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
  22 #include "colorsel.h"
  23 #include "manage_window.h"
  24
  25 static void quote_colors_set_dialog_ok(GtkWidget *widget, gpointer data)
  26 {
  27         *((gint *) data) = 0;
  28         gtk_main_quit();
  29 }
  30
  31 static void quote_colors_set_dialog_cancel(GtkWidget *widget, gpointer data)
  32 {
  33         *((gint *) data) = 1;
  34         gtk_main_quit();
  35 }
  36
  37 static gboolean quote_colors_set_dialog_key_pressed(GtkWidget *widget,
  38                                                 GdkEventKey *event,
  39                                                 gpointer data)
  40 {
  41         *((gint *) data) = 1;
  42         gtk_main_quit();
  43 }
  44
  45 gint colorsel_select_color_rgb(gchar *title, gint rgbvalue)
  46 {
  47         gdouble color[4] = {0.0, 0.0, 0.0, 0.0};
  48         GtkColorSelectionDialog *color_dialog;
  49         gint result;
  50
  51         color_dialog = GTK_COLOR_SELECTION_DIALOG(gtk_color_selection_dialog_new(title));
  52         gtk_window_set_position(GTK_WINDOW(color_dialog), GTK_WIN_POS_CENTER);
  53         gtk_window_set_modal(GTK_WINDOW(color_dialog), TRUE);
  54         gtk_window_set_policy(GTK_WINDOW(color_dialog), FALSE, FALSE, FALSE);
  55         manage_window_set_transient(GTK_WINDOW(color_dialog));
  56
  57         gtk_signal_connect(GTK_OBJECT(GTK_COLOR_SELECTION_DIALOG(color_dialog)->ok_button),
  58                            "clicked", GTK_SIGNAL_FUNC(quote_colors_set_dialog_ok), &result);
  59         gtk_signal_connect(GTK_OBJECT(GTK_COLOR_SELECTION_DIALOG(color_dialog)->cancel_button),
  60                            "clicked", GTK_SIGNAL_FUNC(quote_colors_set_dialog_cancel), &result);
  61         gtk_signal_connect(GTK_OBJECT(color_dialog), "key_press_event",
  62                            GTK_SIGNAL_FUNC(quote_colors_set_dialog_key_pressed),
  63                            &result);
  64
  65         /* preselect the previous color in the color selection dialog */
  66         color[0] = (gdouble) ((rgbvalue & 0xff0000) >> 16) / 255.0;
  67         color[1] = (gdouble) ((rgbvalue & 0x00ff00) >>  8) / 255.0;
  68         color[2] = (gdouble)  (rgbvalue & 0x0000ff)        / 255.0;
  69         gtk_color_selection_set_color
  70                 (GTK_COLOR_SELECTION(color_dialog->colorsel), color);
  71
  72         gtk_widget_show(GTK_WIDGET(color_dialog));
  73         gtk_main();
  74
  75         if (result == 0) {
  76                 gint red, green, blue, rgbvalue_new;
  77
  78                 gtk_color_selection_get_color(GTK_COLOR_SELECTION(color_dialog->colorsel), color);
  79
  80                 red          = (gint) (color[0] * 255.0);
  81                 green        = (gint) (color[1] * 255.0);
  82                 blue         = (gint) (color[2] * 255.0);
  83                 rgbvalue_new = (gint) ((red * 0x10000) | (green * 0x100) | blue);
  84
  85 #if 0
  86                 fprintf(stderr, "redc = %f, greenc = %f, bluec = %f\n", color[0], color[1], color[2]);
  87                 fprintf(stderr, "red = %d, green = %d, blue = %d\n", red, green, blue);
  88                 fprintf(stderr, "Color is %x\n", rgbvalue);
  89 #endif
  90
  91                 rgbvalue = rgbvalue_new;
  92         }
  93
  94         gtk_widget_destroy(GTK_WIDGET(color_dialog));
  95
  96         return rgbvalue;
  97 }
  98