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-rw-r--r--FL/Fl_Device.H10
1 files changed, 7 insertions, 3 deletions
diff --git a/FL/Fl_Device.H b/FL/Fl_Device.H
index f443021c0..41e3a9fe7 100644
--- a/FL/Fl_Device.H
+++ b/FL/Fl_Device.H
@@ -52,13 +52,17 @@ class Fl_Widget;
</ol>
*/
class FL_EXPORT Fl_Surface_Device {
- /** \brief The graphics driver in use by this surface. */
+ /** The graphics driver in use by this surface. */
Fl_Graphics_Driver *pGraphicsDriver;
static Fl_Surface_Device *_surface; // the surface that currently receives graphics output
static Fl_Surface_Device *default_surface(); // create surface if none exists yet
+ static Fl_Surface_Device *pre_surface_;
+ // Some drawing surfaces (e.g., Fl_XXX_Image_Surface_Driver) need to re-implement this.
+ // Gets called each time a surface ceases to be the current drawing surface.
+ virtual void end_current_() {}
protected:
- /** \brief Constructor that sets the graphics driver to use for the created surface. */
- Fl_Surface_Device(Fl_Graphics_Driver *graphics_driver) {pGraphicsDriver = graphics_driver; };
+ /** Constructor that sets the graphics driver to use for the created surface. */
+ Fl_Surface_Device(Fl_Graphics_Driver *graphics_driver) {pGraphicsDriver = graphics_driver; }
public:
virtual void set_current(void);
/** \brief Sets the graphics driver of this drawing surface. */