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gtk2drawing.c
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gtk2drawing.c
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/*
* This file contains painting functions for each of the gtk2 widgets.
* Adapted from the gtkdrawing.c, and gtk+2.0 source.
*/
#include <gtk/gtk.h>
#include <gdk/gdkprivate.h>
#include <string.h>
#include "gtkdrawing.h"
#include "nsDebug.h"
#include "prinrval.h"
#include <math.h>
#define XTHICKNESS(style) (style->xthickness)
#define YTHICKNESS(style) (style->ythickness)
#define WINDOW_IS_MAPPED(window) ((window) && GDK_IS_WINDOW(window) && gdk_window_is_visible(window))
static GtkWidget* gProtoWindow;
static GtkWidget* gProtoLayout;
static GtkWidget* gButtonWidget;
static GtkWidget* gToggleButtonWidget;
static GtkWidget* gButtonArrowWidget;
static GtkWidget* gCheckboxWidget;
static GtkWidget* gRadiobuttonWidget;
static GtkWidget* gHorizScrollbarWidget;
static GtkWidget* gVertScrollbarWidget;
static GtkWidget* gSpinWidget;
static GtkWidget* gHScaleWidget;
static GtkWidget* gVScaleWidget;
static GtkWidget* gEntryWidget;
static GtkWidget* gComboBoxWidget;
static GtkWidget* gComboBoxButtonWidget;
static GtkWidget* gComboBoxArrowWidget;
static GtkWidget* gComboBoxSeparatorWidget;
static GtkWidget* gComboBoxEntryWidget;
static GtkWidget* gComboBoxEntryTextareaWidget;
static GtkWidget* gComboBoxEntryButtonWidget;
static GtkWidget* gComboBoxEntryArrowWidget;
static GtkWidget* gHandleBoxWidget;
static GtkWidget* gToolbarWidget;
static GtkWidget* gFrameWidget;
static GtkWidget* gStatusbarWidget;
static GtkWidget* gProgressWidget;
static GtkWidget* gTabWidget;
static GtkWidget* gTooltipWidget;
static GtkWidget* gMenuBarWidget;
static GtkWidget* gMenuBarItemWidget;
static GtkWidget* gMenuPopupWidget;
static GtkWidget* gMenuItemWidget;
static GtkWidget* gImageMenuItemWidget;
static GtkWidget* gCheckMenuItemWidget;
static GtkWidget* gTreeViewWidget;
static GtkTreeViewColumn* gMiddleTreeViewColumn;
static GtkWidget* gTreeHeaderCellWidget;
static GtkWidget* gTreeHeaderSortArrowWidget;
static GtkWidget* gExpanderWidget;
static GtkWidget* gToolbarSeparatorWidget;
static GtkWidget* gMenuSeparatorWidget;
static GtkWidget* gHPanedWidget;
static GtkWidget* gVPanedWidget;
static GtkWidget* gScrolledWindowWidget;
static style_prop_t style_prop_func;
static gboolean have_arrow_scaling;
static gboolean is_initialized;
/* Because we have such an unconventional way of drawing widgets, signal to the GTK theme engine
that they are drawing for Mozilla instead of a conventional GTK app so they can do any specific
things they may want to do. */
static void
moz_gtk_set_widget_name(GtkWidget* widget)
{
gtk_widget_set_name(widget, "MozillaGtkWidget");
}
gint
moz_gtk_enable_style_props(style_prop_t styleGetProp)
{
style_prop_func = styleGetProp;
return MOZ_GTK_SUCCESS;
}
static gint
ensure_window_widget()
{
if (!gProtoWindow) {
gProtoWindow = gtk_window_new(GTK_WINDOW_POPUP);
gtk_widget_realize(gProtoWindow);
moz_gtk_set_widget_name(gProtoWindow);
}
return MOZ_GTK_SUCCESS;
}
static gint
setup_widget_prototype(GtkWidget* widget)
{
