[gtk+/client-side-windows: 3/284] Add offscreen testcase
- From: Alexander Larsson <alexl src gnome org>
- To: svn-commits-list gnome org
- Subject: [gtk+/client-side-windows: 3/284] Add offscreen testcase
- Date: Thu, 2 Apr 2009 13:57:41 -0400 (EDT)
commit e2d31e14472e9e5d433a9060a9a2f9bc50dc8365
Author: Alexander Larsson <alexl redhat com>
Date: Fri Jan 16 10:39:35 2009 +0100
Add offscreen testcase
---
tests/Makefile.am | 8 +
tests/gtkoffscreenbox.c | 560 +++++++++++++++++++++++++++++++++++++++++++++++
tests/gtkoffscreenbox.h | 52 +++++
tests/testoffscreen.c | 381 ++++++++++++++++++++++++++++++++
4 files changed, 1001 insertions(+), 0 deletions(-)
diff --git a/tests/Makefile.am b/tests/Makefile.am
index 426dea3..66f9aad 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -55,6 +55,7 @@ noinst_PROGRAMS = $(TEST_PROGS) \
testmultiscreen \
testnotebookdnd \
testnouiprint \
+ testoffscreen \
testprint \
testrgb \
testrecentchooser \
@@ -133,6 +134,7 @@ testmultidisplay_DEPENDENCIES = $(TEST_DEPS)
testmultiscreen_DEPENDENCIES = $(TEST_DEPS)
testnotebookdnd_DEPENDENCIES = $(TEST_DEPS)
testnouiprint_DEPENDENCIES = $(TEST_DEPS)
+testoffscreen_DEPENDENCIES = $(TEST_DEPS)
testprint_DEPENDENCIES = $(TEST_DEPS)
testrecentchooser_DEPENDENCIES = $(TEST_DEPS)
testrecentchoosermenu_DEPENDENCIES = $(TEST_DEPS)
@@ -191,6 +193,7 @@ testmultidisplay_LDADD = $(LDADDS)
testmultiscreen_LDADD = $(LDADDS)
testnotebookdnd_LDADD = $(LDADDS)
testnouiprint_LDADD = $(LDADDS)
+testoffscreen_LDADD = $(LDADDS)
testprint_LDADD = $(LDADDS)
testrecentchooser_LDADD = $(LDADDS)
testrecentchoosermenu_LDADD = $(LDADDS)
@@ -317,6 +320,11 @@ testrecentchoosermenu_SOURCES = \
testvolumebutton_SOURCES = \
testvolumebutton.c
+testoffscreen_SOURCES = \
+ gtkoffscreenbox.c \
+ gtkoffscreenbox.h \
+ testoffscreen.c
+
EXTRA_DIST += \
prop-editor.h \
testgtk.1 \
diff --git a/tests/gtkoffscreenbox.c b/tests/gtkoffscreenbox.c
new file mode 100644
index 0000000..fe9b6fb
--- /dev/null
+++ b/tests/gtkoffscreenbox.c
@@ -0,0 +1,560 @@
+/*
+ * gtkoffscreenbox.c
+ */
+
+#include "config.h"
+
+#include <math.h>
+#include <gtk/gtk.h>
+
+#include "gtkoffscreenbox.h"
+
+static void gtk_offscreen_box_realize (GtkWidget *widget);
+static void gtk_offscreen_box_unrealize (GtkWidget *widget);
+static void gtk_offscreen_box_size_request (GtkWidget *widget,
+ GtkRequisition *requisition);
+static void gtk_offscreen_box_size_allocate (GtkWidget *widget,
+ GtkAllocation *allocation);
+static gboolean gtk_offscreen_box_damage (GtkWidget *widget,
+ GdkEventExpose *event);
+static gboolean gtk_offscreen_box_expose (GtkWidget *widget,
+ GdkEventExpose *offscreen);
+
+static void gtk_offscreen_box_add (GtkContainer *container,
+ GtkWidget *child);
+static void gtk_offscreen_box_remove (GtkContainer *container,
+ GtkWidget *widget);
+static void gtk_offscreen_box_forall (GtkContainer *container,
+ gboolean include_internals,
+ GtkCallback callback,
+ gpointer callback_data);
+static GType gtk_offscreen_box_child_type (GtkContainer *container);
+
+static void from_parent (GdkWindow *child,
+ gdouble parent_x,
+ gdouble parent_y,
+ gdouble *child_x,
+ gdouble *child_y);
+static void to_parent (GdkWindow *child,
+ gdouble child_x,
+ gdouble child_y,
+ gdouble *parent_x,
+ gdouble *parent_y);
+
+static const GdkOffscreenChildHooks offscreen_hooks = {
+ from_parent,
+ to_parent,
+};
+
+#define CHILD1_SIZE_SCALE 1.0
+#define CHILD2_SIZE_SCALE 1.0
+
+G_DEFINE_TYPE (GtkOffscreenBox, gtk_offscreen_box, GTK_TYPE_CONTAINER);
+
+static void
+gtk_offscreen_box_class_init (GtkOffscreenBoxClass *klass)
+{
+ GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
+ GtkContainerClass *container_class = GTK_CONTAINER_CLASS (klass);
+
+ widget_class->realize = gtk_offscreen_box_realize;
