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Version: 3.3.0 |
Classes | |
| class | wxImageHandler |
| This is the base class for implementing image file loading/saving, and image creation from data. More... | |
| class | wxImage |
| This class encapsulates a platform-independent image. More... | |
| class | wxImage::RGBValue |
| A simple class which stores red, green and blue values as 8 bit unsigned integers in the range of 0-255. More... | |
| class | wxImage::HSVValue |
| A simple class which stores hue, saturation and value as doubles in the range 0.0-1.0. More... | |
| class | wxImageHistogram |
Enumerations | |
| enum | wxImageResolution { wxIMAGE_RESOLUTION_NONE = 0 , wxIMAGE_RESOLUTION_INCHES = 1 , wxIMAGE_RESOLUTION_CM = 2 } |
| Possible values for the image resolution option. More... | |
| enum | wxImageResizeQuality { wxIMAGE_QUALITY_NEAREST , wxIMAGE_QUALITY_BILINEAR , wxIMAGE_QUALITY_BICUBIC , wxIMAGE_QUALITY_BOX_AVERAGE , wxIMAGE_QUALITY_NORMAL , wxIMAGE_QUALITY_FAST , wxIMAGE_QUALITY_HIGH } |
| Image resize algorithm. More... | |
| enum | wxImageAlphaBlendMode { wxIMAGE_ALPHA_BLEND_OVER = 0 , wxIMAGE_ALPHA_BLEND_COMPOSE = 1 } |
| Constants for wxImage::Paste() for specifying alpha blending option. More... | |
| enum | wxImagePNGType { wxPNG_TYPE_COLOUR = 0 , wxPNG_TYPE_GREY = 2 , wxPNG_TYPE_GREY_RED = 3 , wxPNG_TYPE_PALETTE = 4 } |
| Possible values for PNG image type option. More... | |
| enum | { wxBMP_24BPP = 24 , wxBMP_8BPP = 8 , wxBMP_8BPP_GREY = 9 , wxBMP_8BPP_GRAY = wxBMP_8BPP_GREY , wxBMP_8BPP_RED = 10 , wxBMP_8BPP_PALETTE = 11 , wxBMP_4BPP = 4 , wxBMP_1BPP = 1 , wxBMP_1BPP_BW = 2 } |
Functions | |
| void | wxInitAllImageHandlers () |
| Initializes all available image handlers. More... | |
Variables | |
| const unsigned char | wxIMAGE_ALPHA_TRANSPARENT = 0 |
| Constant used to indicate the alpha value conventionally defined as the complete transparency. More... | |
| const unsigned char | wxIMAGE_ALPHA_OPAQUE = 0xff |
| Constant used to indicate the alpha value conventionally defined as the complete opacity. More... | |
| const unsigned char | wxIMAGE_ALPHA_THRESHOLD = 0x80 |
| wxImage | wxNullImage |
| An instance of an empty image without an alpha channel. More... | |
Macro Definition Documentation
◆ wxIMAGE_OPTION_BMP_FORMAT
| #define wxIMAGE_OPTION_BMP_FORMAT wxString("wxBMP_FORMAT") |
◆ wxIMAGE_OPTION_CUR_HOTSPOT_X
| #define wxIMAGE_OPTION_CUR_HOTSPOT_X wxString("HotSpotX") |
◆ wxIMAGE_OPTION_CUR_HOTSPOT_Y
| #define wxIMAGE_OPTION_CUR_HOTSPOT_Y wxString("HotSpotY") |
◆ wxIMAGE_OPTION_FILENAME
| #define wxIMAGE_OPTION_FILENAME wxString("FileName") |
◆ wxIMAGE_OPTION_GIF_COMMENT