ensure_window_widget();
if (!gProtoLayout) {
gProtoLayout = gtk_fixed_new();
gtk_container_add(GTK_CONTAINER(gProtoWindow), gProtoLayout);
}
gtk_container_add(GTK_CONTAINER(gProtoLayout), widget);
gtk_widget_realize(widget);
g_object_set_data(G_OBJECT(widget), "transparent-bg-hint", GINT_TO_POINTER(TRUE));
return MOZ_GTK_SUCCESS;
}
static gint
ensure_button_widget()
{
if (!gButtonWidget) {
gButtonWidget = gtk_button_new_with_label("M");
setup_widget_prototype(gButtonWidget);
}
return MOZ_GTK_SUCCESS;
}
static gint
ensure_hpaned_widget()
{
if (!gHPanedWidget) {
gHPanedWidget = gtk_hpaned_new();
setup_widget_prototype(gHPanedWidget);
}
return MOZ_GTK_SUCCESS;
}
static gint
ensure_vpaned_widget()
{
if (!gVPanedWidget) {
gVPanedWidget = gtk_vpaned_new();
setup_widget_prototype(gVPanedWidget);
}
return MOZ_GTK_SUCCESS;
}
static gint
ensure_toggle_button_widget()
{
if (!gToggleButtonWidget) {
gToggleButtonWidget = gtk_toggle_button_new();
setup_widget_prototype(gToggleButtonWidget);
/* toggle button must be set active to get the right style on hover. */
GTK_TOGGLE_BUTTON(gToggleButtonWidget)->active = TRUE;
}
return MOZ_GTK_SUCCESS;
}
static gint
ensure_button_arrow_widget()
{
if (!gButtonArrowWidget) {
ensure_toggle_button_widget();
gButtonArrowWidget = gtk_arrow_new(GTK_ARROW_DOWN, GTK_SHADOW_OUT);
gtk_container_add(GTK_CONTAINER(gToggleButtonWidget), gButtonArrowWidget);
gtk_widget_realize(gButtonArrowWidget);
}
return MOZ_GTK_SUCCESS;
}
static gint
ensure_checkbox_widget()
{
if (!gCheckboxWidget) {
gCheckboxWidget = gtk_check_button_new_with_label("M");
setup_widget_prototype(gCheckboxWidget);
}
return MOZ_GTK_SUCCESS;
}
static gint
ensure_radiobutton_widget()
{
if (!gRadiobuttonWidget) {
gRadiobuttonWidget = gtk_radio_button_new_with_label(NULL, "M");
setup_widget_prototype(gRadiobuttonWidget);
}
return MOZ_GTK_SUCCESS;
}
static gint
ensure_scrollbar_widget()
{
if (!gVertScrollbarWidget) {
gVertScrollbarWidget = gtk_vscrollbar_new(NULL);
setup_widget_prototype(gVertScrollbarWidget);
}
if (!gHorizScrollbarWidget) {
gHorizScrollbarWidget = gtk_hscrollbar_new(NULL);
setup_widget_prototype(gHorizScrollbarWidget);
}
return MOZ_GTK_SUCCESS;
}
static gint
ensure_spin_widget()
{
if (!gSpinWidget) {
gSpinWidget = gtk_spin_button_new(NULL, 1, 0);
setup_widget_prototype(gSpinWidget);
}
return MOZ_GTK_SUCCESS;
}
static gint
ensure_scale_widget()
{
if (!gHScaleWidget) {
gHScaleWidget = gtk_hscale_new(NULL);
setup_widget_prototype(gHScaleWidget);
}
if (!gVScaleWidget) {
gVScaleWidget = gtk_vscale_new(NULL);
setup_widget_prototype(gVScaleWidget);
}
return MOZ_GTK_SUCCESS;
}
static gint
ensure_entry_widget()
{
if (!gEntryWidget) {
gEntryWidget = gtk_entry_new();
setup_widget_prototype(gEntryWidget);
}
return MOZ_GTK_SUCCESS;
}
/* We need to have pointers to the inner widgets (button, separator, arrow)
* of the ComboBox to get the correct rendering from theme engines which
* special cases their look. Since the inner layout can change, we ask GTK
* to NULL our pointers when they are about to become invalid because the
* corresponding widgets don't exist anymore. It's the role of
* g_object_add_weak_pointer().
