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gimp/app/widgets/gimpcursor.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 "widgets-types.h"
#include "gimpcursor.h"
#include "cursors/gimp-tool-cursors.h"
/* standard gimp cursors */
#include "cursors/xbm/cursor-none.xbm"
#include "cursors/xbm/cursor-mouse.xbm"
#include "cursors/xbm/cursor-mouse-mask.xbm"
#include "cursors/xbm/cursor-crosshair.xbm"
#include "cursors/xbm/cursor-crosshair-mask.xbm"
#include "cursors/xbm/cursor-crosshair-small.xbm"
#include "cursors/xbm/cursor-crosshair-small-mask.xbm"
#include "cursors/xbm/cursor-bad.xbm"
#include "cursors/xbm/cursor-bad-mask.xbm"
#include "cursors/xbm/cursor-zoom.xbm"
#include "cursors/xbm/cursor-zoom-mask.xbm"
#include "cursors/xbm/cursor-color-picker.xbm"
#include "cursors/xbm/cursor-color-picker-mask.xbm"
/* tool cursors */
#include "cursors/xbm/tool-rect-select.xbm"
#include "cursors/xbm/tool-rect-select-mask.xbm"
#include "cursors/xbm/tool-ellipse-select.xbm"
#include "cursors/xbm/tool-ellipse-select-mask.xbm"
#include "cursors/xbm/tool-free-select.xbm"
#include "cursors/xbm/tool-free-select-mask.xbm"
#include "cursors/xbm/tool-fuzzy-select.xbm"
#include "cursors/xbm/tool-fuzzy-select-mask.xbm"
#include "cursors/xbm/tool-paths.xbm"
#include "cursors/xbm/tool-paths-mask.xbm"
#include "cursors/xbm/tool-iscissors.xbm"
#include "cursors/xbm/tool-iscissors-mask.xbm"
#include "cursors/xbm/tool-move.xbm"
#include "cursors/xbm/tool-move-mask.xbm"
#include "cursors/xbm/tool-zoom.xbm"
#include "cursors/xbm/tool-zoom-mask.xbm"
#include "cursors/xbm/tool-crop.xbm"
#include "cursors/xbm/tool-crop-mask.xbm"
#include "cursors/xbm/tool-resize.xbm"
#include "cursors/xbm/tool-resize-mask.xbm"
#include "cursors/xbm/tool-rotate.xbm"
#include "cursors/xbm/tool-rotate-mask.xbm"
#include "cursors/xbm/tool-shear.xbm"
#include "cursors/xbm/tool-shear-mask.xbm"
#include "cursors/xbm/tool-perspective.xbm"
#include "cursors/xbm/tool-perspective-mask.xbm"
#include "cursors/xbm/tool-flip-horizontal.xbm"
#include "cursors/xbm/tool-flip-horizontal-mask.xbm"
#include "cursors/xbm/tool-flip-vertical.xbm"
#include "cursors/xbm/tool-flip-vertical-mask.xbm"
#include "cursors/xbm/tool-text.xbm"
#include "cursors/xbm/tool-text-mask.xbm"
#include "cursors/xbm/tool-color-picker.xbm"
#include "cursors/xbm/tool-color-picker-mask.xbm"
#include "cursors/xbm/tool-bucket-fill.xbm"
#include "cursors/xbm/tool-bucket-fill-mask.xbm"
#include "cursors/xbm/tool-blend.xbm"
#include "cursors/xbm/tool-blend-mask.xbm"
#include "cursors/xbm/tool-pencil.xbm"
#include "cursors/xbm/tool-pencil-mask.xbm"
#include "cursors/xbm/tool-paintbrush.xbm"
#include "cursors/xbm/tool-paintbrush-mask.xbm"
#include "cursors/xbm/tool-eraser.xbm"
#include "cursors/xbm/tool-eraser-mask.xbm"
#include "cursors/xbm/tool-airbrush.xbm"
#include "cursors/xbm/tool-airbrush-mask.xbm"
