1 files changed, 435 insertions, 0 deletions

diff --git a/src/colorlabel.c b/src/colorlabel.c
new file mode 100644
index 0000000..1a35ad2
--- /dev/null
+++ b/src/colorlabel.c
@@ -0,0 +1,435 @@
+/*
+ * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
+ * Copyright (C) 2001-2010 Hiroyuki Yamamoto & The Sylpheed Claws Team
+ *
+ * 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.
+ */
+
+/* (alfons) - based on a contribution by Satoshi Nagayasu; revised for colorful 
+ * menu and more Sylpheed integration. The idea to put the code in a separate
+ * file is just that it make it easier to allow "user changeable" label colors.
+ */
+
+#include "defs.h"
+
+#include <glib.h>
+#include <glib/gi18n.h>
+#include <gtk/gtkwidget.h>
+#include <gtk/gtkpixmap.h>
+#include <gtk/gtkmenu.h>
+#include <gtk/gtkcheckmenuitem.h>
+#include <gtk/gtklabel.h>
+#include <gtk/gtkmenuitem.h>
+#include <gtk/gtkalignment.h>
+#include <gtk/gtkhbox.h>
+#include <gtk/gtkvbox.h>
+#include <gtk/gtkwindow.h>
+#include <gtk/gtkdrawingarea.h>
+
+#include "colorlabel.h"
+#include "gtkutils.h"
+#include "utils.h"
+#include "prefs.h"
+
+static gchar *labels[] = {
+        N_("Orange"),
+        N_("Red") ,
+        N_("Pink"),
+        N_("Sky blue"),
+        N_("Blue"),
+        N_("Green"),
+        N_("Brown")
+};
+
+typedef enum LabelColorChangeFlags_ {
+        LCCF_COLOR = 1 << 0,
+        LCCF_LABEL = 1 << 1,
+        LCCF_ALL   = LCCF_COLOR | LCCF_LABEL
+} LabelColorChangeFlags;
+
+/* XXX: if you add colors, make sure you also check the procmsg.h.
+ * color indices are stored as 3 bits; that explains the max. of 7 colors */
+static struct 
+{
+        LabelColorChangeFlags   changed; 
+        GdkColor                color;
+
+        /* XXX: note that the label member is supposed to be dynamically 
+         * allocated and fffreed */
+        gchar                   *label;
+        GtkWidget               *widget;
+        GtkWidget               *label_widget;
+} label_colors[] = {
+        { LCCF_ALL, { 0, 0xffff, (0x99 << 8), 0x0 },            NULL, NULL, NULL },
+        { LCCF_ALL, { 0, 0xffff, 0, 0 },                        NULL, NULL, NULL },
+        { LCCF_ALL, { 0, 0xffff, (0x66 << 8), 0xffff },         NULL, NULL, NULL },
+        { LCCF_ALL, { 0, 0x0, (0xcc << 8), 0xffff },            NULL, NULL, NULL },
+        { LCCF_ALL, { 0, 0x0, 0x0, 0xffff },                    NULL, NULL, NULL },
+        { LCCF_ALL, { 0, 0x0, 0x99 << 8, 0x0 },                 NULL, NULL, NULL },
+        { LCCF_ALL, { 0, 0x66 << 8, 0x33 << 8, 0x33 << 8 },     NULL, NULL, NULL }
+};
+
+#define LABEL_COLOR_WIDTH       28
+#define LABEL_COLOR_HEIGHT      16
+
+#define LABEL_COLORS_ELEMS (sizeof label_colors / sizeof label_colors[0])
+
+#define G_RETURN_VAL_IF_INVALID_COLOR(color, val) \
+        g_return_val_if_fail((color) >= 0 && (color) < LABEL_COLORS_ELEMS, (val))
+
+static void colorlabel_recreate        (gint);
+static void colorlabel_recreate_label  (gint);
+
+gint colorlabel_get_color_count(void)
+{
+        return LABEL_COLORS_ELEMS;
+}
+
+GdkColor colorlabel_get_color(gint color_index)
+{
+        GdkColor invalid = { 0 };
+
+        G_RETURN_VAL_IF_INVALID_COLOR(color_index, invalid);
+
+        return label_colors[color_index].color;
+}
+
+const gchar *colorlabel_get_color_text(gint color_index)
+{
+        G_RETURN_VAL_IF_INVALID_COLOR(color_index, NULL);
+
+        return label_colors[color_index].label ?