* Note that if we don't find the inner widgets (which shouldn't happen), we
* fallback to use generic "non-inner" widgets, and they don't need that kind
* of weak pointer since they are explicit children of gProtoWindow and as
* such GTK holds a strong reference to them. */
static void
moz_gtk_get_combo_box_inner_button(GtkWidget *widget, gpointer client_data)
{
if (GTK_IS_TOGGLE_BUTTON(widget)) {
gComboBoxButtonWidget = widget;
g_object_add_weak_pointer(G_OBJECT(widget),
(gpointer) &gComboBoxButtonWidget);
gtk_widget_realize(widget);
g_object_set_data(G_OBJECT(widget), "transparent-bg-hint", GINT_TO_POINTER(TRUE));
}
}
static void
moz_gtk_get_combo_box_button_inner_widgets(GtkWidget *widget,
gpointer client_data)
{
if (GTK_IS_SEPARATOR(widget)) {
gComboBoxSeparatorWidget = widget;
g_object_add_weak_pointer(G_OBJECT(widget),
(gpointer) &gComboBoxSeparatorWidget);
} else if (GTK_IS_ARROW(widget)) {
gComboBoxArrowWidget = widget;
g_object_add_weak_pointer(G_OBJECT(widget),
(gpointer) &gComboBoxArrowWidget);
} else
return;
gtk_widget_realize(widget);
g_object_set_data(G_OBJECT(widget), "transparent-bg-hint", GINT_TO_POINTER(TRUE));
}
static gint
ensure_combo_box_widgets()
{
GtkWidget* buttonChild;
if (gComboBoxButtonWidget && gComboBoxArrowWidget)
return MOZ_GTK_SUCCESS;
/* Create a ComboBox if needed */
if (!gComboBoxWidget) {
gComboBoxWidget = gtk_combo_box_new();
setup_widget_prototype(gComboBoxWidget);
}
/* Get its inner Button */
gtk_container_forall(GTK_CONTAINER(gComboBoxWidget),
moz_gtk_get_combo_box_inner_button,
NULL);
if (gComboBoxButtonWidget) {
/* Get the widgets inside the Button */
buttonChild = GTK_BIN(gComboBoxButtonWidget)->child;
if (GTK_IS_HBOX(buttonChild)) {
/* appears-as-list = FALSE, cell-view = TRUE; the button
* contains an hbox. This hbox is there because the ComboBox
* needs to place a cell renderer, a separator, and an arrow in
* the button when appears-as-list is FALSE. */
gtk_container_forall(GTK_CONTAINER(buttonChild),
moz_gtk_get_combo_box_button_inner_widgets,
NULL);
} else if(GTK_IS_ARROW(buttonChild)) {
/* appears-as-list = TRUE, or cell-view = FALSE;
* the button only contains an arrow */
gComboBoxArrowWidget = buttonChild;
g_object_add_weak_pointer(G_OBJECT(buttonChild), (gpointer)
&gComboBoxArrowWidget);
gtk_widget_realize(gComboBoxArrowWidget);
g_object_set_data(G_OBJECT(gComboBoxArrowWidget),
"transparent-bg-hint", GINT_TO_POINTER(TRUE));
}
} else {
/* Shouldn't be reached with current internal gtk implementation; we
* use a generic toggle button as last resort fallback to avoid
* crashing. */
ensure_toggle_button_widget();
gComboBoxButtonWidget = gToggleButtonWidget;
}
if (!gComboBoxArrowWidget) {
/* Shouldn't be reached with current internal gtk implementation;
* we gButtonArrowWidget as last resort fallback to avoid
* crashing. */
ensure_button_arrow_widget();
gComboBoxArrowWidget = gButtonArrowWidget;
}
/* We don't test the validity of gComboBoxSeparatorWidget since there
* is none when "appears-as-list" = TRUE or "cell-view" = FALSE; if it
* is invalid we just won't paint it. */
return MOZ_GTK_SUCCESS;
}
/* We need to have pointers to the inner widgets (entry, button, arrow) of
* the ComboBoxEntry to get the correct rendering from theme engines which
* special cases their look. Since the inner layout can change, we ask GTK
* to NULL our pointers when they are about to become invalid because the
* corresponding widgets don't exist anymore. It's the role of
* g_object_add_weak_pointer().
