X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/9b24b388c15cab582cfe52e40eb1f9e65e6994c1..2c26bdee058f9146c00717972cd693fc184ce746:/samples/image/image.cpp diff --git a/samples/image/image.cpp b/samples/image/image.cpp index d2990f2b81..e52c7e6c08 100644 --- a/samples/image/image.cpp +++ b/samples/image/image.cpp @@ -1,11 +1,13 @@ -/* - * Program: image - * - * Author: Robert Roebling - * - * Copyright: (C) 1998, Robert Roebling - * - */ +/////////////////////////////////////////////////////////////////////////////// +// Name: samples/image/image.cpp +// Purpose: sample showing operations with wxImage +// Author: Robert Roebling +// Modified by: +// Created: 1998 +// RCS-ID: $Id$ +// Copyright: (c) 1998-2005 Robert Roebling +// License: wxWindows licence +/////////////////////////////////////////////////////////////////////////////// // For compilers that support precompilation, includes "wx/wx.h". #include "wx/wxprec.h" @@ -15,11 +17,12 @@ #endif #ifndef WX_PRECOMP -#include "wx/wx.h" + #include "wx/wx.h" #endif #include "wx/image.h" #include "wx/file.h" +#include "wx/filename.h" #include "wx/mstream.h" #include "wx/wfstream.h" #include "wx/quantize.h" @@ -30,14 +33,17 @@ #endif // wxUSE_CLIPBOARD #include "smile.xbm" +#include "smile.xpm" -#if !defined(__WINDOWS__) || wxUSE_XPM_IN_MSW - #include "smile.xpm" +#if defined(__WXMSW__) + #ifdef wxHAVE_RAW_BITMAP + #include "wx/rawbmp.h" + #endif #endif -#if defined(__WXMSW__) || defined(__WXMAC__) - #include "wx/rawbmp.h" +#if defined(__WXMAC__) || defined(__WXGTK__) #define wxHAVE_RAW_BITMAP + #include "wx/rawbmp.h" #endif // derived classes @@ -50,69 +56,54 @@ class MyApp; class MyCanvas: public wxScrolledWindow { public: - MyCanvas() {} MyCanvas( wxWindow *parent, wxWindowID, const wxPoint &pos, const wxSize &size ); ~MyCanvas(); void OnPaint( wxPaintEvent &event ); void CreateAntiAliasedBitmap(); - wxBitmap *my_horse_png; - wxBitmap *my_horse_jpeg; - wxBitmap *my_horse_gif; - wxBitmap *my_horse_bmp; - wxBitmap *my_horse_bmp2; - wxBitmap *my_horse_pcx; - wxBitmap *my_horse_pnm; - wxBitmap *my_horse_tiff; - wxBitmap *my_horse_xpm; - wxBitmap *my_horse_ico32; - wxBitmap *my_horse_ico16; - wxBitmap *my_horse_ico; - wxBitmap *my_horse_cur; - wxBitmap *my_horse_ani; - - wxBitmap *my_smile_xbm; - wxBitmap *my_square; - wxBitmap *my_anti; + wxBitmap my_horse_png; + wxBitmap my_horse_jpeg; + wxBitmap my_horse_gif; + wxBitmap my_horse_bmp; + wxBitmap my_horse_bmp2; + wxBitmap my_horse_pcx; + wxBitmap my_horse_pnm; + wxBitmap my_horse_tiff; + wxBitmap my_horse_xpm; + wxBitmap my_horse_ico32; + wxBitmap my_horse_ico16; + wxBitmap my_horse_ico; + wxBitmap my_horse_cur; + + wxBitmap my_smile_xbm; + wxBitmap my_square; + wxBitmap my_anti; + + wxBitmap my_horse_asciigrey_pnm; + wxBitmap my_horse_rawgrey_pnm; + + wxBitmap colorized_horse_jpeg; + wxBitmap my_cmyk_jpeg; + + wxBitmap my_toucan; + wxBitmap my_toucan_flipped_horiz; + wxBitmap my_toucan_flipped_vert; + wxBitmap my_toucan_flipped_both; + wxBitmap my_toucan_grey; + wxBitmap my_toucan_head; int xH, yH ; - int m_ani_images ; + int m_ani_images; + wxBitmap *my_horse_ani; -protected: +private: wxBitmap m_bmpSmileXpm; wxIcon m_iconSmileXpm; -private: - DECLARE_DYNAMIC_CLASS(MyCanvas) DECLARE_EVENT_TABLE() }; -const int nChoices = 8 ; -static const wxString bppchoices[nChoices] = -{ - _T("1 bpp color"), - _T("1 bpp B&W"), - _T("4 bpp color"), - _T("8 bpp color"), - _T("8 bpp greyscale"), - _T("8 bpp red"), - _T("8 bpp own palette"), - _T("24 bpp") -}; - -static const int bppvalues[nChoices] = -{ - wxBMP_1BPP, - wxBMP_1BPP_BW, - wxBMP_4BPP, - wxBMP_8BPP, - wxBMP_8BPP_GREY, - wxBMP_8BPP_RED, - wxBMP_8BPP_PALETTE, - wxBMP_24BPP -}; - // MyFrame @@ -144,7 +135,7 @@ class MyImageFrame : public wxFrame { public: MyImageFrame(wxFrame *parent, const