODE, NULL,
_("Saturation"), (gpointer) SATURATION_MODE, NULL,
_("Color"), (gpointer) COLOR_MODE, NULL,
_("Value"), (gpointer) VALUE_MODE, NULL,
NULL);
gtk_box_pack_start (GTK_BOX (util_box), layersD->mode_option_menu,
FALSE, FALSE, 2);
gtk_widget_show (layersD->mode_option_menu);
gimp_help_set_help_data (layersD->mode_option_menu,
NULL, "#paint_mode_menu");
layersD->preserve_trans =
gtk_check_button_new_with_label (_("Keep Trans."));
gtk_box_pack_start (GTK_BOX (util_box), layersD->preserve_trans,
FALSE, FALSE, 2);
gtk_signal_connect (GTK_OBJECT (layersD->preserve_trans), "toggled",
(GtkSignalFunc) preserve_trans_update,
layersD);
gtk_widget_show (layersD->preserve_trans);
gimp_help_set_help_data (layersD->preserve_trans,
_("Keep Transparency"), "#keep_trans_button");
gtk_widget_show (util_box);
/* Opacity scale */
layersD->opacity_box = util_box = gtk_hbox_new (FALSE, 1);
gtk_box_pack_start (GTK_BOX (vbox), util_box, FALSE, FALSE, 0);
label = gtk_label_new (_("Opacity:"));
gtk_box_pack_start (GTK_BOX (util_box), label, FALSE, FALSE, 2);
gtk_widget_show (label);
layersD->opacity_data =
GTK_ADJUSTMENT (gtk_adjustment_new (100.0, 0.0, 100.0, 1.0, 1.0, 0.0));
slider = gtk_hscale_new (layersD->opacity_data);
gtk_range_set_update_policy (GTK_RANGE (slider), GTK_UPDATE_CONTINUOUS);
gtk_scale_set_value_pos (GTK_SCALE (slider), GTK_POS_RIGHT);
gtk_box_pack_start (GTK_BOX (util_box), slider, TRUE, TRUE, 0);
gtk_signal_connect (GTK_OBJECT (layersD->opacity_data), "value_changed",
(GtkSignalFunc) opacity_scale_update,
layersD);
gtk_widget_show (slider);
gimp_help_set_help_data (slider, NULL, "#opacity_scale");
gtk_widget_show (util_box);
/* The layers listbox */
layersD->scrolled_win = gtk_scrolled_window_new (NULL, NULL);
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (layersD->scrolled_win),
GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
gtk_widget_set_usize (layersD->scrolled_win, LIST_WIDTH, LIST_HEIGHT);
gtk_box_pack_start (GTK_BOX (vbox), layersD->scrolled_win, TRUE, TRUE, 2);
layersD->layer_list = gtk_list_new ();
gtk_scrolled_window_add_with_viewport (GTK_SCROLLED_WINDOW (layersD->scrolled_win),
layersD->layer_list);
gtk_list_set_selection_mode (GTK_LIST (layersD->layer_list),
GTK_SELECTION_BROWSE);
gtk_signal_connect (GTK_OBJECT (layersD->layer_list), "event",
(GtkSignalFunc) layer_list_events,
layersD);
gtk_container_set_focus_vadjustment (GTK_CONTAINER (layersD->layer_list),
gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (layersD->scrolled_win)));
GTK_WIDGET_UNSET_FLAGS (GTK_SCROLLED_WINDOW (layersD->scrolled_win)->vscrollbar,
GTK_CAN_FOCUS);
gtk_widget_show (layersD->layer_list);
gtk_widget_show (layersD->scrolled_win);
/* The ops buttons */
button_box = ops_button_box_new (layers_ops_buttons, OPS_BUTTON_NORMAL);
gtk_box_pack_start (GTK_BOX (vbox), button_box, FALSE, FALSE, 2);
gtk_widget_show (button_box);
/* Drop to new */
gtk_drag_dest_set (layers_ops_buttons[0].widget,
GTK_DEST_DEFAULT_ALL,
layer_target_table, n_layer_targets,
GDK_ACTION_COPY);
gtk_signal_connect (GTK_OBJECT (layers_ops_buttons[0].widget), "drag_drop",
GTK_SIGNAL_FUNC (layers_dialog_drag_new_layer_callback),
NULL);
/* Drop to duplicate */
gtk_drag_dest_set (layers_ops_buttons[3].widget,
GTK_DEST_DEFAULT_ALL,
layer_target_table, n_layer_targets,
GDK_ACTION_COPY);
gtk_signal_connect (GTK_OBJECT (layers_ops_buttons[3].widget), "drag_drop",
GTK_SIGNAL_FUNC (layers_dialog_drag_duplicate_layer_callback),
NULL);
/* Drop to trashcan */
gtk_drag_dest_set (layers_ops_buttons[5].widget,
GTK_DEST_DEFAULT_ALL,
trashcan_target_table, n_trashcan_targets,
GDK_ACTION_COPY);
gtk_signal_connect (GTK_OBJECT (layers_ops_buttons[5].widget), "drag_drop",
GTK_SIGNAL_FUNC (layers_dialog_drag_trashcan_callback),
NULL);
/* Set up signals for map/unmap for the accelerators */
gtk_signal_connect (GTK_OBJECT (layersD->vbox), "map",
(GtkSignalFunc) layers_dialog_map_callback,
NULL);
gtk_signal_connect (GTK_OBJECT (layersD->vbox), "unmap",
(GtkSignalFunc) layers_dialog_unmap_callback,
NULL);
gtk_widget_show (vbox);
gtk_widget_show (layersD->vbox);
return layersD->vbox;
}
void
layers_dialog_free (void)
{
LayerWidget *lw;
GSList *list;
if (!layersD)
return;
suspend_gimage_notify++;
/* Free all elements in the layers listbox */
gtk_list_clear_items (GTK_LIST (layersD->layer_list), 0, -1);
suspend_gimage_notify--;
list = layersD->layer_widgets;
while (list)
{
lw = (LayerWidget *) list->data;
list = g_slist_next (list);
layer_widget_delete (lw);
}
layersD->layer_widgets = NULL;
layersD->active_layer = NULL;
layersD->active_channel = NULL;
layersD->floating_sel = NULL;
if (layersD->layer_preview)
gtk_object_sink (GTK_OBJECT (layersD->layer_preview));
if (layersD->green_gc)
gdk_gc_destroy (layersD->green_gc);
if (layersD->red_gc)
gdk_gc_destroy (layersD->red_gc);
g_free (layersD);
layersD = NULL;
}
void
layers_dialog_invalidate_previews (GimpImage *gimage)
{
GSList *list = gimage->layers;
Layer *layer;
/* Invalidate all previews ...
* This is called during loading the image
*/
while (list)
{
layer = (Layer *) list->data;
GIMP_DRAWABLE (layer)->preview_valid = FALSE;
list = g_slist_next (list);
}
}
void
layers_dialog_update (GimpImage* gimage)
{
Layer *layer;
LayerWidget *lw;
GSList *list;
GList *item_list;
if (! layersD || layersD->gimage == gimage)
return;
layersD->gimage = gimage;
/* Make sure the gimage is not notified of this change */
suspend_gimage_notify++;
/* Free all elements in the layers listbox */
gtk_list_clear_items (GTK_LIST (layersD->layer_list), 0, -1);
list = layersD->layer_widgets;
while (list)
{
lw = (LayerWidget *) list->data;
list = g_slist_next (list);
layer_widget_delete (lw);
}
if (layersD->layer_widgets)
g_warning ("layers_dialog_update(): layersD->layer_widgets not empty!");
layersD->layer_widgets = NULL;
/* Find the preview extents */
layers_dialog_preview_extents ();
layersD->active_layer = NULL;
layersD->active_channel = NULL;
layersD->floating_sel = NULL;
for (list = gimage->layers, item_list = NULL;
list;
list = g_slist_next (list))
{
/* create a layer list item */
layer = (Layer *) list->data;
lw = layer_widget_create (gimage, layer);
layersD->layer_widgets = g_slist_append (layersD->layer_widgets, lw);
item_list = g_list_append (item_list, lw->list_item);
}
/* get the index of the active layer */
if (item_list)
gtk_list_insert_items (GTK_LIST (layersD->layer_list), item_list, 0);
suspend_gimage_notify--;
}
void
layers_dialog_flush (void)
{
GimpImage *gimage;
Layer *layer;
LayerWidget *lw;
GSList *list;
gint pos;
if (!layersD || !(gimage = layersD->gimage))
return;
/* Make sure the gimage is not notified of this change */
suspend_gimage_notify++;
/* Check if the gimage extents have changed */
if ((gimage->width != layersD->gimage_width) ||
(gimage->height != layersD->gimage_height))
{
layersD->gimage = NULL;
layers_dialog_update (gimage);
}
else
{
/* Set all current layer widgets to visited = FALSE */
for (list = layersD->layer_widgets; list; list = g_slist_next (list))
{
lw = (LayerWidget *) list->data;
lw->visited = FALSE;
}
/* Add any missing layers */
for (list = gimage->layers; list; list = g_slist_next (list))
{
layer = (Layer *) list->data;
lw = layer_widget_get_ID (layer);
/* If the layer isn't in the layer widget list, add it */
if (lw == NULL)
{
/* sets visited = TRUE */
layers_dialog_add_layer (layer);
}
else
lw->visited = TRUE;
}
/* Remove any extraneous layers */
list = layersD->layer_widgets;
while (list)
{
lw = (LayerWidget *) list->data;
list = g_slist_next (list);
if (lw->visited == FALSE)
layers_dialog_remove_layer (lw->layer);
}
/* Switch positions of items if necessary */
for (list = gimage->layers, pos = 0;
list;
list = g_slist_next (list))
{
layer = (Layer *) list->data;
layers_dialog_position_layer (layer, pos++);
}
/* Set the active layer */
if (layersD->active_layer != gimage->active_layer)
layersD->active_layer = gimage->active_layer;
/* Set the active channel */
if (layersD->active_channel != gimage->active_channel)
layersD->active_channel = gimage->active_channel;
/* set the menus if floating sel status has changed */
if (layersD->floating_sel != gimage->floating_sel)
layersD->floating_sel = gimage->floating_sel;
layers_dialog_set_menu_sensitivity ();
gtk_container_foreach (GTK_CONTAINER (layersD->layer_list),
layer_widget_layer_flush, NULL);
}
suspend_gimage_notify--;
}
void
layers_dialog_clear (void)
{
if (!layersD)
return;
suspend_gimage_notify++;
gtk_list_clear_items (GTK_LIST (layersD->layer_list), 0, -1);
suspend_gimage_notify--;
layersD->gimage = NULL;
}
/***********************/
/* Preview functions */
/***********************/
void
render_preview (TempBuf *preview_buf,
GtkWidget *preview_widget,
gint width,
gint height,
gint channel)
{
guchar *src, *s;
guchar *cb;
guchar *buf;
gint a;
gint i, j, b;
gint x1, y1, x2, y2;
gint rowstride;
gint color_buf;
gint color;
gint alpha;
gboolean has_alpha;
gint image_bytes;
gint offset;
alpha = ALPHA_PIX;
/* Here are the different cases this functions handles correctly:
* 1) Offset preview_buf which does not necessarily cover full image area
* 2) Color conversion of preview_buf if it is gray and image is color
* 3) Background check buffer for transparent preview_bufs
* 4) Using the optional "channel" argument, one channel can be extracted
* from a multi-channel preview_buf and composited as a grayscale
* Prereqs:
* 1) Grayscale preview_bufs have bytes == {1, 2}
* 2) Color preview_bufs have bytes == {3, 4}
* 3) If image is gray, then preview_buf should have bytes == {1, 2}
*/
color_buf = (GTK_PREVIEW (preview_widget)->type == GTK_PREVIEW_COLOR);
image_bytes = (color_buf) ? 3 : 1;
has_alpha = (preview_buf->bytes == 2 || preview_buf->bytes == 4);
rowstride = preview_buf->width * preview_buf->bytes;
/* Determine if the preview buf supplied is color
* Generally, if the bytes == {3, 4}, this is true.
