Add:graphics_cocoa:Implement draw_drag to let cursor move

git-svn-id: https://navit.svn.sourceforge.net/svnroot/navit/trunk@4726 ffa7fe5e-494d-0410-b361-a75ebd5db220

diff --git a/navit/navit/graphics/cocoa/graphics_cocoa.m b/navit/navit/graphics/cocoa/graphics_cocoa.m
index 379ab0f..3ac78b8 100644 (file)
--- a/navit/navit/graphics/cocoa/graphics_cocoa.m
+++ b/navit/navit/graphics/cocoa/graphics_cocoa.m
@@ -65,8 +65,8 @@ static struct graphics_priv {
        CGLayerRef layer;
        CGContextRef layer_context;
        struct callback_list *cbl;
-       struct point p;
-       int w, h, wraparound, overlay_disabled;
+       struct point p, pclean;
+       int w, h, wraparound, overlay_disabled, cleanup;
        struct graphics_priv *parent, *next, *overlays;
 } *global_graphics_cocoa;
 
@@ -476,6 +476,21 @@ static struct graphics_font_methods font_methods = {
        font_destroy
 };
 
+static void
+draw_drag(struct graphics_priv *gr, struct point *p)
+{
+       if (!gr->cleanup) {
+               gr->pclean=gr->p;
+               gr->cleanup=1;
+       }
+       if (p)
+               gr->p=*p;
+       else {
+               gr->p.x=0;
+               gr->p.y=0;
+       }
+}
+
 static struct graphics_font_priv *font_new(struct graphics_priv *gr, struct graphics_font_methods *meth, char *font,  int size, int flags)
 {
        struct graphics_font_priv *ret=g_new0(struct graphics_font_priv, 1);
@@ -625,7 +640,7 @@ static struct graphics_methods graphics_methods = {
        draw_image,
        NULL, /* draw_image_warp, */
        NULL, /* draw_restore, */
-       NULL, /* draw_drag, */
+       draw_drag,
        font_new,
        gc_new,
        background_gc,