#include "cursors/xbm/tool-clone.xbm"
#include "cursors/xbm/tool-clone-mask.xbm"
#include "cursors/xbm/tool-blur.xbm"
#include "cursors/xbm/tool-blur-mask.xbm"
#include "cursors/xbm/tool-ink.xbm"
#include "cursors/xbm/tool-ink-mask.xbm"
#include "cursors/xbm/tool-dodge.xbm"
#include "cursors/xbm/tool-dodge-mask.xbm"
#include "cursors/xbm/tool-burn.xbm"
#include "cursors/xbm/tool-burn-mask.xbm"
#include "cursors/xbm/tool-smudge.xbm"
#include "cursors/xbm/tool-smudge-mask.xbm"
#include "cursors/xbm/tool-measure.xbm"
#include "cursors/xbm/tool-measure-mask.xbm"
#include "cursors/xbm/tool-hand.xbm"
#include "cursors/xbm/tool-hand-mask.xbm"
/* cursor modifiers */
#include "cursors/xbm/modifier-plus.xbm"
#include "cursors/xbm/modifier-plus-mask.xbm"
#include "cursors/xbm/modifier-minus.xbm"
#include "cursors/xbm/modifier-minus-mask.xbm"
#include "cursors/xbm/modifier-intersect.xbm"
#include "cursors/xbm/modifier-intersect-mask.xbm"
#include "cursors/xbm/modifier-move.xbm"
#include "cursors/xbm/modifier-move-mask.xbm"
#include "cursors/xbm/modifier-resize.xbm"
#include "cursors/xbm/modifier-resize-mask.xbm"
#include "cursors/xbm/modifier-control.xbm"
#include "cursors/xbm/modifier-control-mask.xbm"
#include "cursors/xbm/modifier-anchor.xbm"
#include "cursors/xbm/modifier-anchor-mask.xbm"
#include "cursors/xbm/modifier-foreground.xbm"
#include "cursors/xbm/modifier-foreground-mask.xbm"
#include "cursors/xbm/modifier-background.xbm"
#include "cursors/xbm/modifier-background-mask.xbm"
#include "cursors/xbm/modifier-pattern.xbm"
#include "cursors/xbm/modifier-pattern-mask.xbm"
typedef struct _GimpCursor GimpCursor;
struct _GimpCursor
{
guchar *bits;
guchar *mask_bits;
gint width, height;
gint x_hot, y_hot;
const guint8 *pixbuf_data;
GdkBitmap *bitmap;
GdkBitmap *mask;
GdkPixbuf *pixbuf;
};
static GimpCursor gimp_cursors[] =
{
/* these have to match up with enum GimpCursorType in widgets-enums.h */
{
cursor_none_bits, cursor_none_bits,
cursor_none_width, cursor_none_height,
cursor_none_x_hot, cursor_none_y_hot,
cursor_none, NULL, NULL, NULL
},
{
cursor_mouse_bits, cursor_mouse_mask_bits,
cursor_mouse_width, cursor_mouse_height,
cursor_mouse_x_hot, cursor_mouse_y_hot,
cursor_mouse,
},
{
cursor_crosshair_bits, cursor_crosshair_mask_bits,
cursor_crosshair_width, cursor_crosshair_height,
cursor_crosshair_x_hot, cursor_crosshair_y_hot,
cursor_crosshair, NULL, NULL, NULL
},
{
cursor_crosshair_small_bits, cursor_crosshair_small_mask_bits,
cursor_crosshair_small_width, cursor_crosshair_small_height,
cursor_crosshair_small_x_hot, cursor_crosshair_small_y_hot,
cursor_crosshair_small, NULL, NULL, NULL
},
{
cursor_bad_bits, cursor_bad_mask_bits,
cursor_bad_width, cursor_bad_height,
cursor_bad_x_hot, cursor_bad_y_hot,
cursor_bad, NULL, NULL, NULL
},
{
cursor_zoom_bits, cursor_zoom_mask_bits,
cursor_zoom_width, cursor_zoom_height,
cursor_zoom_x_hot, cursor_zoom_y_hot,
