It's all in the changelog. Well, almost all.
-owt
This commit is contained in:
Owen Taylor
189
tests/testgtk.c
189
tests/testgtk.c
@ -2763,6 +2763,194 @@ create_gamma_curve ()
|
||||
++count;
|
||||
}
|
||||
|
||||
static int scroll_test_pos = 0.0;
|
||||
static GdkGC *scroll_test_gc = NULL;
|
||||
|
||||
static gint
|
||||
scroll_test_expose (GtkWidget *widget, GdkEventExpose *event,
|
||||
GtkAdjustment *adj)
|
||||
{
|
||||
gint i,j;
|
||||
gint imin, imax, jmin, jmax;
|
||||
|
||||
imin = (event->area.x) / 10;
|
||||
imax = (event->area.x + event->area.width + 9) / 10;
|
||||
|
||||
jmin = ((int)adj->value + event->area.y) / 10;
|
||||
jmax = ((int)adj->value + event->area.y + event->area.height + 9) / 10;
|
||||
|
||||
gdk_window_clear_area (widget->window,
|
||||
event->area.x, event->area.y,
|
||||
event->area.width, event->area.height);
|
||||
|
||||
for (i=imin; i<imax; i++)
|
||||
for (j=jmin; j<jmax; j++)
|
||||
if ((i+j) % 2)
|
||||
gdk_draw_rectangle (widget->window,
|
||||
widget->style->black_gc,
|
||||
TRUE,
|
||||
10*i, 10*j - (int)adj->value, 1+i%10, 1+j%10);
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
static void
|
||||
scroll_test_configure (GtkWidget *widget, GdkEventConfigure *event,
|
||||
GtkAdjustment *adj)
|
||||
{
|
||||
adj->page_increment = 0.9 * widget->allocation.height;
|
||||
adj->page_size = widget->allocation.height;
|
||||
|
||||
gtk_signal_emit_by_name (GTK_OBJECT (adj), "changed");
|
||||
}
|
||||
|
||||
static void
|
||||
scroll_test_adjustment_changed (GtkAdjustment *adj, GtkWidget *widget)
|
||||
{
|
||||
gint source_min = (int)adj->value - scroll_test_pos;
|
||||
gint source_max = source_min + widget->allocation.height;
|
||||
gint dest_min = 0;
|
||||
gint dest_max = widget->allocation.height;
|
||||
GdkRectangle rect;
|
||||
GdkEvent *event;
|
||||
|
||||
scroll_test_pos = adj->value;
|
||||
|
||||
if (!GTK_WIDGET_DRAWABLE (widget))
|
||||
return;
|
||||
|
||||
if (source_min < 0)
|
||||
{
|
||||
rect.x = 0;
|
||||
rect.y = 0;
|
||||
rect.width = widget->allocation.width;
|
||||
rect.height = -source_min;
|
||||
if (rect.height > widget->allocation.height)
|
||||
rect.height = widget->allocation.height;
|
||||
|
||||
source_min = 0;
|
||||
dest_min = rect.height;
|
||||
}
|
||||
else
|
||||
{
|
||||
rect.x = 0;
|
||||
rect.y = 2*widget->allocation.height - source_max;
|
||||
if (rect.y < 0)
|
||||
rect.y = 0;
|
||||
rect.width = widget->allocation.width;
|
||||
rect.height = widget->allocation.height - rect.y;
|
||||
|
||||
source_max = widget->allocation.height;
|
||||
dest_max = rect.y;
|
||||
}
|
||||
|
||||
if (source_min != source_max)
|
||||
{
|
||||
if (scroll_test_gc == NULL)
|
||||
{
|
||||
scroll_test_gc = gdk_gc_new (widget->window);
|
||||
gdk_gc_set_exposures (scroll_test_gc, TRUE);
|
||||
}
|
||||
|
||||
gdk_draw_pixmap (widget->window,
|
||||
scroll_test_gc,
|
||||
widget->window,
|
||||
0, source_min,
|
||||
0, dest_min,
|
||||
widget->allocation.width,
|
||||
source_max - source_min);
|
||||
|
||||
/* Make sure graphics expose events are processed before scrolling
|
||||
* again */
|
||||
|
||||
while ((event = gdk_event_get_graphics_expose (widget->window)) != NULL)
|
||||
{
