src/gtk/colorsel.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 2003 Hiroyuki Yamamoto & The Sylpheed Claws Team
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18  */
  19
  20 #include <gtk/gtk.h>
  21 #include <gdk/gdkkeysyms.h>
  22
  23 #include "colorsel.h"
  24 #include "manage_window.h"
  25
  26 static void quote_colors_set_dialog_ok(GtkWidget *widget, gpointer data)
  27 {
  28         *((gint *) data) = 0;
  29         gtk_main_quit();
  30 }
  31
  32 static void quote_colors_set_dialog_cancel(GtkWidget *widget, gpointer data)
  33 {
  34         *((gint *) data) = 1;
  35         gtk_main_quit();
  36 }
  37
  38 static gboolean quote_colors_set_dialog_key_pressed(GtkWidget *widget,
  39                                                 GdkEventKey *event,
  40                                                 gpointer data)
  41 {
  42         if (event && event->keyval == GDK_Escape) {
  43                 *((gint *) data) = 1;
  44                 gtk_main_quit();
  45                 return TRUE;
  46         } else if (event && event->keyval == GDK_Return) {
  47                 *((gint *) data) = 0;
  48                 gtk_main_quit();
  49                 return FALSE;
  50         }
  51         return FALSE;
  52 }
  53
  54 gint colorsel_select_color_rgb(gchar *title, gint rgbvalue)
  55 {
  56         gdouble color[4] = {0.0, 0.0, 0.0, 0.0};
  57         GtkColorSelectionDialog *color_dialog;
  58         gint result;
  59
  60         color_dialog = GTK_COLOR_SELECTION_DIALOG(gtk_color_selection_dialog_new(title));
  61         gtk_window_set_modal(GTK_WINDOW(color_dialog), TRUE);
  62         gtk_window_set_resizable(GTK_WINDOW(color_dialog), FALSE);
  63         manage_window_set_transient(GTK_WINDOW(color_dialog));
  64
  65         g_signal_connect(G_OBJECT(GTK_COLOR_SELECTION_DIALOG(color_dialog)->ok_button),
  66                          "clicked",
  67                          G_CALLBACK(quote_colors_set_dialog_ok), &result);
  68         g_signal_connect(G_OBJECT(GTK_COLOR_SELECTION_DIALOG(color_dialog)->cancel_button),
  69                          "clicked",
  70                          G_CALLBACK(quote_colors_set_dialog_cancel), &result);
  71         g_signal_connect(G_OBJECT(color_dialog), "key_press_event",
  72                          G_CALLBACK(quote_colors_set_dialog_key_pressed), &result);
  73
  74         /* preselect the previous color in the color selection dialog */
  75         color[0] = (gdouble) ((rgbvalue & 0xff0000) >> 16) / 255.0;
  76         color[1] = (gdouble) ((rgbvalue & 0x00ff00) >>  8) / 255.0;
  77         color[2] = (gdouble)  (rgbvalue & 0x0000ff)        / 255.0;
  78         gtk_color_selection_set_color
  79                 (GTK_COLOR_SELECTION(color_dialog->colorsel), color);
  80
  81         gtk_widget_show(GTK_WIDGET(color_dialog));
  82         gtk_main();
  83
  84         if (result == 0) {
  85                 gint red, green, blue, rgbvalue_new;
  86
  87                 gtk_color_selection_get_color(GTK_COLOR_SELECTION(color_dialog->colorsel), color);
  88
  89                 red          = (gint) (color[0] * 255.0);
  90                 green        = (gint) (color[1] * 255.0);
  91                 blue         = (gint) (color[2] * 255.0);
  92                 rgbvalue_new = (gint) ((red * 0x10000) | (green * 0x100) | blue);
  93
  94 #if 0
  95                 fprintf(stderr, "redc = %f, greenc = %f, bluec = %f\n", color[0], color[1], color[2]);
  96                 fprintf(stderr, "red = %d, green = %d, blue = %d\n", red, green, blue);
  97                 fprintf(stderr, "Color is %x\n", rgbvalue);
  98 #endif
  99
 100                 rgbvalue = rgbvalue_new;
 101         }
 102
 103         gtk_widget_destroy(GTK_WIDGET(color_dialog));
 104
 105         return rgbvalue;
 106 }
 107