| #define wxIMAGE_OPTION_GIF_COMMENT wxString("GifComment") |
◆ wxIMAGE_OPTION_GIF_TRANSPARENCY
| #define wxIMAGE_OPTION_GIF_TRANSPARENCY wxString("Transparency") |
◆ wxIMAGE_OPTION_GIF_TRANSPARENCY_HIGHLIGHT
| #define wxIMAGE_OPTION_GIF_TRANSPARENCY_HIGHLIGHT wxString("Highlight") |
◆ wxIMAGE_OPTION_GIF_TRANSPARENCY_UNCHANGED
| #define wxIMAGE_OPTION_GIF_TRANSPARENCY_UNCHANGED wxString("Unchanged") |
◆ wxIMAGE_OPTION_MAX_HEIGHT
| #define wxIMAGE_OPTION_MAX_HEIGHT wxString("MaxHeight") |
◆ wxIMAGE_OPTION_MAX_WIDTH
| #define wxIMAGE_OPTION_MAX_WIDTH wxString("MaxWidth") |
◆ wxIMAGE_OPTION_ORIGINAL_HEIGHT
| #define wxIMAGE_OPTION_ORIGINAL_HEIGHT wxString("OriginalHeight") |
◆ wxIMAGE_OPTION_ORIGINAL_WIDTH
| #define wxIMAGE_OPTION_ORIGINAL_WIDTH wxString("OriginalWidth") |
◆ wxIMAGE_OPTION_PNG_BITDEPTH
| #define wxIMAGE_OPTION_PNG_BITDEPTH wxString("PngBitDepth") |
◆ wxIMAGE_OPTION_PNG_COMPRESSION_BUFFER_SIZE
| #define wxIMAGE_OPTION_PNG_COMPRESSION_BUFFER_SIZE wxString("PngZB") |
◆ wxIMAGE_OPTION_PNG_COMPRESSION_LEVEL
| #define wxIMAGE_OPTION_PNG_COMPRESSION_LEVEL wxString("PngZL") |
◆ wxIMAGE_OPTION_PNG_COMPRESSION_MEM_LEVEL
| #define wxIMAGE_OPTION_PNG_COMPRESSION_MEM_LEVEL wxString("PngZM") |
◆ wxIMAGE_OPTION_PNG_COMPRESSION_STRATEGY
| #define wxIMAGE_OPTION_PNG_COMPRESSION_STRATEGY wxString("PngZS") |
◆ wxIMAGE_OPTION_PNG_FILTER
| #define wxIMAGE_OPTION_PNG_FILTER wxString("PngF") |
◆ wxIMAGE_OPTION_PNG_FORMAT
| #define wxIMAGE_OPTION_PNG_FORMAT wxString("PngFormat") |
◆ wxIMAGE_OPTION_QUALITY
| #define wxIMAGE_OPTION_QUALITY wxString("quality") |
Image option names.
◆ wxIMAGE_OPTION_RESOLUTION
| #define wxIMAGE_OPTION_RESOLUTION wxString("Resolution") |
◆ wxIMAGE_OPTION_RESOLUTIONUNIT
| #define wxIMAGE_OPTION_RESOLUTIONUNIT wxString("ResolutionUnit") |
◆ wxIMAGE_OPTION_RESOLUTIONX
| #define wxIMAGE_OPTION_RESOLUTIONX wxString("ResolutionX") |
◆ wxIMAGE_OPTION_RESOLUTIONY
| #define wxIMAGE_OPTION_RESOLUTIONY wxString("ResolutionY") |
◆ wxIMAGE_OPTION_TIFF_BITSPERSAMPLE
| #define wxIMAGE_OPTION_TIFF_BITSPERSAMPLE wxString("BitsPerSample") |
◆ wxIMAGE_OPTION_TIFF_COMPRESSION
| #define wxIMAGE_OPTION_TIFF_COMPRESSION wxString("Compression") |
◆ wxIMAGE_OPTION_TIFF_IMAGEDESCRIPTOR
| #define wxIMAGE_OPTION_TIFF_IMAGEDESCRIPTOR wxString("ImageDescriptor") |
◆ wxIMAGE_OPTION_TIFF_PHOTOMETRIC
| #define wxIMAGE_OPTION_TIFF_PHOTOMETRIC wxString("Photometric") |
◆ wxIMAGE_OPTION_TIFF_SAMPLESPERPIXEL
| #define wxIMAGE_OPTION_TIFF_SAMPLESPERPIXEL wxString("SamplesPerPixel") |
Enumeration Type Documentation
◆ anonymous enum
| anonymous enum |
◆ wxImageAlphaBlendMode
Constants for wxImage::Paste() for specifying alpha blending option.
