/*
* Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
* Copyright (C) 1999-2004 Hiroyuki Yamamoto
*
* 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.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <glib.h>
#include <gdk/gdkkeysyms.h>
#include <gdk/gdk.h>
#include <gtk/gtkwidget.h>
#include <gtk/gtkhbbox.h>
#include <gtk/gtkbutton.h>
#include <gtk/gtkctree.h>
#include <gtk/gtkcombo.h>
#include <gtk/gtkthemes.h>
#include <gtk/gtkbindings.h>
#include <gtk/gtkitemfactory.h>
#include <stdlib.h>
#include <stdarg.h>
#if (HAVE_WCTYPE_H && HAVE_WCHAR_H)
# include <wchar.h>
# include <wctype.h>
#endif
#include "intl.h"
#include "gtkutils.h"
#include "utils.h"
#include "gtksctree.h"
#include "codeconv.h"
#include "menu.h"
gint gtkut_get_font_width(GdkFont *font)
{
gchar *str;
gint width;
if (conv_get_current_charset() == C_UTF_8)
str = "Abcdef";
else
str = _("Abcdef");
width = gdk_string_width(font, str);
width /= strlen(str);
return width;
}
gint gtkut_get_font_height(GdkFont *font)
{
gchar *str;
gint height;
if (conv_get_current_charset() == C_UTF_8)
str = "Abcdef";
else
str = _("Abcdef");
height = gdk_string_height(font, str);
return height;
}
GdkFont *gtkut_font_load(const gchar *fontset_name)
{
GdkFont *font;
g_return_val_if_fail(fontset_name != NULL, NULL);
if (conv_get_current_charset() == C_US_ASCII)
font = gtkut_font_load_from_fontset(fontset_name);
else
font = gdk_fontset_load(fontset_name);
return font;
}
GdkFont *gtkut_font_load_from_fontset(const gchar *fontset_name)
{
GdkFont *font = NULL;
if (strchr(fontset_name, ',') == NULL) {
font = gdk_font_load(fontset_name);
} else {
gchar **fonts;
gint i;
fonts = g_strsplit(fontset_name, ",", -1);
for (i = 0; fonts[i] != NULL && fonts[i][0] != '\0';
i++) {
font = gdk_font_load(fonts[i]);
if (font) break;
}
g_strfreev(fonts);
}
return font;
}
void gtkut_convert_int_to_gdk_color(gint rgbvalue, GdkColor *color)
{
g_return_if_fail(color != NULL);
color->pixel = 0L;
color->red = (int) (((gdouble)((rgbvalue & 0xff0000) >> 16) / 255.0) * 65535.0);
color->green = (int) (((gdouble)((rgbvalue & 0x00ff00) >> 8) / 255.0) * 65535.0);
color->blue = (int) (((gdouble) (rgbvalue & 0x0000ff) / 255.0) * 65535.0);
}
void gtkut_button_set_create(GtkWidget **bbox,
GtkWidget **button1, const gchar *label1,
GtkWidget **button2, const gchar *label2,
GtkWidget **button3, const gchar *label3)
{
g_return_if_fail(bbox != NULL);
g_return_if_fail(button1 != NULL);
*bbox = gtk_hbutton_box_new();
gtk_button_box_set_layout(GTK_BUTTON_BOX(*bbox), GTK_BUTTONBOX_END);
gtk_button_box_set_spacing(GTK_BUTTON_BOX(*bbox), 5);
*button1 = gtk_button_new_with_label(label1);
GTK_WIDGET_SET_FLAGS(*button1, GTK_CAN_DEFAULT);
gtk_box_pack_start(GTK_BOX(*bbox), *button1, TRUE, TRUE, 0);
gtk_widget_show(*button1);
if (button2) {
*button2 = gtk_button_new_with_label(label2);
GTK_WIDGET_SET_FLAGS(*button2, GTK_CAN_DEFAULT);
gtk_box_pack_start(GTK_BOX(*bbox), *button2, TRUE, TRUE, 0);
gtk_widget_show(*button2);
}
if (button3) {
*button3 = gtk_button_new_with_label(label3);
GTK_WIDGET_SET_FLAGS(*button3, GTK_CAN_DEFAULT);
gtk_box_pack_start(GTK_BOX(*bbox), *button3, TRUE, TRUE, 0);
gtk_widget_show(*button3);
}
}
static void combo_button_size_request(GtkWidget *widget,
