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gimp/app/tools/gimptexttool.c

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/* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* GimpTextTool
* Copyright (C) 2002-2004 Sven Neumann <sven@gimp.org>
*
* 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 <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <gtk/gtk.h>
#include "libgimpbase/gimpbase.h"
#include "libgimpconfig/gimpconfig.h"
#include "libgimpwidgets/gimpwidgets.h"
#include "tools-types.h"
#include "core/gimp.h"
#include "core/gimpcontext.h"
#include "core/gimpimage.h"
#include "core/gimpimage-undo.h"
#include "core/gimpimage-undo-push.h"
#include "core/gimplayer-floating-sel.h"
#include "core/gimplist.h"
#include "core/gimptoolinfo.h"
#include "core/gimpundo.h"
#include "core/gimpundostack.h"
#include "text/gimptext.h"
#include "text/gimptext-vectors.h"
#include "text/gimptextlayer.h"
#include "text/gimptextundo.h"
#include "widgets/gimpdialogfactory.h"
#include "widgets/gimphelp-ids.h"
#include "widgets/gimptexteditor.h"
#include "widgets/gimpviewabledialog.h"
#include "vectors/gimpvectors-warp.h"
#include "display/gimpdisplay.h"
#include "gimpeditselectiontool.h"
#include "gimptextoptions.h"
#include "gimptexttool.h"
#include "gimptoolcontrol.h"
#include "gimp-intl.h"
#define TEXT_UNDO_TIMEOUT 3
/* local function prototypes */
static GObject * gimp_text_tool_constructor (GType type,
guint n_params,
GObjectConstructParam *params);
static void gimp_text_tool_dispose (GObject *object);
static void gimp_text_tool_finalize (GObject *object);
static void gimp_text_tool_control (GimpTool *tool,
GimpToolAction action,
GimpDisplay *display);
static void gimp_text_tool_button_press (GimpTool *tool,
GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpDisplay *display);
static void gimp_text_tool_cursor_update (GimpTool *tool,
GimpCoords *coords,
GdkModifierType state,
GimpDisplay *display);
static void gimp_text_tool_connect (GimpTextTool *text_tool,
GimpTextLayer *layer,
GimpText *text);
static void gimp_text_tool_layer_notify (GimpTextLayer *layer,
GParamSpec *pspec,
GimpTextTool *text_tool);
static void gimp_text_tool_proxy_notify (GimpText *text,
GParamSpec *pspec,
GimpTextTool *text_tool);
static void gimp_text_tool_text_notify (GimpText *text,
GParamSpec *pspec,
GimpTextTool *text_tool);
static gboolean gimp_text_tool_idle_apply (GimpTextTool *text_tool);
static void gimp_text_tool_apply (GimpTextTool *text_tool);
static void gimp_text_tool_create_vectors (GimpTextTool *text_tool);
static void gimp_text_tool_create_vectors_warped
(GimpTextTool *text_tool);
static void gimp_text_tool_create_layer (GimpTextTool *text_tool,
GimpText *text);
static void gimp_text_tool_editor (GimpTextTool *text_tool);
static void gimp_text_tool_editor_update (GimpTextTool *text_tool);
static void gimp_text_tool_text_changed (GimpTextEditor *editor,
GimpTextTool *text_tool);
static void gimp_text_tool_layer_changed (GimpImage *image,
GimpTextTool *text_tool);
static void gimp_text_tool_set_image (GimpTextTool *text_tool,
GimpImage *image);
static gboolean gimp_text_tool_set_drawable (GimpTextTool *text_tool,
GimpDrawable *drawable,
gboolean confirm);
G_DEFINE_TYPE (GimpTextTool, gimp_text_tool, GIMP_TYPE_TOOL)
#define parent_class gimp_text_tool_parent_class
void
gimp_text_tool_register (GimpToolRegisterCallback callback,
gpointer data)
{
(* callback) (GIMP_TYPE_TEXT_TOOL,
GIMP_TYPE_TEXT_OPTIONS,
gimp_text_options_gui,
GIMP_CONTEXT_FOREGROUND_MASK | GIMP_CONTEXT_FONT_MASK,
"gimp-text-tool",
_("Text"),
_("Add text to the image"),
N_("Te_xt"), "T",
NULL, GIMP_HELP_TOOL_TEXT,
GIMP_STOCK_TOOL_TEXT,
data);
}
static void
gimp_text_tool_class_init (GimpTextToolClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GimpToolClass *tool_class = GIMP_TOOL_CLASS (klass);
object_class->constructor = gimp_text_tool_constructor;
object_class->dispose = gimp_text_tool_dispose;
object_class->finalize = gimp_text_tool_finalize;
tool_class->control = gimp_text_tool_control;
tool_class->button_press = gimp_text_tool_button_press;
tool_class->key_press = gimp_edit_selection_tool_key_press;
tool_class->cursor_update = gimp_text_tool_cursor_update;
}
static void
gimp_text_tool_init (GimpTextTool *text_tool)
{
GimpTool *tool = GIMP_TOOL (text_tool);
text_tool->proxy = NULL;
text_tool->pending = NULL;
text_tool->idle_id = 0;
text_tool->text = NULL;
text_tool->layer = NULL;
text_tool->image = NULL;
gimp_tool_control_set_scroll_lock (tool->control, TRUE);
gimp_tool_control_set_tool_cursor (tool->control,
GIMP_TOOL_CURSOR_TEXT);
gimp_tool_control_set_action_object_1 (tool->control,
"context/context-font-select-set");
}
static GObject *
gimp_text_tool_constructor (GType type,
guint n_params,
GObjectConstructParam *params)
{
GObject *object;
GimpTextTool *text_tool;
GimpTextOptions *options;
object = G_OBJECT_CLASS (parent_class)->constructor (type, n_params, params);
text_tool = GIMP_TEXT_TOOL (object);
options = GIMP_TEXT_OPTIONS (GIMP_TOOL (text_tool)->tool_info->tool_options);
text_tool->proxy = g_object_new (GIMP_TYPE_TEXT, NULL);
gimp_text_options_connect_text (options, text_tool->proxy);
g_signal_connect_object (text_tool->proxy, "notify",
G_CALLBACK (gimp_text_tool_proxy_notify),
text_tool, 0);
return object;
}
static void
gimp_text_tool_dispose (GObject *object)
{
GimpTextTool *text_tool = GIMP_TEXT_TOOL (object);
gimp_text_tool_set_drawable (text_tool, NULL, FALSE);
G_OBJECT_CLASS (parent_class)->dispose (object);
}
static void
gimp_text_tool_finalize (GObject *object)
{
GimpTextTool *text_tool = GIMP_TEXT_TOOL (object);
if (text_tool->proxy)
{
g_object_unref (text_tool->proxy);
text_tool->proxy = NULL;
}
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gimp_text_tool_control (GimpTool *tool,
GimpToolAction action,
GimpDisplay *display)
{
GimpTextTool *text_tool = GIMP_TEXT_TOOL (tool);
switch (action)
{
case GIMP_TOOL_ACTION_PAUSE:
case GIMP_TOOL_ACTION_RESUME:
break;
case GIMP_TOOL_ACTION_HALT:
gimp_text_tool_set_drawable (text_tool, NULL, FALSE);
break;
}
GIMP_TOOL_CLASS (parent_class)->control (tool, action, display);
}
static void
gimp_text_tool_button_press (GimpTool *tool,
GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpDisplay *display)
{
GimpTextTool *text_tool = GIMP_TEXT_TOOL (tool);
GimpText *text = text_tool->text;
GimpDrawable *drawable;
GIMP_TOOL_CLASS (parent_class)->button_press (tool, coords, time, state,
display);
text_tool->x1 = coords->x;
text_tool->y1 = coords->y;
drawable = gimp_image_active_drawable (display->image);
gimp_text_tool_set_drawable (text_tool, drawable, FALSE);
if (GIMP_IS_LAYER (drawable))
{