+ widget_class->unrealize = gtk_offscreen_box_unrealize;
+ widget_class->size_request = gtk_offscreen_box_size_request;
+ widget_class->size_allocate = gtk_offscreen_box_size_allocate;
+ widget_class->expose_event = gtk_offscreen_box_expose;
+
+ g_signal_override_class_closure (g_signal_lookup ("damage-event", GTK_TYPE_WIDGET),
+ GTK_TYPE_OFFSCREEN_BOX,
+ g_cclosure_new (G_CALLBACK (gtk_offscreen_box_damage),
+ NULL, NULL));
+
+ container_class->add = gtk_offscreen_box_add;
+ container_class->remove = gtk_offscreen_box_remove;
+ container_class->forall = gtk_offscreen_box_forall;
+ container_class->child_type = gtk_offscreen_box_child_type;
+}
+
+static void
+gtk_offscreen_box_init (GtkOffscreenBox *offscreen_box)
+{
+ GTK_WIDGET_UNSET_FLAGS (offscreen_box, GTK_NO_WINDOW);
+}
+
+GtkWidget *
+gtk_offscreen_box_new (void)
+{
+ return g_object_new (GTK_TYPE_OFFSCREEN_BOX, NULL);
+}
+
+static void
+gtk_offscreen_box_realize (GtkWidget *widget)
+{
+ GtkOffscreenBox *offscreen_box = GTK_OFFSCREEN_BOX (widget);
+ GdkWindowAttr attributes;
+ gint attributes_mask;
+ gint border_width;
+ GtkRequisition child_requisition;
+ int start_y = 0;
+
+ GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
+
+ border_width = GTK_CONTAINER (widget)->border_width;
+
+ attributes.x = widget->allocation.x + border_width;
+ attributes.y = widget->allocation.y + border_width;
+ attributes.width = widget->allocation.width - 2 * border_width;
+ attributes.height = widget->allocation.height - 2 * border_width;
+ attributes.window_type = GDK_WINDOW_CHILD;
+ attributes.event_mask = gtk_widget_get_events (widget)
+ | GDK_EXPOSURE_MASK
+ | GDK_POINTER_MOTION_MASK
+ | GDK_BUTTON_PRESS_MASK
+ | GDK_BUTTON_RELEASE_MASK
+ | GDK_SCROLL_MASK
+ | GDK_ENTER_NOTIFY_MASK
+ | GDK_LEAVE_NOTIFY_MASK;
+
+ attributes.visual = gtk_widget_get_visual (widget);
+ attributes.colormap = gtk_widget_get_colormap (widget);
+ attributes.wclass = GDK_INPUT_OUTPUT;
+
+ attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
+
+ widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
+ &attributes, attributes_mask);
+ gdk_window_set_user_data (widget->window, widget);
+
+ attributes.window_type = GDK_WINDOW_OFFSCREEN;
+
+ /* Child 1 */
+ attributes.x = attributes.y = 0;
+ if (offscreen_box->child1 && GTK_WIDGET_VISIBLE (offscreen_box->child1))
+ {
+ attributes.width = offscreen_box->child1->allocation.width;
+ attributes.height = offscreen_box->child1->allocation.height;
+ start_y += offscreen_box->child1->allocation.height;
+ }
+ offscreen_box->offscreen_window1 = gdk_window_new (widget->window,
+ &attributes, attributes_mask);
+ gdk_window_set_user_data (offscreen_box->offscreen_window1, widget);
+ if (offscreen_box->child1)
+ gtk_widget_set_parent_window (offscreen_box->child1, offscreen_box->offscreen_window1);
+
+ /* Child 2 */
+ attributes.y = start_y;
+ child_requisition.width = child_requisition.height = 0;
+ if (offscreen_box->child2 && GTK_WIDGET_VISIBLE (offscreen_box->child2))
+ {
+ attributes.width = offscreen_box->child2->allocation.width;
+ attributes.height = offscreen_box->child2->allocation.height;
+ }
+ offscreen_box->offscreen_window2 = gdk_window_new (widget->window,
+ &attributes, attributes_mask);
+ gdk_window_set_offscreen_hooks (offscreen_box->offscreen_window2, &offscreen_hooks);
+ gdk_window_set_user_data (offscreen_box->offscreen_window2, widget);
+ if (offscreen_box->child2)
+ gtk_widget_set_parent_window (offscreen_box->child2, offscreen_box->offscreen_window2);
+
+ widget->style = gtk_style_attach (widget->style, widget->window);
+
+ gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
+ gtk_style_set_background (widget->style, offscreen_box->offscreen_window1, GTK_STATE_NORMAL);