cursor_zoom, NULL, NULL, NULL
},
{
cursor_color_picker_bits, cursor_color_picker_mask_bits,
cursor_color_picker_width, cursor_color_picker_height,
cursor_color_picker_x_hot, cursor_color_picker_y_hot,
cursor_color_picker, NULL, NULL, NULL
}
};
static GimpCursor gimp_tool_cursors[] =
{
/* these have to match up with enum GimpToolCursorType in widgets-enums.h */
{
NULL, NULL,
0, 0,
0, 0,
NULL, NULL, NULL, NULL
},
{
tool_rect_select_bits, tool_rect_select_mask_bits,
tool_rect_select_width, tool_rect_select_height,
0, 0,
tool_rect_select, NULL, NULL, NULL
},
{
tool_ellipse_select_bits, tool_ellipse_select_mask_bits,
tool_ellipse_select_width, tool_ellipse_select_height,
0, 0,
tool_ellipse_select, NULL, NULL, NULL
},
{
tool_free_select_bits, tool_free_select_mask_bits,
tool_free_select_width, tool_free_select_height,
0, 0,
tool_free_select, NULL, NULL, NULL
},
{
tool_fuzzy_select_bits, tool_fuzzy_select_mask_bits,
tool_fuzzy_select_width, tool_fuzzy_select_height,
0, 0,
tool_fuzzy_select, NULL, NULL, NULL
},
{
tool_paths_bits, tool_paths_mask_bits,
tool_paths_width, tool_paths_height,
0, 0,
tool_paths, NULL, NULL, NULL
},
{
tool_iscissors_bits, tool_iscissors_mask_bits,
tool_iscissors_width, tool_iscissors_height,
0, 0,
tool_iscissors, NULL, NULL, NULL
},
{
tool_move_bits, tool_move_mask_bits,
tool_move_width, tool_move_height,
0, 0,
tool_move, NULL, NULL, NULL
},
{
tool_zoom_bits, tool_zoom_mask_bits,
tool_zoom_width, tool_zoom_height,
0, 0,
tool_zoom, NULL, NULL, NULL
},
{
tool_crop_bits, tool_crop_mask_bits,
tool_crop_width, tool_crop_height,
0, 0,
tool_crop, NULL, NULL, NULL
},
{
tool_resize_bits, tool_resize_mask_bits,
tool_resize_width, tool_resize_height,
0, 0,
tool_resize, NULL, NULL, NULL
},
{
tool_rotate_bits, tool_rotate_mask_bits,
tool_rotate_width, tool_rotate_height,
0, 0,
tool_rotate, NULL, NULL, NULL
},
{
tool_shear_bits, tool_shear_mask_bits,
tool_shear_width, tool_shear_height,
0, 0,
tool_shear, NULL, NULL, NULL
},
{
tool_perspective_bits, tool_perspective_mask_bits,
tool_perspective_width, tool_perspective_height,
0, 0,
tool_perspective, NULL, NULL, NULL
},
{
tool_flip_horizontal_bits, tool_flip_horizontal_mask_bits,
tool_flip_horizontal_width, tool_flip_horizontal_height,
0, 0,
tool_flip_horizontal, NULL, NULL, NULL
},
{
tool_flip_vertical_bits, tool_flip_vertical_mask_bits,
tool_flip_vertical_width, tool_flip_vertical_height,
0, 0,
tool_flip_vertical, NULL, NULL, NULL
},
{
tool_text_bits, tool_text_mask_bits,
tool_text_width, tool_text_height,
0, 0,
tool_text, NULL, NULL, NULL
},
{
tool_color_picker_bits, tool_color_picker_mask_bits,
tool_color_picker_width, tool_color_picker_height,
0, 0,
tool_color_picker, NULL, NULL, NULL
},
{
tool_bucket_fill_bits, tool_bucket_fill_mask_bits,
tool_bucket_fill_width, tool_bucket_fill_height,
0, 0,
tool_bucket_fill, NULL, NULL, NULL
},
{
tool_blend_bits, tool_blend_mask_bits,