GimpItem *item = GIMP_ITEM (drawable);
coords->x -= item->offset_x;
coords->y -= item->offset_y;
if (coords->x > 0 && coords->x < item->width &&
coords->y > 0 && coords->y < item->height)
{
/* did the user click on a text layer? */
if (gimp_text_tool_set_drawable (text_tool, drawable, TRUE))
{
/* on second click, open the text editor */
if (text && text_tool->text == text)
gimp_text_tool_editor (text_tool);
return;
}
}
}
/* create a new text layer */
gimp_text_tool_connect (text_tool, NULL, NULL);
gimp_text_tool_editor (text_tool);
}
static void
gimp_text_tool_cursor_update (GimpTool *tool,
GimpCoords *coords,
GdkModifierType state,
GimpDisplay *display)
{
/* FIXME: should do something fancy here... */
GIMP_TOOL_CLASS (parent_class)->cursor_update (tool, coords, state, display);
}
static void
gimp_text_tool_connect (GimpTextTool *text_tool,
GimpTextLayer *layer,
GimpText *text)
{
GimpTool *tool = GIMP_TOOL (text_tool);
g_return_if_fail (text == NULL || (layer != NULL && layer->text == text));
if (! text && text_tool->editor)
gtk_widget_destroy (text_tool->editor);
if (text_tool->text != text)
{
GimpTextOptions *options;
options = GIMP_TEXT_OPTIONS (tool->tool_info->tool_options);
if (text_tool->text)
{
g_signal_handlers_disconnect_by_func (text_tool->text,
gimp_text_tool_text_notify,
text_tool);
if (text_tool->pending)
gimp_text_tool_apply (text_tool);
if (options->to_vectors_button)
{
gtk_widget_set_sensitive (options->to_vectors_button, FALSE);
g_signal_handlers_disconnect_by_func (options->to_vectors_button,
gimp_text_tool_create_vectors,
text_tool);
}
if (options->along_vectors_button)
{
gtk_widget_set_sensitive (options->along_vectors_button,
FALSE);
g_signal_handlers_disconnect_by_func (options->along_vectors_button,
gimp_text_tool_create_vectors_warped,
text_tool);
}
g_object_unref (text_tool->text);
text_tool->text = NULL;
g_object_set (text_tool->proxy, "text", NULL, NULL);
}
gimp_context_define_property (GIMP_CONTEXT (options),
GIMP_CONTEXT_PROP_FOREGROUND,
text != NULL);
if (text)
{
gimp_config_sync (G_OBJECT (text), G_OBJECT (text_tool->proxy), 0);
text_tool->text = g_object_ref (text);
g_signal_connect (text, "notify",
G_CALLBACK (gimp_text_tool_text_notify),
text_tool);
if (options->to_vectors_button)
{
g_signal_connect_swapped (options->to_vectors_button, "clicked",
G_CALLBACK (gimp_text_tool_create_vectors),
text_tool);
gtk_widget_set_sensitive (options->to_vectors_button, TRUE);
}
if (options->along_vectors_button)
{
g_signal_connect_swapped (options->along_vectors_button, "clicked",
G_CALLBACK (gimp_text_tool_create_vectors_warped),
text_tool);
gtk_widget_set_sensitive (options->along_vectors_button, TRUE);
}
if (text_tool->editor)
gimp_text_tool_editor_update (text_tool);
}
}
if (text_tool->layer != layer)
{
if (text_tool->layer)
{
g_signal_handlers_disconnect_by_func (text_tool->layer,
gimp_text_tool_layer_notify,
text_tool);
text_tool->layer = NULL;
}
text_tool->layer = layer;
if (layer)
g_signal_connect_object (text_tool->layer, "notify::modified",
G_CALLBACK (gimp_text_tool_layer_notify),
text_tool, 0);
}
}
static void
gimp_text_tool_layer_notify (GimpTextLayer *layer,
GParamSpec *pspec,
GimpTextTool *text_tool)
{
if (layer->modified)
gimp_text_tool_connect (text_tool, NULL, NULL);
}
static void
gimp_text_tool_proxy_notify (GimpText *text,
