add back view 1:1 operator from 2.4x (Shift+PadEnter)

1 files changed, 41 insertions, 0 deletions

diff --git a/source/blender/editors/space_view3d/view3d_edit.c b/source/blender/editors/space_view3d/view3d_edit.c
index 7842707d7e8..9b26cae434d 100644
--- a/source/blender/editors/space_view3d/view3d_edit.c
+++ b/source/blender/editors/space_view3d/view3d_edit.c
@@ -1843,6 +1843,47 @@ void VIEW3D_OT_zoom_border(wmOperatorType *ot)
 	RNA_def_int(ot->srna, "ymax", 0, INT_MIN, INT_MAX, "Y Max", "", INT_MIN, INT_MAX);
 
 }
+
+/* sets the view to 1:1 camera/render-pixel */
+static void view3d_set_1_to_1_viewborder(Scene *scene, ARegion *ar)
+{
+	RegionView3D *rv3d= ar->regiondata;
+	float size[2];
+	int im_width= (scene->r.size*scene->r.xsch)/100;
+	
+	view3d_viewborder_size_get(scene, ar, size);
+	
+	rv3d->camzoom= (sqrt(4.0*im_width/size[0]) - M_SQRT2)*50.0;
+	rv3d->camzoom= CLAMPIS(rv3d->camzoom, RV3D_CAMZOOM_MIN, RV3D_CAMZOOM_MAX);
+}
+
+static int view3d_zoom_1_to_1_camera_exec(bContext *C, wmOperator *UNUSED(op))
+{
+	Scene *scene= CTX_data_scene(C);
+	ARegion *ar= CTX_wm_region(C);
+
+	view3d_set_1_to_1_viewborder(scene, ar);
+
+	WM_event_add_notifier(C, NC_SPACE|ND_SPACE_VIEW3D, CTX_wm_view3d(C));
+
+	return OPERATOR_FINISHED;
+}
+
+void VIEW3D_OT_zoom_camera_1_to_1(wmOperatorType *ot)
+{
+	/* identifiers */
+	ot->name= "Zoom Camera 1:1";
+	ot->description = "Match the camera to 1:1 to the render output";
+	ot->idname= "VIEW3D_OT_zoom_camera_1_to_1";
+
+	/* api callbacks */
+	ot->exec= view3d_zoom_1_to_1_camera_exec;
+	ot->poll= view3d_camera_active_poll;
+
+	/* flags */
+	ot->flag= 0;
+}
+
 /* ********************* Changing view operator ****************** */
 
 static EnumPropertyItem prop_view_items[] = {