tool_blend_width, tool_blend_height,
0, 0,
tool_blend, NULL, NULL, NULL
},
{
tool_pencil_bits, tool_pencil_mask_bits,
tool_pencil_width, tool_pencil_height,
0, 0,
tool_pencil, NULL, NULL, NULL
},
{
tool_paintbrush_bits, tool_paintbrush_mask_bits,
tool_paintbrush_width, tool_paintbrush_height,
0, 0,
tool_paintbrush, NULL, NULL, NULL
},
{
tool_airbrush_bits, tool_airbrush_mask_bits,
tool_airbrush_width, tool_airbrush_height,
0, 0,
tool_airbrush, NULL, NULL, NULL
},
{
tool_ink_bits, tool_ink_mask_bits,
tool_ink_width, tool_ink_height,
0, 0,
tool_ink, NULL, NULL, NULL
},
{
tool_clone_bits, tool_clone_mask_bits,
tool_clone_width, tool_clone_height,
0, 0,
tool_clone, NULL, NULL, NULL
},
{
tool_eraser_bits, tool_eraser_mask_bits,
tool_eraser_width, tool_eraser_height,
0, 0,
tool_eraser, NULL, NULL, NULL
},
{
tool_smudge_bits, tool_smudge_mask_bits,
tool_smudge_width, tool_smudge_height,
0, 0,
tool_smudge, NULL, NULL, NULL
},
{
tool_blur_bits, tool_blur_mask_bits,
tool_blur_width, tool_blur_height,
0, 0,
tool_blur, NULL, NULL, NULL
},
{
tool_dodge_bits, tool_dodge_mask_bits,
tool_dodge_width, tool_dodge_height,
0, 0,
tool_dodge, NULL, NULL, NULL
},
{
tool_burn_bits, tool_burn_mask_bits,
tool_burn_width, tool_burn_height,
0, 0,
tool_burn, NULL, NULL, NULL
},
{
tool_measure_bits, tool_measure_mask_bits,
tool_measure_width, tool_measure_height,
0, 0,
tool_measure, NULL, NULL, NULL
},
{
tool_hand_bits, tool_hand_mask_bits,
tool_hand_width, tool_hand_height,
0, 0,
tool_hand, NULL, NULL, NULL
}
};
static GimpCursor gimp_cursor_modifiers[] =
{
/* these have to match up with enum GimpCursorModifier in widgets-enums.h */
{
NULL, NULL,
0, 0,
0, 0,
NULL, NULL, NULL, NULL
},
{
modifier_plus_bits, modifier_plus_mask_bits,
modifier_plus_width, modifier_plus_height,
0, 0,
modifier_plus, NULL, NULL, NULL
},
{
modifier_minus_bits, modifier_minus_mask_bits,
modifier_minus_width, modifier_minus_height,
0, 0,
modifier_minus, NULL, NULL, NULL
},
{
modifier_intersect_bits, modifier_intersect_mask_bits,
modifier_intersect_width, modifier_intersect_height,
0, 0,
modifier_intersect, NULL, NULL, NULL
},
{
modifier_move_bits, modifier_move_mask_bits,
modifier_move_width, modifier_move_height,
0, 0,
modifier_move, NULL, NULL, NULL
},
{
modifier_resize_bits, modifier_resize_mask_bits,
modifier_resize_width, modifier_resize_height,
0, 0,
modifier_resize, NULL, NULL, NULL
},
{
modifier_control_bits, modifier_control_mask_bits,
modifier_control_width, modifier_control_height,
0, 0,
modifier_control, NULL, NULL, NULL
},
{
modifier_anchor_bits, modifier_anchor_mask_bits,
modifier_anchor_width, modifier_anchor_height,
0, 0,
modifier_anchor, NULL, NULL, NULL
},
{
modifier_foreground_bits, modifier_foreground_mask_bits,
modifier_foreground_width, modifier_foreground_height,
0, 0,
modifier_foreground, NULL, NULL, NULL
},
{
modifier_background_bits, modifier_background_mask_bits,