wxBitmap& bitmap) - : wxFrame(parent, -1, _T("Double click to save"), + : wxFrame(parent, wxID_ANY, _T("Double click to save"), wxDefaultPosition, wxDefaultSize, wxCAPTION | wxSYSTEM_MENU | wxCLOSE_BOX), m_bitmap(bitmap) @@ -160,79 +151,133 @@ public: void OnPaint(wxPaintEvent& WXUNUSED(event)) { wxPaintDC dc( this ); - dc.DrawBitmap( m_bitmap, 0, 0, TRUE /* use mask */ ); + dc.DrawBitmap( m_bitmap, 0, 0, true /* use mask */ ); } void OnSave(wxMouseEvent& WXUNUSED(event)) { +#if wxUSE_FILEDLG wxImage image = m_bitmap.ConvertToImage(); - int bppselection = wxGetSingleChoiceIndex(_T("Set BMP BPP"), - _T("Set BMP BPP"), - nChoices, - bppchoices, - this); - if ( bppselection == -1 ) - { - // cancelled - return; - } - - image.SetOption(wxIMAGE_OPTION_BMP_FORMAT, bppvalues[bppselection]); - - wxString deffilename = bppchoices[bppselection]; - deffilename.Replace(wxT(" "), wxT("_")); - deffilename += wxT(".bmp"); wxString savefilename = wxFileSelector( wxT("Save Image"), - wxT(""), - deffilename, + wxEmptyString, + wxEmptyString, (const wxChar *)NULL, - wxT("BMP files (*.bmp)|*.bmp|") - wxT("PNG files (*.png)|*.png|") - wxT("JPEG files (*.jpg)|*.jpg|") - wxT("GIF files (*.gif)|*.gif|") - wxT("TIFF files (*.tif)|*.tif|") - wxT("PCX files (*.pcx)|*.pcx|") - wxT("ICO files (*.ico)|*.ico|") - wxT("CUR files (*.cur)|*.cur"), - wxSAVE); + wxT("BMP files (*.bmp)|*.bmp|") + wxT("PNG files (*.png)|*.png|") + wxT("JPEG files (*.jpg)|*.jpg|") + wxT("GIF files (*.gif)|*.gif|") + wxT("TIFF files (*.tif)|*.tif|") + wxT("PCX files (*.pcx)|*.pcx|") + wxT("ICO files (*.ico)|*.ico|") + wxT("CUR files (*.cur)|*.cur"), + wxFD_SAVE, + this); if ( savefilename.empty() ) return; - if ( image.GetOptionInt(wxIMAGE_OPTION_BMP_FORMAT) == wxBMP_8BPP_PALETTE ) - { - unsigned char *cmap = new unsigned char [256]; - for ( int i = 0; i < 256; i++ ) - cmap[i] = i; - image.SetPalette(wxPalette(256, cmap, cmap, cmap)); + wxString extension; + wxFileName::SplitPath(savefilename, NULL, NULL, &extension); - delete cmap; + bool saved = false; + if ( extension == _T("bpp") ) + { + static const int bppvalues[] = + { + wxBMP_1BPP, + wxBMP_1BPP_BW, + wxBMP_4BPP, + wxBMP_8BPP, + wxBMP_8BPP_GREY, + wxBMP_8BPP_RED, + wxBMP_8BPP_PALETTE, + wxBMP_24BPP + }; + + const wxString bppchoices[] = + { + _T("1 bpp color"), + _T("1 bpp B&W"), + _T("4 bpp color"), + _T("8 bpp color"), + _T("8 bpp greyscale"), + _T("8 bpp red"), + _T("8 bpp own palette"), + _T("24 bpp") + }; + + int bppselection = wxGetSingleChoiceIndex(_T("Set BMP BPP"), + _T("Image sample: save file"), + WXSIZEOF(bppchoices), + bppchoices, + this); + if ( bppselection != -1 ) + { + int format = bppvalues[bppselection]; + image.SetOption(wxIMAGE_OPTION_BMP_FORMAT, format); + + if ( format == wxBMP_8BPP_PALETTE ) + { + unsigned char *cmap = new unsigned char [256]; + for ( int i = 0; i < 256; i++ ) + cmap[i] = (unsigned char)i; + image.SetPalette(wxPalette(256, cmap, cmap, cmap)); + + delete[] cmap; + } + } } - - bool loaded; - wxString extension = savefilename.AfterLast('.').Lower(); - - if (extension == _T("cur")) + else if ( extension == _T("png") ) + { + static const int pngvalues[] = + { + wxPNG_TYPE_COLOUR, + wxPNG_TYPE_COLOUR, + wxPNG_TYPE_GREY, + wxPNG_TYPE_GREY, + wxPNG_TYPE_GREY_RED, + wxPNG_TYPE_GREY_RED, + }; + + const wxString pngchoices[] = + { + _T("Colour 8bpp"), + _T("Colour 16bpp"), + _T("Grey 8bpp"), + _T("Grey 16bpp"), + _T("Grey red 8bpp"), + _T("Grey red 16bpp"), + }; + + int sel = wxGetSingleChoiceIndex(_T("Set PNG format"), + _T("Image sample: save file"), + WXSIZEOF(pngchoices), + pngchoices, + this); + if ( sel != -1 ) + { + image.SetOption(wxIMAGE_OPTION_PNG_FORMAT, pngvalues[sel]); + image.SetOption(wxIMAGE_OPTION_PNG_BITDEPTH, sel % 2 ? 