* Note that if we don't find the inner widgets (which shouldn't happen), we
* fallback to use generic "non-inner" widgets, and they don't need that kind
* of weak pointer since they are explicit children of gProtoWindow and as
* such GTK holds a strong reference to them. */
static void
moz_gtk_get_combo_box_entry_inner_widgets(GtkWidget *widget,
gpointer client_data)
{
if (GTK_IS_TOGGLE_BUTTON(widget)) {
gComboBoxEntryButtonWidget = widget;
g_object_add_weak_pointer(G_OBJECT(widget),
(gpointer) &gComboBoxEntryButtonWidget);
} else if (GTK_IS_ENTRY(widget)) {
gComboBoxEntryTextareaWidget = widget;
g_object_add_weak_pointer(G_OBJECT(widget),
(gpointer) &gComboBoxEntryTextareaWidget);
} else
return;
gtk_widget_realize(widget);
g_object_set_data(G_OBJECT(widget), "transparent-bg-hint", GINT_TO_POINTER(TRUE));
}
static void
moz_gtk_get_combo_box_entry_arrow(GtkWidget *widget, gpointer client_data)
{
if (GTK_IS_ARROW(widget)) {
gComboBoxEntryArrowWidget = widget;
g_object_add_weak_pointer(G_OBJECT(widget),
(gpointer) &gComboBoxEntryArrowWidget);
gtk_widget_realize(widget);
g_object_set_data(G_OBJECT(widget), "transparent-bg-hint", GINT_TO_POINTER(TRUE));
}
}
static gint
ensure_combo_box_entry_widgets()
{
GtkWidget* buttonChild;
if (gComboBoxEntryTextareaWidget &&
gComboBoxEntryButtonWidget &&
gComboBoxEntryArrowWidget)
return MOZ_GTK_SUCCESS;
/* Create a ComboBoxEntry if needed */
if (!gComboBoxEntryWidget) {
gComboBoxEntryWidget = gtk_combo_box_entry_new();
setup_widget_prototype(gComboBoxEntryWidget);
}
/* Get its inner Entry and Button */
gtk_container_forall(GTK_CONTAINER(gComboBoxEntryWidget),
moz_gtk_get_combo_box_entry_inner_widgets,
NULL);
if (!gComboBoxEntryTextareaWidget) {
ensure_entry_widget();
gComboBoxEntryTextareaWidget = gEntryWidget;
}
if (gComboBoxEntryButtonWidget) {
/* Get the Arrow inside the Button */
buttonChild = GTK_BIN(gComboBoxEntryButtonWidget)->child;
if (GTK_IS_HBOX(buttonChild)) {
/* appears-as-list = FALSE, cell-view = TRUE; the button
* contains an hbox. This hbox is there because ComboBoxEntry
* inherits from ComboBox which needs to place a cell renderer,
* a separator, and an arrow in the button when appears-as-list
* is FALSE. Here the hbox should only contain an arrow, since
* a ComboBoxEntry doesn't need all those widgets in the
* button. */
gtk_container_forall(GTK_CONTAINER(buttonChild),
moz_gtk_get_combo_box_entry_arrow,
NULL);
} else if(GTK_IS_ARROW(buttonChild)) {
/* appears-as-list = TRUE, or cell-view = FALSE;
* the button only contains an arrow */
gComboBoxEntryArrowWidget = buttonChild;
g_object_add_weak_pointer(G_OBJECT(buttonChild), (gpointer)
&gComboBoxEntryArrowWidget);
gtk_widget_realize(gComboBoxEntryArrowWidget);
g_object_set_data(G_OBJECT(gComboBoxEntryArrowWidget),
"transparent-bg-hint", GINT_TO_POINTER(TRUE));
}
} else {
/* Shouldn't be reached with current internal gtk implementation;
* we use a generic toggle button as last resort fallback to avoid
* crashing. */
ensure_toggle_button_widget();
gComboBoxEntryButtonWidget = gToggleButtonWidget;
}
if (!gComboBoxEntryArrowWidget) {
/* Shouldn't be reached with current internal gtk implementation;
* we gButtonArrowWidget as last resort fallback to avoid
* crashing. */
ensure_button_arrow_widget();
gComboBoxEntryArrowWidget = gButtonArrowWidget;
}
return MOZ_GTK_SUCCESS;
}
static gint
ensure_handlebox_widget()
{
if (!gHandleBoxWidget) {
gHandleBoxWidget = gtk_handle_box_new();
setup_widget_prototype(gHandleBoxWidget);
}
return MOZ_GTK_SUCCESS;
}
static gint
ensure_toolbar_widget()
{
if (!gToolbarWidget) {
ensure_handlebox_widget();
gToolbarWidget = gtk_toolbar_new();
gtk_container_add(GTK_CONTAINER(gHandleBoxWidget), gToolbarWidget);
gtk_widget_realize(gToolbarWidget);
g_object_set_data(G_OBJECT(gToolbarWidget), "transparent-bg-hint", GINT_TO_POINTER(TRUE));
}
return MOZ_GTK_SUCCESS;
}
static gint
ensure_toolbar_separator_widget()
{
if (!gToolbarSeparatorWidget) {
ensure_toolbar_widget();