modifier_background_width, modifier_background_height,
0, 0,
modifier_background, NULL, NULL, NULL
},
{
modifier_pattern_bits, modifier_pattern_mask_bits,
modifier_pattern_width, modifier_pattern_height,
0, 0,
modifier_pattern, NULL, NULL, NULL
}
};
static GdkBitmap *
get_cursor_bitmap (GimpCursor *cursor)
{
if (! cursor->bitmap)
cursor->bitmap = gdk_bitmap_create_from_data (NULL, cursor->bits,
cursor->width,
cursor->height);
g_return_val_if_fail (cursor->bitmap != NULL, NULL);
return cursor->bitmap;
}
static GdkBitmap *
get_cursor_mask (GimpCursor *cursor)
{
if (! cursor->mask)
cursor->mask = gdk_bitmap_create_from_data (NULL, cursor->mask_bits,
cursor->width,
cursor->height);
g_return_val_if_fail (cursor->mask != NULL, NULL);
return cursor->mask;
}
static const GdkPixbuf *
get_cursor_pixbuf (GimpCursor *cursor)
{
if (! cursor->pixbuf)
cursor->pixbuf = gdk_pixbuf_new_from_inline (-1, cursor->pixbuf_data,
FALSE, NULL);
g_return_val_if_fail (cursor->pixbuf != NULL, NULL);
return cursor->pixbuf;
}
GdkCursor *
gimp_cursor_new (GdkDisplay *display,
GimpCursorFormat cursor_format,
GimpCursorType cursor_type,
GimpToolCursorType tool_cursor,
GimpCursorModifier modifier)
{
GdkCursor *cursor;
gint width;
gint height;
GimpCursor *bmcursor = NULL;
GimpCursor *bmmodifier = NULL;
GimpCursor *bmtool = NULL;
g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
g_return_val_if_fail (cursor_type < GIMP_CURSOR_LAST, NULL);
if (cursor_type <= GDK_LAST_CURSOR)
return gdk_cursor_new_for_display (display, cursor_type);
g_return_val_if_fail (cursor_type >= GIMP_CURSOR_NONE, NULL);
/* allow the small tool cursor only with the standard mouse,
* the small crosshair and the bad cursor
*/
if (cursor_type != GIMP_CURSOR_MOUSE &&
cursor_type != GIMP_CURSOR_CROSSHAIR_SMALL &&
cursor_type != GIMP_CURSOR_BAD)
{
tool_cursor = GIMP_TOOL_CURSOR_NONE;
}
/* don't allow anything with the empty cursor
*/
if (cursor_type == GIMP_CURSOR_NONE)
{
tool_cursor = GIMP_TOOL_CURSOR_NONE;
modifier = GIMP_CURSOR_MODIFIER_NONE;
}
/* prepare the main cursor */
cursor_type -= GIMP_CURSOR_NONE;
bmcursor = &gimp_cursors[cursor_type];
/* prepare the tool cursor */
if (tool_cursor >= GIMP_TOOL_CURSOR_LAST)
tool_cursor = GIMP_TOOL_CURSOR_NONE;
if (tool_cursor != GIMP_TOOL_CURSOR_NONE)
bmtool = &gimp_tool_cursors[tool_cursor];
/* prepare the cursor modifier */
if (modifier >= GIMP_CURSOR_MODIFIER_LAST)
modifier = GIMP_CURSOR_MODIFIER_NONE;
if (modifier != GIMP_CURSOR_MODIFIER_NONE)
bmmodifier = &gimp_cursor_modifiers[modifier];
if (cursor_format != GIMP_CURSOR_FORMAT_BITMAP &&
gdk_display_supports_cursor_alpha (display) &&
gdk_display_supports_cursor_color (display))
{
GdkPixbuf *pixbuf;
pixbuf = gdk_pixbuf_copy (get_cursor_pixbuf (bmcursor));
width = gdk_pixbuf_get_width (pixbuf);
height = gdk_pixbuf_get_height (pixbuf);
if (bmmodifier)
gdk_pixbuf_composite (get_cursor_pixbuf (bmmodifier), pixbuf,