GParamSpec *pspec,
GimpTextTool *text_tool)
{
if (! text_tool->text)
return;
if ((pspec->flags & G_PARAM_READWRITE) == G_PARAM_READWRITE)
{
text_tool->pending = g_list_append (text_tool->pending, pspec);
if (text_tool->idle_id)
g_source_remove (text_tool->idle_id);
text_tool->idle_id =
g_idle_add_full (G_PRIORITY_LOW,
(GSourceFunc) gimp_text_tool_idle_apply, text_tool,
NULL);
}
}
static void
gimp_text_tool_text_notify (GimpText *text,
GParamSpec *pspec,
GimpTextTool *text_tool)
{
g_return_if_fail (text == text_tool->text);
if ((pspec->flags & G_PARAM_READWRITE) == G_PARAM_READWRITE)
{
GValue value = { 0, };
g_value_init (&value, pspec->value_type);
g_object_get_property (G_OBJECT (text), pspec->name, &value);
g_signal_handlers_block_by_func (text_tool->proxy,
gimp_text_tool_proxy_notify,
text_tool);
g_object_set_property (G_OBJECT (text_tool->proxy), pspec->name, &value);
g_signal_handlers_unblock_by_func (text_tool->proxy,
gimp_text_tool_proxy_notify,
text_tool);
g_value_unset (&value);
}
if (text_tool->editor && strcmp (pspec->name, "text") == 0)
gimp_text_tool_editor_update (text_tool);
}
static gboolean
gimp_text_tool_idle_apply (GimpTextTool *text_tool)
{
text_tool->idle_id = 0;
gimp_text_tool_apply (text_tool);
return FALSE;
}
static void
gimp_text_tool_apply (GimpTextTool *text_tool)
{
const GParamSpec *pspec = NULL;
GimpImage *image;
GimpTextLayer *layer;
GObject *src;
GObject *dest;
GList *list;
gboolean push_undo = TRUE;
gboolean undo_group = FALSE;
if (text_tool->idle_id)
{
g_source_remove (text_tool->idle_id);
text_tool->idle_id = 0;
}
g_return_if_fail (text_tool->text != NULL);
g_return_if_fail (text_tool->layer != NULL);
layer = text_tool->layer;
image = gimp_item_get_image (GIMP_ITEM (layer));
g_return_if_fail (layer->text == text_tool->text);
/* Walk over the list of changes and figure out if we are changing
* a single property or need to push a full text undo.
*/
for (list = text_tool->pending;
list && list->next && list->next->data == list->data;
list = list->next)
/* do nothing */;
if (g_list_length (list) == 1)
pspec = list->data;
/* If we are changing a single property, we don't need to push
* an undo if all of the following is true:
* - the redo stack is empty
* - the last item on the undo stack is a text undo
* - the last undo changed the same text property on the same layer
* - the last undo happened less than TEXT_UNDO_TIMEOUT seconds ago
*/
if (pspec)
{
GimpUndo *undo = gimp_image_undo_can_compress (image, GIMP_TYPE_TEXT_UNDO,
GIMP_UNDO_TEXT_LAYER);
if (undo && GIMP_ITEM_UNDO (undo)->item == GIMP_ITEM (layer))
{
GimpTextUndo *text_undo = GIMP_TEXT_UNDO (undo);
if (text_undo->pspec == pspec)
{
guint now = time (NULL);
if (now >= undo->time &&
now - undo->time < TEXT_UNDO_TIMEOUT)
{
push_undo = FALSE;
undo->time = now;
gimp_undo_refresh_preview (undo);
}
}
}
}
if (push_undo)
{
if (layer->modified)
{
undo_group = TRUE;
gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_TEXT, NULL);
gimp_image_undo_push_text_layer_modified (image, NULL, layer);
gimp_image_undo_push_drawable_mod (image,
NULL, GIMP_DRAWABLE (layer));
}
gimp_image_undo_push_text_layer (image, NULL, layer, pspec);
}
src = G_OBJECT (text_tool->proxy);
dest = G_OBJECT (text_tool->text);
g_signal_handlers_block_by_func (dest,
gimp_text_tool_text_notify, text_tool);
g_object_freeze_notify (dest);