+                label_colors[color_index].label : gettext(labels[color_index]);
+}
+
+const gchar *colorlabel_get_custom_color_text(gint color_index)
+{
+        G_RETURN_VAL_IF_INVALID_COLOR(color_index, NULL);
+
+        return label_colors[color_index].label;
+}
+
+void colorlabel_set_color_text(gint color_index, const gchar *label)
+{
+        if (label_colors[color_index].label)
+                g_free(label_colors[color_index].label);
+
+        label_colors[color_index].label = g_strdup(label);
+        label_colors[color_index].changed |= LCCF_LABEL;
+}
+
+static gboolean colorlabel_drawing_area_expose_event_cb
+        (GtkWidget *widget, GdkEventExpose *expose, gpointer data)
+{
+        GdkDrawable *drawable = widget->window;
+        gulong c = (gulong) GPOINTER_TO_INT(data);
+        GdkColor color;
+        GdkGC *gc;
+
+        color.red   = ((c >> 16UL) & 0xFFUL) << 8UL;
+        color.green = ((c >>  8UL) & 0xFFUL) << 8UL;
+        color.blue  = ((c)         & 0xFFUL) << 8UL;
+
+        gdk_colormap_alloc_color(gtk_widget_get_colormap(widget), &color, FALSE, TRUE);
+
+        gc = gdk_gc_new(drawable);
+
+        gdk_gc_set_foreground(gc, &color);
+        gdk_draw_rectangle(drawable, gc,
+                           TRUE, 0, 0, widget->allocation.width - 1,
+                           widget->allocation.height - 1);
+        gdk_draw_rectangle(drawable, widget->style->black_gc,
+                           FALSE, 0, 0, widget->allocation.width - 1,
+                           widget->allocation.height - 1);
+
+        gdk_gc_unref(gc);                          
+
+        return FALSE;
+}
+
+GtkWidget *colorlabel_create_color_widget(GdkColor color)
+{
+        GtkWidget *widget;
+
+        widget = gtk_drawing_area_new();
+        gtk_drawing_area_size(GTK_DRAWING_AREA(widget),
+                              LABEL_COLOR_WIDTH - 2, LABEL_COLOR_HEIGHT - 4);
+
+#define CL(x)           (((gulong) (x) >> (gulong) 8) & 0xFFUL) 
+#define CR(r, g, b)     ((CL(r) << (gulong) 16) | \
+                         (CL(g) << (gulong)  8) | \
+                         (CL(b)))
+
+        g_signal_connect(G_OBJECT(widget), "expose_event", 
+                         G_CALLBACK(colorlabel_drawing_area_expose_event_cb),
+                         GINT_TO_POINTER
+                                ((gint)CR(color.red, color.green, color.blue)));
+
+        return widget;
+}
+
+/* XXX: this function to check if menus with colors and labels should
+ * be recreated */
+gboolean colorlabel_changed(void)
+{
+        gint n;
+
+        for (n = 0; n < LABEL_COLORS_ELEMS; n++) {
+                if (label_colors[n].changed) 
+                        return TRUE;
+        }
+
+        return FALSE;
+}
+
+/* XXX: colorlabel_recreate_XXX are there to make sure everything
+ * is initialized ok, without having to call a global _xxx_init_
+ * function */
+static void colorlabel_recreate_color(gint color)
+{
+        GtkWidget *widget;
+
+        if (!(label_colors[color].changed & LCCF_COLOR))
+                return;
+
+        widget = colorlabel_create_color_widget(label_colors[color].color);
+        g_return_if_fail(widget);
+
+        if (label_colors[color].widget) 
+                gtk_widget_destroy(label_colors[color].widget);
+
+        label_colors[color].widget = widget;            
+        label_colors[color].changed &= ~LCCF_COLOR;