gToolbarSeparatorWidget = GTK_WIDGET(gtk_separator_tool_item_new());
setup_widget_prototype(gToolbarSeparatorWidget);
}
return MOZ_GTK_SUCCESS;
}
static gint
ensure_tooltip_widget()
{
if (!gTooltipWidget) {
gTooltipWidget = gtk_window_new(GTK_WINDOW_POPUP);
gtk_widget_realize(gTooltipWidget);
moz_gtk_set_widget_name(gTooltipWidget);
}
return MOZ_GTK_SUCCESS;
}
static gint
ensure_tab_widget()
{
if (!gTabWidget) {
gTabWidget = gtk_notebook_new();
setup_widget_prototype(gTabWidget);
}
return MOZ_GTK_SUCCESS;
}
static gint
ensure_progress_widget()
{
if (!gProgressWidget) {
gProgressWidget = gtk_progress_bar_new();
setup_widget_prototype(gProgressWidget);
}
return MOZ_GTK_SUCCESS;
}
static gint
ensure_statusbar_widget()
{
if (!gStatusbarWidget) {
gStatusbarWidget = gtk_statusbar_new();
setup_widget_prototype(gStatusbarWidget);
}
return MOZ_GTK_SUCCESS;
}
static gint
ensure_frame_widget()
{
if (!gFrameWidget) {
ensure_statusbar_widget();
gFrameWidget = gtk_frame_new(NULL);
gtk_container_add(GTK_CONTAINER(gStatusbarWidget), gFrameWidget);
gtk_widget_realize(gFrameWidget);
}
return MOZ_GTK_SUCCESS;
}
static gint
ensure_menu_bar_widget()
{
if (!gMenuBarWidget) {
gMenuBarWidget = gtk_menu_bar_new();
setup_widget_prototype(gMenuBarWidget);
}
return MOZ_GTK_SUCCESS;
}
static gint
ensure_menu_bar_item_widget()
{
if (!gMenuBarItemWidget) {
ensure_menu_bar_widget();
gMenuBarItemWidget = gtk_menu_item_new();
gtk_menu_shell_append(GTK_MENU_SHELL(gMenuBarWidget),
gMenuBarItemWidget);
gtk_widget_realize(gMenuBarItemWidget);
g_object_set_data(G_OBJECT(gMenuBarItemWidget),
"transparent-bg-hint", GINT_TO_POINTER(TRUE));
}
return MOZ_GTK_SUCCESS;
}
static gint
ensure_menu_popup_widget()
{
if (!gMenuPopupWidget) {
ensure_menu_bar_item_widget();
gMenuPopupWidget = gtk_menu_new();
gtk_menu_item_set_submenu(GTK_MENU_ITEM(gMenuBarItemWidget),
gMenuPopupWidget);
gtk_widget_realize(gMenuPopupWidget);
g_object_set_data(G_OBJECT(gMenuPopupWidget),
"transparent-bg-hint", GINT_TO_POINTER(TRUE));
}
return MOZ_GTK_SUCCESS;
}
static gint
ensure_menu_item_widget()
{
if (!gMenuItemWidget) {
ensure_menu_popup_widget();
gMenuItemWidget = gtk_menu_item_new_with_label("M");
gtk_menu_shell_append(GTK_MENU_SHELL(gMenuPopupWidget),
gMenuItemWidget);
gtk_widget_realize(gMenuItemWidget);
g_object_set_data(G_OBJECT(gMenuItemWidget),
"transparent-bg-hint", GINT_TO_POINTER(TRUE));
}
return MOZ_GTK_SUCCESS;
}
static gint
ensure_image_menu_item_widget()
{
if (!gImageMenuItemWidget) {
ensure_menu_popup_widget();
gImageMenuItemWidget = gtk_image_menu_item_new();
gtk_menu_shell_append(GTK_MENU_SHELL(gMenuPopupWidget),
gImageMenuItemWidget);
gtk_widget_realize(gImageMenuItemWidget);
g_object_set_data(G_OBJECT(gImageMenuItemWidget),
"transparent-bg-hint", GINT_TO_POINTER(TRUE));
}
return MOZ_GTK_SUCCESS;
}
static gint
ensure_menu_separator_widget()
{
if (!gMenuSeparatorWidget) {
ensure_menu_popup_widget();
gMenuSeparatorWidget = gtk_separator_menu_item_new();
gtk_menu_shell_append(GTK_MENU_SHELL(gMenuPopupWidget),
gMenuSeparatorWidget);
gtk_widget_realize(gMenuSeparatorWidget);
g_object_set_data(G_OBJECT(gMenuSeparatorWidget),
"transparent-bg-hint", GINT_TO_POINTER(TRUE));
}
return MOZ_GTK_SUCCESS;
}
static gint
ensure_check_menu_item_widget()
{
if (!gCheckMenuItemWidget) {
ensure_menu_popup_widget();
gCheckMenuItemWidget = gtk_check_menu_item_new_with_label("M");
gtk_menu_shell_append(GTK_MENU_SHELL(gMenuPopupWidget),
gCheckMenuItemWidget);
gtk_widget_realize(gCheckMenuItemWidget);
g_object_set_data(G_OBJECT(gCheckMenuItemWidget),
"transparent-bg-hint", GINT_TO_POINTER(TRUE));
}
return MOZ_GTK_SUCCESS;
}
static gint
ensure_tree_view_widget()
{
if (!gTreeViewWidget) {
gTreeViewWidget = gtk_tree_view_new();
setup_widget_prototype(gTreeViewWidget);
}
return MOZ_GTK_SUCCESS;
}
static gint
ensure_tree_header_cell_widget()
{
if(!gTreeHeaderCellWidget) {
/*
* Some GTK engines paint the first and last cell
* of a TreeView header with a highlight.