for (; list; list = list->next)
{
GValue value = { 0, };
/* look ahead and compress changes */
if (list->next && list->next->data == list->data)
continue;
pspec = list->data;
g_value_init (&value, pspec->value_type);
g_object_get_property (src, pspec->name, &value);
g_object_set_property (dest, pspec->name, &value);
g_value_unset (&value);
}
g_list_free (text_tool->pending);
text_tool->pending = NULL;
g_object_thaw_notify (dest);
g_signal_handlers_unblock_by_func (dest,
gimp_text_tool_text_notify, text_tool);
if (push_undo)
{
g_object_set (layer, "modified", FALSE, NULL);
if (undo_group)
gimp_image_undo_group_end (image);
}
gimp_image_flush (image);
}
static void
gimp_text_tool_create_vectors (GimpTextTool *text_tool)
{
GimpVectors *vectors;
if (! text_tool->text || ! text_tool->image)
return;
vectors = gimp_text_vectors_new (text_tool->image, text_tool->text);
if (text_tool->layer)
{
gint x, y;
gimp_item_offsets (GIMP_ITEM (text_tool->layer), &x, &y);
gimp_item_translate (GIMP_ITEM (vectors), x, y, FALSE);
}
gimp_image_add_vectors (text_tool->image, vectors, -1);
gimp_image_flush (text_tool->image);
}
static void
gimp_text_tool_create_vectors_warped (GimpTextTool *text_tool)
{
GimpVectors *vectors0;
GimpVectors *vectors;
GimpText *text = text_tool->text;
gdouble box_height;
if (! text || ! text_tool->image || ! text_tool->layer)
return;
box_height = gimp_item_height (GIMP_ITEM (text_tool->layer));
vectors0 = gimp_image_get_active_vectors (text_tool->image);
if (! vectors0)
return;
vectors = gimp_text_vectors_new (text_tool->image, text_tool->text);
gimp_vectors_warp_vectors (vectors0, vectors, 0.5 * box_height);
gimp_image_add_vectors (text_tool->image, vectors, -1);
gimp_image_set_active_vectors (text_tool->image, vectors);
gimp_item_set_visible (GIMP_ITEM (vectors), TRUE, FALSE);
gimp_image_flush (text_tool->image);
}
static void
gimp_text_tool_create_layer (GimpTextTool *text_tool,
GimpText *text)
{
GimpTool *tool = GIMP_TOOL (text_tool);
GimpImage *image;
GimpLayer *layer;
if (text)
{
text = gimp_config_duplicate (GIMP_CONFIG (text));
}
else
{
gchar *str;
str = gimp_text_editor_get_text (GIMP_TEXT_EDITOR (text_tool->editor));
g_object_set (text_tool->proxy,
"text", str,
NULL);
g_free (str);
text = gimp_config_duplicate (GIMP_CONFIG (text_tool->proxy));
}
image = tool->display->image;
layer = gimp_text_layer_new (image, text);
g_object_unref (text);
if (! layer)
return;
gimp_text_tool_connect (text_tool, GIMP_TEXT_LAYER (layer), text);
gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_TEXT,
_("Add Text Layer"));
if (gimp_image_floating_sel (image))
{
g_signal_handlers_block_by_func (image,
gimp_text_tool_layer_changed,
text_tool);
floating_sel_anchor (gimp_image_floating_sel (image));
g_signal_handlers_unblock_by_func (image,
gimp_text_tool_layer_changed,
text_tool);
}
GIMP_ITEM (layer)->offset_x = text_tool->x1;
GIMP_ITEM (layer)->offset_y = text_tool->y1;
gimp_image_add_layer (image, layer, -1);
gimp_image_undo_group_end (image);
gimp_image_flush (image);
gimp_text_tool_set_drawable (text_tool, GIMP_DRAWABLE (layer), FALSE);
}
static void
gimp_text_tool_editor (GimpTextTool *text_tool)
{
GimpTextOptions *options;
GimpDialogFactory *dialog_factory;
if (text_tool->editor)
{
gtk_window_present (GTK_WINDOW (text_tool->editor));
return;
}
