95 lines
2.6 KiB
C++
95 lines
2.6 KiB
C++
// Scintilla source code edit control
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/** @file XPM.h
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** Define a classes to hold image data in the X Pixmap (XPM) and RGBA formats.
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**/
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// Copyright 1998-2003 by Neil Hodgson <neilh@scintilla.org>
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// The License.txt file describes the conditions under which this software may be distributed.
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#ifndef XPM_H
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#define XPM_H
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#ifdef SCI_NAMESPACE
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namespace Scintilla {
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#endif
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/**
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* Hold a pixmap in XPM format.
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*/
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class XPM {
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int height;
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int width;
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int nColours;
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std::vector<unsigned char> pixels;
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ColourDesired colourCodeTable[256];
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char codeTransparent;
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ColourDesired ColourFromCode(int ch) const;
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void FillRun(Surface *surface, int code, int startX, int y, int x);
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public:
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explicit XPM(const char *textForm);
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explicit XPM(const char *const *linesForm);
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~XPM();
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void Init(const char *textForm);
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void Init(const char *const *linesForm);
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/// Decompose image into runs and use FillRectangle for each run
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void Draw(Surface *surface, PRectangle &rc);
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int GetHeight() const { return height; }
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int GetWidth() const { return width; }
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void PixelAt(int x, int y, ColourDesired &colour, bool &transparent) const;
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private:
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static std::vector<const char *>LinesFormFromTextForm(const char *textForm);
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};
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/**
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* A translucent image stored as a sequence of RGBA bytes.
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*/
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class RGBAImage {
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// Private so RGBAImage objects can not be copied
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RGBAImage(const RGBAImage &);
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RGBAImage &operator=(const RGBAImage &);
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int height;
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int width;
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float scale;
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std::vector<unsigned char> pixelBytes;
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public:
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RGBAImage(int width_, int height_, float scale_, const unsigned char *pixels_);
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explicit RGBAImage(const XPM &xpm);
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virtual ~RGBAImage();
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int GetHeight() const { return height; }
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int GetWidth() const { return width; }
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float GetScale() const { return scale; }
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float GetScaledHeight() const { return height / scale; }
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float GetScaledWidth() const { return width / scale; }
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int CountBytes() const;
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const unsigned char *Pixels() const;
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void SetPixel(int x, int y, ColourDesired colour, int alpha=0xff);
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};
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/**
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* A collection of RGBAImage pixmaps indexed by integer id.
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*/
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class RGBAImageSet {
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typedef std::map<int, RGBAImage*> ImageMap;
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ImageMap images;
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mutable int height; ///< Memorize largest height of the set.
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mutable int width; ///< Memorize largest width of the set.
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public:
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RGBAImageSet();
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~RGBAImageSet();
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/// Remove all images.
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void Clear();
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/// Add an image.
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void Add(int ident, RGBAImage *image);
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/// Get image by id.
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RGBAImage *Get(int ident);
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/// Give the largest height of the set.
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int GetHeight() const;
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/// Give the largest width of the set.
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int GetWidth() const;
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};
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#ifdef SCI_NAMESPACE
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}
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#endif
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#endif
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