* Since we do not know where our widget will be relative
* to the other buttons in the TreeView header, we must
* paint it as a button that is between two others,
* thus ensuring it is neither the first or last button
* in the header.
* GTK doesn't give us a way to do this explicitly,
* so we must paint with a button that is between two
* others.
*/
GtkTreeViewColumn* firstTreeViewColumn;
GtkTreeViewColumn* lastTreeViewColumn;
ensure_tree_view_widget();
/* Create and append our three columns */
firstTreeViewColumn = gtk_tree_view_column_new();
gtk_tree_view_column_set_title(firstTreeViewColumn, "M");
gtk_tree_view_append_column(GTK_TREE_VIEW(gTreeViewWidget), firstTreeViewColumn);
gMiddleTreeViewColumn = gtk_tree_view_column_new();
gtk_tree_view_column_set_title(gMiddleTreeViewColumn, "M");
gtk_tree_view_append_column(GTK_TREE_VIEW(gTreeViewWidget),
gMiddleTreeViewColumn);
lastTreeViewColumn = gtk_tree_view_column_new();
gtk_tree_view_column_set_title(lastTreeViewColumn, "M");
gtk_tree_view_append_column(GTK_TREE_VIEW(gTreeViewWidget), lastTreeViewColumn);
/* Use the middle column's header for our button */
gTreeHeaderCellWidget = gMiddleTreeViewColumn->button;
gTreeHeaderSortArrowWidget = gMiddleTreeViewColumn->arrow;
g_object_set_data(G_OBJECT(gTreeHeaderCellWidget),
"transparent-bg-hint", GINT_TO_POINTER(TRUE));
g_object_set_data(G_OBJECT(gTreeHeaderSortArrowWidget),
"transparent-bg-hint", GINT_TO_POINTER(TRUE));
}
return MOZ_GTK_SUCCESS;
}
static gint
ensure_expander_widget()
{
if (!gExpanderWidget) {
gExpanderWidget = gtk_expander_new("M");
setup_widget_prototype(gExpanderWidget);
}
return MOZ_GTK_SUCCESS;
}
static gint
ensure_scrolled_window_widget()
{
if (!gScrolledWindowWidget) {
gScrolledWindowWidget = gtk_scrolled_window_new(NULL, NULL);
setup_widget_prototype(gScrolledWindowWidget);
}
return MOZ_GTK_SUCCESS;
}
static GtkStateType
ConvertGtkState(GtkWidgetState* state)
{
if (state->disabled)
return GTK_STATE_INSENSITIVE;
else if (state->depressed)
return (state->inHover ? GTK_STATE_PRELIGHT : GTK_STATE_ACTIVE);
else if (state->inHover)
return (state->active ? GTK_STATE_ACTIVE : GTK_STATE_PRELIGHT);
else
return GTK_STATE_NORMAL;
}
static gint
TSOffsetStyleGCArray(GdkGC** gcs, gint xorigin, gint yorigin)
{
int i;
/* there are 5 gc's in each array, for each of the widget states */
for (i = 0; i < 5; ++i)
gdk_gc_set_ts_origin(gcs[i], xorigin, yorigin);
return MOZ_GTK_SUCCESS;
}
static gint
TSOffsetStyleGCs(GtkStyle* style, gint xorigin, gint yorigin)
{
TSOffsetStyleGCArray(style->fg_gc, xorigin, yorigin);
TSOffsetStyleGCArray(style->bg_gc, xorigin, yorigin);
TSOffsetStyleGCArray(style->light_gc, xorigin, yorigin);
TSOffsetStyleGCArray(style->dark_gc, xorigin, yorigin);
TSOffsetStyleGCArray(style->mid_gc, xorigin, yorigin);
TSOffsetStyleGCArray(style->text_gc, xorigin, yorigin);
TSOffsetStyleGCArray(style->base_gc, xorigin, yorigin);
gdk_gc_set_ts_origin(style->black_gc, xorigin, yorigin);
gdk_gc_set_ts_origin(style->white_gc, xorigin, yorigin);
return MOZ_GTK_SUCCESS;
}
gint
moz_gtk_init()
{
GtkWidgetClass *entry_class;
if (is_initialized)
return MOZ_GTK_SUCCESS;
is_initialized = TRUE;
have_arrow_scaling = (gtk_major_version > 2 ||
(gtk_major_version == 2 && gtk_minor_version >= 12));
/* Add style property to GtkEntry.