* However, if the channel argument supplied is not -1, then
* the preview buf is assumed to be gray despite the number of
* channels it contains
*/
color = (channel == -1) &&
(preview_buf->bytes == 3 || preview_buf->bytes == 4);
if (has_alpha)
{
buf = check_buf;
alpha = ((color) ? ALPHA_PIX :
((channel != -1) ? (preview_buf->bytes - 1) :
ALPHA_G_PIX));
}
else
buf = empty_buf;
x1 = CLAMP (preview_buf->x, 0, width);
y1 = CLAMP (preview_buf->y, 0, height);
x2 = CLAMP (preview_buf->x + preview_buf->width, 0, width);
y2 = CLAMP (preview_buf->y + preview_buf->height, 0, height);
src = temp_buf_data (preview_buf) + (y1 - preview_buf->y) * rowstride +
(x1 - preview_buf->x) * preview_buf->bytes;
/* One last thing for efficiency's sake: */
if (channel == -1)
channel = 0;
for (i = 0; i < height; i++)
{
if (i & 0x4)
{
offset = 4;
cb = buf + offset * 3;
}
else
{
offset = 0;
cb = buf;
}
/* The interesting stuff between leading & trailing
vertical transparency */
if (i >= y1 && i < y2)
{
/* Handle the leading transparency */
for (j = 0; j < x1; j++)
for (b = 0; b < image_bytes; b++)
temp_buf[j * image_bytes + b] = cb[j * 3 + b];
/* The stuff in the middle */
s = src;
for (j = x1; j < x2; j++)
{
if (color)
{
if (has_alpha)
{
a = s[alpha] << 8;
if ((j + offset) & 0x4)
{
temp_buf[j * 3 + 0] =
blend_dark_check [(a | s[RED_PIX])];
temp_buf[j * 3 + 1] =
blend_dark_check [(a | s[GREEN_PIX])];
temp_buf[j * 3 + 2] =
blend_dark_check [(a | s[BLUE_PIX])];
}
else
{
temp_buf[j * 3 + 0] =
blend_light_check [(a | s[RED_PIX])];
temp_buf[j * 3 + 1] =
blend_light_check [(a | s[GREEN_PIX])];
temp_buf[j * 3 + 2] =
blend_light_check [(a | s[BLUE_PIX])];
}
}
else
{
temp_buf[j * 3 + 0] = s[RED_PIX];
temp_buf[j * 3 + 1] = s[GREEN_PIX];
temp_buf[j * 3 + 2] = s[BLUE_PIX];
}
}
else
{
if (has_alpha)
{
a = s[alpha] << 8;
if ((j + offset) & 0x4)
{
if (color_buf)
{
temp_buf[j * 3 + 0] =
blend_dark_check [(a | s[GRAY_PIX])];
temp_buf[j * 3 + 1] =
blend_dark_check [(a | s[GRAY_PIX])];
temp_buf[j * 3 + 2] =
blend_dark_check [(a | s[GRAY_PIX])];
}
else
temp_buf[j] =
blend_dark_check [(a | s[GRAY_PIX + channel])];
}
else
{
if (color_buf)
{
temp_buf[j * 3 + 0] =
blend_light_check [(a | s[GRAY_PIX])];
temp_buf[j * 3 + 1] =
blend_light_check [(a | s[GRAY_PIX])];
temp_buf[j * 3 + 2] =
blend_light_check [(a | s[GRAY_PIX])];
}
else
temp_buf[j] =
blend_light_check [(a | s[GRAY_PIX + channel])];
}
}
else
{
if (color_buf)
{
temp_buf[j * 3 + 0] = s[GRAY_PIX];
temp_buf[j * 3 + 1] = s[GRAY_PIX];
temp_buf[j * 3 + 2] = s[GRAY_PIX];
}
else
temp_buf[j] = s[GRAY_PIX + channel];
}
}
s += preview_buf->bytes;
}
/* Handle the trailing transparency */
for (j = x2; j < width; j++)
for (b = 0; b < image_bytes; b++)
temp_buf[j * image_bytes + b] = cb[j * 3 + b];
src += rowstride;
}
else
{
for (j = 0; j < width; j++)
for (b = 0; b < image_bytes; b++)
temp_buf[j * image_bytes + b] = cb[j * 3 + b];
}
gtk_preview_draw_row (GTK_PREVIEW (preview_widget),
temp_buf, 0, i, width);
}
}
void
render_fs_preview (GtkWidget *widget,
GdkPixmap *pixmap)
{
gint w, h;
gint x1, y1, x2, y2;
GdkPoint poly[6];
gint foldh, foldw;
gint i;
gdk_window_get_size (pixmap, &w, &h);
x1 = 2;
y1 = h / 8 + 2;
x2 = w - w / 8 - 2;
y2 = h - 2;
gdk_draw_rectangle (pixmap, widget->style->bg_gc[GTK_STATE_NORMAL], 1,
0, 0, w, h);
gdk_draw_rectangle (pixmap, widget->style->black_gc, 0,
x1, y1, (x2 - x1), (y2 - y1));
foldw = w / 4;
foldh = h / 4;
x1 = w / 8 + 2;
y1 = 2;
x2 = w - 2;
y2 = h - h / 8 - 2;
poly[0].x = x1 + foldw; poly[0].y = y1;
poly[1].x = x1 + foldw; poly[1].y = y1 + foldh;
poly[2].x = x1; poly[2].y = y1 + foldh;
poly[3].x = x1; poly[3].y = y2;
poly[4].x = x2; poly[4].y = y2;
poly[5].x = x2; poly[5].y = y1;
gdk_draw_polygon (pixmap, widget->style->white_gc, 1, poly, 6);
gdk_draw_line (pixmap, widget->style->black_gc,
x1, y1 + foldh, x1, y2);
gdk_draw_line (pixmap, widget->style->black_gc,
x1, y2, x2, y2);
gdk_draw_line (pixmap, widget->style->black_gc,
x2, y2, x2, y1);
gdk_draw_line (pixmap, widget->style->black_gc,
x1 + foldw, y1, x2, y1);
for (i = 0; i < foldw; i++)
gdk_draw_line (pixmap, widget->style->black_gc,
x1 + i, y1 + foldh, x1 + i, (foldw == 1) ? y1 :
(y1 + (foldh - (foldh * i) / (foldw - 1))));
}
/*************************************/
/* layers dialog widget routines */
/*************************************/
static void
layers_dialog_preview_extents (void)
{
GimpImage *gimage;
if (!layersD)
return;
gimage = layersD->gimage;
layersD->gimage_width = gimage->width;
layersD->gimage_height = gimage->height;
/* Get the image width and height variables, based on the gimage */
if (gimage->width > gimage->height)
layersD->ratio =
MIN (1.0, (gdouble) preview_size / (gdouble) gimage->width);
else
layersD->ratio =
MIN (1.0, (gdouble) preview_size / (gdouble) gimage->height);
if (preview_size)
{
layersD->image_width = RINT (layersD->ratio * (gdouble) gimage->width);
layersD->image_height = RINT (layersD->ratio * (gdouble) gimage->height);
if (layersD->image_width < 1) layersD->image_width = 1;
if (layersD->image_height < 1) layersD->image_height = 1;
}
else
{
layersD->image_width = layer_width;
layersD->image_height = layer_height;
}
}
static void
layers_dialog_set_menu_sensitivity (void)
{
gboolean fs; /* no floating sel */
gboolean ac; /* no active channel */
gboolean lm; /* layer mask */
gboolean gimage; /* is there a gimage */
gboolean lp; /* layers present */
gboolean alpha; /* alpha channel present */
gboolean indexed; /* is indexed */
gboolean next_alpha;
GSList *list;
GSList *next;
GSList *prev;
Layer *layer;
lp = FALSE;
indexed = FALSE;
if (! layersD)
return;
if ((layer = (layersD->active_layer)) != NULL)
lm = (layer_get_mask (layer)) ? TRUE : FALSE;
else
lm = FALSE;
fs = (layersD->floating_sel == NULL);
ac = (layersD->active_channel == NULL);
gimage = (layersD->gimage != NULL);
alpha = layer && layer_has_alpha (layer);
if (gimage)
{
lp = (layersD->gimage->layers != NULL);
indexed = (gimp_image_base_type (layersD->gimage) == INDEXED);
}
list = layersD->gimage->layers;
prev = NULL;
next = NULL;
while (list)
{
layer = (Layer *)list->data;
if (layer == (layersD->active_layer))
{
next = g_slist_next (list);
break;
}
prev = list;
list = g_slist_next (list);
}
if (next)
{
layer = (Layer *) next->data;
next_alpha = layer_has_alpha (layer);
}
else
next_alpha = FALSE;
#define SET_SENSITIVE(menu,condition) \
menus_set_sensitive ("<Layers>/" menu, (condition) != 0)
#define SET_OPS_SENSITIVE(button,condition) \
gtk_widget_set_sensitive (layers_ops_buttons[(button)].widget, \
(condition) != 0)
SET_SENSITIVE ("New Layer...", gimage);
SET_OPS_SENSITIVE (0, gimage);
SET_SENSITIVE ("Stack/Raise Layer",
fs && ac && gimage && lp && alpha && prev);
SET_OPS_SENSITIVE (1, fs && ac && gimage && lp && alpha && prev);
SET_SENSITIVE ("Stack/Lower Layer",
fs && ac && gimage && lp && next && next_alpha);
SET_OPS_SENSITIVE (2, fs && ac && gimage && lp && next && next_alpha);
SET_SENSITIVE ("Stack/Layer to Top",
fs && ac && gimage && lp && alpha && prev);
SET_SENSITIVE ("Stack/Layer to Bottom",
fs && ac && gimage && lp && next && next_alpha);
SET_SENSITIVE ("Duplicate Layer", fs && ac && gimage && lp);
SET_OPS_SENSITIVE (3, fs && ac && gimage && lp);
SET_SENSITIVE ("Anchor Layer", !fs && ac && gimage && lp);
SET_OPS_SENSITIVE (4, !fs && ac && gimage && lp);
SET_SENSITIVE ("Delete Layer", ac && gimage && lp);
SET_OPS_SENSITIVE (5, ac && gimage && lp);
SET_SENSITIVE ("Layer Boundary Size...", ac && gimage && lp);
SET_SENSITIVE ("Layer to Imagesize", ac && gimage && lp);
SET_SENSITIVE ("Scale Layer...", ac && gimage && lp);
SET_SENSITIVE ("Merge Visible Layers...", fs && ac && gimage && lp);
SET_SENSITIVE ("Merge Down", fs && ac && gimage && lp && next);
SET_SENSITIVE ("Flatten Image", fs && ac && gimage && lp);
SET_SENSITIVE ("Add Layer Mask...",
fs && ac && gimage && !lm && lp && alpha && !indexed);
SET_SENSITIVE ("Apply Layer Mask", fs && ac && gimage && lm && lp);
SET_SENSITIVE ("Delete Layer Mask", fs && ac && gimage && lm && lp);
SET_SENSITIVE ("Mask to Selection", fs && ac && gimage && lm && lp);
SET_SENSITIVE ("Add Alpha Channel", !alpha);
SET_SENSITIVE ("Alpha to Selection", fs && ac && gimage && lp && alpha);
SET_SENSITIVE ("Edit Layer Attributes...", ac && gimage && lp);
#undef SET_OPS_SENSITIVE
#undef SET_SENSITIVE
/* set mode, preserve transparency and opacity to insensitive
* if there are no layers
*/
gtk_widget_set_sensitive (layersD->preserve_trans, lp);
gtk_widget_set_sensitive (layersD->opacity_box, lp);
gtk_widget_set_sensitive (layersD->mode_box, lp);
}
static void
layers_dialog_scroll_index (gint index)
{
LayerWidget *layer_widget;
GtkAdjustment *adj;
gint item_height;
if (!layersD->layer_widgets)
return;
layer_widget = (LayerWidget *) layersD->layer_widgets->data;
item_height = layer_widget->list_item->allocation.height;
adj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (layersD->scrolled_win));
if (index * item_height < adj->value)
{
adj->value = index * item_height;
gtk_adjustment_value_changed (adj);
}
else if ((index + 1) * item_height > adj->value + adj->page_size)
{
adj->value = (index + 1) * item_height - adj->page_size;
gtk_adjustment_value_changed (adj);
}
}
/* Commented out because this piece of code produced strange segfaults
static gint
layer_dialog_idle_set_active_layer_focus (gpointer data)
{
gtk_widget_grab_focus (GTK_WIDGET (data));
return FALSE;
}
*/
static void
layers_dialog_set_active_layer (Layer *layer)
{
LayerWidget *layer_widget;
GtkStateType state;
gint index;
layer_widget = layer_widget_get_ID (layer);
if (!layersD || !layer_widget)
return;
/* Make sure the gimage is not notified of this change */
suspend_gimage_notify++;
state = layer_widget->list_item->state;
index = gimp_image_get_layer_index (layer_widget->gimage, layer);
if ((index >= 0) && (state != GTK_STATE_SELECTED))
{
gtk_object_set_user_data (GTK_OBJECT (layer_widget->list_item), NULL);
gtk_list_select_item (GTK_LIST (layersD->layer_list), index);
/* let dnd finish it's work before setting the focus */
/* Commented out because this piece of code produced strange segfaults
gtk_idle_add ((GtkFunction) layer_dialog_idle_set_active_layer_focus,
layer_widget->list_item);
*/
gtk_object_set_user_data (GTK_OBJECT (layer_widget->list_item),
layer_widget);
layers_dialog_scroll_index (index);
}
suspend_gimage_notify--;
}
static void
layers_dialog_unset_layer (Layer *layer)
{
LayerWidget *layer_widget;
GtkStateType state;
gint index;
layer_widget = layer_widget_get_ID (layer);
if (!layersD || !layer_widget)
return;
/* Make sure the gimage is not notified of this change */
suspend_gimage_notify++;
state = layer_widget->list_item->state;
index = gimp_image_get_layer_index (layer_widget->gimage, layer);
if ((index >= 0) && (state == GTK_STATE_SELECTED))
{
gtk_object_set_user_data (GTK_OBJECT (layer_widget->list_item), NULL);
gtk_list_unselect_item (GTK_LIST (layersD->layer_list), index);
gtk_object_set_user_data (GTK_OBJECT (layer_widget->list_item),
layer_widget);
}
suspend_gimage_notify--;
}
static void
layers_dialog_position_layer (Layer *layer,
gint new_index)
{
LayerWidget *layer_widget;
GList *list = NULL;
layer_widget = layer_widget_get_ID (layer);
if (!layersD || !layer_widget)
return;
if (new_index == g_slist_index (layersD->layer_widgets, layer_widget))
return;
/* Make sure the gimage is not notified of this change */
suspend_gimage_notify++;
/* Remove the layer from the dialog */
list = g_list_append (list, layer_widget->list_item);
gtk_list_remove_items (GTK_LIST (layersD->layer_list), list);
layersD->layer_widgets = g_slist_remove (layersD->layer_widgets,
layer_widget);
/* Add it back at the proper index */
gtk_list_insert_items (GTK_LIST (layersD->layer_list), list, new_index);
layersD->layer_widgets = g_slist_insert (layersD->layer_widgets,
layer_widget, new_index);
/* Adjust the scrollbar so the layer is visible */
layers_dialog_scroll_index (new_index > 0 ? new_index + 1 : 0);