16 : 8); + } + } + else if ( extension == _T("cur") ) { image.Rescale(32,32); image.SetOption(wxIMAGE_OPTION_CUR_HOTSPOT_X, 0); image.SetOption(wxIMAGE_OPTION_CUR_HOTSPOT_Y, 0); // This shows how you can save an image with explicitly // specified image format: - loaded = image.SaveFile(savefilename, wxBITMAP_TYPE_CUR); + saved = image.SaveFile(savefilename, wxBITMAP_TYPE_CUR); } - else + + if ( !saved ) { // This one guesses image format from filename extension // (it may fail if the extension is not recognized): - loaded = image.SaveFile(savefilename); + image.SaveFile(savefilename); } - - if ( !loaded ) - wxMessageBox(_T("No handler for this file type."), - _T("File was not saved"), - wxOK|wxCENTRE, this); +#endif // wxUSE_FILEDLG } private: @@ -256,14 +301,41 @@ public: }; MyRawBitmapFrame(wxFrame *parent) - : wxFrame(parent, -1, _T("Raw bitmaps (how exciting)")), + : wxFrame(parent, wxID_ANY, _T("Raw bitmaps (how exciting)")), m_bitmap(SIZE, SIZE, 32) { SetClientSize(SIZE, SIZE); - wxAlphaPixelData data(m_bitmap, - wxPoint(BORDER, BORDER), - wxSize(REAL_SIZE, REAL_SIZE)); + // another possibility: wxNativePixelData (don't forget to remove code + // setting alpha in the loop below then) + typedef wxAlphaPixelData Data; + // typedef wxNativePixelData Data; + + // First, clear the whole bitmap by making it alpha + { + Data data( m_bitmap, wxPoint(0,0), wxSize(SIZE, SIZE) ); + if ( !data ) + { + wxLogError(_T("Failed to gain raw access to bitmap data")); + return; + } + data.UseAlpha(); + Data::Iterator p(data); + for ( int y = 0; y < SIZE; ++y ) + { + Data::Iterator rowStart = p; + for ( int x = 0; x < SIZE; ++x ) + { + p.Alpha() = 0; + ++p; // same as p.OffsetX(1) + } + p = rowStart; + p.OffsetY(data, 1); + } + } + + // Then, draw colourful alpha-blended stripes + Data data(m_bitmap, wxPoint(BORDER, BORDER) , wxSize(REAL_SIZE, REAL_SIZE)); if ( !data ) { wxLogError(_T("Failed to gain raw access to bitmap data")); @@ -272,11 +344,11 @@ public: data.UseAlpha(); - wxAlphaPixelData::Iterator p(data); + Data::Iterator p(data); for ( int y = 0; y < REAL_SIZE; ++y ) { - wxAlphaPixelData::Iterator rowStart = p; + Data::Iterator rowStart = p; int r = y < REAL_SIZE/3 ? 255 : 0, g = (REAL_SIZE/3 <= y) && (y < 2*(REAL_SIZE/3)) ? 255 : 0, @@ -284,11 +356,12 @@ public: for ( int x = 0; x < REAL_SIZE; ++x ) { - p.Red() = r; - p.Green() = g; - p.Blue() = b; - p.Alpha() = - (wxAlphaPixelFormat::ChannelType)((x*255.)/REAL_SIZE); + // note that RGB must be premultiplied by alpha + unsigned a = (Data::Iterator::ChannelType)((x*255.)/REAL_SIZE); + p.Red() = r * a / 256; + p.Green() = g * a / 256; + p.Blue() = b * a / 256; + p.Alpha() = a; ++p; // same as p.OffsetX(1) } @@ -304,7 +377,7 @@ public: dc.DrawText(_T("This is alpha and raw bitmap test"), 0, BORDER); dc.DrawText(_T("This is alpha and raw bitmap test"), 0, SIZE/2 - BORDER); dc.DrawText(_T("This is alpha and raw bitmap test"), 0, SIZE - 2*BORDER); - dc.DrawBitmap( m_bitmap, 0, 0, TRUE /* use mask */ ); + dc.DrawBitmap( m_bitmap, 0, 0, true /* use mask */ ); } private: @@ -329,8 +402,6 @@ IMPLEMENT_APP(MyApp) // MyCanvas -IMPLEMENT_DYNAMIC_CLASS(MyCanvas, wxScrolledWindow) - BEGIN_EVENT_TABLE(MyImageFrame, wxFrame) EVT_ERASE_BACKGROUND(MyImageFrame::OnEraseBackground) EVT_PAINT(MyImageFrame::OnPaint) @@ -352,30 +423,10 @@ END_EVENT_TABLE() MyCanvas::MyCanvas( wxWindow *parent, wxWindowID id, const wxPoint &pos, const wxSize &size ) : wxScrolledWindow( parent, id, pos, size, wxSUNKEN_BORDER ) -#if !defined(__WINDOWS__) || wxUSE_XPM_IN_MSW , m_bmpSmileXpm((const char **) smile_xpm) , m_iconSmileXpm((const char **) smile_xpm) -#endif { - my_horse_png = (wxBitmap*) NULL; - my_horse_jpeg = (wxBitmap*) NULL; - my_horse_gif = (wxBitmap*) NULL; - my_horse_bmp = (wxBitmap*) NULL; - my_horse_bmp2 = (wxBitmap*) NULL; - my_horse_pcx = (wxBitmap*) NULL; - my_horse_pnm = (wxBitmap*) NULL; - my_horse_tiff = (wxBitmap*) NULL; - my_horse_xpm = (wxBitmap*) NULL; - my_horse_ico32 = (wxBitmap*) NULL; - my_horse_ico16 = (wxBitmap*) NULL; - my_horse_ico = (wxBitmap*) NULL; - my_horse_cur = (wxBitmap*) NULL; - my_horse_ani = (wxBitmap*) NULL; - - my_smile_xbm = (wxBitmap*) NULL; - my_square = (wxBitmap*) NULL; - my_anti = (wxBitmap*) NULL; - + my_horse_ani = NULL; m_ani_images = 0 ; SetBackgroundColour(* wxWHITE); @@ -409,14 +460,26 @@ MyCanvas::MyCanvas( wxWindow *parent, wxWindowID id, image.Destroy(); if ( image.LoadFile( dir + _T("test.png") ) ) - my_square = new wxBitmap( image ); + my_square = wxBitmap( image ); image.Destroy(); if ( !image.LoadFile( dir + _T("horse.png")) ) wxLogError(wxT("Can't load PNG image")); else - my_horse_png = new wxBitmap( image ); + my_horse_png = wxBitmap( image ); + + if ( !image.LoadFile( dir + _T("toucan.png")) ) + wxLogError(wxT("Can't load PNG image")); + else + my_toucan = wxBitmap(image); + + my_toucan_flipped_horiz = wxBitmap(image.Mirror(true)); + my_toucan_flipped_vert = wxBitmap(image.Mirror(false)); + my_toucan_flipped_both = wxBitmap(image.Mirror(true).Mirror(false)); + my_toucan_grey = wxBitmap(image.ConvertToGreyscale()); + my_toucan_head = wxBitmap(image.GetSubImage(wxRect(40, 7, 80, 60))); + #endif // wxUSE_LIBPNG #if wxUSE_LIBJPEG @@ -425,7 +488,20 @@ MyCanvas::MyCanvas( wxWindow *parent, wxWindowID id, if ( !image.LoadFile( dir + _T("horse.jpg")) ) wxLogError(wxT("Can't load JPG image")); else - my_horse_jpeg = new wxBitmap( image ); + { + my_horse_jpeg = wxBitmap( image ); + + // Colorize by rotating green hue to red + wxImage::HSVValue greenHSV = wxImage::RGBtoHSV(wxImage::RGBValue(0, 255, 0)); + wxImage::HSVValue redHSV = wxImage::RGBtoHSV(wxImage::RGBValue(255, 0, 0)); + image.RotateHue(redHSV.hue - greenHSV.hue); + colorized_horse_jpeg = wxBitmap( image ); + } + + if ( !image.LoadFile( dir + _T("cmyk.jpg")) ) + wxLogError(_T("Can't load CMYK JPG image")); + else + my_cmyk_jpeg = wxBitmap(image); #endif // wxUSE_LIBJPEG #if wxUSE_GIF @@ -434,7 +510,7 @@ MyCanvas::MyCanvas( wxWindow *parent, wxWindowID id, if ( !image.LoadFile( dir + _T("horse.gif" )) ) wxLogError(wxT("Can't load GIF image")); else - my_horse_gif = new wxBitmap( image ); + my_horse_gif = wxBitmap( image ); #endif #if wxUSE_PCX @@ -443,7 +519,7 @@ MyCanvas::MyCanvas( wxWindow *parent, wxWindowID id, if ( !image.LoadFile( dir + _T("horse.pcx"), wxBITMAP_TYPE_PCX ) ) wxLogError(wxT("Can't load PCX image")); else - my_horse_pcx = new wxBitmap( image ); + my_horse_pcx = wxBitmap( image ); #endif image.Destroy(); @@ -451,7 +527,7 @@ MyCanvas::MyCanvas( wxWindow *parent, wxWindowID id, if ( !image.LoadFile( dir + _T("horse.bmp"), wxBITMAP_TYPE_BMP ) ) wxLogError(wxT("Can't load BMP image")); else - my_horse_bmp = new wxBitmap( image ); + my_horse_bmp = wxBitmap( image ); #if wxUSE_XPM image.Destroy(); @@ -459,7 +535,7 @@ MyCanvas::MyCanvas( wxWindow *parent, wxWindowID id, if ( !image.LoadFile( dir + _T("horse.xpm"), wxBITMAP_TYPE_XPM ) ) wxLogError(wxT("Can't load XPM image")); else - my_horse_xpm = new wxBitmap( image ); + my_horse_xpm = wxBitmap( image ); if ( !image.SaveFile( dir + _T("test.xpm"), wxBITMAP_TYPE_XPM )) wxLogError(wxT("Can't save file")); @@ -471,7 +547,21 @@ MyCanvas::MyCanvas( wxWindow *parent, wxWindowID id, if ( !image.LoadFile( dir + _T("horse.pnm"), wxBITMAP_TYPE_PNM ) ) wxLogError(wxT("Can't load PNM image")); else - my_horse_pnm = new wxBitmap( image ); + my_horse_pnm = wxBitmap( image ); + + image.Destroy(); + + if ( !image.LoadFile( dir + _T("horse_ag.pnm"), wxBITMAP_TYPE_PNM ) ) + wxLogError(wxT("Can't load PNM image")); + else + my_horse_asciigrey_pnm = wxBitmap( image ); + + image.Destroy(); + + if ( !image.LoadFile( dir + _T("horse_rg.pnm"), wxBITMAP_TYPE_PNM ) ) + wxLogError(wxT("Can't load PNM image")); + else + my_horse_rawgrey_pnm = wxBitmap( image ); #endif #if wxUSE_LIBTIFF @@ -480,19 +570,17 @@ MyCanvas::MyCanvas( wxWindow *parent, wxWindowID id, if ( !image.LoadFile( dir + _T("horse.tif"), wxBITMAP_TYPE_TIF ) ) wxLogError(wxT("Can't load TIFF image")); else - my_horse_tiff = new wxBitmap( image ); + my_horse_tiff = wxBitmap( image ); #endif CreateAntiAliasedBitmap(); - my_smile_xbm = new wxBitmap( (const char*)smile_bits, smile_width, + my_smile_xbm = wxBitmap( (const char*)smile_bits, smile_width, smile_height, 1 ); -#if !defined(__WINDOWS__) || wxUSE_XPM_IN_MSW // demonstrates XPM automatically using the mask when saving if ( m_bmpSmileXpm.Ok() ) m_bmpSmileXpm.SaveFile(_T("saved.xpm"), wxBITMAP_TYPE_XPM); -#endif #if wxUSE_ICO_CUR image.Destroy(); @@ -500,21 +588,21 @@ MyCanvas::MyCanvas( wxWindow *parent, wxWindowID id, if ( !image.LoadFile( dir + _T("horse.ico"), wxBITMAP_TYPE_ICO, 0 ) ) wxLogError(wxT("Can't load first ICO image")); else - my_horse_ico32 = new wxBitmap( image ); + my_horse_ico32 = wxBitmap( image ); image.Destroy(); if ( !image.LoadFile( dir + _T("horse.ico"), wxBITMAP_TYPE_ICO, 1 ) ) wxLogError(wxT("Can't load second ICO image")); else - my_horse_ico16 = new wxBitmap( image ); + my_horse_ico16 = wxBitmap( image ); image.Destroy(); if ( !image.LoadFile( dir + _T("horse.ico") ) ) wxLogError(wxT("Can't load best ICO image")); else - my_horse_ico = new wxBitmap( image ); + my_horse_ico = wxBitmap( image ); image.Destroy(); @@ -522,7 +610,7 @@ MyCanvas::MyCanvas( wxWindow *parent, wxWindowID id, wxLogError(wxT("Can't load best ICO image")); else { - my_horse_cur = new wxBitmap( image ); + my_horse_cur = wxBitmap( image ); xH = 30 + image.GetOptionInt(wxIMAGE_OPTION_CUR_HOTSPOT_X) ; yH = 2420 + image.GetOptionInt(wxIMAGE_OPTION_CUR_HOTSPOT_Y) ; } @@ -542,7 +630,7 @@ MyCanvas::MyCanvas( wxWindow *parent, wxWindowID id, tmp << i ; wxLogError(tmp); } - else + else my_horse_ani [i] = wxBitmap( image ); } #endif // wxUSE_ICO_CUR @@ -553,17 +641,18 @@ MyCanvas::MyCanvas( wxWindow *parent, wxWindowID id, wxFile file(dir + _T("horse.bmp")); if ( file.IsOpened() ) { - off_t len = file.Length(); - void *data = malloc(len); - if ( file.Read(data, len) != len ) + wxFileOffset len = file.Length(); + size_t dataSize = (size_t)len; + void *data = malloc(dataSize); + if ( file.Read(data, dataSize) != len ) wxLogError(_T("Reading bitmap file failed")); else { - wxMemoryInputStream mis(data, len); + wxMemoryInputStream mis(data, dataSize); if ( !image.LoadFile(mis) ) wxLogError(wxT("Can't load BMP image from stream")); else - my_horse_bmp2 = new wxBitmap( image ); + my_horse_bmp2 = wxBitmap( image ); } free(data); @@ -572,23 +661,7 @@ MyCanvas::MyCanvas( wxWindow *parent, wxWindowID id, MyCanvas::~MyCanvas() { - delete my_horse_pnm; - delete my_horse_png; - delete my_horse_jpeg; - delete my_horse_gif; - delete my_horse_bmp; - delete my_horse_bmp2; - delete my_horse_pcx; - delete my_horse_tiff; - delete my_horse_xpm; - delete my_horse_ico32; - delete my_horse_ico16; - delete my_horse_ico; - delete my_horse_cur; delete [] my_horse_ani; - delete my_smile_xbm; - delete my_square; - delete my_anti; } void MyCanvas::OnPaint( wxPaintEvent &WXUNUSED(event) ) @@ -597,7 +670,8 @@ void MyCanvas::OnPaint( wxPaintEvent &WXUNUSED(event) ) PrepareDC( dc ); dc.DrawText( _T("Loaded image"), 30, 10 ); - if (my_square && my_square->Ok()) dc.DrawBitmap( *my_square, 30, 30 ); + if (my_square.Ok()) + dc.DrawBitmap( my_square, 30, 30 ); dc.DrawText( _T("Drawn directly"), 150, 10 ); dc.SetBrush( wxBrush( wxT("orange"), wxSOLID ) ); @@ -606,72 +680,112 @@ void MyCanvas::OnPaint( wxPaintEvent &WXUNUSED(event) ) dc.SetBrush( *wxWHITE_BRUSH ); dc.DrawRectangle( 170, 50, 60, 60 ); - if (my_anti && my_anti->Ok()) - dc.DrawBitmap( *my_anti, 280, 30 ); + if (my_anti.Ok()) + dc.DrawBitmap( my_anti, 280, 30 ); dc.DrawText( _T("PNG handler"), 