- Since
- 3.1.5
| Enumerator | |
|---|---|
| wxIMAGE_ALPHA_BLEND_OVER | Overwrite the original alpha values with the ones being pasted. |
| wxIMAGE_ALPHA_BLEND_COMPOSE | Compose the original alpha values with the ones being pasted. |
◆ wxImagePNGType
| enum wxImagePNGType |
Possible values for PNG image type option.
- See also
- wxImage::GetOptionInt().
| Enumerator | |
|---|---|
| wxPNG_TYPE_COLOUR | Colour PNG image. |
| wxPNG_TYPE_GREY | Greyscale PNG image converted from RGB. |
| wxPNG_TYPE_GREY_RED | Greyscale PNG image using red as grey. |
| wxPNG_TYPE_PALETTE | Palette encoding. |
◆ wxImageResizeQuality
| enum wxImageResizeQuality |
Image resize algorithm.
This is used with wxImage::Scale() and wxImage::Rescale().
| Enumerator | |
|---|---|
| wxIMAGE_QUALITY_NEAREST | Simplest and fastest algorithm. In wxWidgets versions before 3.3.0 this used to be the same as wxIMAGE_QUALITY_NORMAL, but this is no longer the case when downscaling the images. You can use the new wxIMAGE_QUALITY_FAST as a synonym for this algorithm if speed is paramount. |
| wxIMAGE_QUALITY_BILINEAR | Compromise between wxIMAGE_QUALITY_NEAREST and wxIMAGE_QUALITY_BICUBIC. |
| wxIMAGE_QUALITY_BICUBIC | Highest quality but slowest execution time. |
| wxIMAGE_QUALITY_BOX_AVERAGE | Use surrounding pixels to calculate an average that will be used for new pixels. This method is typically used when reducing the size of an image. |
| wxIMAGE_QUALITY_NORMAL | Default image resizing algorithm used by wxImage::Scale(). Currently this is the same as wxIMAGE_QUALITY_NEAREST when enlarging the image (in at least one direction) and wxIMAGE_QUALITY_BILINEAR when reducing it, which produces relatively good results for the images typically used for the icons in the GUI applications. |
| wxIMAGE_QUALITY_FAST | Fastest image resizing algorithm. Currently this is the same as wxIMAGE_QUALITY_NEAREST, but this may change in the future. Please use this value if speed is more important than the quality of the result.
|
| wxIMAGE_QUALITY_HIGH | Best image resizing algorithm. Since version 2.9.2 this results in wxIMAGE_QUALITY_BOX_AVERAGE being used when reducing the size of the image (meaning that both the new width and height will be smaller than the original size). Otherwise wxIMAGE_QUALITY_BICUBIC is used. This algorithm is the slowest, but may produce better results, especially for photogenic images. |
◆ wxImageResolution
| enum wxImageResolution |
Possible values for the image resolution option.
- See also
- wxImage::GetOptionInt().
| Enumerator | |
|---|---|
| wxIMAGE_RESOLUTION_NONE | Resolution not specified. |
| wxIMAGE_RESOLUTION_INCHES | Resolution specified in inches. |
| wxIMAGE_RESOLUTION_CM | Resolution specified in centimetres. |
Variable Documentation
◆ wxIMAGE_ALPHA_OPAQUE
| const unsigned char wxIMAGE_ALPHA_OPAQUE = 0xff |
Constant used to indicate the alpha value conventionally defined as the complete opacity.
◆ wxIMAGE_ALPHA_THRESHOLD
| const unsigned char wxIMAGE_ALPHA_THRESHOLD = 0x80 |
◆ wxIMAGE_ALPHA_TRANSPARENT
| const unsigned char wxIMAGE_ALPHA_TRANSPARENT = 0 |
Constant used to indicate the alpha value conventionally defined as the complete transparency.
◆ wxNullImage
| wxImage wxNullImage |
An instance of an empty image without an alpha channel.