suspend_gimage_notify--;
}
static void
invalidate_preview_callback (GtkWidget *widget,
LayerWidget *layer_widget)
{
layer_widget->layer_pixmap_valid = FALSE;
/* synthesize an expose event */
gtk_widget_queue_draw (layer_widget->layer_preview);
}
static void
layers_dialog_add_layer (Layer *layer)
{
LayerWidget *layer_widget;
GimpImage *gimage;
GList *item_list;
gint position;
if (!layersD || !layer || !(gimage = layersD->gimage))
return;
item_list = NULL;
layer_widget = layer_widget_create (gimage, layer);
item_list = g_list_append (item_list, layer_widget->list_item);
position = gimp_image_get_layer_index (gimage, layer);
layersD->layer_widgets =
g_slist_insert (layersD->layer_widgets, layer_widget, position);
gtk_list_insert_items (GTK_LIST (layersD->layer_list), item_list, position);
}
static void
layers_dialog_remove_layer (Layer *layer)
{
LayerWidget *layer_widget;
GList *list = NULL;
layer_widget = layer_widget_get_ID (layer);
if (!layersD || !layer_widget)
return;
/* Make sure the gimage is not notified of this change */
suspend_gimage_notify++;
/* Remove the requested layer from the dialog */
list = g_list_append (list, layer_widget->list_item);
gtk_list_remove_items (GTK_LIST (layersD->layer_list), list);
/* Delete layer widget */
layer_widget_delete (layer_widget);
suspend_gimage_notify--;
}
static void
layers_dialog_add_layer_mask (Layer *layer)
{
LayerWidget *layer_widget;
layer_widget = layer_widget_get_ID (layer);
if (!layersD || !layer_widget)
return;
if (! GTK_WIDGET_VISIBLE (layer_widget->mask_preview))
{
gtk_object_set_data (GTK_OBJECT (layer_widget->mask_preview),
"gimp_layer_mask", layer_get_mask (layer));
gtk_widget_show (layer_widget->mask_preview);
}
layer_widget->active_preview = MASK_PREVIEW;
gtk_widget_queue_draw (layer_widget->layer_preview);
}
static void
layers_dialog_remove_layer_mask (Layer *layer)
{
LayerWidget *layer_widget;
layer_widget = layer_widget_get_ID (layer);
if (!layersD || !layer_widget)
return;
if (GTK_WIDGET_VISIBLE (layer_widget->mask_preview))
{
gtk_object_set_data (GTK_OBJECT (layer_widget->mask_preview),
"gimp_layer_mask", NULL);
gtk_widget_hide (layer_widget->mask_preview);
}
layer_widget->active_preview = LAYER_PREVIEW;
gtk_widget_queue_draw (layer_widget->layer_preview);
gtk_widget_queue_resize (layer_widget->layer_preview->parent);
}
/*****************************************************/
/* paint mode, opacity & preserve trans. functions */
/*****************************************************/
static void
paint_mode_menu_callback (GtkWidget *widget,
gpointer data)
{
GimpImage *gimage;
Layer *layer;
LayerModeEffects mode;
if (!(gimage = layersD->gimage) || !(layer = gimage->active_layer))
return;
/* If the layer has an alpha channel, set the transparency and redraw */
if (layer_has_alpha (layer))
{
mode = (LayerModeEffects) gtk_object_get_user_data (GTK_OBJECT (widget));
if (layer->mode != mode)
{
layer->mode = mode;
drawable_update (GIMP_DRAWABLE (layer), 0, 0,
GIMP_DRAWABLE (layer)->width,
GIMP_DRAWABLE (layer)->height);
gdisplays_flush ();
}
}
}
static void
opacity_scale_update (GtkAdjustment *adjustment,
gpointer data)
{
GimpImage *gimage;
Layer *layer;
gint opacity;
if (!(gimage = layersD->gimage) || !(layer = gimage->active_layer))
return;
/* add the 0.001 to insure there are no subtle rounding errors */
opacity = (gint) (adjustment->value * 2.55 + 0.001);
if (layer->opacity != opacity)
{
layer->opacity = opacity;
drawable_update (GIMP_DRAWABLE (layer), 0, 0,
GIMP_DRAWABLE (layer)->width,
GIMP_DRAWABLE (layer)->height);
gdisplays_flush ();
}
}
static void
preserve_trans_update (GtkWidget *widget,
gpointer data)
{
GimpImage *gimage;
Layer *layer;
if (!(gimage = layersD->gimage) || !(layer = gimage->active_layer))
return;
if (GTK_TOGGLE_BUTTON (widget)->active)
layer->preserve_trans = TRUE;
else
layer->preserve_trans = FALSE;
}
/********************************/
/* layer list events callback */
/********************************/
static gint
layer_list_events (GtkWidget *widget,
GdkEvent *event,
gpointer data)
{
LayerWidget *layer_widget;
GdkEventButton *bevent;
GtkWidget *event_widget;
event_widget = gtk_get_event_widget (event);
if (GTK_IS_LIST_ITEM (event_widget))
{
layer_widget =
(LayerWidget *) gtk_object_get_user_data (GTK_OBJECT (event_widget));
switch (event->type)
{
case GDK_BUTTON_PRESS:
bevent = (GdkEventButton *) event;
if (bevent->button == 3)
{
gtk_menu_popup (GTK_MENU (layersD->ops_menu),
NULL, NULL, NULL, NULL,
bevent->button, bevent->time);
return TRUE;
}
break;
case GDK_2BUTTON_PRESS:
layers_dialog_edit_layer_query (layer_widget);
return TRUE;
default:
break;
}
}
return FALSE;
}
/*****************************/
/* layers dialog callbacks */
/*****************************/
static void
layers_dialog_map_callback (GtkWidget *widget,
gpointer data)
{
if (! layersD)
return;
gtk_window_add_accel_group (GTK_WINDOW (lc_dialog->shell),
layersD->accel_group);
}
static void
layers_dialog_unmap_callback (GtkWidget *widget,
gpointer data)
{
if (! layersD)
return;
gtk_window_remove_accel_group (GTK_WINDOW (lc_dialog->shell),
layersD->accel_group);
}
/***********************************/
/* callbacks exported to menus.c */
/***********************************/
void
layers_dialog_previous_layer_callback (GtkWidget *widget,
gpointer data)
{
GimpImage *gimage;
Layer *new_layer;
gint current_layer;
if (!layersD || !(gimage = layersD->gimage))
return;
current_layer =
gimp_image_get_layer_index (gimage, gimage->active_layer);
new_layer = gimp_image_get_layer_by_index (gimage, current_layer - 1);
if (new_layer)
{
gimp_image_set_active_layer (gimage, new_layer);
gdisplays_flush ();
}
}
void
layers_dialog_next_layer_callback (GtkWidget *widget,
gpointer data)
{
GimpImage *gimage;
Layer *new_layer;
gint current_layer;
if (!layersD || !(gimage = layersD->gimage))
return;
current_layer =
gimp_image_get_layer_index (gimage, gimage->active_layer);
new_layer = gimp_image_get_layer_by_index (gimage, current_layer + 1);
if (new_layer)
{
gimp_image_set_active_layer (gimage, new_layer);
gdisplays_flush ();
}
}
void
layers_dialog_raise_layer_callback (GtkWidget *widget,
gpointer data)
{
GimpImage *gimage;
if (!layersD || !(gimage = layersD->gimage))
return;
gimp_image_raise_layer (gimage, gimage->active_layer);
gdisplays_flush ();
}
void
layers_dialog_lower_layer_callback (GtkWidget *widget,
gpointer data)
{
GimpImage *gimage;
if (!layersD || !(gimage = layersD->gimage))
return;
gimp_image_lower_layer (gimage, gimage->active_layer);
gdisplays_flush ();
}
void
layers_dialog_raise_layer_to_top_callback (GtkWidget *widget,
gpointer data)
{
GimpImage *gimage;
if (!layersD || !(gimage = layersD->gimage))
return;
gimp_image_raise_layer_to_top (gimage, gimage->active_layer);
gdisplays_flush ();
}
void
layers_dialog_lower_layer_to_bottom_callback (GtkWidget *widget,
gpointer data)
{
GimpImage *gimage;
if (!layersD || !(gimage = layersD->gimage))
return;
gimp_image_lower_layer_to_bottom (gimage, gimage->active_layer);
gdisplays_flush ();
}
void
layers_dialog_new_layer_callback (GtkWidget *widget,
gpointer data)
{
GimpImage *gimage;
Layer *layer;
if (!layersD || !(gimage = layersD->gimage))
return;
/* If there is a floating selection, the new command transforms
* the current fs into a new layer
*/
if ((layer = gimp_image_floating_sel (gimage)))
{
floating_sel_to_layer (layer);
gdisplays_flush ();
}
else
layers_dialog_new_layer_query (layersD->gimage);
}
void
layers_dialog_duplicate_layer_callback (GtkWidget *widget,
gpointer data)
{
GimpImage *gimage;
Layer *active_layer;
Layer *new_layer;
if (!layersD || !(gimage = layersD->gimage))
return;
/* Start a group undo */
undo_push_group_start (gimage, LAYER_ADD_UNDO);
active_layer = gimp_image_get_active_layer (gimage);
new_layer = layer_copy (active_layer, TRUE);
gimp_image_add_layer (gimage, new_layer, -1);
/* End the group undo */
undo_push_group_end (gimage);
gdisplays_flush ();
}
void
layers_dialog_delete_layer_callback (GtkWidget *widget,
gpointer data)
{
GimpImage *gimage;
Layer *layer;
if (!layersD ||
!(gimage = layersD->gimage) ||
!(layer = gimp_image_get_active_layer (gimage)))
return;
/* if the layer is a floating selection, take special care */
if (layer_is_floating_sel (layer))
floating_sel_remove (layer);
else
gimp_image_remove_layer (gimage, gimage->active_layer);
gdisplays_flush_now ();
}
void
layers_dialog_scale_layer_callback (GtkWidget *widget,
gpointer data)
{
GimpImage *gimage;
if (!layersD || !(gimage = layersD->gimage))
return;
layers_dialog_scale_layer_query (gimage, gimage->active_layer);
}
void
layers_dialog_resize_layer_callback (GtkWidget *widget,
gpointer data)
{
GimpImage *gimage;
if (!layersD || !(gimage = layersD->gimage))
return;
layers_dialog_resize_layer_query (gimage, gimage->active_layer);
}
void
layers_dialog_resize_to_image_callback (GtkWidget *widget,
gpointer data)
{
GimpImage *gimage;
if (!layersD || !(gimage = layersD->gimage))
return;
layer_resize_to_image (gimage->active_layer);
gdisplays_flush ();
}
void
layers_dialog_add_layer_mask_callback (GtkWidget *widget,
gpointer data)
{
GimpImage *gimage;
if (!layersD || !(gimage = layersD->gimage))
return;
layers_dialog_add_mask_query (gimage->active_layer);
}
void
layers_dialog_apply_layer_mask_callback (GtkWidget *widget,
gpointer data)
{
GimpImage *gimage;
Layer *layer;
if (!layersD || !(gimage = layersD->gimage))
return;
/* Make sure there is a layer mask to apply */
if ((layer = gimage->active_layer) != NULL &&
layer_get_mask (layer))
{
gboolean flush = !layer->apply_mask || layer->show_mask;
gimp_image_remove_layer_mask (drawable_gimage (GIMP_DRAWABLE (layer)),
layer, APPLY);
if (flush)
{
gdisplays_flush ();
}
else
{
LayerWidget *layer_widget = layer_widget_get_ID (layer);
layer_widget_layer_flush (layer_widget->list_item, NULL);
layers_dialog_set_menu_sensitivity ();
}
}
}
void
layers_dialog_delete_layer_mask_callback (GtkWidget *widget,
gpointer data)
{
GimpImage *gimage;
Layer *layer;
if (!layersD || !(gimage = layersD->gimage))
return;
/* Make sure there is a layer mask to apply */
if ((layer = gimage->active_layer) != NULL &&
layer_get_mask (layer))
{
gboolean flush = layer->apply_mask || layer->show_mask;
gimp_image_remove_layer_mask (drawable_gimage (GIMP_DRAWABLE (layer)),
layer, DISCARD);
if (flush)
{
gdisplays_flush ();
}
else
{
LayerWidget *layer_widget = layer_widget_get_ID (layer);
layer_widget_layer_flush (layer_widget->list_item, NULL);
layers_dialog_set_menu_sensitivity ();
}
}
}
void
layers_dialog_anchor_layer_callback (GtkWidget *widget,
gpointer data)
{
GimpImage *gimage;
if (!layersD || !(gimage = layersD->gimage))
return;
floating_sel_anchor (gimp_image_get_active_layer (gimage));
gdisplays_flush ();
}
void
layers_dialog_merge_layers_callback (GtkWidget *widget,
gpointer data)
{
GimpImage *gimage;
if (!layersD || !(gimage = layersD->gimage))
return;
layers_dialog_layer_merge_query (gimage, TRUE);
}
void
layers_dialog_merge_down_callback (GtkWidget *widget,
gpointer data)
{
GimpImage *gimage;
if (!layersD || !(gimage = layersD->gimage))
return;
gimp_image_merge_down (gimage, gimage->active_layer, EXPAND_AS_NECESSARY);
gdisplays_flush ();
}
void
layers_dialog_flatten_image_callback (GtkWidget *widget,
gpointer data)
{
GimpImage *gimage;
if (!layersD || !(gimage = layersD->gimage))
return;
gimp_image_flatten (gimage);
gdisplays_flush ();
}
void
layers_dialog_alpha_select_callback (GtkWidget *widget,
gpointer data)
{
GimpImage *gimage;
if (!layersD || !(gimage = layersD->gimage))
return;
gimage_mask_layer_alpha (gimage, gimage->active_layer);
gdisplays_flush ();
}
void
layers_dialog_mask_select_callback (GtkWidget *widget,
gpointer data)
{
GimpImage *gimage;
if (!layersD || !(gimage = layersD->gimage))
return;
gimage_mask_layer_mask (gimage, gimage->active_layer);
gdisplays_flush ();
}
void