30, 135 ); - if (my_horse_png && my_horse_png->Ok()) + if (my_horse_png.Ok()) { - dc.DrawBitmap( *my_horse_png, 30, 150 ); + dc.DrawBitmap( my_horse_png, 30, 150 ); wxRect rect(0,0,100,100); - wxBitmap sub( my_horse_png->GetSubBitmap(rect) ); - dc.DrawText( _T("GetSubBitmap()"), 280, 190 ); - dc.DrawBitmap( sub, 280, 210 ); + wxBitmap sub( my_horse_png.GetSubBitmap(rect) ); + dc.DrawText( _T("GetSubBitmap()"), 280, 175 ); + dc.DrawBitmap( sub, 280, 195 ); } dc.DrawText( _T("JPEG handler"), 30, 365 ); - if (my_horse_jpeg && my_horse_jpeg->Ok()) - dc.DrawBitmap( *my_horse_jpeg, 30, 380 ); + if (my_horse_jpeg.Ok()) + dc.DrawBitmap( my_horse_jpeg, 30, 380 ); + + dc.DrawText( _T("Green rotated to red"), 280, 365 ); + if (colorized_horse_jpeg.Ok()) + dc.DrawBitmap( colorized_horse_jpeg, 280, 380 ); + + dc.DrawText( _T("CMYK JPEG image"), 530, 365 ); + if (my_cmyk_jpeg.Ok()) + dc.DrawBitmap( my_cmyk_jpeg, 530, 380 ); dc.DrawText( _T("GIF handler"), 30, 595 ); - if (my_horse_gif && my_horse_gif->Ok()) - dc.DrawBitmap( *my_horse_gif, 30, 610 ); + if (my_horse_gif.Ok()) + dc.DrawBitmap( my_horse_gif, 30, 610 ); dc.DrawText( _T("PCX handler"), 30, 825 ); - if (my_horse_pcx && my_horse_pcx->Ok()) - dc.DrawBitmap( *my_horse_pcx, 30, 840 ); + if (my_horse_pcx.Ok()) + dc.DrawBitmap( my_horse_pcx, 30, 840 ); dc.DrawText( _T("BMP handler"), 30, 1055 ); - if (my_horse_bmp && my_horse_bmp->Ok()) - dc.DrawBitmap( *my_horse_bmp, 30, 1070 ); + if (my_horse_bmp.Ok()) + dc.DrawBitmap( my_horse_bmp, 30, 1070 ); dc.DrawText( _T("BMP read from memory"), 280, 1055 ); - if (my_horse_bmp2 && my_horse_bmp2->Ok()) - dc.DrawBitmap( *my_horse_bmp2, 280, 1070 ); + if (my_horse_bmp2.Ok()) + dc.DrawBitmap( my_horse_bmp2, 280, 1070 ); dc.DrawText( _T("PNM handler"), 30, 1285 ); - if (my_horse_pnm && my_horse_pnm->Ok()) - dc.DrawBitmap( *my_horse_pnm, 30, 1300 ); + if (my_horse_pnm.Ok()) + dc.DrawBitmap( my_horse_pnm, 30, 1300 ); + + dc.DrawText( _T("PNM handler (ascii grey)"), 280, 1285 ); + if (my_horse_asciigrey_pnm.Ok()) + dc.DrawBitmap( my_horse_asciigrey_pnm, 280, 1300 ); + + dc.DrawText( _T("PNM handler (raw grey)"), 530, 1285 ); + if (my_horse_rawgrey_pnm.Ok()) + dc.DrawBitmap( my_horse_rawgrey_pnm, 530, 1300 ); dc.DrawText( _T("TIFF handler"), 30, 1515 ); - if (my_horse_tiff && my_horse_tiff->Ok()) - dc.DrawBitmap( *my_horse_tiff, 30, 1530 ); + if (my_horse_tiff.Ok()) + dc.DrawBitmap( my_horse_tiff, 30, 1530 ); dc.DrawText( _T("XPM handler"), 30, 1745 ); - if (my_horse_xpm && my_horse_xpm->Ok()) - dc.DrawBitmap( *my_horse_xpm, 30, 1760 ); + if (my_horse_xpm.Ok()) + dc.DrawBitmap( my_horse_xpm, 30, 1760 ); + // toucans + { + int x = 750, y = 10, yy = 170; + + dc.DrawText(wxT("Original toucan"), x+50, y); + dc.DrawBitmap(my_toucan, x, y+15); + y += yy; + dc.DrawText(wxT("Flipped horizontally"), x+50, y); + dc.DrawBitmap(my_toucan_flipped_horiz, x, y+15); + y += yy; + dc.DrawText(wxT("Flipped vertically"), x+50, y); + dc.DrawBitmap(my_toucan_flipped_vert, x, y+15); + y += yy; + dc.DrawText(wxT("Flipped both h&v"), x+50, y); + dc.DrawBitmap(my_toucan_flipped_both, x, y+15); + + y += yy; + dc.DrawText(wxT("In greyscale"), x+50, y); + dc.DrawBitmap(my_toucan_grey, x, y+15); + + y += yy; + dc.DrawText(wxT("Toucan's head"), x+50, y); + dc.DrawBitmap(my_toucan_head, x, y+15); + } - if (my_smile_xbm && my_smile_xbm->Ok()) + if (my_smile_xbm.Ok()) { dc.DrawText( _T("XBM bitmap"), 30, 1975 ); dc.DrawText( _T("(green on red)"), 30, 1990 ); dc.SetTextForeground( _T("GREEN") ); dc.SetTextBackground( _T("RED") ); - dc.DrawBitmap( *my_smile_xbm, 30, 2010 ); + dc.DrawBitmap( my_smile_xbm, 30, 2010 ); - dc.SetTextForeground( wxT("BLACK") ); + dc.SetTextForeground( *wxBLACK ); dc.DrawText( _T("After wxImage conversion"), 150, 1975 ); dc.DrawText( _T("(red on white)"), 150, 1990 ); dc.SetTextForeground( wxT("RED") ); - wxImage