+ gtk_style_set_background (widget->style, offscreen_box->offscreen_window2, GTK_STATE_NORMAL);
+
+ gdk_window_show (offscreen_box->offscreen_window1);
+ gdk_window_show (offscreen_box->offscreen_window2);
+}
+
+static void
+gtk_offscreen_box_unrealize (GtkWidget *widget)
+{
+ GtkOffscreenBox *offscreen_box = GTK_OFFSCREEN_BOX (widget);
+
+ gdk_window_set_user_data (offscreen_box->offscreen_window1, NULL);
+ gdk_window_destroy (offscreen_box->offscreen_window1);
+ offscreen_box->offscreen_window1 = NULL;
+
+ gdk_window_set_user_data (offscreen_box->offscreen_window2, NULL);
+ gdk_window_destroy (offscreen_box->offscreen_window2);
+ offscreen_box->offscreen_window2 = NULL;
+
+ GTK_WIDGET_CLASS (gtk_offscreen_box_parent_class)->unrealize (widget);
+}
+
+static GType
+gtk_offscreen_box_child_type (GtkContainer *container)
+{
+ GtkOffscreenBox *offscreen_box = GTK_OFFSCREEN_BOX (container);
+
+ if (offscreen_box->child1 && offscreen_box->child2)
+ return G_TYPE_NONE;
+
+ return GTK_TYPE_WIDGET;
+}
+
+static void
+gtk_offscreen_box_add (GtkContainer *container,
+ GtkWidget *widget)
+{
+ GtkOffscreenBox *offscreen_box = GTK_OFFSCREEN_BOX (container);
+
+ if (!offscreen_box->child1)
+ gtk_offscreen_box_add1 (offscreen_box, widget);
+ else if (!offscreen_box->child2)
+ gtk_offscreen_box_add2 (offscreen_box, widget);
+ else
+ g_warning ("GtkOffscreenBox cannot have more than 2 children\n");
+}
+
+void
+gtk_offscreen_box_add1 (GtkOffscreenBox *offscreen_box,
+ GtkWidget *child)
+{
+ g_return_if_fail (GTK_IS_OFFSCREEN_BOX (offscreen_box));
+ g_return_if_fail (GTK_IS_WIDGET (child));
+
+ if (offscreen_box->child1 == NULL)
+ {
+ gtk_widget_set_parent_window (child, offscreen_box->offscreen_window1);
+ gtk_widget_set_parent (child, GTK_WIDGET (offscreen_box));
+ offscreen_box->child1 = child;
+ }
+}
+
+void
+gtk_offscreen_box_add2 (GtkOffscreenBox *offscreen_box,
+ GtkWidget *child)
+{
+ g_return_if_fail (GTK_IS_OFFSCREEN_BOX (offscreen_box));
+ g_return_if_fail (GTK_IS_WIDGET (child));
+
+ if (offscreen_box->child2 == NULL)
+ {
+ gtk_widget_set_parent_window (child, offscreen_box->offscreen_window2);
+ gtk_widget_set_parent (child, GTK_WIDGET (offscreen_box));
+ offscreen_box->child2 = child;
+ }
+}
+
+static void
+gtk_offscreen_box_remove (GtkContainer *container,
+ GtkWidget *widget)
+{
+ GtkOffscreenBox *offscreen_box = GTK_OFFSCREEN_BOX (container);
+ gboolean was_visible;
+
+ was_visible = GTK_WIDGET_VISIBLE (widget);
+
+ if (offscreen_box->child1 == widget)
+ {
+ gtk_widget_unparent (widget);
+
+ offscreen_box->child1 = NULL;
+
+ if (was_visible && GTK_WIDGET_VISIBLE (container))
+ gtk_widget_queue_resize (GTK_WIDGET (container));
+ }
+ else if (offscreen_box->child2 == widget)
+ {
+ gtk_widget_unparent (widget);
+
+ offscreen_box->child2 = NULL;
+
+ if (was_visible && GTK_WIDGET_VISIBLE (container))
+ gtk_widget_queue_resize (GTK_WIDGET (container));
+ }
+}
+
+static void
+gtk_offscreen_box_forall (GtkContainer *container,
+ gboolean include_internals,
+ GtkCallback callback,
+ gpointer callback_data)
+{
+ GtkOffscreenBox *offscreen_box = GTK_OFFSCREEN_BOX (container);
+
+ g_return_if_fail (callback != NULL);
+
+ if (offscreen_box->child1)
+ (*callback) (offscreen_box->child1, callback_data);
+ if (offscreen_box->child2)
+ (*callback) (offscreen_box->child2, callback_data);
+}
+
+void
+gtk_offscreen_box_set_angle (GtkOffscreenBox *offscreen_box,
+ gdouble angle)
+{
+ g_return_if_fail (GTK_IS_OFFSCREEN_BOX (offscreen_box));
+
+ offscreen_box->angle = angle;
+ gtk_widget_queue_draw (GTK_WIDGET (offscreen_box));
+
+ /* TODO: Really needs to resent pointer events if over the rotated window */
+}
+
+
+static void
+gtk_offscreen_box_size_request (GtkWidget *widget,
+ GtkRequisition *requisition)
