};
+void test_draw(Drawing_t *Drawing)
+{
+ GdkRectangle update_rect;
+// GdkColor color = { 0, 65535, 65535, 65535 };
-Drawing_t *Drawing_construct(void)
+// gdk_colormap_alloc_color(gdk_rgb_get_cmap(), &color, 0, 1);
+
+// GdkGC *gc =
+// Drawing->Drawing_Area_V->
+// style->fg_gc[GTK_WIDGET_STATE (Drawing->Drawing_Area_V)];
+// gdk_gc_set_foreground(gc, &color);
+ update_rect.x = 50;
+ update_rect.y = 50;
+ update_rect.width = 1000;
+ update_rect.height = 1000;
+ gdk_draw_rectangle (Drawing->Pixmap,
+ Drawing->Drawing_Area_V->style->black_gc,
+ TRUE,
+ 50, 50,
+ 1000,
+ 1000);
+
+
+ //Drawing_draw_line(Drawing, 10, 10, 50, 10,
+ // Drawing->Drawing_Area_V->style->black_gc);
+ gtk_widget_draw (Drawing->Drawing_Area_V, &update_rect);
+
+// Drawing_Refresh( Drawing, 0, 0, 30, 30);
+}
+
+void Drawing_Data_Request(Drawing_t *Drawing,
+ GdkPixmap *Pixmap,
+ gint x, gint y,
+ gint width,
+ gint height)
+{
+ gdk_draw_rectangle (Pixmap,
+ Drawing->Drawing_Area_V->style->white_gc,
+ TRUE,
+ x, y,
+ width, // do not overlap
+ height);
+
+ Drawing_draw_line(Drawing, Pixmap, 10, 10, 50, 10,
+ Drawing->Drawing_Area_V->style->black_gc);
+
+}
+
+/* Callbacks */
+
+
+/* Create a new backing pixmap of the appropriate size */
+static gboolean
+configure_event( GtkWidget *widget, GdkEventConfigure *event,
+ gpointer user_data)
{
+ Drawing_t *Drawing = (Drawing_t*)user_data;
+ GdkPixmap *Pixmap = gdk_pixmap_new(widget->window,
+ widget->allocation.width,
+ widget->allocation.height,
+ -1);
+
+ if(Drawing->Pixmap == NULL)
+ {
+ Drawing->Pixmap = gdk_pixmap_new(widget->window,
+ widget->allocation.width,
+ widget->allocation.height,
+ -1);
+ Drawing->width = widget->allocation.width;
+ Drawing->height = widget->allocation.height;
+
+ /* Initial data request */
+ Drawing_Data_Request(Drawing, Drawing->Pixmap, 0, 0,
+ widget->allocation.width,
+ widget->allocation.height);
+
+ }
+// /* Draw empty background */
+// gdk_draw_rectangle (Pixmap,
+// widget->style->black_gc,
+// TRUE,
+// 0, 0,
+// widget->allocation.width,
+// widget->allocation.height);
+
+ /* Copy old data to new pixmap */
+ gdk_draw_drawable (Pixmap,
+ widget->style->white_gc,
+ Drawing->Pixmap,
+ 0, 0,
+ 0, 0,
+ -1, -1);
+
+ /* Request data for missing space */
+ Drawing_Data_Request(Drawing, Pixmap, Drawing->width, 0,
+ widget->allocation.width - Drawing->width,
+ widget->allocation.height);
+ Drawing_Data_Request(Drawing, Pixmap, 0, Drawing->height,
+ Drawing->width,
+ widget->allocation.height - Drawing->height);
+
+// gdk_draw_rectangle (Pixmap,
+// widget->style->white_gc,
+// TRUE,
+// Drawing->width, 0,
+// widget->allocation.width -
+// Drawing->width,
+// widget->allocation.height);
+
+// gdk_draw_rectangle (Pixmap,
+// widget->style->white_gc,
+// TRUE,
+// 0, Drawing->height,
+// Drawing->width, // do not overlap
+// widget->allocation.height -
+// Drawing->height);