options = GIMP_TEXT_OPTIONS (GIMP_TOOL (text_tool)->tool_info->tool_options);
dialog_factory = gimp_dialog_factory_from_name ("toplevel");
text_tool->editor = gimp_text_options_editor_new (options,
dialog_factory->menu_factory,
_("GIMP Text Editor"));
g_object_add_weak_pointer (G_OBJECT (text_tool->editor),
(gpointer) &text_tool->editor);
gimp_dialog_factory_add_foreign (dialog_factory,
"gimp-text-tool-dialog",
text_tool->editor);
if (text_tool->text)
gimp_text_editor_set_text (GIMP_TEXT_EDITOR (text_tool->editor),
text_tool->text->text, -1);
g_signal_connect_object (text_tool->editor, "text-changed",
G_CALLBACK (gimp_text_tool_text_changed),
text_tool, 0);
gtk_widget_show (text_tool->editor);
}
static void
gimp_text_tool_editor_update (GimpTextTool *text_tool)
{
gchar *str = NULL;
if (! text_tool->editor)
return;
if (text_tool->text)
g_object_get (text_tool->text, "text", &str, NULL);
g_signal_handlers_block_by_func (text_tool->editor,
gimp_text_tool_text_changed, text_tool);
gimp_text_editor_set_text (GIMP_TEXT_EDITOR (text_tool->editor),
str, str ? -1 : 0);
g_signal_handlers_unblock_by_func (text_tool->editor,
gimp_text_tool_text_changed, text_tool);
g_free (str);
}
static void
gimp_text_tool_text_changed (GimpTextEditor *editor,
GimpTextTool *text_tool)
{
if (text_tool->text)
{
gchar *text;
text = gimp_text_editor_get_text (GIMP_TEXT_EDITOR (text_tool->editor));
g_object_set (text_tool->proxy, "text", text, NULL);
g_free (text);
}
else
{
gimp_text_tool_create_layer (text_tool, NULL);
}
}
#define RESPONSE_NEW 1
static void
gimp_text_tool_confirm_response (GtkWidget *widget,
gint response_id,
GimpTextTool *text_tool)
{
GimpTextLayer *layer = text_tool->layer;
gtk_widget_destroy (widget);
if (layer && layer->text)
{
switch (response_id)
{
case RESPONSE_NEW:
gimp_text_tool_create_layer (text_tool, layer->text);
break;
case GTK_RESPONSE_OK:
gimp_text_tool_connect (text_tool, layer, layer->text);
gimp_text_tool_editor (text_tool);
break;
default:
break;
}
}
}
static void
gimp_text_tool_confirm_dialog (GimpTextTool *text_tool)
{
GimpTool *tool = GIMP_TOOL (text_tool);
GtkWidget *dialog;
GtkWidget *vbox;
GtkWidget *label;
g_return_if_fail (text_tool->layer != NULL);
if (text_tool->confirm_dialog)
{
gtk_window_present (GTK_WINDOW (text_tool->confirm_dialog));
return;
}
dialog = gimp_viewable_dialog_new (GIMP_VIEWABLE (text_tool->layer),
_("Confirm Text Editing"),
"gimp-text-tool-confirm",
GIMP_STOCK_TEXT_LAYER,
_("Confirm Text Editing"),
tool->display->shell,
gimp_standard_help_func,
tool->tool_info->help_id,
GTK_STOCK_NEW, RESPONSE_NEW,
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
GTK_STOCK_EDIT, GTK_RESPONSE_OK,
NULL);
gtk_dialog_set_alternative_button_order (GTK_DIALOG (dialog),
RESPONSE_NEW,
GTK_RESPONSE_OK,
GTK_RESPONSE_CANCEL,
-1);
gtk_window_set_resizable (GTK_WINDOW (dialog), FALSE);
g_signal_connect (dialog, "response",
G_CALLBACK (gimp_text_tool_confirm_response),
text_tool);
vbox = gtk_vbox_new (FALSE, 6);
gtk_container_set_border_width (GTK_CONTAINER (vbox), 12);
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dialog)->vbox),
vbox, FALSE, FALSE, 0);
gtk_widget_show (vbox);
label = gtk_label_new (_("The layer you selected is a text layer but "
"it has been modified using other tools. "
"Editing the layer with the text tool will "
"discard these modifications."