GtkRequisition *requisition,
gpointer data)
{
ComboButton *combo = (ComboButton *)data;
if (combo->arrow->allocation.height != requisition->height)
gtk_widget_set_usize(combo->arrow, -1, requisition->height);
}
static void combo_button_enter(GtkWidget *widget, gpointer data)
{
ComboButton *combo = (ComboButton *)data;
if (GTK_WIDGET_STATE(combo->arrow) != GTK_STATE_PRELIGHT) {
gtk_widget_set_state(combo->arrow, GTK_STATE_PRELIGHT);
gtk_widget_queue_draw(combo->arrow);
}
if (GTK_WIDGET_STATE(combo->button) != GTK_STATE_PRELIGHT) {
gtk_widget_set_state(combo->button, GTK_STATE_PRELIGHT);
gtk_widget_queue_draw(combo->button);
}
}
static void combo_button_leave(GtkWidget *widget, gpointer data)
{
ComboButton *combo = (ComboButton *)data;
if (GTK_WIDGET_STATE(combo->arrow) != GTK_STATE_NORMAL) {
gtk_widget_set_state(combo->arrow, GTK_STATE_NORMAL);
gtk_widget_queue_draw(combo->arrow);
}
if (GTK_WIDGET_STATE(combo->button) != GTK_STATE_NORMAL) {
gtk_widget_set_state(combo->button, GTK_STATE_NORMAL);
gtk_widget_queue_draw(combo->button);
}
}
static gint combo_button_arrow_pressed(GtkWidget *widget, GdkEventButton *event,
gpointer data)
{
ComboButton *combo = (ComboButton *)data;
if (!event) return FALSE;
gtk_menu_popup(GTK_MENU(combo->menu), NULL, NULL,
menu_button_position, combo->button,
event->button, event->time);
return FALSE;
}
static void combo_button_destroy(GtkWidget *widget, gpointer data)
{
ComboButton *combo = (ComboButton *)data;
gtk_object_destroy(GTK_OBJECT(combo->factory));
g_free(combo);
}
ComboButton *gtkut_combo_button_create(GtkWidget *button,
GtkItemFactoryEntry *entries,
gint n_entries, const gchar *path,
gpointer data)
{
ComboButton *combo;
GtkWidget *arrow;
combo = g_new0(ComboButton, 1);
combo->arrow = gtk_button_new();
arrow = gtk_arrow_new(GTK_ARROW_DOWN, GTK_SHADOW_OUT);
gtk_container_add(GTK_CONTAINER(combo->arrow), arrow);
GTK_WIDGET_UNSET_FLAGS(combo->arrow, GTK_CAN_FOCUS);
gtk_widget_show_all(combo->arrow);
combo->button = button;
combo->menu = menu_create_items(entries, n_entries, path,
&combo->factory, data);
combo->data = data;
gtk_signal_connect(GTK_OBJECT(combo->button), "size_request",
GTK_SIGNAL_FUNC(combo_button_size_request), combo);
gtk_signal_connect(GTK_OBJECT(combo->button), "enter",
GTK_SIGNAL_FUNC(combo_button_enter), combo);
gtk_signal_connect(GTK_OBJECT(combo->button), "leave",
GTK_SIGNAL_FUNC(combo_button_leave), combo);
gtk_signal_connect(GTK_OBJECT(combo->arrow), "enter",
GTK_SIGNAL_FUNC(combo_button_enter), combo);
gtk_signal_connect(GTK_OBJECT(combo->arrow), "leave",
GTK_SIGNAL_FUNC(combo_button_leave), combo);
gtk_signal_connect(GTK_OBJECT(combo->arrow), "button_press_event",
GTK_SIGNAL_FUNC(combo_button_arrow_pressed), combo);
gtk_signal_connect(GTK_OBJECT(combo->arrow), "destroy",
GTK_SIGNAL_FUNC(combo_button_destroy), combo);
return combo;
}
#define CELL_SPACING 1
#define ROW_TOP_YPIXEL(clist, row) (((clist)->row_height * (row)) + \
(((row) + 1) * CELL_SPACING) + \
(clist)->voffset)
#define ROW_FROM_YPIXEL(clist, y) (((y) - (clist)->voffset) / \
((clist)->row_height + CELL_SPACING))
void gtkut_ctree_node_move_if_on_the_edge(GtkCTree *ctree, GtkCTreeNode *node)
{
GtkCList *clist = GTK_CLIST(ctree);
gint row;
GtkVisibility row_visibility, prev_row_visibility, next_row_visibility;