+{
+ GtkOffscreenBox *offscreen_box = GTK_OFFSCREEN_BOX (widget);
+ int w, h;
+
+ w = 0;
+ h = 0;
+
+ if (offscreen_box->child1 && GTK_WIDGET_VISIBLE (offscreen_box->child1))
+ {
+ GtkRequisition child_requisition;
+
+ gtk_widget_size_request (offscreen_box->child1, &child_requisition);
+
+ w = MAX (w, CHILD1_SIZE_SCALE * child_requisition.width);
+ h += CHILD1_SIZE_SCALE * child_requisition.height;
+ }
+
+ if (offscreen_box->child2 && GTK_WIDGET_VISIBLE (offscreen_box->child2))
+ {
+ GtkRequisition child_requisition;
+
+ gtk_widget_size_request (offscreen_box->child2, &child_requisition);
+
+ w = MAX (w, CHILD2_SIZE_SCALE * child_requisition.width);
+ h += CHILD2_SIZE_SCALE * child_requisition.height;
+ }
+
+ requisition->width = GTK_CONTAINER (widget)->border_width * 2 + w;
+ requisition->height = GTK_CONTAINER (widget)->border_width * 2 + h;
+}
+
+static void
+gtk_offscreen_box_size_allocate (GtkWidget *widget,
+ GtkAllocation *allocation)
+{
+ GtkOffscreenBox *offscreen_box;
+ gint border_width;
+ gint start_y;
+
+ widget->allocation = *allocation;
+ offscreen_box = GTK_OFFSCREEN_BOX (widget);
+
+ border_width = GTK_CONTAINER (widget)->border_width;
+
+ if (GTK_WIDGET_REALIZED (widget))
+ gdk_window_move_resize (widget->window,
+ allocation->x + border_width,
+ allocation->y + border_width,
+ allocation->width - border_width * 2,
+ allocation->height - border_width * 2);
+
+ start_y = 0;
+
+ if (offscreen_box->child1 && GTK_WIDGET_VISIBLE (offscreen_box->child1))
+ {
+ GtkRequisition child_requisition;
+ GtkAllocation child_allocation;
+
+ gtk_widget_get_child_requisition (offscreen_box->child1, &child_requisition);
+ child_allocation.x = child_requisition.width * (CHILD1_SIZE_SCALE - 1.0) / 2;
+ child_allocation.y = start_y + child_requisition.height * (CHILD1_SIZE_SCALE - 1.0) / 2;
+ child_allocation.width = MAX (1, (gint) widget->allocation.width - 2 * border_width);
+ child_allocation.height = child_requisition.height;
+
+ start_y += CHILD1_SIZE_SCALE * child_requisition.height;
+
+ if (GTK_WIDGET_REALIZED (widget))
+ gdk_window_move_resize (offscreen_box->offscreen_window1,
+ child_allocation.x,
+ child_allocation.y,
+ child_allocation.width,
+ child_allocation.height);
+
+ child_allocation.x = child_allocation.y = 0;
+ gtk_widget_size_allocate (offscreen_box->child1, &child_allocation);
+ }
+
+ if (offscreen_box->child2 && GTK_WIDGET_VISIBLE (offscreen_box->child2))
+ {
+ GtkRequisition child_requisition;
+ GtkAllocation child_allocation;
+
+ gtk_widget_get_child_requisition (offscreen_box->child2, &child_requisition);
+ child_allocation.x = child_requisition.width * (CHILD2_SIZE_SCALE - 1.0) / 2;
+ child_allocation.y = start_y + child_requisition.height * (CHILD2_SIZE_SCALE - 1.0) / 2;
+ child_allocation.width = MAX (1, (gint) widget->allocation.width - 2 * border_width);
+ child_allocation.height = child_requisition.height;
+
+ start_y += CHILD2_SIZE_SCALE * child_requisition.height;
+
+ if (GTK_WIDGET_REALIZED (widget))
+ gdk_window_move_resize (offscreen_box->offscreen_window2,
+ child_allocation.x,
+ child_allocation.y,
+ child_allocation.width,
+ child_allocation.height);
+
+ child_allocation.x = child_allocation.y = 0;
+ gtk_widget_size_allocate (offscreen_box->child2, &child_allocation);
+ }
+}
+
+static gboolean
+gtk_offscreen_box_damage (GtkWidget *widget,
+ GdkEventExpose *event)
+{
+ gdk_window_invalidate_rect (widget->window, NULL, FALSE);
+
+ return TRUE;
+}
+
+static gboolean
+gtk_offscreen_box_expose (GtkWidget *widget,
+ GdkEventExpose *event)
+{
+ GtkOffscreenBox *offscreen_box = GTK_OFFSCREEN_BOX (widget);
+
+ if (GTK_WIDGET_DRAWABLE (widget))
+ {
+ if (event->window == widget->window)
+ {
+ GdkPixmap *pixmap;
+ GtkAllocation child_area;