layers_dialog_add_alpha_channel_callback (GtkWidget *widget,
gpointer data)
{
GimpImage *gimage;
Layer *layer;
if (!layersD ||
!(gimage = layersD->gimage) ||
!(layer = gimp_image_get_active_layer (gimage)))
return;
layer_add_alpha (layer);
gdisplays_flush ();
}
void
layers_dialog_edit_layer_attributes_callback (GtkWidget *widget,
gpointer data)
{
if (layersD && layersD->active_layer)
{
LayerWidget *layer_widget;
layer_widget = layer_widget_get_ID (layersD->active_layer);
layers_dialog_edit_layer_query (layer_widget);
}
}
/*******************************/
/* ops buttons dnd callbacks */
/*******************************/
static gboolean
layers_dialog_drag_new_layer_callback (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time)
{
GtkWidget *src_widget;
gboolean return_val = FALSE;
if ((src_widget = gtk_drag_get_source_widget (context)))
{
Layer *layer = NULL;
layer = (Layer *) gtk_object_get_data (GTK_OBJECT (src_widget),
"gimp_layer");
if (layer &&
layer == layersD->active_layer)
{
Layer *new_layer;
GimpImage *gimage;
gint width, height;
gint off_x, off_y;
gimage = layersD->gimage;
width = gimp_drawable_width (GIMP_DRAWABLE (layer));
height = gimp_drawable_height (GIMP_DRAWABLE (layer));
gimp_drawable_offsets (GIMP_DRAWABLE (layer), &off_x, &off_y);
/* Start a group undo */
undo_push_group_start (gimage, EDIT_PASTE_UNDO);
new_layer = layer_new (gimage, width, height,
gimp_image_base_type_with_alpha (gimage),
_("Empty Layer Copy"),
layer->opacity,
layer->mode);
if (new_layer)
{
drawable_fill (GIMP_DRAWABLE (new_layer), TRANSPARENT_FILL);
layer_translate (new_layer, off_x, off_y);
gimp_image_add_layer (gimage, new_layer, -1);
/* End the group undo */
undo_push_group_end (gimage);
gdisplays_flush ();
}
else
{
g_message ("layers_dialog_drop_new_layer_callback():\n"
"could not allocate new layer");
}
return_val = TRUE;
}
}
gtk_drag_finish (context, return_val, FALSE, time);
return return_val;
}
static gboolean
layers_dialog_drag_duplicate_layer_callback (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time)
{
GtkWidget *src_widget;
gboolean return_val = FALSE;
if ((src_widget = gtk_drag_get_source_widget (context)))
{
Layer *layer;
layer = (Layer *) gtk_object_get_data (GTK_OBJECT (src_widget),
"gimp_layer");
if (layer &&
layer == layersD->active_layer &&
! layer_is_floating_sel (layer))
{
layers_dialog_duplicate_layer_callback (widget, NULL);
return_val = TRUE;
}
}
gtk_drag_finish (context, return_val, FALSE, time);
return return_val;
}
static gboolean
layers_dialog_drag_trashcan_callback (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time)
{
GtkWidget *src_widget;
gboolean return_val = FALSE;
if ((src_widget = gtk_drag_get_source_widget (context)))
{
Layer *layer;
LayerMask *layer_mask;
layer = (Layer *) gtk_object_get_data (GTK_OBJECT (src_widget),
"gimp_layer");
layer_mask = (LayerMask *) gtk_object_get_data (GTK_OBJECT (src_widget),
"gimp_layer_mask");
if (layer &&
layer == layersD->active_layer)
{
layers_dialog_delete_layer_callback (widget, NULL);
return_val = TRUE;
}
else if (layer_mask &&
layer_mask_get_layer (layer_mask) == layersD->active_layer)
{
layers_dialog_delete_layer_mask_callback (widget, NULL);
return_val = TRUE;
}
}
gtk_drag_finish (context, return_val, FALSE, time);
return return_val;
}
/****************************/
/* layer widget functions */
/****************************/
static LayerWidget *
layer_widget_get_ID (Layer *ID)
{
LayerWidget *lw;
GSList *list;
if (! layersD)
return NULL;
for (list = layersD->layer_widgets; list; list = g_slist_next (list))
{
lw = (LayerWidget *) list->data;
if (lw->layer == ID)
return lw;
}
return NULL;
}
static LayerWidget *
layer_widget_create (GimpImage *gimage,
Layer *layer)
{
LayerWidget *layer_widget;
GtkWidget *list_item;
GtkWidget *hbox;
GtkWidget *vbox;
GtkWidget *alignment;
list_item = gtk_list_item_new ();
/* create the layer widget and add it to the list */
layer_widget = g_new (LayerWidget, 1);
layer_widget->gimage = gimage;
layer_widget->layer = layer;
layer_widget->list_item = list_item;
layer_widget->layer_preview = NULL;
layer_widget->mask_preview = NULL;
layer_widget->layer_pixmap = NULL;
layer_widget->mask_pixmap = NULL;
layer_widget->width = -1;
layer_widget->height = -1;
layer_widget->layer_mask = (layer_get_mask (layer) != NULL);
layer_widget->apply_mask = layer->apply_mask;
layer_widget->edit_mask = layer->edit_mask;
layer_widget->show_mask = layer->show_mask;
layer_widget->visited = TRUE;
layer_widget->drop_type = GIMP_DROP_NONE;
layer_widget->layer_pixmap_valid = FALSE;
if (layer_get_mask (layer))
layer_widget->active_preview =
(layer->edit_mask) ? MASK_PREVIEW : LAYER_PREVIEW;
else
layer_widget->active_preview = LAYER_PREVIEW;
/* Need to let the list item know about the layer_widget */
gtk_object_set_user_data (GTK_OBJECT (list_item), layer_widget);
/* set up the list item observer */
gtk_signal_connect (GTK_OBJECT (list_item), "select",
GTK_SIGNAL_FUNC (layer_widget_select_update),
layer_widget);
gtk_signal_connect (GTK_OBJECT (list_item), "deselect",
GTK_SIGNAL_FUNC (layer_widget_select_update),
layer_widget);
vbox = gtk_vbox_new (FALSE, 1);
gtk_container_add (GTK_CONTAINER (list_item), vbox);
hbox = gtk_hbox_new (FALSE, 1);
gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 1);
/* Create the visibility toggle button */
alignment = gtk_alignment_new (0.5, 0.5, 0.0, 0.0);
gtk_box_pack_start (GTK_BOX (hbox), alignment, FALSE, TRUE, 2);
layer_widget->eye_widget = gtk_drawing_area_new ();
gtk_drawing_area_size (GTK_DRAWING_AREA (layer_widget->eye_widget),
eye_width, eye_height);
gtk_widget_set_events (layer_widget->eye_widget, BUTTON_EVENT_MASK);
gtk_signal_connect (GTK_OBJECT (layer_widget->eye_widget), "event",
GTK_SIGNAL_FUNC (layer_widget_button_events),
layer_widget);
gtk_object_set_user_data (GTK_OBJECT (layer_widget->eye_widget), layer_widget);
gtk_container_add (GTK_CONTAINER (alignment), layer_widget->eye_widget);
gtk_widget_show (layer_widget->eye_widget);
gtk_widget_show (alignment);
/* Create the link toggle button */
alignment = gtk_alignment_new (0.5, 0.5, 0.0, 0.0);
gtk_box_pack_start (GTK_BOX (hbox), alignment, FALSE, TRUE, 2);
layer_widget->linked_widget = gtk_drawing_area_new ();
gtk_drawing_area_size (GTK_DRAWING_AREA (layer_widget->linked_widget),
eye_width, eye_height);
gtk_widget_set_events (layer_widget->linked_widget, BUTTON_EVENT_MASK);
gtk_signal_connect (GTK_OBJECT (layer_widget->linked_widget), "event",
GTK_SIGNAL_FUNC (layer_widget_button_events),
layer_widget);
gtk_object_set_user_data (GTK_OBJECT (layer_widget->linked_widget),
layer_widget);
gtk_container_add (GTK_CONTAINER (alignment), layer_widget->linked_widget);
gtk_widget_show (layer_widget->linked_widget);
gtk_widget_show (alignment);
/* The layer preview */
alignment = gtk_alignment_new (0.5, 0.5, 0.0, 0.0);
gtk_box_pack_start (GTK_BOX (hbox), alignment, FALSE, FALSE, 2);
gtk_widget_show (alignment);
layer_widget->layer_preview = gtk_drawing_area_new ();
gtk_drawing_area_size (GTK_DRAWING_AREA (layer_widget->layer_preview),
layersD->image_width + 4, layersD->image_height + 4);
gtk_widget_set_events (layer_widget->layer_preview, PREVIEW_EVENT_MASK);
gtk_signal_connect_while_alive (GTK_OBJECT (layer_widget->layer_preview),
"event",
GTK_SIGNAL_FUNC (layer_widget_preview_events),
layer_widget,
GTK_OBJECT (layer));
gtk_object_set_user_data (GTK_OBJECT (layer_widget->layer_preview),
layer_widget);
gtk_container_add (GTK_CONTAINER (alignment), layer_widget->layer_preview);
gtk_widget_show (layer_widget->layer_preview);
/* The layer mask preview */
alignment = gtk_alignment_new (0.5, 0.5, 0.0, 0.0);
gtk_box_pack_start (GTK_BOX (hbox), alignment, FALSE, FALSE, 2);
gtk_widget_show (alignment);
layer_widget->mask_preview = gtk_drawing_area_new ();
gtk_drawing_area_size (GTK_DRAWING_AREA (layer_widget->mask_preview),
layersD->image_width + 4, layersD->image_height + 4);
gtk_widget_set_events (layer_widget->mask_preview, PREVIEW_EVENT_MASK);
gtk_signal_connect (GTK_OBJECT (layer_widget->mask_preview), "event",
GTK_SIGNAL_FUNC (layer_widget_preview_events),
layer_widget);
gtk_object_set_user_data (GTK_OBJECT (layer_widget->mask_preview),
layer_widget);
gtk_container_add (GTK_CONTAINER (alignment), layer_widget->mask_preview);
if (layer_get_mask (layer) != NULL)
{
gtk_object_set_data (GTK_OBJECT (layer_widget->mask_preview),
"gimp_layer_mask", layer_get_mask (layer));
gtk_widget_show (layer_widget->mask_preview);
}
/* dnd source */
gtk_drag_source_set (layer_widget->mask_preview,
GDK_BUTTON1_MASK | GDK_BUTTON2_MASK,
layer_mask_target_table, n_layer_mask_targets,
GDK_ACTION_MOVE | GDK_ACTION_COPY);
gtk_signal_connect (GTK_OBJECT (layer_widget->mask_preview), "drag_begin",
GTK_SIGNAL_FUNC (layer_mask_drag_begin_callback),
NULL);
/* the layer name label */
if (layer_is_floating_sel (layer))
layer_widget->label = gtk_label_new (_("Floating Selection"));
else
layer_widget->label = gtk_label_new (layer_get_name (layer));
gtk_box_pack_start (GTK_BOX (hbox), layer_widget->label, FALSE, FALSE, 2);
gtk_widget_show (layer_widget->label);
layer_widget->clip_widget = gtk_drawing_area_new ();
gtk_drawing_area_size (GTK_DRAWING_AREA (layer_widget->clip_widget), 1, 2);
gtk_widget_set_events (layer_widget->clip_widget, BUTTON_EVENT_MASK);
gtk_signal_connect (GTK_OBJECT (layer_widget->clip_widget), "event",
GTK_SIGNAL_FUNC (layer_widget_button_events),
layer_widget);
gtk_object_set_user_data (GTK_OBJECT (layer_widget->clip_widget), layer_widget);
gtk_box_pack_start (GTK_BOX (vbox), layer_widget->clip_widget,
FALSE, FALSE, 0);
/* gtk_widget_show (layer_widget->clip_widget); */
/* dnd destination */
gtk_drag_dest_set (list_item,
GTK_DEST_DEFAULT_ALL,
layer_target_table, n_layer_targets,
GDK_ACTION_MOVE);
gtk_signal_connect (GTK_OBJECT (list_item), "drag_leave",
GTK_SIGNAL_FUNC (layer_widget_drag_leave_callback),
NULL);
gtk_signal_connect (GTK_OBJECT (list_item), "drag_motion",
GTK_SIGNAL_FUNC (layer_widget_drag_motion_callback),
NULL);
gtk_signal_connect (GTK_OBJECT (list_item), "drag_drop",
GTK_SIGNAL_FUNC (layer_widget_drag_drop_callback),
NULL);
/* re-paint the drop indicator after drawing the widget */
gtk_signal_connect_after (GTK_OBJECT (list_item), "draw",
(GtkSignalFunc) layer_widget_drag_indicator_callback,
layer_widget);
/* dnd source */
gtk_drag_source_set (list_item,
GDK_BUTTON1_MASK | GDK_BUTTON2_MASK,
layer_target_table, n_layer_targets,
GDK_ACTION_MOVE | GDK_ACTION_COPY);
gtk_signal_connect (GTK_OBJECT (list_item), "drag_begin",
GTK_SIGNAL_FUNC (layer_widget_drag_begin_callback),
NULL);
gtk_object_set_data (GTK_OBJECT (list_item), "gimp_layer", (gpointer) layer);
gtk_widget_show (hbox);
gtk_widget_show (vbox);
gtk_widget_show (list_item);
gtk_widget_ref (layer_widget->list_item);
gtk_signal_connect_while_alive (GTK_OBJECT (layer), "invalidate_preview",
GTK_SIGNAL_FUNC (invalidate_preview_callback),
(gpointer)layer_widget,
GTK_OBJECT (layer_widget->list_item));
return layer_widget;
}
static gboolean
layer_widget_drag_motion_callback (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time)
{
LayerWidget *dest;
gint dest_index;
GtkWidget *src_widget;
LayerWidget *src;
gint src_index;
gint difference;
GimpDropType drop_type = GIMP_DROP_NONE;
GdkDragAction drag_action = GDK_ACTION_DEFAULT;
gboolean return_val = FALSE;
dest = (LayerWidget *) gtk_object_get_user_data (GTK_OBJECT (widget));
if (dest &&
layer_has_alpha (dest->layer) &&
(src_widget = gtk_drag_get_source_widget (context)))
{
src
= (LayerWidget *) gtk_object_get_user_data (GTK_OBJECT (src_widget));
if (src &&
layer_has_alpha (src->layer) &&
! layer_is_floating_sel (src->layer) &&
src->layer == layersD->active_layer)
{
src_index = gimp_image_get_layer_index (layersD->gimage,
src->layer);
dest_index = gimp_image_get_layer_index (layersD->gimage,
dest->layer);
difference = dest_index - src_index;
drop_type = ((y < widget->allocation.height / 2) ?