+}
+
+static void colorlabel_recreate_label(gint color)
+{
+        const gchar *text;
+
+        if (!(label_colors[color].changed & LCCF_LABEL))
+                return;
+
+        text = colorlabel_get_color_text(color);
+
+        if (label_colors[color].label_widget)
+                gtk_label_set_text(GTK_LABEL(label_colors[color].label_widget),
+                                   text);
+        else
+                label_colors[color].label_widget = gtk_label_new(text);
+
+        label_colors[color].changed &= ~LCCF_LABEL;
+}
+
+/* XXX: call this function everytime when you're doing important
+ * stuff with the label_colors[] array */
+static void colorlabel_recreate(gint color)
+{
+        colorlabel_recreate_label(color);
+        colorlabel_recreate_color(color);
+}
+
+static void colorlabel_recreate_all(void)
+{
+        gint n;
+
+        for (n = 0; n < LABEL_COLORS_ELEMS; n++) 
+                colorlabel_recreate(n);
+}
+
+/* colorlabel_create_check_color_menu_item() - creates a color
+ * menu item with a check box */
+GtkWidget *colorlabel_create_check_color_menu_item(gint color_index)
+{
+        GtkWidget *hbox; 
+        GtkWidget *vbox; 
+        GtkWidget *item;
+
+        G_RETURN_VAL_IF_INVALID_COLOR(color_index, NULL);
+
+        item = gtk_check_menu_item_new();
+
+        colorlabel_recreate(color_index);
+
+        hbox = gtk_hbox_new(FALSE, 0);
+        gtk_widget_show(hbox);
+        gtk_container_add(GTK_CONTAINER(item), hbox);
+
+        vbox = gtk_vbox_new(TRUE, 0);
+        gtk_widget_show(vbox);
+        gtk_container_set_border_width(GTK_CONTAINER(vbox), 1);
+
+        gtk_container_add(GTK_CONTAINER(vbox),
+                          label_colors[color_index].widget);
+        gtk_widget_show(label_colors[color_index].widget);
+
+        gtk_box_pack_start(GTK_BOX(hbox), vbox, FALSE, FALSE, 0);
+        gtk_box_pack_start(GTK_BOX(hbox), label_colors[color_index].label_widget, FALSE, FALSE, 4);
+        gtk_widget_show(label_colors[color_index].label_widget);
+
+        return item;
+}
+
+/* colorlabel_create_color_menu() - creates a color menu without 
+ * checkitems, probably for use in combo items */
+GtkWidget *colorlabel_create_color_menu(void)
+{
+        GtkWidget *label; 
+        GtkWidget *item;
+        GtkWidget *menu;
+        gint i;
+
+        colorlabel_recreate_all();
+
+        /* create the menu items. each item has its color code attached */
+        menu = gtk_menu_new();
+        g_object_set_data(G_OBJECT(menu), "label_color_menu", menu);
+
+#if 0
+        item = gtk_menu_item_new_with_label(_("None"));
+        gtk_menu_shell_append(GTK_MENU_SHELL(menu), item);
+        g_object_set_data(G_OBJECT(item), "color", GUINT_TO_POINTER(0));
+        gtk_widget_show(item);
+#endif
+
+        /* and the color items */
+        for (i = 0; i < LABEL_COLORS_ELEMS; i++) {
+                GtkWidget *hbox; 
+                GtkWidget *vbox;
+                GtkWidget *widget;
+
+                item  = gtk_menu_item_new();
+                g_object_set_data(G_OBJECT(item), "color",
+                                  GUINT_TO_POINTER(i + 1));
+
+                label = gtk_label_new(colorlabel_get_color_text(i));
+
+                gtk_widget_show(label);
+                hbox = gtk_hbox_new(FALSE, 0);
+                gtk_widget_show(hbox);
+                gtk_container_add(GTK_CONTAINER(item), hbox);
