mirror of
https://gitlab.gnome.org/GNOME/gimp
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1e08aa1ef7
1999-08-22 Michael Natterer <mitschel@cs.tu-berlin.de> * app/color_area.[ch] * app/color_panel.[ch] * app/gimpdnd.[ch]: enabled dnd for colors (compatible with the standard gtk/gnome color dnd). The color selection is now invoked on a real click, not on button_down to avoid confusion with dnd. * app/channels_dialog.c * app/disp_callbacks.c * app/interface.c * app/layers_dialog.c: minor dnd updates/fixes. * app/channel.[ch] * app/channel_pvt.h * app/docindex.[ch] * app/docindexif.[ch] * app/drawable.[ch] * app/floating_sel.c * app/gimage.[ch] * app/gimage_mask.c * app/gimpdrawable.[ch] * app/gimpdrawableP.h * app/gimpimage.[ch] * app/gimpimageP.h * app/layer.[ch] * app/layer_pvt.h * app/undo.c * app/xcf.c: wanted to do some s/int/gboolean/ in the layer files where appropriate and found myself spending the whole night doing a big code review for layers/channels/drawables/images: s/int/gboolean/, s/<type>/g<type>/, lots of indentation, removed some old global variables and deprecated functions, #include cleanups, proper prototypes, copyright headers, ...
556 lines
14 KiB
C
556 lines
14 KiB
C
/* The GIMP -- an image manipulation program
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include <stdlib.h>
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#include <string.h>
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#include "appenv.h"
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#include "color_area.h"
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#include "color_notebook.h"
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#include "colormaps.h"
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#include "gimpdnd.h"
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#include "palette.h"
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typedef enum
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{
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FORE_AREA,
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BACK_AREA,
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SWAP_AREA,
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DEF_AREA,
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INVALID_AREA
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} ColorAreaTarget;
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/* local function prototypes */
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static void color_area_drag_begin (GtkWidget *, GdkDragContext *, gpointer);
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static void color_area_drag_end (GtkWidget *, GdkDragContext *, gpointer);
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static void color_area_drop_handle (GtkWidget *widget,
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GdkDragContext *context,
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gint x,
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gint y,
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GtkSelectionData *selection_data,
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guint info,
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guint time,
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gpointer data);
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static void color_area_drag_handle (GtkWidget *widget,
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GdkDragContext *context,
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GtkSelectionData *selection_data,
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guint info,
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guint time,
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gpointer data);
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/* Global variables */
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gint active_color = 0;
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/* Static variables */
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static GdkGC *color_area_gc = NULL;
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static GtkWidget *color_area = NULL;
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static GdkPixmap *color_area_pixmap = NULL;
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static GdkPixmap *default_pixmap = NULL;
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static GdkPixmap *swap_pixmap = NULL;
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static ColorNotebookP color_notebook = NULL;
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static gboolean color_notebook_active = FALSE;
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static gint edit_color;
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static guchar revert_fg_r, revert_fg_g, revert_fg_b;
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static guchar revert_bg_r, revert_bg_g, revert_bg_b;
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/* dnd structures */
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static GtkTargetEntry color_area_target_table[] =
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{
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GIMP_TARGET_COLOR
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};
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static guint n_color_area_targets = (sizeof (color_area_target_table) /
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sizeof (color_area_target_table[0]));
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/* Local functions */
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static ColorAreaTarget
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color_area_target (gint x,
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gint y)
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{
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gint rect_w, rect_h;
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gint width, height;
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gdk_window_get_size (color_area_pixmap, &width, &height);
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rect_w = width * 0.65;
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rect_h = height * 0.65;
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/* foreground active */
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if (x > 0 && x < rect_w &&
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y > 0 && y < rect_h)
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return FORE_AREA;
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else if (x > (width - rect_w) && x < width &&
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y > (height - rect_h) && y < height)
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return BACK_AREA;
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else if (x > 0 && x < (width - rect_w) &&
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y > rect_h && y < height)
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return DEF_AREA;
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else if (x > rect_w && x < width &&
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y > 0 && y < (height - rect_h))
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return SWAP_AREA;
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else
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return -1;
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}
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void
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color_area_draw_rect (GdkDrawable *drawable,
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GdkGC *gc,
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gint x,
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gint y,
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gint width,
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gint height,
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guchar r,
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guchar g,
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guchar b)
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{
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static guchar *color_area_rgb_buf = NULL;
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static gint color_area_rgb_buf_size;
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static gint rowstride;
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gint xx, yy;
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guchar *bp;
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rowstride = 3 * ((width + 3) & -4);
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if (color_area_rgb_buf == NULL ||