g_return_if_fail(ctree != NULL);
g_return_if_fail(node != NULL);
row = g_list_position(clist->row_list, (GList *)node);
if (row < 0 || row >= clist->rows || clist->row_height == 0) return;
row_visibility = gtk_clist_row_is_visible(clist, row);
prev_row_visibility = gtk_clist_row_is_visible(clist, row - 1);
next_row_visibility = gtk_clist_row_is_visible(clist, row + 1);
if (row_visibility == GTK_VISIBILITY_NONE) {
gtk_clist_moveto(clist, row, -1, 0.5, 0);
return;
}
if (row_visibility == GTK_VISIBILITY_FULL &&
prev_row_visibility == GTK_VISIBILITY_FULL &&
next_row_visibility == GTK_VISIBILITY_FULL)
return;
if (prev_row_visibility != GTK_VISIBILITY_FULL &&
next_row_visibility != GTK_VISIBILITY_FULL)
return;
if (prev_row_visibility != GTK_VISIBILITY_FULL) {
gtk_clist_moveto(clist, row, -1, 0.2, 0);
return;
}
if (next_row_visibility != GTK_VISIBILITY_FULL) {
gtk_clist_moveto(clist, row, -1, 0.8, 0);
return;
}
}
#undef CELL_SPACING
#undef ROW_TOP_YPIXEL
#undef ROW_FROM_YPIXEL
gint gtkut_ctree_get_nth_from_node(GtkCTree *ctree, GtkCTreeNode *node)
{
g_return_val_if_fail(ctree != NULL, -1);
g_return_val_if_fail(node != NULL, -1);
return g_list_position(GTK_CLIST(ctree)->row_list, (GList *)node);
}
/* get the next node, including the invisible one */
GtkCTreeNode *gtkut_ctree_node_next(GtkCTree *ctree, GtkCTreeNode *node)
{
GtkCTreeNode *parent;
if (!node) return NULL;
if (GTK_CTREE_ROW(node)->children)
return GTK_CTREE_ROW(node)->children;
if (GTK_CTREE_ROW(node)->sibling)
return GTK_CTREE_ROW(node)->sibling;
for (parent = GTK_CTREE_ROW(node)->parent; parent != NULL;
parent = GTK_CTREE_ROW(parent)->parent) {
if (GTK_CTREE_ROW(parent)->sibling)
return GTK_CTREE_ROW(parent)->sibling;
}
return NULL;
}
/* get the previous node, including the invisible one */
GtkCTreeNode *gtkut_ctree_node_prev(GtkCTree *ctree, GtkCTreeNode *node)
{
GtkCTreeNode *prev;
GtkCTreeNode *child;
if (!node) return NULL;
prev = GTK_CTREE_NODE_PREV(node);
if (prev == GTK_CTREE_ROW(node)->parent)
return prev;
child = prev;
while (GTK_CTREE_ROW(child)->children != NULL) {
child = GTK_CTREE_ROW(child)->children;
while (GTK_CTREE_ROW(child)->sibling != NULL)
child = GTK_CTREE_ROW(child)->sibling;
}
return child;
}
gboolean gtkut_ctree_node_is_selected(GtkCTree *ctree, GtkCTreeNode *node)
{
GtkCList *clist = GTK_CLIST(ctree);
GList *cur;
for (cur = clist->selection; cur != NULL; cur = cur->next) {
if (node == GTK_CTREE_NODE(cur->data))
return TRUE;
}
return FALSE;
}
GtkCTreeNode *gtkut_ctree_find_collapsed_parent(GtkCTree *ctree,
GtkCTreeNode *node)
{
if (!node) return NULL;
while ((node = GTK_CTREE_ROW(node)->parent) != NULL) {
if (!GTK_CTREE_ROW(node)->expanded)
return node;
}
return NULL;
}
void gtkut_ctree_expand_parent_all(GtkCTree *ctree, GtkCTreeNode *node)
{
while ((node = gtkut_ctree_find_collapsed_parent(ctree, node)) != NULL)
gtk_ctree_expand(ctree, node);
}
void gtkut_ctree_set_focus_row(GtkCTree *ctree, GtkCTreeNode *node)
{
gtkut_clist_set_focus_row(GTK_CLIST(ctree),
gtkut_ctree_get_nth_from_node(ctree, node));
}
void gtkut_clist_set_focus_row(GtkCList *clist, gint row)
{
clist->focus_row = row;
GTKUT_CTREE_REFRESH(clist);
}
void gtkut_combo_set_items(GtkCombo *combo, const gchar *str1, ...)
