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livetrax/libs/clearlooks/widget-information.c
Paul Davis 449aab3c46 rollback to 3428, before the mysterious removal of libs/* at 3431/3432
git-svn-id: svn://localhost/ardour2/branches/3.0@3435 d708f5d6-7413-0410-9779-e7cbd77b26cf
2008-06-02 21:41:35 +00:00

313 lines
6.4 KiB
C

#include <gtk/gtk.h>
#include "general-support.h"
#include "widget-information.h"
#include <math.h>
#include <string.h>
/* Widget Type Lookups/Macros
Based on/modified from functions in
Smooth-Engine.
*/
gboolean
ge_object_is_a (const GObject * object, const gchar * type_name)
{
gboolean result = FALSE;
if ((object))
{
GType tmp = g_type_from_name (type_name);
if (tmp)
result = g_type_check_instance_is_a ((GTypeInstance *) object, tmp);
}
return result;
}
gboolean
ge_is_combo_box_entry (GtkWidget * widget)
{
gboolean result = FALSE;
if ((widget) && (widget->parent))
{
if (GE_IS_COMBO_BOX_ENTRY (widget->parent))
result = TRUE;
else
result = ge_is_combo_box_entry (widget->parent);
}
return result;
}
static gboolean
ge_combo_box_is_using_list (GtkWidget * widget)
{
gboolean result = FALSE;
if (GE_IS_COMBO_BOX (widget))
{
gboolean *tmp = NULL;
gtk_widget_style_get (widget, "appears-as-list", &result, NULL);
if (tmp)
result = *tmp;
}
return result;
}
gboolean
ge_is_combo_box (GtkWidget * widget, gboolean as_list)
{
gboolean result = FALSE;
if ((widget) && (widget->parent))
{
if (GE_IS_COMBO_BOX (widget->parent))
{
if (as_list)
result = (ge_combo_box_is_using_list(widget->parent));
else
result = (!ge_combo_box_is_using_list(widget->parent));
}
else
result = ge_is_combo_box (widget->parent, as_list);
}
return result;
}
gboolean
ge_is_combo (GtkWidget * widget)
{
gboolean result = FALSE;
if ((widget) && (widget->parent))
{
if (GE_IS_COMBO (widget->parent))
result = TRUE;
else
result = ge_is_combo (widget->parent);
}
return result;
}
gboolean
ge_is_in_combo_box (GtkWidget * widget)
{
return ((ge_is_combo (widget) || ge_is_combo_box (widget, TRUE) || ge_is_combo_box_entry (widget)));
}
gboolean
ge_is_toolbar_item (GtkWidget * widget)
{
gboolean result = FALSE;
if ((widget) && (widget->parent)) {
if ((GE_IS_BONOBO_TOOLBAR (widget->parent))
|| (GE_IS_BONOBO_DOCK_ITEM (widget->parent))
|| (GE_IS_EGG_TOOLBAR (widget->parent))
|| (GE_IS_TOOLBAR (widget->parent))
|| (GE_IS_HANDLE_BOX (widget->parent)))
result = TRUE;
else
result = ge_is_toolbar_item (widget->parent);
}
return result;
}
gboolean
ge_is_panel_widget_item (GtkWidget * widget)
{
gboolean result = FALSE;
if ((widget) && (widget->parent))
{
if (GE_IS_PANEL_WIDGET (widget->parent))
result = TRUE;
else
result = ge_is_panel_widget_item (widget->parent);
}
return result;
}
gboolean
ge_is_bonobo_dock_item (GtkWidget * widget)
{
gboolean result = FALSE;
if ((widget))
{
if (GE_IS_BONOBO_DOCK_ITEM(widget) || GE_IS_BONOBO_DOCK_ITEM (widget->parent))
result = TRUE;
else if (GE_IS_BOX(widget) || GE_IS_BOX(widget->parent))
{
GtkContainer *box = GE_IS_BOX(widget)?GTK_CONTAINER(widget):GTK_CONTAINER(widget->parent);
GList *children = NULL, *child = NULL;
children = gtk_container_get_children(box);
for (child = g_list_first(children); child; child = g_list_next(child))
{
if (GE_IS_BONOBO_DOCK_ITEM_GRIP(child->data))
{
result = TRUE;
child = NULL;
}
}
if (children)
g_list_free(children);
}
}
return result;
}
static GtkWidget *
ge_find_combo_box_entry_widget (GtkWidget * widget)
{
GtkWidget *result = NULL;
if (widget)
{
if (GE_IS_COMBO_BOX_ENTRY (widget))
result = widget;
else
result = ge_find_combo_box_entry_widget (widget->parent);
}
return result;
}
static GtkWidget *
ge_find_combo_box_widget (GtkWidget * widget, gboolean as_list)
{
GtkWidget *result = NULL;
if (widget)
{
if (GE_IS_COMBO_BOX (widget))
{
if (as_list)
result = (ge_combo_box_is_using_list(widget))?widget:NULL;
else
result = (!ge_combo_box_is_using_list(widget))?widget:NULL;
}
else
result = ge_find_combo_box_widget (widget->parent, as_list);
}
return result;
}
static GtkWidget *
ge_find_combo_widget (GtkWidget * widget)
{
GtkWidget *result = NULL;
if (widget)
{
if (GE_IS_COMBO (widget))
result = widget;
else
result = ge_find_combo_widget(widget->parent);
}
return result;
}
GtkWidget*
ge_find_combo_box_widget_parent (GtkWidget * widget)
{
GtkWidget *result = NULL;
if (!result)
result = ge_find_combo_widget(widget);
if (!result)
result = ge_find_combo_box_widget(widget, TRUE);
if (!result)
result = ge_find_combo_box_entry_widget(widget);
return result;
}
/***********************************************
* option_menu_get_props -
*
* Find Option Menu Size and Spacing
*
* Taken from Smooth
***********************************************/
void
ge_option_menu_get_props (GtkWidget * widget,
GtkRequisition * indicator_size,
GtkBorder * indicator_spacing)
{
GtkRequisition default_size = { 9, 5 };
GtkBorder default_spacing = { 7, 5, 2, 2 };
GtkRequisition *tmp_size = NULL;
GtkBorder *tmp_spacing = NULL;
if ((widget) && GE_IS_OPTION_MENU(widget))
gtk_widget_style_get (widget,
"indicator_size", &tmp_size,
"indicator_spacing", &tmp_spacing, NULL);
if (tmp_size)
{
*indicator_size = *tmp_size;
gtk_requisition_free (tmp_size);
}
else
*indicator_size = default_size;
if (tmp_spacing)
{
*indicator_spacing = *tmp_spacing;
gtk_border_free (tmp_spacing);
}
else
*indicator_spacing = default_spacing;
}
void
ge_button_get_default_border (GtkWidget *widget,
GtkBorder *border)
{
GtkBorder default_border = {1, 1, 1, 1};
GtkBorder *tmp_border = NULL;
if (widget && GE_IS_BUTTON (widget))
gtk_widget_style_get (widget, "default-border", &tmp_border, NULL);
if (tmp_border)
{
*border = *tmp_border;
gtk_border_free (tmp_border);
}
else
{
*border = default_border;
}
}
gboolean
ge_widget_is_ltr (GtkWidget *widget)
{
GtkTextDirection dir = GTK_TEXT_DIR_NONE;
if (GE_IS_WIDGET (widget))
dir = gtk_widget_get_direction (widget);
if (dir == GTK_TEXT_DIR_NONE)
dir = gtk_widget_get_default_direction ();
if (dir == GTK_TEXT_DIR_RTL)
return FALSE;
else
return TRUE;
}