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color_area_rgb_buf_size < height * rowstride)
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{
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if (color_area_rgb_buf)
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g_free (color_area_rgb_buf);
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color_area_rgb_buf = g_malloc (rowstride * height);
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}
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bp = color_area_rgb_buf;
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for (xx = 0; xx < width; xx++)
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{
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*bp++ = r;
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*bp++ = g;
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*bp++ = b;
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}
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bp = color_area_rgb_buf;
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for (yy = 1; yy < height; yy++)
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{
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bp += rowstride;
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memcpy (bp, color_area_rgb_buf, rowstride);
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}
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gdk_draw_rgb_image (drawable, gc, x, y, width, height,
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GDK_RGB_DITHER_MAX,
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color_area_rgb_buf,
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rowstride);
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}
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static void
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color_area_draw (void)
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{
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GdkColor *win_bg;
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GdkColor fg, bg, bd;
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gint rect_w, rect_h;
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gint width, height;
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gint def_width, def_height;
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gint swap_width, swap_height;
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guchar r, g, b;
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/* Check we haven't gotten initial expose yet,
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* no point in drawing anything */
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if (!color_area_pixmap || !color_area_gc)
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return;
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gdk_window_get_size (color_area_pixmap, &width, &height);
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win_bg = &(color_area->style->bg[GTK_STATE_NORMAL]);
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fg.pixel = foreground_pixel;
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bg.pixel = background_pixel;
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bd.pixel = g_black_pixel;
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rect_w = width * 0.65;
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rect_h = height * 0.65;
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gdk_gc_set_foreground (color_area_gc, win_bg);
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gdk_draw_rectangle (color_area_pixmap, color_area_gc, 1,
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0, 0, width, height);
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#ifdef OLD_COLOR_AREA
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gdk_gc_set_foreground (color_area_gc, &bg);
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gdk_draw_rectangle (color_area_pixmap, color_area_gc, 1,
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(width - rect_w), (height - rect_h), rect_w, rect_h);
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#else
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palette_get_background (&r, &g, &b);
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color_area_draw_rect (color_area_pixmap, color_area_gc,
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(width - rect_w), (height - rect_h), rect_w, rect_h,
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r, g, b);
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#endif
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if (active_color == FOREGROUND)
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gtk_draw_shadow (color_area->style, color_area_pixmap, GTK_STATE_NORMAL, GTK_SHADOW_OUT,
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(width - rect_w), (height - rect_h), rect_w, rect_h);
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else
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gtk_draw_shadow (color_area->style, color_area_pixmap, GTK_STATE_NORMAL, GTK_SHADOW_IN,
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(width - rect_w), (height - rect_h), rect_w, rect_h);
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#ifdef OLD_COLOR_AREA
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gdk_gc_set_foreground (color_area_gc, &fg);
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gdk_draw_rectangle (color_area_pixmap, color_area_gc, 1,
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0, 0, rect_w, rect_h);
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#else
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palette_get_foreground (&r, &g, &b);
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color_area_draw_rect (color_area_pixmap, color_area_gc,
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0, 0, rect_w, rect_h,
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r, g, b);
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#endif
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if (active_color == FOREGROUND)
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gtk_draw_shadow (color_area->style, color_area_pixmap, GTK_STATE_NORMAL, GTK_SHADOW_IN,
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0, 0, rect_w, rect_h);
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else
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gtk_draw_shadow (color_area->style, color_area_pixmap, GTK_STATE_NORMAL, GTK_SHADOW_OUT,
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0, 0, rect_w, rect_h);
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gdk_window_get_size (default_pixmap, &def_width, &def_height);
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gdk_draw_pixmap (color_area_pixmap, color_area_gc, default_pixmap,
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0, 0, 0, height - def_height, def_width, def_height);
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gdk_window_get_size (swap_pixmap, &swap_width, &swap_height);
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gdk_draw_pixmap (color_area_pixmap, color_area_gc, swap_pixmap,
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0, 0, width - swap_width, 0, swap_width, swap_height);
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gdk_draw_pixmap (color_area->window, color_area_gc, color_area_pixmap,
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0, 0, 0, 0, width, height);
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}
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static void
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color_area_select_callback (gint r,
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gint g,
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gint b,
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ColorNotebookState state,
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void *client_data)
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{
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if (color_notebook)
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{
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switch (state)
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{
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case COLOR_NOTEBOOK_OK:
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color_notebook_hide (color_notebook);
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color_notebook_active = FALSE;
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/* Fallthrough */
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case COLOR_NOTEBOOK_UPDATE:
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if (edit_color == FOREGROUND)