{
va_list args;
gchar *s;
GList *combo_items = NULL;
g_return_if_fail(str1 != NULL);
combo_items = g_list_append(combo_items, (gpointer)str1);
va_start(args, str1);
s = va_arg(args, gchar*);
while (s) {
combo_items = g_list_append(combo_items, (gpointer)s);
s = va_arg(args, gchar*);
}
va_end(args);
gtk_combo_set_popdown_strings(combo, combo_items);
g_list_free(combo_items);
}
gchar *gtkut_editable_get_selection(GtkEditable *editable)
{
guint start_pos, end_pos;
g_return_val_if_fail(editable != NULL, NULL);
if (!editable->has_selection) return NULL;
if (editable->selection_start_pos == editable->selection_end_pos)
return NULL;
if (editable->selection_start_pos < editable->selection_end_pos) {
start_pos = editable->selection_start_pos;
end_pos = editable->selection_end_pos;
} else {
start_pos = editable->selection_end_pos;
end_pos = editable->selection_start_pos;
}
return gtk_editable_get_chars(editable, start_pos, end_pos);
}
void gtkut_editable_disable_im(GtkEditable *editable)
{
g_return_if_fail(editable != NULL);
#if USE_XIM
if (editable->ic) {
gdk_ic_destroy(editable->ic);
editable->ic = NULL;
}
if (editable->ic_attr) {
gdk_ic_attr_destroy(editable->ic_attr);
editable->ic_attr = NULL;
}
#endif
}
/*
* Walk through the widget tree and disclaim the selection from all currently
* realized GtkEditable widgets.
*/
static void gtkut_check_before_remove(GtkWidget *widget, gpointer unused)
{
g_return_if_fail(widget != NULL);
if (!GTK_WIDGET_REALIZED(widget))
return; /* all nested widgets must be unrealized too */
if (GTK_IS_CONTAINER(widget))
gtk_container_forall(GTK_CONTAINER(widget),
gtkut_check_before_remove, NULL);
if (GTK_IS_EDITABLE(widget))
gtk_editable_claim_selection(GTK_EDITABLE(widget),
FALSE, GDK_CURRENT_TIME);
}
/*
* Wrapper around gtk_container_remove to work around a bug in GtkText and
* GtkEntry (in all GTK+ versions up to and including at least 1.2.10).
*
* The problem is that unrealizing a GtkText or GtkEntry widget which has the
* active selection completely messes up selection handling, leading to
* non-working selections and crashes. Removing a widget from its container
* implies unrealizing it and all its child widgets; this triggers the bug if
* the removed widget or any of its children is GtkText or GtkEntry. As a
* workaround, this function walks through the widget subtree before removing
* and disclaims the selection from all GtkEditable widgets found.
*
* A similar workaround may be needed for gtk_widget_reparent(); currently it
* is not necessary because Sylpheed does not use gtk_widget_reparent() for
* GtkEditable widgets or containers holding such widgets.
*/
void gtkut_container_remove(GtkContainer *container, GtkWidget *widget)
{
gtkut_check_before_remove(widget, NULL);
gtk_container_remove(container, widget);
}
gboolean gtkut_stext_match_string(GtkSText *text, gint pos, wchar_t *wcs,
gint len, gboolean case_sens)
{
gint match_count = 0;
for (; match_count < len; pos++, match_count++) {
if (case_sens) {
if (GTK_STEXT_INDEX(text, pos) != wcs[match_count])
break;
} else {
if (towlower(GTK_STEXT_INDEX(text, pos)) !=
towlower(wcs[match_count]))
break;
}
}
if (match_count == len)
return TRUE;
else
return FALSE;
}
guint gtkut_stext_str_compare_n(GtkSText *text, guint pos1, guint pos2,
guint len, guint text_len)
{
guint i;
GdkWChar ch1, ch2;
for (i = 0; i < len && pos1 + i < text_len && pos2 + i < text_len; i++) {
ch1 = GTK_STEXT_INDEX(text, pos1 + i);
ch2 = GTK_STEXT_INDEX(text, pos2 + i);
if (ch1 != ch2)
break;
}
return i;
}
guint gtkut_stext_str_compare(GtkSText *text, guint start_pos, guint text_len,
const gchar *str)
{
wchar_t *wcs;
guint len;
gboolean result;
if (!str) return 0;
wcs = strdup_mbstowcs(str);
if (!wcs) return 0;
len = wcslen(wcs);
if (len > text_len - start_pos)
result = FALSE;
else
result = gtkut_stext_match_string(text, start_pos, wcs, len,
TRUE);
g_free(wcs);
return result ? len : 0;
}
gint gtkut_stext_find(GtkSText *text, guint start_pos, const gchar *str,
gboolean case_sens)
{
gint pos;
wchar_t *wcs;
gint len;
gint text_len;
gint found_pos = -1;
wcs = strdup_mbstowcs(str);
g_return_val_if_fail(wcs != NULL, -1);
len = wcslen(wcs);
text_len = gtk_stext_get_length(text);
for (pos = start_pos; pos < text_len; pos++) {
if (text_len - pos < len)
break;
if (gtkut_stext_match_string(text, pos, wcs, len, case_sens)
== TRUE) {
found_pos = pos;
break;
}
}
g_free(wcs);
return found_pos;
}
gboolean gtkut_stext_is_uri_string(GtkSText *text,
guint start_pos, guint text_len)
{
if (gtkut_stext_str_compare(text, start_pos, text_len, "http://") ||
gtkut_stext_str_compare(text, start_pos, text_len, "ftp://") ||
gtkut_stext_str_compare(text, start_pos, text_len, "https://") ||
gtkut_stext_str_compare(text, start_pos, text_len, "www."))
