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Main Page Class Hierarchy Alphabetical List Compound List File List Compound Members
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#include <FXBitmap.h>
Inheritance diagram for FX::FXBitmap:
Public Member Functions | |
| FXBitmap (FXApp *a, const void *pix=NULL, FXuint opts=0, FXint w=1, FXint h=1) | |
| void | setOptions (FXuint opts) |
| FXuint | getOptions () const |
| virtual void | setData (FXuchar *pix, FXuint opts=0) |
| virtual void | setData (FXuchar *pix, FXuint opts, FXint w, FXint h) |
| FXuchar * | getData () const |
| FXbool | getPixel (FXint x, FXint y) const |
| void | setPixel (FXint x, FXint y, FXbool color) |
| virtual void | create () |
| virtual void | detach () |
| virtual void | destroy () |
| virtual void | restore () |
| virtual void | render () |
| virtual void | release () |
| virtual void | resize (FXint w, FXint h) |
| virtual void | scale (FXint w, FXint h) |
| virtual void | mirror (FXbool horizontal, FXbool vertical) |
| virtual void | rotate (FXint degrees) |
| virtual void | crop (FXint x, FXint y, FXint w, FXint h, FXbool color=0) |
| virtual void | fill (FXbool color) |
| virtual void | save (FXStream &store) const |
| virtual void | load (FXStream &store) |
| virtual bool | savePixels (FXStream &store) const |
| virtual bool | loadPixels (FXStream &store) |
| virtual | ~FXBitmap () |
Friends | |
| class | FXDC |
| class | FXDCWindow |
It supports two representations of these pixels: a client-side pixel buffer, and a server-side pixmap which is stored in an organization directly compatible with the screen, for fast drawing onto the device. The server-side representation is not directly accessible from the current process as it lives in the process of the X Server or GDI. The client-side pixel array is of size height x (width+7)/8 bytes, in other words 8 pixels packed into a single byte, starting at bit 0 on the left.
See also:
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Create a bitmap. If a client-side pixel buffer has been specified, the bitmap does not own the pixel buffer unless the BITMAP_OWNED flag is set. If the BITMAP_OWNED flag is set but a NULL pixel buffer is passed, a pixel buffer will be automatically created and will be owned by the bitmap. The flags BITMAP_SHMI and BITMAP_SHMP may be specified for large bitmaps to instruct render() to use shared memory to communicate with the server. |
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Cleanup.
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Change options.
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To get to the option flags.
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Populate the bitmap with new pixel data of the same size; it will assume ownership of the pixel data if image BITMAP_OWNED option is passed. The server-side representation of the image, if it exists, is not updated. This can be done by calling render(). |
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Populate the bitmap with new pixel data of a new size; it will assume ownership of the pixel data if image BITMAP_OWNED option is passed. The size of the server- side representation of the image, if it exists, is adjusted but the contents are not updated yet. This can be done by calling render(). |
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To get to the pixel data.
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Get pixel at x,y.
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Change pixel at x,y.
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Create the server side pixmap, then call render() to fill it with the pixel data from the client-side buffer. After the server-side image has been created, the client-side pixel buffer will be deleted unless BITMAP_KEEP has been specified. If the pixel buffer is not owned, i.e. the flag BITMAP_OWNED is not set, the pixel buffer will not be deleted. Reimplemented from FX::FXId. |
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Detach the server side pixmap from the Bitmap. Afterwards, the Bitmap is left as if it never had a server-side resources. Reimplemented from FX::FXId. |
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Destroy the server-side pixmap. The client-side pixel buffer is not affected. Reimplemented from FX::FXId. |
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Retrieves pixels from the server-side bitmap.
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Render the server-side representation of the bitmap from client-side pixels.
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Release the client-side pixels buffer, free it if it was owned. If it is not owned, the image just forgets about the buffer. |
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Resize both client-side and server-side representations (if any) to the given width and height. The new representations typically contain garbage after this operation and need to be re-filled. Reimplemented from FX::FXDrawable. |
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Rescale pixels image to the specified width and height; this calls resize() to adjust the client and server side representations.
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Mirror bitmap horizontally and/or vertically.
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Rotate bitmap by degrees ccw.
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Crop bitmap to given rectangle; this calls resize() to adjust the client and server side representations. The new bitmap may be smaller or larger than the old one; blank areas are filled with color. There must be at least one pixel of overlap between the old and the new bitmap. |
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Fill bitmap with uniform value.
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Save object to stream.
Reimplemented from FX::FXDrawable. |
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Load object from stream.
Reimplemented from FX::FXDrawable. |
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Save pixel data only.
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Load pixel data only.
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Reimplemented from FX::FXDrawable. |
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Reimplemented from FX::FXDrawable. |
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Copyright © 1997-2005 Jeroen van der Zijp
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