GIMP_DROP_ABOVE : GIMP_DROP_BELOW);
if (difference < 0 &&
drop_type == GIMP_DROP_BELOW)
{
dest_index++;
}
else if (difference > 0 &&
drop_type == GIMP_DROP_ABOVE)
{
dest_index--;
}
if (src_index != dest_index)
{
drag_action = GDK_ACTION_MOVE;
return_val = TRUE;
}
else
{
drop_type = GIMP_DROP_NONE;
}
}
}
gdk_drag_status (context, drag_action, time);
if (dest && drop_type != dest->drop_type)
{
layer_widget_draw_drop_indicator (dest, dest->drop_type);
layer_widget_draw_drop_indicator (dest, drop_type);
dest->drop_type = drop_type;
}
return return_val;
}
static void
layer_widget_drag_begin_callback (GtkWidget *widget,
GdkDragContext *context)
{
LayerWidget *layer_widget;
layer_widget =
(LayerWidget *) gtk_object_get_user_data (GTK_OBJECT (widget));
gimp_dnd_set_drawable_preview_icon (widget, context,
GIMP_DRAWABLE (layer_widget->layer));
}
static void
layer_mask_drag_begin_callback (GtkWidget *widget,
GdkDragContext *context)
{
LayerWidget *layer_widget;
layer_widget =
(LayerWidget *) gtk_object_get_user_data (GTK_OBJECT (widget));
gimp_dnd_set_drawable_preview_icon
(widget, context,
GIMP_DRAWABLE (layer_get_mask (layer_widget->layer)));
}
typedef struct
{
GimpImage *gimage;
Layer *layer;
gint dest_index;
} LayerDrop;
static gint
layer_widget_idle_drop_layer (gpointer data)
{
LayerDrop *ld;
ld = (LayerDrop *) data;
gimp_image_position_layer (ld->gimage, ld->layer, ld->dest_index, TRUE);
gdisplays_flush ();
g_free (ld);
return FALSE;
}
static gboolean
layer_widget_drag_drop_callback (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time)
{
LayerWidget *dest;
gint dest_index;
GtkWidget *src_widget;
LayerWidget *src;
gint src_index;
gint difference;
GimpDropType drop_type = GIMP_DROP_NONE;
gboolean return_val = FALSE;
dest = (LayerWidget *) gtk_object_get_user_data (GTK_OBJECT (widget));
if (dest &&
layer_has_alpha (dest->layer) &&
(src_widget = gtk_drag_get_source_widget (context)))
{
src =
(LayerWidget *) gtk_object_get_user_data (GTK_OBJECT (src_widget));
if (src &&
layer_has_alpha (src->layer) &&
! layer_is_floating_sel (src->layer) &&
src->layer == layersD->active_layer)
{
src_index =
gimp_image_get_layer_index (layersD->gimage, src->layer);
dest_index =
gimp_image_get_layer_index (layersD->gimage, dest->layer);
difference = dest_index - src_index;
drop_type = ((y < widget->allocation.height / 2) ?
GIMP_DROP_ABOVE : GIMP_DROP_BELOW);
if (difference < 0 &&
drop_type == GIMP_DROP_BELOW)
{
dest_index++;
}
else if (difference > 0 &&
drop_type == GIMP_DROP_ABOVE)
{
dest_index--;
}
if (src_index != dest_index)
{
LayerDrop *ld;
ld = g_new (LayerDrop, 1);
ld->gimage = layersD->gimage;
ld->layer = src->layer;
ld->dest_index = dest_index;
/* let dnd finish it's work before changing the widget tree */
gtk_idle_add ((GtkFunction) layer_widget_idle_drop_layer, ld);
return_val = TRUE;
}
}
}
if (dest)
{
if (!return_val)
layer_widget_draw_drop_indicator (dest, dest->drop_type);
dest->drop_type = GIMP_DROP_NONE;
}
gtk_drag_finish (context, return_val, FALSE, time);
return return_val;
}
static void
layer_widget_drag_leave_callback (GtkWidget *widget,
GdkDragContext *context,
guint time)
{
LayerWidget *layer_widget;
layer_widget =
(LayerWidget *) gtk_object_get_user_data (GTK_OBJECT (widget));
layer_widget->drop_type = GIMP_DROP_NONE;
}
static void
layer_widget_drag_indicator_callback (GtkWidget *widget,
gpointer data)
{
LayerWidget *layer_widget;
layer_widget =
(LayerWidget *) gtk_object_get_user_data (GTK_OBJECT (widget));
layer_widget_draw_drop_indicator (layer_widget, layer_widget->drop_type);
}
static void
layer_widget_draw_drop_indicator (LayerWidget *layer_widget,
GimpDropType drop_type)
{
static GdkGC *gc = NULL;
gint y = 0;
if (!gc)
{
GdkColor fg, bg;
gc = gdk_gc_new (layer_widget->list_item->window);
fg.pixel = 0xFFFFFFFF;
bg.pixel = 0x00000000;
gdk_gc_set_function (gc, GDK_INVERT);
gdk_gc_set_foreground (gc, &fg);
gdk_gc_set_background (gc, &bg);
gdk_gc_set_line_attributes (gc, 5, GDK_LINE_SOLID,
GDK_CAP_BUTT, GDK_JOIN_MITER);
}
if (drop_type != GIMP_DROP_NONE)
{
y = ((drop_type == GIMP_DROP_ABOVE) ?
3 : layer_widget->list_item->allocation.height - 4);
gdk_draw_line (layer_widget->list_item->window, gc,
2, y, layer_widget->list_item->allocation.width - 3, y);
}
}
static void
layer_widget_delete (LayerWidget *layer_widget)
{
if (layer_widget->layer_pixmap)
gdk_pixmap_unref (layer_widget->layer_pixmap);
if (layer_widget->mask_pixmap)
gdk_pixmap_unref (layer_widget->mask_pixmap);
/* Remove the layer widget from the list */
layersD->layer_widgets = g_slist_remove (layersD->layer_widgets, layer_widget);
/* Release the widget */
gtk_widget_unref (layer_widget->list_item);
g_free (layer_widget);
}
static void
layer_widget_select_update (GtkWidget *widget,
gpointer data)
{
LayerWidget *layer_widget;
if (! (layer_widget = (LayerWidget *) data))
return;
/* Is the list item being selected? */
if (widget->state != GTK_STATE_SELECTED)
return;
/* Only notify the gimage of an active layer change if necessary */
if (suspend_gimage_notify == 0)
{
/* set the gimage's active layer to be this layer */
gimp_image_set_active_layer (layer_widget->gimage, layer_widget->layer);
gdisplays_flush ();
}
}
static gint
layer_widget_button_events (GtkWidget *widget,
GdkEvent *event,
gpointer data)
{
LayerWidget *layer_widget;
GtkWidget *event_widget;
GdkEventButton *bevent;
gint return_val;
static gboolean button_down = FALSE;
static GtkWidget *click_widget = NULL;
static gint old_state;
static gint exclusive;
layer_widget =
(LayerWidget *) gtk_object_get_user_data (GTK_OBJECT (widget));
return_val = FALSE;
switch (event->type)
{
case GDK_EXPOSE:
if (widget == layer_widget->eye_widget)
layer_widget_eye_redraw (layer_widget);
else if (widget == layer_widget->linked_widget)
layer_widget_linked_redraw (layer_widget);
else if (widget == layer_widget->clip_widget)
layer_widget_clip_redraw (layer_widget);
break;
case GDK_BUTTON_PRESS:
return_val = TRUE;
bevent = (GdkEventButton *) event;
if (bevent->button == 3)
{
gtk_menu_popup (GTK_MENU (layersD->ops_menu),
NULL, NULL, NULL, NULL,
3, bevent->time);
return TRUE;
}
button_down = TRUE;
click_widget = widget;
gtk_grab_add (click_widget);
if (widget == layer_widget->eye_widget)
{
old_state = GIMP_DRAWABLE (layer_widget->layer)->visible;
/* If this was a shift-click, make all/none visible */
if (event->button.state & GDK_SHIFT_MASK)
{
exclusive = TRUE;
layer_widget_exclusive_visible (layer_widget);
}
else
{
exclusive = FALSE;
GIMP_DRAWABLE (layer_widget->layer)->visible =
!GIMP_DRAWABLE (layer_widget->layer)->visible;
layer_widget_eye_redraw (layer_widget);
}
}
else if (widget == layer_widget->linked_widget)
{
old_state = layer_widget->layer->linked;
layer_widget->layer->linked = !layer_widget->layer->linked;
layer_widget_linked_redraw (layer_widget);
}
break;
case GDK_BUTTON_RELEASE:
return_val = TRUE;
button_down = FALSE;
gtk_grab_remove (click_widget);
if (widget == layer_widget->eye_widget)
{
if (exclusive)
{
gimp_image_invalidate_preview (layer_widget->gimage);
gdisplays_update_area (layer_widget->gimage, 0, 0,
layer_widget->gimage->width,
layer_widget->gimage->height);
gdisplays_flush ();
}
else if (old_state != GIMP_DRAWABLE (layer_widget->layer)->visible)
{
/* Invalidate the gimage preview */
gimp_image_invalidate_preview (layer_widget->gimage);
drawable_update (GIMP_DRAWABLE (layer_widget->layer), 0, 0,
GIMP_DRAWABLE (layer_widget->layer)->width,
GIMP_DRAWABLE (layer_widget->layer)->height);
gdisplays_flush ();
}
}
else if ((widget == layer_widget->linked_widget) &&
(old_state != layer_widget->layer->linked))
{
}
break;
case GDK_LEAVE_NOTIFY:
event_widget = gtk_get_event_widget (event);
if (button_down && (event_widget == click_widget))
{
/* the user moved the cursor out of the widget before
releasing the button -> cancel the button_press */
button_down = FALSE;
if (widget == layer_widget->eye_widget)
{
if (exclusive)
{
layer_widget_exclusive_visible (layer_widget);
}
else
{
GIMP_DRAWABLE (layer_widget->layer)->visible =
!GIMP_DRAWABLE (layer_widget->layer)->visible;
layer_widget_eye_redraw (layer_widget);
}
}
else if (widget == layer_widget->linked_widget)
{
layer_widget->layer->linked = !layer_widget->layer->linked;
layer_widget_linked_redraw (layer_widget);
}
}
break;
default:
break;
}
return return_val;
}
static gint
layer_widget_preview_events (GtkWidget *widget,
GdkEvent *event,
gpointer data)
{
LayerWidget *layer_widget;
GdkEventExpose *eevent;
GdkEventButton *bevent;
GdkPixmap **pixmap;
gboolean valid;
gint preview_type;
gint sx, sy, dx, dy, w, h;
pixmap = NULL;
valid = FALSE;
layer_widget =
(LayerWidget *) gtk_object_get_user_data (GTK_OBJECT (widget));
g_return_val_if_fail (layer_widget != NULL, FALSE);
g_return_val_if_fail (layer_widget->layer != NULL, FALSE);
if (!GIMP_IS_DRAWABLE (layer_widget->layer))
return FALSE;
if (widget == layer_widget->layer_preview)
preview_type = LAYER_PREVIEW;
else if (widget == layer_widget->mask_preview && GTK_WIDGET_VISIBLE (widget))
preview_type = MASK_PREVIEW;
else
return FALSE;
switch (preview_type)
{
case LAYER_PREVIEW:
pixmap = &layer_widget->layer_pixmap;
valid = GIMP_DRAWABLE (layer_widget->layer)->preview_valid;
break;
case MASK_PREVIEW:
pixmap = &layer_widget->mask_pixmap;
valid =
GIMP_DRAWABLE (layer_get_mask (layer_widget->layer))->preview_valid;
break;
}
if (layer_is_floating_sel (layer_widget->layer))
preview_type = FS_PREVIEW;
switch (event->type)
{
case GDK_BUTTON_PRESS:
/* Control-button press disables the application of the mask */
bevent = (GdkEventButton *) event;
if (bevent->button == 3)
{
gtk_menu_popup (GTK_MENU (layersD->ops_menu),
NULL, NULL, NULL, NULL,
3, bevent->time);
return TRUE;
}
if (event->button.state & GDK_CONTROL_MASK)
{
if (preview_type == MASK_PREVIEW)
{
gimage_set_layer_mask_apply (layer_widget->gimage,
layer_widget->layer);
gdisplays_flush ();
}
}
/* Alt-button press makes the mask visible instead of the layer */
else if (event->button.state & GDK_MOD1_MASK)
{
if (preview_type == MASK_PREVIEW)
{
gimage_set_layer_mask_show (layer_widget->gimage,
layer_widget->layer);
gdisplays_flush ();
}
}
else if (layer_widget->active_preview != preview_type)
{
gimage_set_layer_mask_edit (layer_widget->gimage,
layer_widget->layer,
(preview_type == MASK_PREVIEW));
gdisplays_flush ();
}
break;
case GDK_EXPOSE:
if (!preview_size && preview_type != FS_PREVIEW)
layer_widget_no_preview_redraw (layer_widget, preview_type);
else
{
if (!valid || !*pixmap)
{
layer_widget_preview_redraw (layer_widget, preview_type);
gdk_draw_pixmap (widget->window,
widget->style->black_gc,
*pixmap,
0, 0, 2, 2,
layersD->image_width,
layersD->image_height);
}
else
{
eevent = (GdkEventExpose *) event;
w = eevent->area.width;
h = eevent->area.height;
if (eevent->area.x < 2)
{
sx = eevent->area.x;
dx = 2;
w -= (2 - eevent->area.x);
}
else
{
sx = eevent->area.x - 2;
dx = eevent->area.x;
}
if (eevent->area.y < 2)
{
sy = eevent->area.y;
dy = 2;
h -= (2 - eevent->area.y);
}
else
{
sy = eevent->area.y - 2;
dy = eevent->area.y;
}
if ((sx + w) >= layersD->image_width)
w = layersD->image_width - sx;
if ((sy + h) >= layersD->image_height)
h = layersD->image_height - sy;
if ((w > 0) && (h > 0))
{
/*
Expose events are optimzed away by GTK+ if the widget is not
visible. Therefore, previews not visible in the layers_dialog
are not redrawn when they invalidate. Later the preview gets
validated by the image_preview in lc_dialog but is never
propagated to the layer_pixmap. We work around this by using an
additional flag "layer_pixmap_valid" so that the pixmap gets
updated once the preview scrolls into sight.