* Adding the style property to the normal GtkEntry class means that it
* will work without issues inside GtkComboBox and for Spinbuttons. */
entry_class = g_type_class_ref(GTK_TYPE_ENTRY);
gtk_widget_class_install_style_property(entry_class,
g_param_spec_boolean("honors-transparent-bg-hint",
"Transparent BG enabling flag",
"If TRUE, the theme is able to draw the GtkEntry on non-prefilled background.",
FALSE,
G_PARAM_READWRITE));
return MOZ_GTK_SUCCESS;
}
GdkColormap*
moz_gtk_widget_get_colormap()
{
/* Child widgets inherit the colormap from the GtkWindow. */
ensure_window_widget();
return gtk_widget_get_colormap(gProtoWindow);
}
gint
moz_gtk_checkbox_get_metrics(gint* indicator_size, gint* indicator_spacing)
{
ensure_checkbox_widget();
gtk_widget_style_get (gCheckboxWidget,
"indicator_size", indicator_size,
"indicator_spacing", indicator_spacing,
NULL);
return MOZ_GTK_SUCCESS;
}
gint
moz_gtk_radio_get_metrics(gint* indicator_size, gint* indicator_spacing)
{
ensure_radiobutton_widget();
gtk_widget_style_get (gRadiobuttonWidget,
"indicator_size", indicator_size,
"indicator_spacing", indicator_spacing,
NULL);
return MOZ_GTK_SUCCESS;
}
gint
moz_gtk_widget_get_focus(GtkWidget* widget, gboolean* interior_focus,
gint* focus_width, gint* focus_pad)
{
gtk_widget_style_get (widget,
"interior-focus", interior_focus,
"focus-line-width", focus_width,
"focus-padding", focus_pad,
NULL);
return MOZ_GTK_SUCCESS;
}
gint
moz_gtk_menuitem_get_horizontal_padding(gint* horizontal_padding)
{
ensure_menu_item_widget();
gtk_widget_style_get (gMenuItemWidget,
"horizontal-padding", horizontal_padding,
NULL);
return MOZ_GTK_SUCCESS;
}
gint
moz_gtk_checkmenuitem_get_horizontal_padding(gint* horizontal_padding)
{
ensure_check_menu_item_widget();
gtk_widget_style_get (gCheckMenuItemWidget,
"horizontal-padding", horizontal_padding,
NULL);
return MOZ_GTK_SUCCESS;
}
gint
moz_gtk_button_get_default_overflow(gint* border_top, gint* border_left,
gint* border_bottom, gint* border_right)
{
GtkBorder* default_outside_border;
ensure_button_widget();
gtk_widget_style_get(gButtonWidget,
"default-outside-border", &default_outside_border,
NULL);
if (default_outside_border) {
*border_top = default_outside_border->top;
*border_left = default_outside_border->left;
*border_bottom = default_outside_border->bottom;
*border_right = default_outside_border->right;
gtk_border_free(default_outside_border);
} else {
*border_top = *border_left = *border_bottom = *border_right = 0;
}
return MOZ_GTK_SUCCESS;
}
static gint
moz_gtk_button_get_default_border(gint* border_top, gint* border_left,
gint* border_bottom, gint* border_right)
{
GtkBorder* default_border;
ensure_button_widget();
gtk_widget_style_get(gButtonWidget,
"default-border", &default_border,
NULL);
if (default_border) {
*border_top = default_border->top;
*border_left = default_border->left;
*border_bottom = default_border->bottom;
*border_right = default_border->right;
gtk_border_free(default_border);
} else {
/* see gtkbutton.c */
*border_top = *border_left = *border_bottom = *border_right = 1;
}
return MOZ_GTK_SUCCESS;
}
gint
moz_gtk_splitter_get_metrics(gint orientation, gint* size)
{