+ cairo_t *cr;
+ int start_y = 0;
+
+ if (offscreen_box->child1 && GTK_WIDGET_VISIBLE (offscreen_box->child1))
+ {
+ pixmap = gdk_window_get_offscreen_pixmap (offscreen_box->offscreen_window1);
+ child_area = offscreen_box->child1->allocation;
+
+ cr = gdk_cairo_create (widget->window);
+
+ gdk_cairo_set_source_pixmap (cr, pixmap, 0, 0);
+ cairo_paint (cr);
+
+ cairo_destroy (cr);
+
+ start_y += child_area.height;
+ }
+
+ if (offscreen_box->child2 && GTK_WIDGET_VISIBLE (offscreen_box->child2))
+ {
+ gint w, h;
+
+ pixmap = gdk_window_get_offscreen_pixmap (offscreen_box->offscreen_window2);
+ child_area = offscreen_box->child2->allocation;
+
+ cr = gdk_cairo_create (widget->window);
+
+ /* transform */
+ cairo_translate (cr, 0, start_y);
+ cairo_translate (cr, child_area.width / 2, child_area.height / 2);
+ cairo_rotate (cr, offscreen_box->angle);
+ cairo_translate (cr, -child_area.width / 2, -child_area.height / 2);
+
+ /* clip */
+ gdk_drawable_get_size (pixmap, &w, &h);
+ cairo_rectangle (cr, 0, 0, w, h);
+ cairo_clip (cr);
+
+ /* paint */
+ gdk_cairo_set_source_pixmap (cr, pixmap, 0, 0);
+ cairo_paint (cr);
+
+ cairo_destroy (cr);
+ }
+ }
+ else if (event->window == offscreen_box->offscreen_window1)
+ {
+ gtk_paint_flat_box (widget->style, event->window,
+ GTK_STATE_NORMAL, GTK_SHADOW_NONE,
+ &event->area, widget, "blah",
+ 0, 0, -1, -1);
+
+ if (offscreen_box->child1)
+ gtk_container_propagate_expose (GTK_CONTAINER (widget),
+ offscreen_box->child1,
+ event);
+ }
+ else if (event->window == offscreen_box->offscreen_window2)
+ {
+ gtk_paint_flat_box (widget->style, event->window,
+ GTK_STATE_NORMAL, GTK_SHADOW_NONE,
+ &event->area, widget, "blah",
+ 0, 0, -1, -1);
+
+ if (offscreen_box->child2)
+ gtk_container_propagate_expose (GTK_CONTAINER (widget),
+ offscreen_box->child2,
+ event);
+ }
+ }
+
+ return FALSE;
+}
+
+static void
+from_parent (GdkWindow *child,
+ gdouble parent_x,
+ gdouble parent_y,
+ gdouble *child_x,
+ gdouble *child_y)
+{
+ GtkOffscreenBox *offscreen_box = NULL;
+ GtkAllocation child2_area;
+ gpointer window_data;
+ double pos_x, pos_y, rot_x, rot_y, start_y, angle;
+ GdkWindow *parent;
+
+ parent = gdk_window_get_parent (child);
+ gdk_window_get_user_data (parent, &window_data);
+ offscreen_box = window_data;
+
+ start_y = offscreen_box->child1 ? offscreen_box->child1->allocation.height : 0;
+ child2_area = offscreen_box->child2->allocation;
+
+ pos_x = parent_x - child2_area.width / 2;
+ pos_y = parent_y - start_y - child2_area.height / 2;
+
+ angle = -offscreen_box->angle;
+ rot_x = pos_x * cos (angle) - pos_y * sin (angle);
+ rot_y = pos_x * sin (angle) + pos_y * cos (angle);
+
+ *child_x = rot_x + child2_area.width / 2;
+ *child_y = rot_y + child2_area.height / 2;
+}
+
+static void
+to_parent (GdkWindow *child,
+ gdouble child_x,
+ gdouble child_y,
+ gdouble *parent_x,
+ gdouble *parent_y)
+{
+ GtkOffscreenBox *offscreen_box = NULL;
+ GtkAllocation child2_area;
+ gpointer window_data;
+ gdouble pos_x, pos_y, rot_x, rot_y, start_y, angle;
+ GdkWindow *parent;
+
+ parent = gdk_window_get_parent (child);
+ gdk_window_get_user_data (parent, &window_data);
+ offscreen_box = window_data;
+
+ start_y = offscreen_box->child1 ? offscreen_box->child1->allocation.height : 0;
+ child2_area = offscreen_box->child2->allocation;
+
+ pos_x = child_x - child2_area.width / 2;
+ pos_y = child_y - child2_area.height / 2;
+
+ angle = offscreen_box->angle;
+ rot_x = pos_x * cos (angle) - pos_y * sin (angle);
+ rot_y = pos_x * sin (angle) + pos_y * cos (angle);
+
+ rot_x += child2_area.width / 2;
+ rot_y += child2_area.height / 2;
+
+ *parent_x = rot_x;
+ *parent_y = rot_y + start_y;
+}
diff --git a/tests/gtkoffscreenbox.h b/tests/gtkoffscreenbox.h
new file mode 100644
