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Main Page Class Hierarchy Alphabetical List Compound List File List Compound Members
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#include <FXBitmap.h>
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:
| FX::FXBitmap::FXBitmap | ( | FXApp * | a, | |
| const void * | pix = NULL, |
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| FXuint | opts = 0, |
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| FXint | w = 1, |
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| FXint | h = 1 | |||
| ) |
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.
| virtual FX::FXBitmap::~FXBitmap | ( | ) | [virtual] |
Cleanup.
| void FX::FXBitmap::setOptions | ( | FXuint | opts | ) |
Change options.
| FXuint FX::FXBitmap::getOptions | ( | ) | const [inline] |
To get to the option flags.
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().
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().
| FXuchar* FX::FXBitmap::getData | ( | ) | const [inline] |
To get to the pixel data.
| virtual void FX::FXBitmap::create | ( | ) | [virtual] |
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.
| virtual void FX::FXBitmap::detach | ( | ) | [virtual] |
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.
| virtual void FX::FXBitmap::destroy | ( | ) | [virtual] |
Destroy the server-side pixmap.
The client-side pixel buffer is not affected.
Reimplemented from FX::FXId.
| virtual void FX::FXBitmap::restore | ( | ) | [virtual] |
Retrieves pixels from the server-side bitmap.
| virtual void FX::FXBitmap::render | ( | ) | [virtual] |
Render the server-side representation of the bitmap from client-side pixels.
| virtual void FX::FXBitmap::release | ( | ) | [virtual] |
Release the client-side pixels buffer, free it if it was owned.
If it is not owned, the image just forgets about the buffer.
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.
Rescale pixels image to the specified width and height; this calls resize() to adjust the client and server side representations.
Mirror bitmap horizontally and/or vertically.
| virtual void FX::FXBitmap::rotate | ( | FXint | degrees | ) | [virtual] |
Rotate bitmap by degrees ccw.
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.
| virtual void FX::FXBitmap::fill | ( | FXbool | color | ) | [virtual] |
Fill bitmap with uniform value.
| virtual void FX::FXBitmap::save | ( | FXStream & | store | ) | const [virtual] |
| virtual void FX::FXBitmap::load | ( | FXStream & | store | ) | [virtual] |
| virtual bool FX::FXBitmap::savePixels | ( | FXStream & | store | ) | const [virtual] |
Save pixel data only.
| virtual bool FX::FXBitmap::loadPixels | ( | FXStream & | store | ) | [virtual] |
Load pixel data only.
friend class FXDC [friend] |
Reimplemented from FX::FXDrawable.
friend class FXDCWindow [friend] |
Reimplemented from FX::FXDrawable.
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Copyright © 1997-2005 Jeroen van der Zijp
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