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palette_set_foreground (r, g, b);
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else
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palette_set_background (r, g, b);
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break;
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case COLOR_NOTEBOOK_CANCEL:
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color_notebook_hide (color_notebook);
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color_notebook_active = FALSE;
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palette_set_foreground (revert_fg_r, revert_fg_g, revert_fg_b);
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palette_set_background (revert_bg_r, revert_bg_g, revert_bg_b);
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}
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}
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}
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static void
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color_area_edit (void)
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{
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guchar r, g, b;
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if (!color_notebook_active)
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{
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palette_get_foreground (&revert_fg_r, &revert_fg_g, &revert_fg_b);
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palette_get_background (&revert_bg_r, &revert_bg_g, &revert_bg_b);
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}
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if (active_color == FOREGROUND)
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{
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palette_get_foreground (&r, &g, &b);
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edit_color = FOREGROUND;
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}
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else
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{
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palette_get_background (&r, &g, &b);
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edit_color = BACKGROUND;
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}
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if (! color_notebook)
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{
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color_notebook = color_notebook_new (r, g, b, color_area_select_callback,
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NULL, TRUE);
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color_notebook_active = TRUE;
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}
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else
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{
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if (! color_notebook_active)
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{
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color_notebook_show (color_notebook);
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color_notebook_active = TRUE;
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}
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else
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gdk_window_raise (color_notebook->shell->window);
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color_notebook_set_color (color_notebook, r, g, b, TRUE);
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}
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}
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static gint
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color_area_events (GtkWidget *widget,
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GdkEvent *event)
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{
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GdkEventButton *bevent;
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ColorAreaTarget target;
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static ColorAreaTarget press_target = INVALID_AREA;
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switch (event->type)
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{
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case GDK_CONFIGURE:
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if (color_area_pixmap)
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gdk_pixmap_unref (color_area_pixmap);
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color_area_pixmap = gdk_pixmap_new (widget->window,
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widget->allocation.width,
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widget->allocation.height, -1);
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break;
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case GDK_EXPOSE:
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if (GTK_WIDGET_DRAWABLE (widget))
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{
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if (!color_area_gc)
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color_area_gc = gdk_gc_new (widget->window);
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color_area_draw ();
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}
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break;
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case GDK_BUTTON_PRESS:
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bevent = (GdkEventButton *) event;
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if (bevent->button == 1)
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press_target = color_area_target (bevent->x, bevent->y);
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break;
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case GDK_BUTTON_RELEASE:
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bevent = (GdkEventButton *) event;
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if (bevent->button == 1)
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{
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target = color_area_target (bevent->x, bevent->y);
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if (target == press_target)
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{
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switch (target)
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{
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case FORE_AREA:
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case BACK_AREA:
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if (target == active_color)
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{
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color_area_edit ();
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}
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else
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{
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active_color = target;
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color_area_draw ();
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}
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break;
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case SWAP_AREA:
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palette_swap_colors();
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color_area_draw ();
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break;
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case DEF_AREA:
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palette_set_default_colors();
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color_area_draw ();
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break;
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default:
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break;
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}
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}
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press_target = INVALID_AREA;
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}
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break;
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case GDK_LEAVE_NOTIFY:
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press_target = INVALID_AREA;
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break;
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default:
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break;
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}
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return FALSE;