+
+                vbox = gtk_vbox_new(TRUE, 0);
+                gtk_widget_show(vbox);
+                gtk_container_set_border_width(GTK_CONTAINER(vbox), 1);
+
+                widget = colorlabel_create_color_widget(label_colors[i].color);
+                gtk_widget_show(widget);
+                gtk_box_pack_start(GTK_BOX(vbox), widget, FALSE, FALSE, 0);
+
+                gtk_box_pack_start(GTK_BOX(hbox), vbox, FALSE, FALSE, 0);
+                gtk_box_pack_start(GTK_BOX(hbox), label, FALSE, FALSE, 4);
+                
+                gtk_menu_shell_append(GTK_MENU_SHELL(menu), item);
+                gtk_widget_show(item);
+        }
+
+        gtk_widget_show(menu);
+
+        return menu;
+}
+
+guint colorlabel_get_color_menu_active_item(GtkWidget *menu)
+{
+        GtkWidget *menuitem;
+        guint color;
+
+        g_return_val_if_fail
+                (g_object_get_data(G_OBJECT(menu), "label_color_menu"), 0);
+        menuitem = gtk_menu_get_active(GTK_MENU(menu));
+        color = GPOINTER_TO_UINT
+                (g_object_get_data(G_OBJECT(menuitem), "color"));
+        return color;
+}
+
+void colorlabel_update_menu(void)
+{
+        gint i;
+
+        for (i = 0; i < LABEL_COLORS_ELEMS; i++) {
+                if (label_colors[i].widget && label_colors[i].changed) {
+                        colorlabel_recreate(i);
+                }
+        }
+}
+
+gint colorlabel_read_config(void)
+{
+        gchar *path;
+        FILE *fp;
+        gint i;
+        gchar buf[PREFSBUFSIZE];
+
+        path = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S, "colorlabelrc",
+                           NULL);
+        if ((fp = g_fopen(path, "rb")) == NULL) {
+                g_free(path);
+                return -1;
+        }
+
+        for (i = 0; i < LABEL_COLORS_ELEMS; i++) {
+                if (fgets(buf, sizeof(buf), fp) == NULL)
+                        break;
+                g_strstrip(buf);
+                if (buf[0] != '\0') {
+                        colorlabel_set_color_text(i, buf);
+                }
+        }
+
+        fclose(fp);
+        g_free(path);
+
+        return 0;
+}
+
+gint colorlabel_write_config(void)
+{
+        gchar *path;
+        PrefFile *pfile;
+        gint i;
+        gint ret;
+        const gchar *text;
+
+        path = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S, "colorlabelrc",
+                           NULL);
+        if ((pfile = prefs_file_open(path)) == NULL) {
+                g_warning("failed to write colorlabelrc");
+                g_free(path);
+                return -1;
+        }
+
+        for (i = 0; i < LABEL_COLORS_ELEMS; i++) {
+                text = colorlabel_get_custom_color_text(i);
+                ret = 0;
+                if (text)
+                        ret = fputs(text, pfile->fp);
+
+                if (ret == EOF || fputc('\n', pfile->fp) == EOF) {
+                        FILE_OP_ERROR(path, "fputs || fputc");
+                        prefs_file_close_revert(pfile);
+                        g_free(path);
+                        return -1;
+                }
+        }
+
+        if (prefs_file_close(pfile) < 0) {
+                g_warning("failed to write colorlabelrc");
+                g_free(path);
+                return -1;
+        }
+
+        g_free(path);
+
+        return 0;
+}