a2dMemDcDrawer Class Reference
[classes used for drawing with a2dDrawer2D]
This class implements drawing functions for wxDC based drawing.
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#include <dcdrawer.h>
Inheritance diagram for a2dMemDcDrawer:
Collaboration diagram for a2dMemDcDrawer:
Public Member Functions | |
| a2dMemDcDrawer (int width=0, int height=0) | |
| constructor ( just some default ) | |
| a2dMemDcDrawer (const wxSize &size) | |
| Drawer having a buffer of w pixel wide and h pixels height given by size. | |
| virtual void | BeginDraw () |
| start to draw on this context (used to initialize a specific drawer) | |
| virtual void | EndDraw () |
| end drawing on this context (used to reset a specific drawer) | |
| wxBitmap | GetBuffer () const |
| return buffer as a bitmap | |
| void | SetBufferSize (int w, int h) |
| change the size of the buffer | |
| wxBitmap | GetSubBitmap (wxRect sub_rect) const |
| return a bitmap representing a rectangular part of the buffer | |
| virtual | ~a2dMemDcDrawer () |
| destructor | |
| a2dMemDcDrawer (const a2dMemDcDrawer &other) | |
| copy constructor | |
| void | DrawImage (const wxImage &image, double x, double y, double width, double height, wxUint8 Opacity=255) |
| Draw a wxImage in world coordinates. | |
| void | DrawImage (const a2dImageRGBA &image, double x, double y, double width, double height, wxUint8 Opacity=255) |
| void | CopyIntoBuffer (const wxBitmap &bitm) |
| virtual void | BlitBuffer (wxRect rect, const wxPoint &bufferpos=wxPoint(0, 0)) |
| blit given rect contents within buffer to device | |
| virtual void | BlitBuffer (wxDC *dc, wxRect rect, const wxPoint &bufferpos=wxPoint(0, 0)) |
| used for blitting to a wxDC. | |
| virtual void | ShiftBuffer (int dxy, bool yshift) |
| quick scroll over small distance | |
Protected Member Functions | |
| virtual void | DrawPolygon (const a2dVertexList *list, bool spline=false, wxPolygonFillMode fillStyle=wxODDEVEN_RULE) |
| Draw polygon in world coordinates using pointlist. | |
| virtual void | DeviceDrawPolygon (unsigned int n, bool spline, wxPolygonFillMode fillStyle) |
| draw an internal polygon in device coordinates | |
Protected Attributes | |
| wxBitmap | m_buffer |
| the buffer that is used for rendering | |
| wxMemoryDC * | m_memdc |
| Created at BeginDraw, and destoyed at EndDraw, used to actually draw. | |
Detailed Description
This class implements drawing functions for wxDC based drawing.It uses a bitmap buffer to do double buffering. See a2dCanvasView class for more documentation. To start drawing you must call BeginDraw at when stopping drawing you must call EndDraw. This will takes care of setting and releasing the wxMemoryDC used internal, and keeps your code "a2dCanvasView type" independent.
- See also:
- class: a2dCanvas
class: a2dRenderImage
Definition at line 203 of file dcdrawer.h.
Member Function Documentation
| void a2dMemDcDrawer::DrawImage | ( | const wxImage & | image, | |
| double | x, | |||
| double | y, | |||
| double | width, | |||
| double | height, | |||
| wxUint8 | Opacity = 255 | |||
| ) | [virtual] |
Draw a wxImage in world coordinates.
Use AggDrawer when available.
Reimplemented from a2dDcDrawer.
Definition at line 2573 of file dcdrawer.cpp.
The documentation for this class was generated from the following files: