Mercurial > hg > toolkit / file diff

--- a/ui/motif/graphics.c	Sun Nov 29 21:43:03 2015 +0100
+++ b/ui/motif/graphics.c	Mon Nov 30 14:09:55 2015 +0100
@@ -92,6 +92,45 @@
     return drawingarea;
 }
 
+static void ui_drawingarea_input(Widget widget, XtPointer u, XtPointer c) {
+    XmDrawingAreaCallbackStruct *cbs = (XmDrawingAreaCallbackStruct*)c;
+    XEvent *xevent = cbs->event;
+    UiMouseEventData *event = u;
+    
+    if (cbs->reason == XmCR_INPUT) {
+        if (xevent->xany.type == ButtonPress) {
+            UiMouseEvent me;
+            me.x = xevent->xbutton.x;
+            me.y = xevent->xbutton.y;
+            // TODO: configurable double click time
+            me.type = xevent->xbutton.time - event->last_event > 300 ? UI_PRESS : UI_PRESS2;
+            
+            UiEvent e;
+            e.obj = event->obj;
+            e.window = event->obj->window;
+            e.document = event->obj->ctx->document;
+            e.eventdata = &me;
+            e.intval = 0;
+            event->callback(&e, event->userdata);
+            
+            
+            event->last_event = me.type == UI_PRESS2 ? 0 : xevent->xbutton.time;
+        }
+    }
+    
+}
+
+void ui_mouse_handler(UiObject *obj, UIWIDGET widget, ui_callback f, void *u) {
+    if(f) {
+        UiMouseEventData *event = malloc(sizeof(UiMouseEventData));
+        event->obj = obj;
+        event->callback = f;
+        event->userdata = u;
+        event->last_event = 0;
+        
+        XtAddCallback(widget, XmNinputCallback, ui_drawingarea_input, event);
+    }
+}
 
 /* -------------------- text layout functions -------------------- */
 UiTextLayout* ui_text(UiGraphics *g) {