"\n\n"
"You can edit the layer or create a new "
"text layer from its text attributes."));
gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
gtk_label_set_line_wrap (GTK_LABEL (label), TRUE);
gtk_box_pack_start (GTK_BOX (vbox), label, FALSE, FALSE, 0);
gtk_widget_show (label);
gtk_widget_show (dialog);
text_tool->confirm_dialog = dialog;
g_signal_connect_swapped (dialog, "destroy",
G_CALLBACK (g_nullify_pointer),
&text_tool->confirm_dialog);
}
static void
gimp_text_tool_layer_changed (GimpImage *image,
GimpTextTool *text_tool)
{
GimpLayer *layer = gimp_image_get_active_layer (image);
gimp_text_tool_set_drawable (text_tool, GIMP_DRAWABLE (layer), FALSE);
}
static void
gimp_text_tool_set_image (GimpTextTool *text_tool,
GimpImage *image)
{
if (text_tool->image == image)
return;
if (text_tool->image)
{
g_signal_handlers_disconnect_by_func (text_tool->image,
gimp_text_tool_layer_changed,
text_tool);
g_object_remove_weak_pointer (G_OBJECT (text_tool->image),
(gpointer) &text_tool->image);
text_tool->image = NULL;
}
if (image)
{
GimpToolOptions *options;
text_tool->image = image;
g_object_add_weak_pointer (G_OBJECT (text_tool->image),
(gpointer) &text_tool->image);
g_signal_connect_object (text_tool->image, "active-layer-changed",
G_CALLBACK (gimp_text_tool_layer_changed),
text_tool, 0);
options = GIMP_TOOL (text_tool)->tool_info->tool_options;
gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (GIMP_TEXT_OPTIONS (options)->size_entry),
0, image->yresolution, FALSE);
}
}
static gboolean
gimp_text_tool_set_drawable (GimpTextTool *text_tool,
GimpDrawable *drawable,
gboolean confirm)
{
GimpImage *image = NULL;
if (text_tool->confirm_dialog)
gtk_widget_destroy (text_tool->confirm_dialog);
if (drawable)
image = gimp_item_get_image (GIMP_ITEM (drawable));
gimp_text_tool_set_image (text_tool, image);
if (GIMP_IS_TEXT_LAYER (drawable) && GIMP_TEXT_LAYER (drawable)->text)
{
GimpTextLayer *layer = GIMP_TEXT_LAYER (drawable);
if (layer == text_tool->layer && layer->text == text_tool->text)
return TRUE;
if (layer->modified)
{
if (confirm)
{
gimp_text_tool_connect (text_tool, layer, NULL);
gimp_text_tool_confirm_dialog (text_tool);
return TRUE;
}
}
else
{
gimp_text_tool_connect (text_tool, layer, layer->text);
return TRUE;
}
}
gimp_text_tool_connect (text_tool, NULL, NULL);
text_tool->layer = NULL;
return FALSE;
}
void
gimp_text_tool_set_layer (GimpTextTool *text_tool,
GimpLayer *layer)
{
g_return_if_fail (GIMP_IS_TEXT_TOOL (text_tool));
g_return_if_fail (layer == NULL || GIMP_IS_LAYER (layer));
if (gimp_text_tool_set_drawable (text_tool, GIMP_DRAWABLE (layer), TRUE))
{
GimpTool *tool = GIMP_TOOL (text_tool);
GimpItem *item = GIMP_ITEM (layer);
GimpContext *context;
GimpDisplay *display;
context = gimp_get_user_context (tool->tool_info->gimp);
display = gimp_context_get_display (context);
if (! display || display->image != item->image)
{
GList *list;
display = NULL;
for (list = GIMP_LIST (tool->tool_info->gimp->displays)->list;
list;
list = g_list_next (list))
{
display = list->data;
if (display->image == item->image)
{
gimp_context_set_display (context, display);
break;
}
display = NULL;
}
}
tool->display = display;
if (tool->display)
{
tool->drawable = GIMP_DRAWABLE (layer);
gimp_text_tool_editor (text_tool);
}
}
}
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