We should probably do the same for all drawables (masks,
channels), but it is much more difficult to change one of these
when it's not visible.
*/
if (preview_type == LAYER_PREVIEW &&
! layer_widget->layer_pixmap_valid)
{
layer_widget_preview_redraw (layer_widget, preview_type);
}
gdk_draw_pixmap (widget->window,
widget->style->black_gc,
*pixmap,
sx, sy, dx, dy, w, h);
}
}
}
/* The boundary indicating whether layer or mask is active */
layer_widget_boundary_redraw (layer_widget, preview_type);
break;
default:
break;
}
return FALSE;
}
static void
layer_widget_boundary_redraw (LayerWidget *layer_widget,
gint preview_type)
{
GtkWidget *widget;
GdkGC *gc1;
GdkGC *gc2;
GtkStateType state;
if (preview_type == LAYER_PREVIEW)
widget = layer_widget->layer_preview;
else if (preview_type == MASK_PREVIEW)
widget = layer_widget->mask_preview;
else
return;
state = layer_widget->list_item->state;
if (state == GTK_STATE_SELECTED)
{
if (layer_widget->active_preview == preview_type)
gc1 = layer_widget->layer_preview->style->white_gc;
else
gc1 = layer_widget->layer_preview->style->bg_gc[GTK_STATE_SELECTED];
}
else
{
if (layer_widget->active_preview == preview_type)
gc1 = layer_widget->layer_preview->style->black_gc;
else
gc1 = layer_widget->layer_preview->style->white_gc;
}
gc2 = gc1;
if (preview_type == MASK_PREVIEW)
{
if (layersD->green_gc == NULL)
{
GdkColor green;
green.pixel = get_color (0, 255, 0);
layersD->green_gc = gdk_gc_new (widget->window);
gdk_gc_set_foreground (layersD->green_gc, &green);
}
if (layersD->red_gc == NULL)
{
GdkColor red;
red.pixel = get_color (255, 0, 0);
layersD->red_gc = gdk_gc_new (widget->window);
gdk_gc_set_foreground (layersD->red_gc, &red);
}
if (layer_widget->layer->show_mask)
gc2 = layersD->green_gc;
else if (! layer_widget->layer->apply_mask)
gc2 = layersD->red_gc;
}
gdk_draw_rectangle (widget->window,
gc1, FALSE, 0, 0,
layersD->image_width + 3,
layersD->image_height + 3);
gdk_draw_rectangle (widget->window,
gc2, FALSE, 1, 1,
layersD->image_width + 1,
layersD->image_height + 1);
}
static void
layer_widget_preview_redraw (LayerWidget *layer_widget,
gint preview_type)
{
TempBuf *preview_buf;
GdkPixmap **pixmap;
GtkWidget *widget;
gint offx;
gint offy;
preview_buf = NULL;
pixmap = NULL;
widget = NULL;
switch (preview_type)
{
case LAYER_PREVIEW:
case FS_PREVIEW:
widget = layer_widget->layer_preview;
pixmap = &layer_widget->layer_pixmap;
break;
case MASK_PREVIEW:
widget = layer_widget->mask_preview;
pixmap = &layer_widget->mask_pixmap;
break;
}
/* allocate the layer widget pixmap */
if (! *pixmap)
*pixmap = gdk_pixmap_new (widget->window,
layersD->image_width,
layersD->image_height,
-1);
/* If this is a floating selection preview, draw the preview */
if (preview_type == FS_PREVIEW)
render_fs_preview (widget, *pixmap);
/* otherwise, ask the layer or mask for the preview */
else
{
/* determine width and height */
layer_widget->width =
RINT (layersD->ratio * GIMP_DRAWABLE (layer_widget->layer)->width);
layer_widget->height =
RINT (layersD->ratio * GIMP_DRAWABLE (layer_widget->layer)->height);
if (layer_widget->width < 1)
layer_widget->width = 1;
if (layer_widget->height < 1)
layer_widget->height = 1;
offx = RINT (layersD->ratio *
GIMP_DRAWABLE (layer_widget->layer)->offset_x);
offy = RINT (layersD->ratio *
GIMP_DRAWABLE (layer_widget->layer)->offset_y);
switch (preview_type)
{
case LAYER_PREVIEW:
preview_buf = layer_preview (layer_widget->layer,
layer_widget->width,
layer_widget->height);
layer_widget->layer_pixmap_valid = TRUE;
break;
case MASK_PREVIEW:
preview_buf = layer_mask_preview (layer_widget->layer,
layer_widget->width,
layer_widget->height);
break;
}
preview_buf->x = offx;
preview_buf->y = offy;
render_preview (preview_buf,
layersD->layer_preview,
layersD->image_width,
layersD->image_height,
-1);
gtk_preview_put (GTK_PREVIEW (layersD->layer_preview),
*pixmap, widget->style->black_gc,
0, 0, 0, 0,
layersD->image_width, layersD->image_height);
/* make sure the image has been transfered completely to the pixmap
* before we use it again...
*/
gdk_flush ();
}
lc_dialog_menu_preview_dirty
(GTK_OBJECT (gimp_drawable_gimage (GIMP_DRAWABLE (layer_widget->layer))),
NULL);
}
static void
layer_widget_no_preview_redraw (LayerWidget *layer_widget,
gint preview_type)
{
GdkPixmap *pixmap;
GdkPixmap **pixmap_normal;
GdkPixmap **pixmap_selected;
GdkPixmap **pixmap_insensitive;
GdkColor *color;
GtkWidget *widget;
GtkStateType state;
gchar *bits;
gint width, height;
pixmap_normal = NULL;
pixmap_selected = NULL;
pixmap_insensitive = NULL;
widget = NULL;
bits = NULL;
width = 0;
height = 0;
state = layer_widget->list_item->state;
switch (preview_type)
{
case LAYER_PREVIEW:
widget = layer_widget->layer_preview;
pixmap_normal = &layer_pixmap[NORMAL];
pixmap_selected = &layer_pixmap[SELECTED];
pixmap_insensitive = &layer_pixmap[INSENSITIVE];
bits = (gchar *) layer_bits;
width = layer_width;
height = layer_height;
break;
case MASK_PREVIEW:
widget = layer_widget->mask_preview;
pixmap_normal = &mask_pixmap[NORMAL];
pixmap_selected = &mask_pixmap[SELECTED];
pixmap_insensitive = &mask_pixmap[INSENSITIVE];
bits = (gchar *) mask_bits;
width = mask_width;
height = mask_height;
break;
}
if (GTK_WIDGET_IS_SENSITIVE (layer_widget->list_item))
{
if (state == GTK_STATE_SELECTED)
color = &widget->style->bg[GTK_STATE_SELECTED];
else
color = &widget->style->white;
}
else
color = &widget->style->bg[GTK_STATE_INSENSITIVE];
gdk_window_set_background (widget->window, color);
if (!*pixmap_normal)
{
*pixmap_normal =
gdk_pixmap_create_from_data (widget->window,
bits, width, height, -1,
&widget->style->fg[GTK_STATE_SELECTED],
&widget->style->bg[GTK_STATE_SELECTED]);
*pixmap_selected =
gdk_pixmap_create_from_data (widget->window,
bits, width, height, -1,
&widget->style->fg[GTK_STATE_NORMAL],
&widget->style->white);
*pixmap_insensitive =
gdk_pixmap_create_from_data (widget->window,
bits, width, height, -1,
&widget->style->fg[GTK_STATE_INSENSITIVE],
&widget->style->bg[GTK_STATE_INSENSITIVE]);
}
if (GTK_WIDGET_IS_SENSITIVE (layer_widget->list_item))
{
if (state == GTK_STATE_SELECTED)
pixmap = *pixmap_selected;
else
pixmap = *pixmap_normal;
}
else
pixmap = *pixmap_insensitive;
gdk_draw_pixmap (widget->window,
widget->style->black_gc,
pixmap, 0, 0, 2, 2, width, height);
}
static void
layer_widget_eye_redraw (LayerWidget *layer_widget)
{
GdkPixmap *pixmap;
GdkColor *color;
GtkStateType state;
state = layer_widget->list_item->state;
if (GTK_WIDGET_IS_SENSITIVE (layer_widget->list_item))
{
if (state == GTK_STATE_SELECTED)
color = &layer_widget->eye_widget->style->bg[GTK_STATE_SELECTED];
else
color = &layer_widget->eye_widget->style->white;
}
else
color = &layer_widget->eye_widget->style->bg[GTK_STATE_INSENSITIVE];
gdk_window_set_background (layer_widget->eye_widget->window, color);
if (GIMP_DRAWABLE(layer_widget->layer)->visible)
{
if (!eye_pixmap[NORMAL])
{
eye_pixmap[NORMAL] =
gdk_pixmap_create_from_data (layer_widget->eye_widget->window,
(gchar*) eye_bits,
eye_width, eye_height, -1,
&layer_widget->eye_widget->style->fg[GTK_STATE_NORMAL],
&layer_widget->eye_widget->style->white);
eye_pixmap[SELECTED] =
gdk_pixmap_create_from_data (layer_widget->eye_widget->window,
(gchar*) eye_bits,
eye_width, eye_height, -1,
&layer_widget->eye_widget->style->fg[GTK_STATE_SELECTED],
&layer_widget->eye_widget->style->bg[GTK_STATE_SELECTED]);
eye_pixmap[INSENSITIVE] =
gdk_pixmap_create_from_data (layer_widget->eye_widget->window,
(gchar*) eye_bits,
eye_width, eye_height, -1,
&layer_widget->eye_widget->style->fg[GTK_STATE_INSENSITIVE],
&layer_widget->eye_widget->style->bg[GTK_STATE_INSENSITIVE]);
}
if (GTK_WIDGET_IS_SENSITIVE (layer_widget->list_item))
{
if (state == GTK_STATE_SELECTED)
pixmap = eye_pixmap[SELECTED];
else
pixmap = eye_pixmap[NORMAL];
}
else
pixmap = eye_pixmap[INSENSITIVE];
gdk_draw_pixmap (layer_widget->eye_widget->window,
layer_widget->eye_widget->style->black_gc,
pixmap, 0, 0, 0, 0, eye_width, eye_height);
}
else
{
gdk_window_clear (layer_widget->eye_widget->window);
}
}
static void
layer_widget_linked_redraw (LayerWidget *layer_widget)
{
GdkPixmap *pixmap;
GdkColor *color;
GtkStateType state;
state = layer_widget->list_item->state;
if (GTK_WIDGET_IS_SENSITIVE (layer_widget->list_item))
{
if (state == GTK_STATE_SELECTED)
color = &layer_widget->linked_widget->style->bg[GTK_STATE_SELECTED];
else
color = &layer_widget->linked_widget->style->white;
}
else
color = &layer_widget->linked_widget->style->bg[GTK_STATE_INSENSITIVE];
gdk_window_set_background (layer_widget->linked_widget->window, color);
if (layer_widget->layer->linked)
{
if (!linked_pixmap[NORMAL])
{
linked_pixmap[NORMAL] =
gdk_pixmap_create_from_data (layer_widget->linked_widget->window,
(gchar*) linked_bits, linked_width, linked_height, -1,
&layer_widget->linked_widget->style->fg[GTK_STATE_NORMAL],
&layer_widget->linked_widget->style->white);
linked_pixmap[SELECTED] =
gdk_pixmap_create_from_data (layer_widget->linked_widget->window,
(gchar*) linked_bits, linked_width, linked_height, -1,
&layer_widget->linked_widget->style->fg[GTK_STATE_SELECTED],
&layer_widget->linked_widget->style->bg[GTK_STATE_SELECTED]);
linked_pixmap[INSENSITIVE] =
gdk_pixmap_create_from_data (layer_widget->linked_widget->window,
(gchar*) linked_bits, linked_width, linked_height, -1,
&layer_widget->linked_widget->style->fg[GTK_STATE_INSENSITIVE],
&layer_widget->linked_widget->style->bg[GTK_STATE_INSENSITIVE]);
}
if (GTK_WIDGET_IS_SENSITIVE (layer_widget->list_item))
{
if (state == GTK_STATE_SELECTED)
pixmap = linked_pixmap[SELECTED];
else
pixmap = linked_pixmap[NORMAL];
}
else
pixmap = linked_pixmap[INSENSITIVE];
gdk_draw_pixmap (layer_widget->linked_widget->window,
layer_widget->linked_widget->style->black_gc,
pixmap, 0, 0, 0, 0, linked_width, linked_height);
}
else
{
gdk_window_clear (layer_widget->linked_widget->window);
}
}
static void
layer_widget_clip_redraw (LayerWidget *layer_widget)
{
GdkColor *color;
GtkStateType state;
state = layer_widget->list_item->state;
color = &layer_widget->clip_widget->style->fg[state];
gdk_window_set_background (layer_widget->clip_widget->window, color);
gdk_window_clear (layer_widget->clip_widget->window);
}
static void
layer_widget_exclusive_visible (LayerWidget *layer_widget)
{
GSList *list;
LayerWidget *lw;
gboolean visible = FALSE;
if (!layersD)
return;
/* First determine if _any_ other layer widgets are set to visible */
for (list = layersD->layer_widgets; list; list = g_slist_next (list))
{
lw = (LayerWidget *) list->data;
if (lw != layer_widget)
visible |= GIMP_DRAWABLE (lw->layer)->visible;
}
/* Now, toggle the visibility for all layers except the specified one */
for (list = layersD->layer_widgets; list; list = g_slist_next (list))
{
lw = (LayerWidget *) list->data;
if (lw != layer_widget)
GIMP_DRAWABLE (lw->layer)->visible = !visible;
else
GIMP_DRAWABLE (lw->layer)->visible = TRUE;
layer_widget_eye_redraw (lw);
}
}
static void
layer_widget_layer_flush (GtkWidget *widget,
gpointer data)
{
LayerWidget *layer_widget;
Layer *layer;
const gchar *name;
gchar *label_name;
gboolean update_layer_preview = FALSE;
gboolean update_mask_preview = FALSE;
layer_widget = (LayerWidget *) gtk_object_get_user_data (GTK_OBJECT (widget));
layer = layer_widget->layer;
/* Set sensitivity */
/* to false if there is a floating selection, and this aint it */
if (! layer_is_floating_sel (layer_widget->layer) &&
layersD->floating_sel != NULL)
{