|
||||
gtk_widget_event (widget, event);
|
||||
if (event->expose.count == 0)
|
||||
{
|
||||
gdk_event_free (event);
|
||||
break;
|
||||
}
|
||||
gdk_event_free (event);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
if (rect.height != 0)
|
||||
gtk_widget_draw (widget, &rect);
|
||||
}
|
||||
|
||||
|
||||
void
|
||||
create_scroll_test ()
|
||||
{
|
||||
static GtkWidget *window = NULL;
|
||||
GtkWidget *hbox;
|
||||
GtkWidget *drawing_area;
|
||||
GtkWidget *scrollbar;
|
||||
GtkWidget *button;
|
||||
GtkAdjustment *adj;
|
||||
|
||||
if (!window)
|
||||
{
|
||||
window = gtk_dialog_new ();
|
||||
|
||||
gtk_signal_connect (GTK_OBJECT (window), "destroy",
|
||||
GTK_SIGNAL_FUNC(destroy_window),
|
||||
&window);
|
||||
gtk_signal_connect (GTK_OBJECT (window), "delete_event",
|
||||
GTK_SIGNAL_FUNC(destroy_window),
|
||||
&window);
|
||||
|
||||
gtk_window_set_title (GTK_WINDOW (window), "Scroll Test");
|
||||
gtk_container_border_width (GTK_CONTAINER (window), 0);
|
||||
|
||||
hbox = gtk_hbox_new (FALSE, 0);
|
||||
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (window)->vbox), hbox,
|
||||
TRUE, TRUE, 0);
|
||||
gtk_widget_show (hbox);
|
||||
|
||||
drawing_area = gtk_drawing_area_new ();
|
||||
gtk_drawing_area_size (GTK_DRAWING_AREA (drawing_area), 200, 200);
|
||||
gtk_box_pack_start (GTK_BOX (hbox), drawing_area, TRUE, TRUE, 0);
|
||||
gtk_widget_show (drawing_area);
|
||||
|
||||
gtk_widget_set_events (drawing_area, GDK_EXPOSURE_MASK);
|
||||
|
||||
adj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 1000.0, 1.0, 180.0, 200.0));
|
||||
scroll_test_pos = 0.0;
|
||||
|
||||
scrollbar = gtk_vscrollbar_new (adj);
|
||||
gtk_box_pack_start (GTK_BOX (hbox), scrollbar, FALSE, FALSE, 0);
|
||||
gtk_widget_show (scrollbar);
|
||||
|
||||
gtk_signal_connect (GTK_OBJECT (drawing_area), "expose_event",
|
||||
GTK_SIGNAL_FUNC (scroll_test_expose), adj);
|
||||
gtk_signal_connect (GTK_OBJECT (drawing_area), "configure_event",
|
||||
GTK_SIGNAL_FUNC (scroll_test_configure), adj);
|
||||
|
||||
|
||||
gtk_signal_connect (GTK_OBJECT (adj), "value_changed",
|
||||
GTK_SIGNAL_FUNC (scroll_test_adjustment_changed),
|
||||
drawing_area);
|
||||
|
||||
/* .. And create some buttons */
|
||||
|
||||
button = gtk_button_new_with_label ("Quit");
|
||||
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (window)->action_area),
|
||||
button, TRUE, TRUE, 0);
|
||||
|
||||
gtk_signal_connect_object (GTK_OBJECT (button), "clicked",
|
||||
GTK_SIGNAL_FUNC (gtk_widget_destroy),
|
||||
GTK_OBJECT (window));
|
||||
gtk_widget_show (button);
|
||||
}
|
||||
|
||||
if (!GTK_WIDGET_VISIBLE (window))
|
||||
gtk_widget_show (window);
|
||||
else
|
||||
gtk_widget_destroy (window);
|
||||
}
|
||||
|
||||
/*
|
||||
* Timeout Test
|
||||
@ -3069,6 +3257,7 @@ create_main_window ()
|
||||
{ "preview color", create_color_preview },
|
||||
{ "preview gray", create_gray_preview },
|
||||
{ "gamma curve", create_gamma_curve },
|
||||
{ "test scrolling", create_scroll_test },
|
||||
{ "test selection", create_selection_test },
|
||||
{ "test timeout", create_timeout_test },
|
||||
{ "test idle", create_idle_test },
|
||||
|
||||
Reference in New Issue
Block a user