i = my_smile_xbm->ConvertToImage(); + wxImage i = my_smile_xbm.ConvertToImage(); i.SetMaskColour( 255, 255, 255 ); i.Replace( 0, 0, 0, wxRED_PEN->GetColour().Red(), wxRED_PEN->GetColour().Green(), wxRED_PEN->GetColour().Blue() ); - dc.DrawBitmap( wxBitmap(i), 150, 2010, TRUE ); - dc.SetTextForeground( wxT("BLACK") ); + dc.DrawBitmap( wxBitmap(i), 150, 2010, true ); + dc.SetTextForeground( *wxBLACK ); } @@ -682,7 +796,10 @@ void MyCanvas::OnPaint( wxPaintEvent &WXUNUSED(event) ) memdc.SetBrush( *wxWHITE_BRUSH ); memdc.DrawRectangle( 0,0,60,50 ); memdc.SetTextForeground( *wxBLACK ); +#ifndef __WXGTK20__ + // I cannot convince GTK2 to draw into mono bitmaps memdc.DrawText( _T("Hi!"), 5, 5 ); +#endif memdc.SetBrush( *wxBLACK_BRUSH ); memdc.DrawRectangle( 33,5,20,20 ); memdc.SetPen( *wxRED_PEN ); @@ -697,7 +814,7 @@ void MyCanvas::OnPaint( wxPaintEvent &WXUNUSED(event) ) dc.SetTextBackground( wxT("GREEN") ); dc.DrawBitmap( mono, 30, 2130 ); - dc.SetTextForeground( wxT("BLACK") ); + dc.SetTextForeground( *wxBLACK ); dc.DrawText( _T("After wxImage conversion"), 150, 2095 ); dc.DrawText( _T("(red on white)"), 150, 2110 ); dc.SetTextForeground( wxT("RED") ); @@ -707,49 +824,78 @@ void MyCanvas::OnPaint( wxPaintEvent &WXUNUSED(event) ) wxRED_PEN->GetColour().Red(), wxRED_PEN->GetColour().Green(), wxRED_PEN->GetColour().Blue() ); - dc.DrawBitmap( wxBitmap(i), 150, 2130, TRUE ); - dc.SetTextForeground( wxT("BLACK") ); + dc.DrawBitmap( wxBitmap(i), 150, 2130, true ); + dc.SetTextForeground( *wxBLACK ); } - dc.DrawText(_T("XPM bitmap"), 30, 2230); + // For testing transparency + dc.SetBrush( *wxRED_BRUSH ); + dc.DrawRectangle( 20, 2220, 560, 68 ); + + dc.DrawText(_T("XPM bitmap"), 30, 2230 ); if ( m_bmpSmileXpm.Ok() ) - { - dc.DrawBitmap(m_bmpSmileXpm, 30, 2250, TRUE); - } + dc.DrawBitmap(m_bmpSmileXpm, 30, 2250, true); - dc.DrawText(_T("XPM icon"), 150, 2230); + dc.DrawText(_T("XPM icon"), 110, 2230 ); if ( m_iconSmileXpm.Ok() ) + dc.DrawIcon(m_iconSmileXpm, 110, 2250); + + // testing icon -> bitmap conversion + wxBitmap to_blit( m_iconSmileXpm ); + if (to_blit.Ok()) { - dc.DrawIcon(m_iconSmileXpm, 150, 2250); + dc.DrawText( _T("SubBitmap"), 170, 2230 ); + wxBitmap sub = to_blit.GetSubBitmap( wxRect(0,0,15,15) ); + if (sub.Ok()) + dc.DrawBitmap( sub, 170, 2250, true ); + + dc.DrawText( _T("Enlarged"), 250, 2230 ); + dc.SetUserScale( 1.5, 1.5 ); + dc.DrawBitmap( to_blit, (int)(250/1.5), (int)(2250/1.5), true ); + dc.SetUserScale( 2, 2 ); + dc.DrawBitmap( to_blit, (int)(300/2), (int)(2250/2), true ); + dc.SetUserScale( 1.0, 1.0 ); + + dc.DrawText( _T("Blit"), 400, 2230); + wxMemoryDC blit_dc; + blit_dc.SelectObject( to_blit ); + dc.Blit( 400, 2250, to_blit.GetWidth(), to_blit.GetHeight(), &blit_dc, 0, 0, wxCOPY, true ); + dc.SetUserScale( 1.5, 1.5 ); + dc.Blit( (int)(450/1.5), (int)(2250/1.5), to_blit.GetWidth(), to_blit.GetHeight(), &blit_dc, 0, 0, wxCOPY, true ); + dc.SetUserScale( 2, 2 ); + dc.Blit( (int)(500/2), (int)(2250/2), to_blit.GetWidth(), to_blit.GetHeight(), &blit_dc, 0, 0, wxCOPY, true ); + dc.SetUserScale( 1.0, 1.0 ); } dc.DrawText( _T("ICO handler (1st image)"), 30, 2290 ); - if (my_horse_ico32 && my_horse_ico32->Ok()) - dc.DrawBitmap( *my_horse_ico32, 30, 2330, TRUE ); + if (my_horse_ico32.Ok()) + dc.DrawBitmap( my_horse_ico32, 30, 2330, true ); dc.DrawText( _T("ICO handler (2nd image)"), 230, 2290 ); - if (my_horse_ico16 && my_horse_ico16->Ok()) - dc.DrawBitmap( *my_horse_ico16, 230, 2330, TRUE ); + if (my_horse_ico16.Ok()) + dc.DrawBitmap( my_horse_ico16, 230, 2330, true ); dc.DrawText( _T("ICO handler (best image)"), 430, 2290 ); - if (my_horse_ico && my_horse_ico->Ok()) - dc.DrawBitmap( *my_horse_ico, 430, 2330, TRUE ); + if (my_horse_ico.Ok()) + dc.DrawBitmap( my_horse_ico, 430, 2330, true ); dc.DrawText( _T("CUR handler"), 30, 2390 ); - if (my_horse_cur && my_horse_cur->Ok()) + if (my_horse_cur.Ok()) { - dc.DrawBitmap( *my_horse_cur, 30, 2420, TRUE ); + dc.DrawBitmap( my_horse_cur, 30, 2420, true ); dc.SetPen (*wxRED_PEN); dc.DrawLine (xH-10,yH,xH+10,yH); dc.DrawLine (xH,yH-10,xH,yH+10); } + dc.DrawText( _T("ANI handler"), 230, 2390 ); - int i ; - for (i=0; i < m_ani_images; i ++) + for ( int i=0; i < m_ani_images; i++ ) + { if (my_horse_ani[i].Ok()) { - dc.DrawBitmap( my_horse_ani[i], 230 + i * 2 * my_horse_ani[i].GetWidth() , 2420, TRUE ); + dc.DrawBitmap( my_horse_ani[i], 230 + i * 2 * my_horse_ani[i].GetWidth() , 2420, true ); } + } } void MyCanvas::CreateAntiAliasedBitmap() @@ -764,12 +910,12 @@ void MyCanvas::CreateAntiAliasedBitmap() dc.SetFont( wxFont( 24, wxDECORATIVE, wxNORMAL, wxNORMAL) ); dc.SetTextForeground( wxT("RED") ); - dc.DrawText( _T("This is anti-aliased Text."), 20, 20 ); - dc.DrawText( _T("And a Rectangle."), 20, 60 ); + dc.DrawText( _T("This is anti-aliased Text."), 20, 5 ); + dc.DrawText( _T("And a Rectangle."), 20, 45 ); dc.SetBrush( *wxRED_BRUSH ); dc.SetPen( *wxTRANSPARENT_PEN ); - dc.DrawRoundedRectangle( 20, 100, 200, 180, 20 ); + dc.DrawRoundedRectangle( 20, 85, 200, 180, 20 ); wxImage original= bitmap.ConvertToImage(); wxImage anti( 150, 150 ); @@ -796,19 +942,19 @@ void MyCanvas::CreateAntiAliasedBitmap() original.GetBlue( x*2, y*2+1 ) + original.GetBlue( x*2+1, y*2+1 ); blue = blue/4; - anti.SetRGB( x, y, red, green, blue ); + anti.SetRGB( x, y, (unsigned char)red, (unsigned char)green, (unsigned char)blue ); } - my_anti = new wxBitmap(anti); + my_anti = wxBitmap(anti); } // MyFrame enum { - ID_QUIT = 108, - ID_ABOUT, - ID_NEW, - ID_SHOWRAW + ID_QUIT = wxID_EXIT, + ID_ABOUT = wxID_ABOUT, + ID_NEW = 100, + ID_SHOWRAW = 101 }; IMPLEMENT_DYNAMIC_CLASS( MyFrame, wxFrame ) @@ -828,8 +974,8 @@ BEGIN_EVENT_TABLE(MyFrame,wxFrame) END_EVENT_TABLE() MyFrame::MyFrame() - : wxFrame( (wxFrame *)NULL, -1, _T("wxImage sample"), - wxPoint(20,20), wxSize(470,360) ) + : wxFrame( (wxFrame *)NULL, wxID_ANY, _T("wxImage sample"), + wxPoint(20, 20), wxSize(950, 700) ) { wxMenuBar *menu_bar = new wxMenuBar(); @@ -854,19 +1000,21 @@ MyFrame::MyFrame() SetMenuBar( menu_bar ); +#if wxUSE_STATUSBAR CreateStatusBar(2); int widths[] = { -1, 100 }; SetStatusWidths( 2, widths ); +#endif // wxUSE_STATUSBAR - m_canvas = new MyCanvas( this, -1, wxPoint(0,0), wxSize(10,10) ); + m_canvas = new MyCanvas( this, wxID_ANY, wxPoint(0,0), wxSize(10,10) ); - // 500 width * 2500 height - m_canvas->SetScrollbars( 10, 10, 50, 250 ); + // 500 width * 2750 height + m_canvas->SetScrollbars( 10, 10, 50, 275 ); } void MyFrame::OnQuit( wxCommandEvent &WXUNUSED(event) ) { - Close( TRUE ); + Close( true ); } void MyFrame::OnAbout( wxCommandEvent &WXUNUSED(event) ) @@ -878,6 +1026,7 @@ void MyFrame::OnAbout( wxCommandEvent &WXUNUSED(event) ) void MyFrame::OnNewFrame( wxCommandEvent &WXUNUSED(event) ) { +#if wxUSE_FILEDLG wxString filename = wxFileSelector(_T("Select image file")); if ( !filename ) return; @@ -891,11 +1040,12 @@ void MyFrame::OnNewFrame( wxCommandEvent &WXUNUSED(event) ) } (new MyImageFrame(this, wxBitmap(image)))->Show(); +#endif // wxUSE_FILEDLG } #ifdef wxHAVE_RAW_BITMAP -void MyFrame::OnTestRawBitmap( wxCommandEvent &event ) +void MyFrame::OnTestRawBitmap( wxCommandEvent &WXUNUSED(event) ) { (new MyRawBitmapFrame(this))->Show(); } @@ -907,7 +1057,7 @@ void MyFrame::OnTestRawBitmap( wxCommandEvent &event ) void MyFrame::OnCopy(wxCommandEvent& WXUNUSED(event)) { wxBitmapDataObject *dobjBmp = new wxBitmapDataObject; - dobjBmp->SetBitmap(*m_canvas->my_horse_png); + dobjBmp->SetBitmap(m_canvas->my_horse_png); wxTheClipboard->Open(); @@ -978,8 +1128,7 @@ bool MyApp::OnInit() #endif wxFrame *frame = new MyFrame(); - frame->Show( TRUE ); + frame->Show( true ); - return TRUE; + return true; } -