X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fdraghandle.cpp;fp=source%2Fdraghandle.cpp;h=067a515c2b533e39bc31dca4f60c872056719c81;hb=31e9ee682f8a9cd77c97ed9dc142283559ddaacc;hp=0000000000000000000000000000000000000000;hpb=a122a209782e5b5400b5a70bd23ce4feadc6b36b;p=libs%2Fgltk.git

diff --git a/source/draghandle.cpp b/source/draghandle.cpp
new file mode 100644
index 0000000..067a515
--- /dev/null
+++ b/source/draghandle.cpp
@@ -0,0 +1,44 @@
+#include "container.h"
+#include "draghandle.h"
+
+namespace Msp {
+namespace GLtk {
+
+DragHandle::DragHandle():
+	dragging(false),
+	drag_x(0),
+	drag_y(0)
+{ }
+
+void DragHandle::button_press(int x, int y, unsigned btn)
+{
+	if(btn==1 && parent)
+	{
+		dragging = true;
+		drag_x = x;
+		drag_y = y;
+	}
+}
+
+void DragHandle::button_release(int, int, unsigned btn)
+{
+	if(btn==1)
+		dragging = false;
+}
+
+void DragHandle::pointer_motion(int x, int y)
+{
+	if(dragging)
+	{
+		const Geometry &pgeom = parent->get_geometry();
+		parent->set_position(pgeom.x+x-drag_x, pgeom.y+y-drag_y);
+	}
+}
+
+void DragHandle::on_reparent()
+{
+	dragging = false;
+}
+
+} // namespace GLtk
+} // namespace Msp