index 0000000..aa1d15d
--- /dev/null
+++ b/tests/gtkoffscreenbox.h
@@ -0,0 +1,52 @@
+#ifndef __GTK_OFFSCREEN_BOX_H__
+#define __GTK_OFFSCREEN_BOX_H__
+
+
+#include <gdk/gdk.h>
+#include <gtk/gtk.h>
+
+
+G_BEGIN_DECLS
+
+#define GTK_TYPE_OFFSCREEN_BOX (gtk_offscreen_box_get_type ())
+#define GTK_OFFSCREEN_BOX(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_OFFSCREEN_BOX, GtkOffscreenBox))
+#define GTK_OFFSCREEN_BOX_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_OFFSCREEN_BOX, GtkOffscreenBoxClass))
+#define GTK_IS_OFFSCREEN_BOX(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_OFFSCREEN_BOX))
+#define GTK_IS_OFFSCREEN_BOX_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_OFFSCREEN_BOX))
+#define GTK_OFFSCREEN_BOX_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_OFFSCREEN_BOX, GtkOffscreenBoxClass))
+
+typedef struct _GtkOffscreenBox GtkOffscreenBox;
+typedef struct _GtkOffscreenBoxClass GtkOffscreenBoxClass;
+
+struct _GtkOffscreenBox
+{
+ GtkContainer container;
+
+ GtkWidget *child1;
+ GtkWidget *child2;
+
+ GdkWindow *offscreen_window1;
+ GdkWindow *offscreen_window2;
+
+ gdouble angle;
+};
+
+struct _GtkOffscreenBoxClass
+{
+ GtkBinClass parent_class;
+};
+
+GType gtk_offscreen_box_get_type (void) G_GNUC_CONST;
+GtkWidget* gtk_offscreen_box_new (void);
+void gtk_offscreen_box_add1 (GtkOffscreenBox *offscreen,
+ GtkWidget *child);
+void gtk_offscreen_box_add2 (GtkOffscreenBox *offscreen,
+ GtkWidget *child);
+void gtk_offscreen_box_set_angle (GtkOffscreenBox *offscreen,
+ double angle);
+
+
+
+G_END_DECLS
+
+#endif /* __GTK_OFFSCREEN_BOX_H__ */
diff --git a/tests/testoffscreen.c b/tests/testoffscreen.c
new file mode 100644
index 0000000..f332d62
--- /dev/null
+++ b/tests/testoffscreen.c
@@ -0,0 +1,381 @@
+/*
+ * testoffscreen.c
+ */
+
+#undef GTK_DISABLE_DEPRECATED
+
+#include <math.h>
+#include <gtk/gtk.h>
+#include "gtkoffscreenbox.h"
+
+
+static void
+combo_changed_cb (GtkWidget *combo,
+ gpointer data)
+{
+ GtkWidget *label = GTK_WIDGET (data);
+ gint active;
+
+ active = gtk_combo_box_get_active (GTK_COMBO_BOX (combo));
+
+ gtk_label_set_ellipsize (GTK_LABEL (label), (PangoEllipsizeMode)active);
+}
+
+static gboolean
+layout_expose_handler (GtkWidget *widget,
+ GdkEventExpose *event)
+{
+ GtkLayout *layout = GTK_LAYOUT (widget);
+
+ gint i,j;
+ gint imin, imax, jmin, jmax;
+
+ if (event->window != layout->bin_window)
+ return FALSE;
+
+ imin = (event->area.x) / 10;
+ imax = (event->area.x + event->area.width + 9) / 10;
+
+ jmin = (event->area.y) / 10;
+ jmax = (event->area.y + event->area.height + 9) / 10;
+
+ for (i = imin; i < imax; i++)
+ for (j = jmin; j < jmax; j++)
+ if ((i + j) % 2)
+ gdk_draw_rectangle (layout->bin_window,
+ widget->style->black_gc,
+ TRUE,
+ 10 * i, 10 * j,
+ 1 + i % 10, 1 + j % 10);
+
+ return FALSE;
+}
+
+static gboolean
+scroll_layout (gpointer data)
+{
+ GtkWidget *layout = data;
+ GtkAdjustment *adj;
+
+ adj = gtk_layout_get_hadjustment (GTK_LAYOUT (layout));
+ gtk_adjustment_set_value (adj,
+ gtk_adjustment_get_value (adj) + 5.0);
+ return TRUE;
+}
+
+static guint layout_timeout;
+
+static void
+create_layout (GtkWidget *vbox)
+{
+ GtkWidget *layout;
+ GtkWidget *scrolledwindow;
+ GtkWidget *button;
+ gchar buf[16];
+ gint i, j;
+
+ scrolledwindow = gtk_scrolled_window_new (NULL, NULL);
+ gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (scrolledwindow),
+ GTK_SHADOW_IN);
+ gtk_scrolled_window_set_placement (GTK_SCROLLED_WINDOW (scrolledwindow),
+ GTK_CORNER_TOP_RIGHT);
+
+ gtk_box_pack_start (GTK_BOX (vbox), scrolledwindow, TRUE, TRUE, 0);
+
+ layout = gtk_layout_new (NULL, NULL);
+ gtk_container_add (GTK_CONTAINER (scrolledwindow), layout);
+
+ /* We set step sizes here since GtkLayout does not set
+ * them itself.