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}
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GtkWidget *
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color_area_create (gint width,
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gint height,
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GdkPixmap *default_pmap,
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GdkPixmap *swap_pmap)
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{
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color_area = gtk_drawing_area_new ();
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gtk_drawing_area_size (GTK_DRAWING_AREA (color_area), width, height);
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gtk_widget_set_events (color_area,
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GDK_EXPOSURE_MASK | GDK_BUTTON_PRESS_MASK |
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GDK_BUTTON_RELEASE_MASK |
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GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK);
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gtk_signal_connect (GTK_OBJECT (color_area), "event",
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(GtkSignalFunc) color_area_events,
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NULL);
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default_pixmap = default_pmap;
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swap_pixmap = swap_pmap;
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/* dnd stuff */
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gtk_drag_dest_set (color_area,
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GTK_DEST_DEFAULT_HIGHLIGHT |
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GTK_DEST_DEFAULT_MOTION |
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GTK_DEST_DEFAULT_DROP,
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color_area_target_table, n_color_area_targets,
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GDK_ACTION_COPY);
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gtk_drag_source_set (color_area,
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GDK_BUTTON1_MASK | GDK_BUTTON3_MASK,
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color_area_target_table, n_color_area_targets,
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GDK_ACTION_COPY | GDK_ACTION_MOVE);
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gtk_signal_connect (GTK_OBJECT (color_area),
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"drag_begin",
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GTK_SIGNAL_FUNC (color_area_drag_begin),
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color_area);
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gtk_signal_connect (GTK_OBJECT (color_area),
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"drag_end",
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GTK_SIGNAL_FUNC (color_area_drag_end),
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color_area);
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gtk_signal_connect (GTK_OBJECT (color_area),
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"drag_data_get",
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GTK_SIGNAL_FUNC (color_area_drag_handle),
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color_area);
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gtk_signal_connect (GTK_OBJECT (color_area),
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"drag_data_received",
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GTK_SIGNAL_FUNC (color_area_drop_handle),
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color_area);
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return color_area;
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}
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void
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color_area_update ()
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{
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color_area_draw ();
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}
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static void
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color_area_drag_begin (GtkWidget *widget,
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GdkDragContext *context,
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gpointer data)
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{
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GtkWidget *window;
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GdkColor bg;
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guchar r, g, b;
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window = gtk_window_new (GTK_WINDOW_POPUP);
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gtk_widget_set_app_paintable (GTK_WIDGET (window), TRUE);
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gtk_widget_set_usize (window, 48, 32);
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gtk_widget_realize (window);
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gtk_object_set_data_full (GTK_OBJECT (widget),
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"gimp-color-area-drag-window",
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window,
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(GtkDestroyNotify) gtk_widget_destroy);
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if (active_color == FOREGROUND)
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palette_get_foreground (&r, &g, &b);
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else
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palette_get_background (&r, &g, &b);
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bg.red = 0xff * r;
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bg.green = 0xff * g;
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bg.blue = 0xff * b;
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gdk_color_alloc (gtk_widget_get_colormap (window), &bg);
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gdk_window_set_background (window->window, &bg);
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gtk_drag_set_icon_widget (context, window, -2, -2);
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}
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static void
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color_area_drag_end (GtkWidget *widget,
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GdkDragContext *context,
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gpointer data)
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{
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gtk_object_set_data (GTK_OBJECT (widget),
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"gimp-color-area-drag-window", NULL);
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}
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static void
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color_area_drop_handle (GtkWidget *widget,
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GdkDragContext *context,
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gint x,
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gint y,
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GtkSelectionData *selection_data,
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guint info,
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guint time,
|
|
gpointer data)
|
|
{
|
|
guint16 *vals;
|
|
guchar r, g, b;
|
|
|
|
if (selection_data->length < 0)
|
|
return;
|
|
|
|
if ((selection_data->format != 16) ||
|
|
(selection_data->length != 8))
|
|
{
|
|
g_warning ("Received invalid color data\n");
|
|
return;
|
|
}
|
|
|
|
vals = (guint16 *) selection_data->data;
|
|
|
|
r = vals[0] / 0xff;
|
|
g = vals[1] / 0xff;
|
|
b = vals[2] / 0xff;
|
|
|
|
if (color_notebook_active &&
|
|
active_color == edit_color)
|
|
{
|
|
color_notebook_set_color (color_notebook, r, g, b, TRUE);
|
|
}
|
|
else
|
|
{
|
|
if (active_color == FOREGROUND)
|
|
palette_set_foreground (r, g, b);
|
|
else
|
|
palette_set_background (r, g, b);
|
|
}
|
|
}
|
|
|
|
static void
|
|
color_area_drag_handle (GtkWidget *widget,
|
|
GdkDragContext *context,
|
|
GtkSelectionData *selection_data,
|
|
guint info,
|
|
guint time,
|
|
gpointer data)
|
|
{
|
|
guint16 vals[4];
|
|
guchar r, g, b;
|
|
|
|
if (active_color == FOREGROUND)
|
|
palette_get_foreground (&r, &g, &b);
|
|
else
|
|
palette_get_background (&r, &g, &b);
|
|
|
|
vals[0] = r * 0xff;
|
|
vals[1] = g * 0xff;
|
|
vals[2] = b * 0xff;
|
|
vals[3] = 0xffff;
|
|
|
|
gtk_selection_data_set (selection_data,
|
|
gdk_atom_intern ("application/x-color", FALSE),
|
|
16, (guchar *) vals, 8);
|
|
}
|