CCursorWidget Class Reference

Description

Widget with an additional rectangular cursor.

Definition at line 125 of file ui_widgets.H.

#include "ui_widgets.H"

Inheritance diagram for CCursorWidget:

Public Member Functions
virtual void	Render (SDL_Renderer *ren)
	Render this widget. More...
virtual bool	HandleEvent (SDL_Event *ev)
	Handle an event and return 'true' if the event was consumed and is to be ignored by later widgets.
Public Member Functions inherited from CWidget
void	Set (SDL_Surface *_surf, int x0, int y0)
void	SetArea (SDL_Rect _area)
SDL_Rect *	GetArea ()
class CScreen *	GetScreen ()
bool	IsOnScreen (class CScreen *_screen)
class CCanvas *	GetCanvas ()
void	LocalToScreenCoords (int *x, int *y)
void	ScreenToLocalCoords (int *x, int *y)
void	GetMouseEventPos (SDL_Event *ev, int *x, int *y)
void	SetSurface (SDL_Surface *_surface)
	Set the static surface to display. The caller stays owner of surface, must not delete it as long as it is set here. The surface dimensions must match 'area'.
virtual SDL_Surface *	GetSurface ()
	Get an up-to-date surface or 'NULL' if none is available.
void	GetRenderArea (SDL_Rect *ra)
	Transpose 'area' to the current screen coordinates to be passed to all SDL rendering functions.
virtual SDL_Texture *	GetTexture ()
	Return an up-to-date texture. More...
void	SetTextureBlendMode (SDL_BlendMode _sdlBlendMode)
	Set the blend mode for the texture created by the default implementation of GetTexture(). The default is SDL_BLENDMODE_NONE.
void	ClearTexture ()
	Clear the internally cached texture object to save memory.

Additional Inherited Members
Protected Member Functions inherited from CWidget
void	ChangedSurface ()
	Mark (only) the surface as changed to trigger a redrawing at next occasion.
void	Changed ()
	Anything may have changed: Trigger a redrawing at next occasion.

Member Function Documentation

Render()

virtual void CCursorWidget::Render ( SDL_Renderer *  ren )

virtual

Render this widget.

The default implementation uses the 'GetTexture()' method above. By overriding this method it is possible to define widgets with a custom SDL rendering procedure, which may be more efficient than preparing a single texture containing the complete widget.

It is allowed to pass 'ren == NULL', in which case all textures and internal data structures are (re-)calculated, but nothing is actually rendered.

Reimplemented from CWidget.

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The documentation for this class was generated from the following file:

• wallclock/ui_widgets.H