+ */
+ GTK_LAYOUT (layout)->hadjustment->step_increment = 10.0;
+ GTK_LAYOUT (layout)->vadjustment->step_increment = 10.0;
+
+ gtk_widget_set_events (layout, GDK_EXPOSURE_MASK);
+ g_signal_connect (layout, "expose_event",
+ G_CALLBACK (layout_expose_handler),
+ NULL);
+
+ gtk_layout_set_size (GTK_LAYOUT (layout), 1600, 128000);
+
+ for (i = 0 ; i < 16 ; i++)
+ for (j = 0 ; j < 16 ; j++)
+ {
+ g_snprintf (buf, sizeof (buf), "Button %d, %d", i, j);
+
+ if ((i + j) % 2)
+ button = gtk_button_new_with_label (buf);
+ else
+ button = gtk_label_new (buf);
+
+ gtk_layout_put (GTK_LAYOUT (layout), button,
+ j * 100, i * 100);
+ }
+
+ for (i = 16; i < 1280; i++)
+ {
+ g_snprintf (buf, sizeof (buf), "Button %d, %d", i, 0);
+
+ if (i % 2)
+ button = gtk_button_new_with_label (buf);
+ else
+ button = gtk_label_new (buf);
+
+ gtk_layout_put (GTK_LAYOUT (layout), button,
+ 0, i * 100);
+ }
+
+ layout_timeout = g_timeout_add (1000, scroll_layout, layout);
+}
+
+static void
+create_treeview (GtkWidget *vbox)
+{
+ GtkWidget *scrolledwindow;
+ GtkListStore *store;
+ GtkWidget *tree_view;
+ GSList *stock_ids;
+ GSList *list;
+
+ scrolledwindow = gtk_scrolled_window_new (NULL, NULL);
+ gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (scrolledwindow),
+ GTK_SHADOW_IN);
+
+ gtk_box_pack_start (GTK_BOX (vbox), scrolledwindow, TRUE, TRUE, 0);
+
+ store = gtk_list_store_new (2, G_TYPE_STRING, G_TYPE_STRING);
+ tree_view = gtk_tree_view_new_with_model (GTK_TREE_MODEL (store));
+ g_object_unref (store);
+
+ gtk_container_add (GTK_CONTAINER (scrolledwindow), tree_view);
+
+ gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (tree_view), -1,
+ "Icon",
+ gtk_cell_renderer_pixbuf_new (),
+ "stock-id", 0,
+ NULL);
+ gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (tree_view), -1,
+ "Label",
+ gtk_cell_renderer_text_new (),
+ "text", 1,
+ NULL);
+
+ stock_ids = gtk_stock_list_ids ();
+
+ for (list = stock_ids; list; list = g_slist_next (list))
+ {
+ const gchar *stock_id = list->data;
+ GtkStockItem item;
+
+ if (gtk_stock_lookup (stock_id, &item))
+ {
+ gtk_list_store_insert_with_values (store, NULL, -1,
+ 0, item.stock_id,
+ 1, item.label,
+ -1);
+ }
+ }
+
+ g_slist_foreach (stock_ids, (GFunc) g_free, NULL);
+ g_slist_free (stock_ids);
+}
+
+static GtkWidget *
+create_widgets (void)
+{
+ GtkWidget *main_hbox, *main_vbox;
+ GtkWidget *vbox, *hbox, *label, *combo, *entry, *button, *cb;
+ GtkWidget *sw, *text_view;
+ GList *cbitems = NULL;
+
+ main_vbox = gtk_vbox_new (0, FALSE);
+
+ main_hbox = gtk_hbox_new (0, FALSE);
+ gtk_box_pack_start (GTK_BOX (main_vbox), main_hbox, TRUE, TRUE, 0);
+
+ vbox = gtk_vbox_new (0, FALSE);
+ gtk_box_pack_start (GTK_BOX (main_hbox), vbox, TRUE, TRUE, 0);
+
+ hbox = gtk_hbox_new (0, FALSE);
+ gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
+
+ label = gtk_label_new ("This label may be ellipsized\nto make it fit.");
+ gtk_box_pack_start (GTK_BOX (hbox), label, TRUE, TRUE, 0);
+
+ combo = gtk_combo_box_new_text ();
+ gtk_combo_box_append_text (GTK_COMBO_BOX (combo), "NONE");
+ gtk_combo_box_append_text (GTK_COMBO_BOX (combo), "START");
+ gtk_combo_box_append_text (GTK_COMBO_BOX (combo), "MIDDLE");
+ gtk_combo_box_append_text (GTK_COMBO_BOX (combo), "END");
+ gtk_combo_box_set_active (GTK_COMBO_BOX (combo), 0);
+ gtk_box_pack_start (GTK_BOX (hbox), combo, TRUE, TRUE, 0);
+
+ g_signal_connect (combo, "changed",
+ G_CALLBACK (combo_changed_cb),
+ label);
+
+ entry = gtk_entry_new ();
+ gtk_entry_set_text (GTK_ENTRY (entry), "an entry - lots of text.... lots of text.... lots of text.... lots of text.... ");
+ gtk_box_pack_start (GTK_BOX (vbox), entry, FALSE, FALSE, 0);
+
+ label = gtk_label_new ("Label after entry.");
+ gtk_label_set_selectable (GTK_LABEL (label), TRUE);
+ gtk_box_pack_start (GTK_BOX (vbox), label, TRUE, TRUE, 0);
+
+ button = gtk_button_new_with_label ("Button");
+ gtk_box_pack_start (GTK_BOX (vbox), button, TRUE, TRUE, 0);
+
+ button = gtk_check_button_new_with_mnemonic ("_Check button");
+ gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
+
+ cb = gtk_combo_new ();
+ cbitems = g_list_append (cbitems, "item0");
+ cbitems = g_list_append (cbitems, "item1 item1");
+ cbitems = g_list_append (cbitems, "item2 item2 item2");
+ gtk_combo_set_popdown_strings (GTK_COMBO (cb), cbitems);
+ gtk_entry_set_text (GTK_ENTRY (GTK_COMBO (cb)->entry), "hello world â?¥ foo");
+ gtk_editable_select_region (GTK_EDITABLE (GTK_COMBO (cb)->entry),
+ 0, -1);
+ gtk_box_pack_start (GTK_BOX (vbox), cb, TRUE, TRUE, 0);
+
+ sw = gtk_scrolled_window_new (NULL, NULL);
+ gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
+ GTK_POLICY_AUTOMATIC,
+ GTK_POLICY_AUTOMATIC);
+ text_view = gtk_text_view_new ();
+ gtk_box_pack_start (GTK_BOX (vbox), sw, TRUE, TRUE, 0);
+ gtk_container_add (GTK_CONTAINER (sw), text_view);
+
+ create_layout (vbox);
+
+ create_treeview (main_hbox);
+
+ return main_vbox;
+}
+
+
+static void
+scale_changed (GtkRange *range,
+ GtkOffscreenBox *offscreen_box)
+{
+ gtk_offscreen_box_set_angle (offscreen_box, gtk_range_get_value (range));
+}
+
+static GtkWidget *scale = NULL;
+
+static void
+remove_clicked (GtkButton *button,
+ GtkWidget *widget)
+{
+ gtk_widget_destroy (widget);
+ g_source_remove (layout_timeout);
+
+ gtk_widget_set_sensitive (GTK_WIDGET (button), FALSE);
+ gtk_widget_set_sensitive (scale, FALSE);
+}
+
+int
+main (int argc,
+ char *argv[])
+{
+ GtkWidget *window, *widget, *vbox, *button;
+ GtkWidget *offscreen = NULL;
+ gboolean use_offscreen;
+
+ gtk_init (&argc, &argv);
+
+ use_offscreen = argc == 1;
+
+ window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+ gtk_window_set_default_size (GTK_WINDOW (window), 300,300);
+
+ g_signal_connect (window, "destroy",
+ G_CALLBACK (gtk_main_quit),
+ NULL);
+
+ vbox = gtk_vbox_new (0, FALSE);
+ gtk_container_add (GTK_CONTAINER (window), vbox);
+
+ scale = gtk_hscale_new_with_range (0,
+ M_PI * 2,
+ 0.01);
+ gtk_box_pack_start (GTK_BOX (vbox), scale, FALSE, FALSE, 0);
+
+ button = gtk_button_new_with_label ("Remove child 2");
+ gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
+
+ if (use_offscreen)
+ {
+ offscreen = gtk_offscreen_box_new ();
+
+ g_signal_connect (scale, "value_changed",
+ G_CALLBACK (scale_changed),
+ offscreen);
+ }
+ else
+ {
+ offscreen = gtk_vpaned_new ();
+ }
+
+ gtk_box_pack_start (GTK_BOX (vbox), offscreen, TRUE, TRUE, 0);
+
+ widget = create_widgets ();
+ if (use_offscreen)
+ gtk_offscreen_box_add1 (GTK_OFFSCREEN_BOX (offscreen),
+ widget);
+ else
+ gtk_paned_add1 (GTK_PANED (offscreen), widget);
+
+ widget = create_widgets ();
+ if (1)
+ {
+ GtkWidget *widget2, *box2, *offscreen2;
+
+ offscreen2 = gtk_offscreen_box_new ();
+ gtk_box_pack_start (GTK_BOX (widget), offscreen2, FALSE, FALSE, 0);
+
+ g_signal_connect (scale, "value_changed",
+ G_CALLBACK (scale_changed),
+ offscreen2);
+
+ box2 = gtk_vbox_new (FALSE, 0);
+ gtk_offscreen_box_add2 (GTK_OFFSCREEN_BOX (offscreen2), box2);
+
+ widget2 = gtk_button_new_with_label ("Offscreen in offscreen");
+ gtk_box_pack_start (GTK_BOX (box2), widget2, FALSE, FALSE, 0);
+
+ widget2 = gtk_entry_new ();
+ gtk_entry_set_text (GTK_ENTRY (widget2), "Offscreen in offscreen");
+ gtk_box_pack_start (GTK_BOX (box2), widget2, FALSE, FALSE, 0);
+ }
+
+ if (use_offscreen)
+ gtk_offscreen_box_add2 (GTK_OFFSCREEN_BOX (offscreen), widget);
+ else
+ gtk_paned_add2 (GTK_PANED (offscreen), widget);
+
+ gtk_widget_show_all (window);
+
+ g_signal_connect (G_OBJECT (button), "clicked",
+ G_CALLBACK (remove_clicked),
+ widget);
+
+ /* redirect */
+ if (0)
+ {
+ GtkWidget *redirect_win;
+
+ redirect_win = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+ gtk_window_set_default_size (GTK_WINDOW (redirect_win), 400,400);
+ gtk_widget_show (redirect_win);
+ gtk_widget_realize (redirect_win);
+ gtk_widget_realize (window);
+ gdk_window_redirect_to_drawable (window->window,
+ GDK_DRAWABLE (redirect_win->window),
+ 0, 0, 0, 0, -1, -1);
+ }
+
+ gtk_main ();
+
+ return 0;
+}
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