77 lines
2.7 KiB
C++
77 lines
2.7 KiB
C++
/**********************************************************************
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Audacity: A Digital Audio Editor
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ImageManipulation.h
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Dominic Mazzoni
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**********************************************************************/
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#include "MemoryX.h"
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#include <wx/defs.h>
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class wxColour;
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class wxImage;
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// This looks at the first pixel in the image, and shifts
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// the entire image by the vector difference between that
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// pixel and the dstColour. For better control, use
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// ChangeImageColour(wxImage, wxColour*, wxColour*) below
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AUDACITY_DLL_API
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std::unique_ptr<wxImage> ChangeImageColour(wxImage * srcImage, wxColour & dstColour);
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// This function takes a source image, which it assumes to
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// be grayscale, and smoothly changes the overall color
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// to the specified color, and returns the result as a
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// NEW image. This works well for grayscale 3D images.
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// Audacity uses this routines to make the buttons
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// (skip-start, play, stop, record, skip-end) adapt to
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// the color scheme of the user.
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AUDACITY_DLL_API
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std::unique_ptr<wxImage> ChangeImageColour(wxImage * srcImage,
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wxColour & srcColour,
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wxColour & dstColour);
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// Takes a background image, foreground image, and mask
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// (i.e. the alpha channel for the foreground), and
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// returns a NEW image where the foreground has been
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// overlaid onto the background using alpha-blending,
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// at location (xoff, yoff).
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AUDACITY_DLL_API
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std::unique_ptr<wxImage> OverlayImage(wxImage * background, wxImage * foreground,
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wxImage * mask, int xoff, int yoff);
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// JKC: will probably change name from 'teBmps' to 'tIndexBmp';
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using teBmps = int; /// The index of a bitmap resource in Theme Resources.
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// Same idea, but this time the mask is an alpha channel in
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// the foreground bitmap, and it's all retrieved from Themes.
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AUDACITY_DLL_API
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std::unique_ptr<wxImage> OverlayImage(teBmps eBack, teBmps eForeground,
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int xoff, int yoff);
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// Creates an image with a solid background color
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AUDACITY_DLL_API
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std::unique_ptr<wxImage> CreateBackground(int width, int height, wxColour colour);
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// Creates an image with the Mac OS X Aqua stripes, to be used
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// as a background
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AUDACITY_DLL_API
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std::unique_ptr<wxImage> CreateAquaBackground(int width, int height, int offset);
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// Uses color on all OS except Mac, uses Aqua
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AUDACITY_DLL_API
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std::unique_ptr<wxImage> CreateSysBackground(int width, int height, int offset,
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wxColour colour);
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// Pastes one image into another at specified location.
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AUDACITY_DLL_API
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void PasteSubImage( wxImage * pDest, wxImage * pSrc, int x, int y );
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// Gets a rectangle from within another image, INCLUDING the alpha channel
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AUDACITY_DLL_API
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wxImage GetSubImageWithAlpha( const wxImage & Src, const wxRect &rect );
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