if (GTK_WIDGET_IS_SENSITIVE (layer_widget->list_item))
gtk_widget_set_sensitive (layer_widget->list_item, FALSE);
}
/* to true if there is a floating selection, and this is it */
if (layer_is_floating_sel (layer_widget->layer) &&
layersD->floating_sel != NULL)
{
if (! GTK_WIDGET_IS_SENSITIVE (layer_widget->list_item))
gtk_widget_set_sensitive (layer_widget->list_item, TRUE);
}
/* to true if there is not floating selection */
else if (layersD->floating_sel == NULL)
{
if (! GTK_WIDGET_IS_SENSITIVE (layer_widget->list_item))
gtk_widget_set_sensitive (layer_widget->list_item, TRUE);
}
/* if there is an active channel, unselect layer */
if (layersD->active_channel != NULL)
layers_dialog_unset_layer (layer_widget->layer);
/* otherwise, if this is the active layer, set */
else if (layersD->active_layer == layer_widget->layer)
{
layers_dialog_set_active_layer (layersD->active_layer);
/* set the data widgets to reflect this layer's values
* 1) The opacity slider
* 2) The paint mode menu
* 3) The preserve trans button
*/
gtk_adjustment_set_value (GTK_ADJUSTMENT (layersD->opacity_data),
(gfloat) layer_widget->layer->opacity / 2.55);
gimp_option_menu_set_history (GTK_OPTION_MENU (layersD->mode_option_menu),
(gpointer) layer_widget->layer->mode);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (layersD->preserve_trans),
(layer_widget->layer->preserve_trans) ?
GTK_STATE_ACTIVE : GTK_STATE_NORMAL);
}
if (layer_is_floating_sel (layer_widget->layer))
name = _("Floating Selection");
else
name = layer_get_name (layer_widget->layer);
/* we need to set the name label if necessary */
gtk_label_get (GTK_LABEL (layer_widget->label), &label_name);
if (strcmp (name, label_name))
gtk_label_set_text (GTK_LABEL (layer_widget->label), name);
/* show the layer mask preview if necessary */
if (layer_get_mask (layer_widget->layer) == NULL &&
layer_widget->layer_mask)
{
layer_widget->layer_mask = FALSE;
layers_dialog_remove_layer_mask (layer_widget->layer);
}
else if (layer_get_mask (layer_widget->layer) != NULL &&
!layer_widget->layer_mask)
{
layer_widget->layer_mask = TRUE;
layers_dialog_add_layer_mask (layer_widget->layer);
}
/* Update the previews */
update_layer_preview = (! GIMP_DRAWABLE (layer)->preview_valid);
if (layer_get_mask (layer))
{
update_mask_preview =
(! GIMP_DRAWABLE (layer_get_mask (layer))->preview_valid);
if (layer->apply_mask != layer_widget->apply_mask)
{
layer_widget->apply_mask = layer->apply_mask;
update_mask_preview = TRUE;
}
if (layer->show_mask != layer_widget->show_mask)
{
layer_widget->show_mask = layer->show_mask;
update_mask_preview = TRUE;
}
if (layer->edit_mask != layer_widget->edit_mask)
{
layer_widget->edit_mask = layer->edit_mask;
if (layer->edit_mask == TRUE)
layer_widget->active_preview = MASK_PREVIEW;
else
layer_widget->active_preview = LAYER_PREVIEW;
/* The boundary indicating whether layer or mask is active */
layer_widget_boundary_redraw (layer_widget, LAYER_PREVIEW);
layer_widget_boundary_redraw (layer_widget, MASK_PREVIEW);
}
}
if (update_layer_preview)
gtk_widget_queue_draw (layer_widget->layer_preview);
if (update_mask_preview)
gtk_widget_queue_draw (layer_widget->mask_preview);
}
/********************************/
/* The new layer query dialog */
/********************************/
typedef struct _NewLayerOptions NewLayerOptions;
struct _NewLayerOptions
{
GtkWidget *query_box;
GtkWidget *name_entry;
GtkWidget *size_se;
GimpFillType fill_type;
gint xsize;
gint ysize;
GimpImage *gimage;
};
static GimpFillType fill_type = TRANSPARENT_FILL;
static gchar *layer_name = NULL;
static void
new_layer_query_ok_callback (GtkWidget *widget,
gpointer data)
{
NewLayerOptions *options;
Layer *layer;
GimpImage *gimage;
options = (NewLayerOptions *) data;
if (layer_name)
g_free (layer_name);
layer_name = g_strdup (gtk_entry_get_text (GTK_ENTRY (options->name_entry)));
options->xsize =
RINT (gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (options->size_se), 0));
options->ysize =
RINT (gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (options->size_se), 1));
fill_type = options->fill_type;
if ((gimage = options->gimage))
{
/* Start a group undo */
undo_push_group_start (gimage, LAYER_ADD_UNDO);
layer = layer_new (gimage, options->xsize, options->ysize,
gimp_image_base_type_with_alpha (gimage),
layer_name, OPAQUE_OPACITY, NORMAL_MODE);
if (layer)
{
drawable_fill (GIMP_DRAWABLE (layer), fill_type);
gimp_image_add_layer (gimage, layer, -1);
/* End the group undo */
undo_push_group_end (gimage);
gdisplays_flush ();
}
else
{
g_message ("new_layer_query_ok_callback():\n"
"could not allocate new layer");
}
}
gtk_widget_destroy (options->query_box);
}
static void
layers_dialog_new_layer_query (GimpImage* gimage)
{
NewLayerOptions *options;
GtkWidget *vbox;
GtkWidget *table;
GtkWidget *label;
GtkObject *adjustment;
GtkWidget *spinbutton;
GtkWidget *frame;
/* The new options structure */
options = g_new (NewLayerOptions, 1);
options->fill_type = fill_type;
options->gimage = gimage;
/* The dialog */
options->query_box =
gimp_dialog_new (_("New Layer Options"), "new_layer_options",
gimp_standard_help_func,
"dialogs/layers/new_layer.html",
GTK_WIN_POS_MOUSE,
FALSE, TRUE, FALSE,
_("OK"), new_layer_query_ok_callback,
options, NULL, NULL, TRUE, FALSE,
_("Cancel"), gtk_widget_destroy,
NULL, 1, NULL, FALSE, TRUE,
NULL);
gtk_signal_connect_object (GTK_OBJECT (options->query_box), "destroy",
GTK_SIGNAL_FUNC (g_free),
(GtkObject *) options);
/* The main vbox */
vbox = gtk_vbox_new (FALSE, 2);
gtk_container_set_border_width (GTK_CONTAINER (vbox), 4);
gtk_container_add (GTK_CONTAINER (GTK_DIALOG (options->query_box)->vbox),
vbox);
table = gtk_table_new (3, 2, FALSE);
gtk_table_set_col_spacing (GTK_TABLE (table), 0, 4);
gtk_table_set_row_spacing (GTK_TABLE (table), 0, 4);
gtk_box_pack_start (GTK_BOX (vbox), table, FALSE, FALSE, 0);
/* The name label and entry */
label = gtk_label_new (_("Layer Name:"));
gtk_misc_set_alignment (GTK_MISC (label), 1.0, 0.5);
gtk_table_attach (GTK_TABLE (table), label, 0, 1, 0, 1,
GTK_SHRINK | GTK_FILL, GTK_SHRINK, 0, 1);
gtk_widget_show (label);
options->name_entry = gtk_entry_new ();
gtk_widget_set_usize (options->name_entry, 75, 0);
gtk_table_attach_defaults (GTK_TABLE (table),
options->name_entry, 1, 2, 0, 1);
gtk_entry_set_text (GTK_ENTRY (options->name_entry),
(layer_name ? layer_name : _("New Layer")));
gtk_widget_show (options->name_entry);
/* The size labels */
label = gtk_label_new (_("Layer Width:"));
gtk_misc_set_alignment (GTK_MISC (label), 1.0, 0.5);
gtk_table_attach (GTK_TABLE (table), label, 0, 1, 1, 2,
GTK_SHRINK | GTK_FILL, GTK_SHRINK, 0, 0);
gtk_widget_show (label);
label = gtk_label_new (_("Height:"));
gtk_misc_set_alignment (GTK_MISC (label), 1.0, 0.5);
gtk_table_attach (GTK_TABLE (table), label, 0, 1, 2, 3,
GTK_SHRINK | GTK_FILL, GTK_SHRINK, 0, 0);
gtk_widget_show (label);
/* The size sizeentry */
adjustment = gtk_adjustment_new (1, 1, 1, 1, 10, 1);
spinbutton = gtk_spin_button_new (GTK_ADJUSTMENT (adjustment), 1, 2);
gtk_spin_button_set_shadow_type (GTK_SPIN_BUTTON (spinbutton),
GTK_SHADOW_NONE);
gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (spinbutton), TRUE);
gtk_widget_set_usize (spinbutton, 75, 0);
options->size_se = gimp_size_entry_new (1, gimage->unit, "%a",
TRUE, TRUE, FALSE, 75,
GIMP_SIZE_ENTRY_UPDATE_SIZE);
gimp_size_entry_add_field (GIMP_SIZE_ENTRY (options->size_se),
GTK_SPIN_BUTTON (spinbutton), NULL);
gtk_table_attach_defaults (GTK_TABLE (options->size_se), spinbutton,
1, 2, 0, 1);
gtk_widget_show (spinbutton);
gtk_table_attach (GTK_TABLE (table), options->size_se, 1, 2, 1, 3,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
gtk_widget_show (options->size_se);
gimp_size_entry_set_unit (GIMP_SIZE_ENTRY (options->size_se),
GIMP_UNIT_PIXEL);
gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (options->size_se), 0,
gimage->xresolution, FALSE);
gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (options->size_se), 1,
gimage->yresolution, FALSE);
gimp_size_entry_set_refval_boundaries (GIMP_SIZE_ENTRY (options->size_se), 0,
GIMP_MIN_IMAGE_SIZE,
GIMP_MAX_IMAGE_SIZE);
gimp_size_entry_set_refval_boundaries (GIMP_SIZE_ENTRY (options->size_se), 1,
GIMP_MIN_IMAGE_SIZE,
GIMP_MAX_IMAGE_SIZE);
gimp_size_entry_set_size (GIMP_SIZE_ENTRY (options->size_se), 0,
0, gimage->width);
gimp_size_entry_set_size (GIMP_SIZE_ENTRY (options->size_se), 1,
0, gimage->height);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (options->size_se), 0,
gimage->width);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (options->size_se), 1,
gimage->height);
gtk_widget_show (table);
/* The radio frame */
frame =
gimp_radio_group_new2 (TRUE, _("Layer Fill Type"),
gimp_radio_button_update,
&options->fill_type, (gpointer) options->fill_type,
_("Foreground"), (gpointer) FOREGROUND_FILL, NULL,
_("Background"), (gpointer) BACKGROUND_FILL, NULL,
_("White"), (gpointer) WHITE_FILL, NULL,
_("Transparent"), (gpointer) TRANSPARENT_FILL, NULL,
NULL);
gtk_box_pack_start (GTK_BOX (vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
gtk_widget_show (vbox);
gtk_widget_show (options->query_box);
}
/**************************************/
/* The edit layer attributes dialog */
/**************************************/
typedef struct _EditLayerOptions EditLayerOptions;
struct _EditLayerOptions
{
GtkWidget *query_box;
GtkWidget *name_entry;
GimpLayer *layer;
GimpImage *gimage;
};
static void
edit_layer_query_ok_callback (GtkWidget *widget,
gpointer data)
{
EditLayerOptions *options;
Layer *layer;
options = (EditLayerOptions *) data;
if ((layer = options->layer))
{
/* Set the new layer name */
if (GIMP_DRAWABLE (layer)->name && layer_is_floating_sel (layer))
{
/* If the layer is a floating selection, make it a layer */
floating_sel_to_layer (layer);
}
else
{
/* We're doing a plain rename */
undo_push_layer_rename (options->gimage, layer);
}
layer_set_name (layer,
gtk_entry_get_text (GTK_ENTRY (options->name_entry)));
}
gdisplays_flush ();
gtk_widget_destroy (options->query_box);
}
static void
layers_dialog_edit_layer_query (LayerWidget *layer_widget)
{
EditLayerOptions *options;
GtkWidget *vbox;
GtkWidget *hbox;
GtkWidget *label;
/* The new options structure */
options = g_new (EditLayerOptions, 1);
options->layer = layer_widget->layer;
options->gimage = layer_widget->gimage;
/* The dialog */
options->query_box =
gimp_dialog_new (_("Edit Layer Attributes"), "edit_layer_attributes",
gimp_standard_help_func,
"dialogs/layers/edit_layer_attributes.html",
GTK_WIN_POS_MOUSE,
FALSE, TRUE, FALSE,
_("OK"), edit_layer_query_ok_callback,
options, NULL, NULL, TRUE, FALSE,
_("Cancel"), gtk_widget_destroy,
NULL, 1, NULL, FALSE, TRUE,
NULL);
gtk_signal_connect_object (GTK_OBJECT (options->query_box), "destroy",
GTK_SIGNAL_FUNC (g_free),
(GtkObject *) options);
/* The main vbox */
vbox = gtk_vbox_new (FALSE, 2);
gtk_container_set_border_width (GTK_CONTAINER (vbox), 4);
gtk_container_add (GTK_CONTAINER (GTK_DIALOG (options->query_box)->vbox),
vbox);
/* The name hbox, label and entry */
hbox = gtk_hbox_new (FALSE, 4);
gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
label = gtk_label_new (_("Layer name:"));
gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
gtk_widget_show (label);
options->name_entry = gtk_entry_new ();
gtk_box_pack_start (GTK_BOX (hbox), options->name_entry, TRUE, TRUE, 0);
gtk_entry_set_text (GTK_ENTRY (options->name_entry),
((layer_is_floating_sel (layer_widget->layer) ?