+
+
+
+ g_critical("drawing configure event");
+
+
+ if (Drawing->Pixmap)
+ gdk_pixmap_unref(Drawing->Pixmap);
+
+ Drawing->Pixmap = Pixmap;
+ Drawing->width = widget->allocation.width;
+ Drawing->height = widget->allocation.height;
+
+ return TRUE;
+}
+
+
+/* Redraw the screen from the backing pixmap */
+static gboolean
+expose_event( GtkWidget *widget, GdkEventExpose *event, gpointer user_data )
+{
+ Drawing_t *Drawing = (Drawing_t*)user_data;
+ g_critical("drawing expose event");
+
+ gdk_draw_pixmap(widget->window,
+ widget->style->fg_gc[GTK_WIDGET_STATE (widget)],
+ Drawing->Pixmap,
+ event->area.x, event->area.y,
+ event->area.x, event->area.y,
+ event->area.width, event->area.height);
+
+ return FALSE;
+}
+
+Drawing_t *Drawing_construct(void)
+{
Drawing_t *Drawing = g_new(Drawing_t, 1);
Drawing->Drawing_Area_V = gtk_drawing_area_new ();
-
+
+ //gtk_widget_set_size_request(Drawing->Drawing_Area_V->window, 50, 50);
g_object_set_data_full(
G_OBJECT(Drawing->Drawing_Area_V),
"Link_Drawing_Data",
Drawing,
(GDestroyNotify)Drawing_destroy);
- gtk_widget_modify_bg( Drawing->Drawing_Area_V,
- GTK_STATE_NORMAL,
- &CF_Colors[BLACK]);
-
- gdk_window_get_geometry(Drawing->Drawing_Area_V->window,
- NULL, NULL,
- &(Drawing->width),
- &(Drawing->height),
- &(Drawing->depth));
-
- Drawing->Pixmap = gdk_pixmap_new(
- Drawing->Drawing_Area_V->window,
- Drawing->width,
- Drawing->height,
- Drawing->depth);
-
+ //gtk_widget_modify_bg( Drawing->Drawing_Area_V,
+ // GTK_STATE_NORMAL,
+ // &CF_Colors[BLACK]);
+
+ //gdk_window_get_geometry(Drawing->Drawing_Area_V->window,
+ // NULL, NULL,
+ // &(Drawing->width),
+ // &(Drawing->height),
+ // -1);
+
+ //Drawing->Pixmap = gdk_pixmap_new(
+ // Drawing->Drawing_Area_V->window,
+ // Drawing->width,
+ // Drawing->height,
+ // Drawing->depth);
+
+ Drawing->Pixmap = NULL;
+
+// Drawing->Pixmap = gdk_pixmap_new(Drawing->Drawing_Area_V->window,
+// Drawing->Drawing_Area_V->allocation.width,
+// Drawing->Drawing_Area_V->allocation.height,
+// -1);
+
+
+ g_signal_connect (G_OBJECT(Drawing->Drawing_Area_V),
+ "configure_event",
+ G_CALLBACK (configure_event),
+ (gpointer)Drawing);
+
+ g_signal_connect (G_OBJECT(Drawing->Drawing_Area_V),
+ "expose_event",
+ G_CALLBACK (expose_event),
+ (gpointer)Drawing);
+
return Drawing;
}
}
+void Drawing_Refresh ( Drawing_t *Drawing,
+ guint x, guint y,
+ guint width, guint height)
+{
+ gdk_draw_drawable(
+ Drawing->Drawing_Area_V->window,
+ Drawing->Drawing_Area_V->
+ style->fg_gc[GTK_WIDGET_STATE (Drawing->Drawing_Area_V)],
+ GDK_DRAWABLE(Drawing->Pixmap),
+ x, y,
+ x, y,
+ width, height);
+}
+
+
+void Drawing_draw_line( Drawing_t *Drawing,
+ GdkPixmap *Pixmap,
+ guint x1, guint y1,
+ guint x2, guint y2,
+ GdkGC *GC)
+{
+ gdk_draw_line (Pixmap,
+ GC,
+ x1, y1, x2, y2);
+}
+
+
void Drawing_Resize(Drawing_t *Drawing, guint h, guint w)
}
+
+
projects / lttv.git / blobdiff