0, 0, width, height,
0.0, 0.0, 1.0, 1.0,
GDK_INTERP_NEAREST, 200);
if (bmtool)
gdk_pixbuf_composite (get_cursor_pixbuf (bmtool), pixbuf,
0, 0, width, height,
0.0, 0.0, 1.0, 1.0,
GDK_INTERP_NEAREST, 200);
#ifdef __GNUC__
#warning FIXME: remove this hack as soon as we depend on GTK+ 2.4.4
#endif
/* premultiply the cursor pixels manually for GTK+ < 2.4.4 */
if (gtk_check_version (2, 4, 4))
{
guint rowstride;
guchar *pixels, *p;
gint x, y;
rowstride = gdk_pixbuf_get_rowstride (pixbuf);
pixels = gdk_pixbuf_get_pixels (pixbuf);
for (y = 0; y < height; y++)
{
p = pixels + y * rowstride;
for (x = 0; x < width; x++)
{
p[0] = (p[0] * p[3]) >> 8;
p[1] = (p[1] * p[3]) >> 8;
p[2] = (p[2] * p[3]) >> 8;
p += 4;
}
}
}
cursor = gdk_cursor_new_from_pixbuf (display, pixbuf,
bmcursor->x_hot,
bmcursor->y_hot);
g_object_unref (pixbuf);
}
else
{
GdkBitmap *bitmap;
GdkBitmap *mask;
static GdkGC *gc = NULL;
static GdkColor fg, bg;
if (! gc)
{
GdkColor color;
gc = gdk_gc_new (get_cursor_bitmap (bmcursor));
color.pixel = 1;
gdk_gc_set_foreground (gc, &color);
/* should have a way to configure the mouse colors */
gdk_color_parse ("#FFFFFF", &bg);
gdk_color_parse ("#000000", &fg);
}
gdk_drawable_get_size (get_cursor_bitmap (bmcursor), &width, &height);
bitmap = gdk_pixmap_new (NULL, width, height, 1);
mask = gdk_pixmap_new (NULL, width, height, 1);
gdk_draw_drawable (bitmap, gc, get_cursor_bitmap (bmcursor),
0, 0, 0, 0, width, height);
gdk_draw_drawable (mask, gc, get_cursor_mask (bmcursor),
0, 0, 0, 0, width, height);
if (bmmodifier)
{
gdk_gc_set_clip_mask (gc, get_cursor_bitmap (bmmodifier));
gdk_draw_drawable (bitmap, gc, get_cursor_bitmap (bmmodifier),
0, 0, 0, 0, width, height);
gdk_gc_set_clip_mask (gc, get_cursor_mask (bmmodifier));
gdk_draw_drawable (mask, gc, get_cursor_mask (bmmodifier),
0, 0, 0, 0, width, height);
}
if (bmtool)
{
gdk_gc_set_clip_mask (gc, get_cursor_bitmap (bmtool));
gdk_draw_drawable (bitmap, gc, get_cursor_bitmap (bmtool),
0, 0, 0, 0, width, height);
gdk_gc_set_clip_mask (gc, get_cursor_mask (bmtool));
gdk_draw_drawable (mask, gc, get_cursor_mask (bmtool),
0, 0, 0, 0, width, height);
}
if (bmmodifier || bmtool)
gdk_gc_set_clip_mask (gc, NULL);
cursor = gdk_cursor_new_from_pixmap (bitmap, mask,
&fg, &bg,
bmcursor->x_hot,
bmcursor->y_hot);
g_object_unref (bitmap);
g_object_unref (mask);
}
return cursor;
}
void
gimp_cursor_set (GtkWidget *widget,
GimpCursorFormat cursor_format,
GimpCursorType cursor_type,
GimpToolCursorType tool_cursor,
GimpCursorModifier modifier)
{
GdkCursor *cursor;
g_return_if_fail (GTK_IS_WIDGET (widget));
g_return_if_fail (GTK_WIDGET_REALIZED (widget));
cursor = gimp_cursor_new (gtk_widget_get_display (widget),
cursor_format,
cursor_type,
tool_cursor,
modifier);
gdk_window_set_cursor (widget->window, cursor);
gdk_cursor_unref (cursor);
}
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