_("Floating Selection") :
layer_get_name (layer_widget->layer))));
gtk_signal_connect (GTK_OBJECT (options->name_entry), "activate",
edit_layer_query_ok_callback,
options);
gtk_widget_show (options->name_entry);
gtk_widget_show (hbox);
gtk_widget_show (vbox);
gtk_widget_show (options->query_box);
}
/*******************************/
/* The add mask query dialog */
/*******************************/
typedef struct _AddMaskOptions AddMaskOptions;
struct _AddMaskOptions
{
GtkWidget *query_box;
Layer *layer;
AddMaskType add_mask_type;
};
static void
add_mask_query_ok_callback (GtkWidget *widget,
gpointer data)
{
AddMaskOptions *options;
GimpImage *gimage;
LayerMask *mask;
Layer *layer;
options = (AddMaskOptions *) data;
if ((layer = (options->layer)) &&
(gimage = GIMP_DRAWABLE (layer)->gimage))
{
mask = layer_create_mask (layer, options->add_mask_type);
gimp_image_add_layer_mask (gimage, layer, mask);
gdisplays_flush ();
}
gtk_widget_destroy (options->query_box);
}
static void
layers_dialog_add_mask_query (Layer *layer)
{
AddMaskOptions *options;
GtkWidget *frame;
/* The new options structure */
options = g_new (AddMaskOptions, 1);
options->layer = layer;
options->add_mask_type = ADD_WHITE_MASK;
/* The dialog */
options->query_box =
gimp_dialog_new (_("Add Mask Options"), "add_mask_options",
gimp_standard_help_func,
"dialogs/layers/add_layer_mask.html",
GTK_WIN_POS_MOUSE,
FALSE, TRUE, FALSE,
_("OK"), add_mask_query_ok_callback,
options, NULL, NULL, TRUE, FALSE,
_("Cancel"), gtk_widget_destroy,
NULL, 1, NULL, FALSE, TRUE,
NULL);
gtk_signal_connect_object (GTK_OBJECT (options->query_box), "destroy",
GTK_SIGNAL_FUNC (g_free),
(GtkObject *) options);
/* The radio frame and box */
frame = gimp_radio_group_new2 (TRUE, _("Initialize Layer Mask to:"),
gimp_radio_button_update,
&options->add_mask_type,
(gpointer) options->add_mask_type,
_("White (Full Opacity)"),
(gpointer) ADD_WHITE_MASK, NULL,
_("Black (Full Transparency)"),
(gpointer) ADD_BLACK_MASK, NULL,
_("Layer's Alpha Channel"),
(gpointer) ADD_ALPHA_MASK, NULL,
NULL);
gtk_container_set_border_width (GTK_CONTAINER (frame), 6);
gtk_container_add (GTK_CONTAINER (GTK_DIALOG (options->query_box)->vbox),
frame);
gtk_widget_show (frame);
gtk_widget_show (options->query_box);
}
/****************************/
/* The scale layer dialog */
/****************************/
typedef struct _ScaleLayerOptions ScaleLayerOptions;
struct _ScaleLayerOptions
{
Layer *layer;
Resize *resize;
};
static void
scale_layer_query_ok_callback (GtkWidget *widget,
gpointer data)
{
ScaleLayerOptions *options;
GimpImage *gimage;
Layer *layer;
options = (ScaleLayerOptions *) data;
if (options->resize->width > 0 && options->resize->height > 0 &&
(layer = (options->layer)))
{
gtk_widget_set_sensitive (options->resize->resize_shell, FALSE);
if ((gimage = GIMP_DRAWABLE (layer)->gimage) != NULL)
{
undo_push_group_start (gimage, LAYER_SCALE_UNDO);
if (layer_is_floating_sel (layer))
floating_sel_relax (layer, TRUE);
layer_scale (layer,
options->resize->width, options->resize->height, TRUE);
if (layer_is_floating_sel (layer))
floating_sel_rigor (layer, TRUE);
undo_push_group_end (gimage);
gdisplays_flush ();
}
gtk_widget_destroy (options->resize->resize_shell);
}
else
{
g_message (_("Invalid width or height.\n"
"Both must be positive."));
}
}
static void
layers_dialog_scale_layer_query (GimpImage *gimage,
Layer *layer)
{
ScaleLayerOptions *options;
/* the new options structure */
options = g_new (ScaleLayerOptions, 1);
options->layer = layer;
options->resize = resize_widget_new (ScaleWidget,
ResizeLayer,
GTK_OBJECT (layer),
"removed",
drawable_width (GIMP_DRAWABLE (layer)),
drawable_height (GIMP_DRAWABLE (layer)),
gimage->xresolution,
gimage->yresolution,
gimage->unit,
TRUE,
scale_layer_query_ok_callback,
NULL,
options);
gtk_signal_connect_object (GTK_OBJECT (options->resize->resize_shell),
"destroy",
GTK_SIGNAL_FUNC (g_free),
(GtkObject *) options);
gtk_widget_show (options->resize->resize_shell);
}
/*****************************/
/* The resize layer dialog */
/*****************************/
typedef struct _ResizeLayerOptions ResizeLayerOptions;
struct _ResizeLayerOptions
{
Layer *layer;
Resize *resize;
};
static void
resize_layer_query_ok_callback (GtkWidget *widget,
gpointer data)
{
ResizeLayerOptions *options;
GimpImage *gimage;
Layer *layer;
options = (ResizeLayerOptions *) data;
if (options->resize->width > 0 && options->resize->height > 0 &&
(layer = (options->layer)))
{
gtk_widget_set_sensitive (options->resize->resize_shell, FALSE);
if ((gimage = GIMP_DRAWABLE (layer)->gimage) != NULL)
{
undo_push_group_start (gimage, LAYER_RESIZE_UNDO);
if (layer_is_floating_sel (layer))
floating_sel_relax (layer, TRUE);
layer_resize (layer,
options->resize->width, options->resize->height,
options->resize->offset_x, options->resize->offset_y);
if (layer_is_floating_sel (layer))
floating_sel_rigor (layer, TRUE);
undo_push_group_end (gimage);
gdisplays_flush ();
}
gtk_widget_destroy (options->resize->resize_shell);
}
else
{
g_message (_("Invalid width or height.\n"
"Both must be positive."));
}
}
static void
layers_dialog_resize_layer_query (GimpImage *gimage,
Layer *layer)
{
ResizeLayerOptions *options;
/* the new options structure */
options = g_new (ResizeLayerOptions, 1);
options->layer = layer;
options->resize = resize_widget_new (ResizeWidget,
ResizeLayer,
GTK_OBJECT (layer),
"removed",
drawable_width (GIMP_DRAWABLE (layer)),
drawable_height (GIMP_DRAWABLE (layer)),
gimage->xresolution,
gimage->yresolution,
gimage->unit,
TRUE,
resize_layer_query_ok_callback,
NULL,
options);
gtk_signal_connect_object (GTK_OBJECT (options->resize->resize_shell),
"destroy",
GTK_SIGNAL_FUNC (g_free),
(GtkObject *) options);
gtk_widget_show (options->resize->resize_shell);
}
/****************************/
/* The layer merge dialog */
/****************************/
typedef struct _LayerMergeOptions LayerMergeOptions;
struct _LayerMergeOptions
{
GtkWidget *query_box;
GimpImage *gimage;
gboolean merge_visible;
MergeType merge_type;
};
static void
layer_merge_query_ok_callback (GtkWidget *widget,
gpointer data)
{
LayerMergeOptions *options;
GimpImage *gimage;
options = (LayerMergeOptions *) data;
if (! (gimage = options->gimage))
return;
if (options->merge_visible)
gimp_image_merge_visible_layers (gimage, options->merge_type);
gdisplays_flush ();
gtk_widget_destroy (options->query_box);
}
void
layers_dialog_layer_merge_query (GimpImage *gimage,
/* if FALSE, anchor active layer */
gboolean merge_visible)
{
LayerMergeOptions *options;
GtkWidget *vbox;
GtkWidget *frame;
/* The new options structure */
options = g_new (LayerMergeOptions, 1);
options->gimage = gimage;
options->merge_visible = merge_visible;
options->merge_type = EXPAND_AS_NECESSARY;
/* The dialog */
options->query_box =
gimp_dialog_new (_("Layer Merge Options"), "layer_merge_options",
gimp_standard_help_func,
"dialogs/layers/merge_visible_layers.html",
GTK_WIN_POS_MOUSE,
FALSE, TRUE, FALSE,
_("OK"), layer_merge_query_ok_callback,
options, NULL, NULL, TRUE, FALSE,
_("Cancel"), gtk_widget_destroy,
NULL, 1, NULL, FALSE, TRUE,
NULL);
gtk_signal_connect_object (GTK_OBJECT (options->query_box), "destroy",
GTK_SIGNAL_FUNC (g_free),
(GtkObject *) options);
/* The main vbox */
vbox = gtk_vbox_new (FALSE, 2);
gtk_container_set_border_width (GTK_CONTAINER (vbox), 4);
gtk_container_add (GTK_CONTAINER (GTK_DIALOG (options->query_box)->vbox),
vbox);
frame = gimp_radio_group_new2 (TRUE,
merge_visible ?
_("Final, Merged Layer should be:") :
_("Final, Anchored Layer should be:"),
gimp_radio_button_update,
&options->merge_type,
(gpointer) options->merge_type,
_("Expanded as necessary"),
(gpointer) EXPAND_AS_NECESSARY, NULL,
_("Clipped to image"),
(gpointer) CLIP_TO_IMAGE, NULL,
_("Clipped to bottom layer"),
(gpointer) CLIP_TO_BOTTOM_LAYER, NULL,
NULL);
gtk_box_pack_start (GTK_BOX (vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
gtk_widget_show (vbox);
gtk_widget_show (options->query_box);
}
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