if (orientation == GTK_ORIENTATION_HORIZONTAL) {
ensure_hpaned_widget();
gtk_widget_style_get(gHPanedWidget, "handle_size", size, NULL);
} else {
ensure_vpaned_widget();
gtk_widget_style_get(gVPanedWidget, "handle_size", size, NULL);
}
return MOZ_GTK_SUCCESS;
}
gint
moz_gtk_button_get_inner_border(GtkWidget* widget, GtkBorder* inner_border)
{
static const GtkBorder default_inner_border = { 1, 1, 1, 1 };
GtkBorder *tmp_border;
gtk_widget_style_get (widget, "inner-border", &tmp_border, NULL);
if (tmp_border) {
*inner_border = *tmp_border;
gtk_border_free(tmp_border);
}
else
*inner_border = default_inner_border;
return MOZ_GTK_SUCCESS;
}
static gint
moz_gtk_button_paint(GdkDrawable* drawable, GdkRectangle* rect,
GdkRectangle* cliprect, GtkWidgetState* state,
GtkReliefStyle relief, GtkWidget* widget,
GtkTextDirection direction)
{
GtkShadowType shadow_type;
GtkStyle* style = widget->style;
GtkStateType button_state = ConvertGtkState(state);
gint x = rect->x, y=rect->y, width=rect->width, height=rect->height;
gboolean interior_focus;
gint focus_width, focus_pad;
moz_gtk_widget_get_focus(widget, &interior_focus, &focus_width, &focus_pad);
if (WINDOW_IS_MAPPED(drawable)) {
gdk_window_set_back_pixmap(drawable, NULL, TRUE);
gdk_window_clear_area(drawable, cliprect->x, cliprect->y,
cliprect->width, cliprect->height);
}
gtk_widget_set_state(widget, button_state);
gtk_widget_set_direction(widget, direction);
if (state->isDefault)
GTK_WIDGET_SET_FLAGS(widget, GTK_HAS_DEFAULT);
GTK_BUTTON(widget)->relief = relief;
/* Some theme engines love to cause us pain in that gtk_paint_focus is a
no-op on buttons and button-like widgets. They only listen to this flag. */
if (state->focused && !state->disabled)
GTK_WIDGET_SET_FLAGS(widget, GTK_HAS_FOCUS);
if (!interior_focus && state->focused) {
x += focus_width + focus_pad;
y += focus_width + focus_pad;
width -= 2 * (focus_width + focus_pad);
height -= 2 * (focus_width + focus_pad);
}
shadow_type = button_state == GTK_STATE_ACTIVE ||
state->depressed ? GTK_SHADOW_IN : GTK_SHADOW_OUT;
if (state->isDefault && relief == GTK_RELIEF_NORMAL) {
/* handle default borders both outside and inside the button */
gint default_top, default_left, default_bottom, default_right;
moz_gtk_button_get_default_overflow(&default_top, &default_left,
&default_bottom, &default_right);
x -= default_left;
y -= default_top;
width += default_left + default_right;
height += default_top + default_bottom;
gtk_paint_box(style, drawable, GTK_STATE_NORMAL, GTK_SHADOW_IN, cliprect,
widget, "buttondefault", x, y, width, height);
moz_gtk_button_get_default_border(&default_top, &default_left,
&default_bottom, &default_right);
x += default_left;
y += default_top;
width -= (default_left + default_right);
height -= (default_top + default_bottom);
}
if (relief != GTK_RELIEF_NONE || state->depressed ||
(button_state != GTK_STATE_NORMAL &&
button_state != GTK_STATE_INSENSITIVE)) {
TSOffsetStyleGCs(style, x, y);
/* the following line can trigger an assertion (Crux theme)
file ../../gdk/gdkwindow.c: line 1846 (gdk_window_clear_area):
assertion `GDK_IS_WINDOW (window)' failed */
gtk_paint_box(style, drawable, button_state, shadow_type, cliprect,