return TRUE;
return FALSE;
}
void gtkut_stext_clear(GtkSText *text)
{
gtk_stext_freeze(text);
gtk_stext_set_point(text, 0);
gtk_stext_forward_delete(text, gtk_stext_get_length(text));
gtk_stext_thaw(text);
}
void gtkut_window_popup(GtkWidget *window)
{
gint x, y, sx, sy, new_x, new_y;
g_return_if_fail(window != NULL);
g_return_if_fail(window->window != NULL);
sx = gdk_screen_width();
sy = gdk_screen_height();
gdk_window_get_origin(window->window, &x, &y);
new_x = x % sx; if (new_x < 0) new_x = 0;
new_y = y % sy; if (new_y < 0) new_y = 0;
if (new_x != x || new_y != y)
gdk_window_move(window->window, new_x, new_y);
gdk_window_raise(window->window);
gdk_window_show(window->window);
}
void gtkut_widget_get_uposition(GtkWidget *widget, gint *px, gint *py)
{
gint x, y;
gint sx, sy;
g_return_if_fail(widget != NULL);
g_return_if_fail(widget->window != NULL);
sx = gdk_screen_width();
sy = gdk_screen_height();
/* gdk_window_get_root_origin ever return *rootwindow*'s position */
gdk_window_get_root_origin(widget->window, &x, &y);
x %= sx; if (x < 0) x = 0;
y %= sy; if (y < 0) y = 0;
*px = x;
*py = y;
}
void gtkut_widget_disable_theme_engine(GtkWidget *widget)
{
GtkStyle *style, *new_style;
style = gtk_widget_get_style(widget);
if (style->engine) {
GtkThemeEngine *engine;
engine = style->engine;
style->engine = NULL;
new_style = gtk_style_copy(style);
style->engine = engine;
gtk_widget_set_style(widget, new_style);
}
}
static void gtkut_widget_draw_cb(GtkWidget *widget, GdkRectangle *area,
gboolean *flag)
{
*flag = TRUE;
gtk_signal_disconnect_by_data(GTK_OBJECT(widget), flag);
}
void gtkut_widget_wait_for_draw(GtkWidget *widget)
{
gboolean flag = FALSE;
if (!GTK_WIDGET_VISIBLE(widget) || !GTK_WIDGET_MAPPED(widget)) return;
gtk_signal_connect(GTK_OBJECT(widget), "draw",
GTK_SIGNAL_FUNC(gtkut_widget_draw_cb), &flag);
while (!flag)
gtk_main_iteration();
}
static void gtkut_clist_bindings_add(GtkWidget *clist)
{
GtkBindingSet *binding_set;
binding_set = gtk_binding_set_by_class
(GTK_CLIST_CLASS(GTK_OBJECT(clist)->klass));
gtk_binding_entry_add_signal(binding_set, GDK_n, GDK_CONTROL_MASK,
"scroll_vertical", 2,
GTK_TYPE_ENUM, GTK_SCROLL_STEP_FORWARD,
GTK_TYPE_FLOAT, 0.0);
gtk_binding_entry_add_signal(binding_set, GDK_p, GDK_CONTROL_MASK,
"scroll_vertical", 2,
GTK_TYPE_ENUM, GTK_SCROLL_STEP_BACKWARD,
GTK_TYPE_FLOAT, 0.0);
}
void gtkut_widget_init(void)
{
GtkWidget *clist;
clist = gtk_clist_new(1);
gtkut_clist_bindings_add(clist);
gtk_widget_unref(clist);
clist = gtk_ctree_new(1, 0);
gtkut_clist_bindings_add(clist);
gtk_widget_unref(clist);
clist = gtk_sctree_new_with_titles(1, 0, NULL);
gtkut_clist_bindings_add(clist);
gtk_widget_unref(clist);
}
syntax highlighted by Code2HTML, v. 0.9.1