X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/1d5b7a0be4977b291d37d582717d99d7afd24f33..61c213fe224da24ce33c9187263e75a17ca83a04:/samples/image/image.cpp?ds=sidebyside diff --git a/samples/image/image.cpp b/samples/image/image.cpp index d944c5c757..7bfe2db778 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" @@ -19,6 +21,30 @@ #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" + +#if wxUSE_CLIPBOARD + #include "wx/dataobj.h" + #include "wx/clipbrd.h" +#endif // wxUSE_CLIPBOARD + +#include "smile.xbm" +#include "smile.xpm" + +#if defined(__WXMSW__) + #ifdef wxHAVE_RAW_BITMAP + #include "wx/rawbmp.h" + #endif +#endif + +#if defined(__WXMAC__) || defined(__WXGTK__) + #define wxHAVE_RAW_BITMAP + #include "wx/rawbmp.h" +#endif // derived classes @@ -30,34 +56,301 @@ class MyApp; class MyCanvas: public wxScrolledWindow { public: - MyCanvas() {}; + MyCanvas() {} MyCanvas( wxWindow *parent, wxWindowID, const wxPoint &pos, const wxSize &size ); ~MyCanvas(); void OnPaint( wxPaintEvent &event ); + void CreateAntiAliasedBitmap(); - wxBitmap *my_horse; + 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; + + int xH, yH ; + int m_ani_images ; + +protected: + wxBitmap m_bmpSmileXpm; + wxIcon m_iconSmileXpm; +private: DECLARE_DYNAMIC_CLASS(MyCanvas) DECLARE_EVENT_TABLE() }; + // MyFrame + class MyFrame: public wxFrame { public: MyFrame(); void OnAbout( wxCommandEvent &event ); + void OnNewFrame( wxCommandEvent &event ); +#ifdef wxHAVE_RAW_BITMAP + void OnTestRawBitmap( wxCommandEvent &event ); +#endif // wxHAVE_RAW_BITMAP void OnQuit( wxCommandEvent &event ); +#if wxUSE_CLIPBOARD + void OnCopy(wxCommandEvent& event); + void OnPaste(wxCommandEvent& event); +#endif // wxUSE_CLIPBOARD + MyCanvas *m_canvas; +private: DECLARE_DYNAMIC_CLASS(MyFrame) DECLARE_EVENT_TABLE() }; +class MyImageFrame : public wxFrame +{ +public: + MyImageFrame(wxFrame *parent, const wxBitmap& bitmap) + : wxFrame(parent, wxID_ANY, _T("Double click to save"), + wxDefaultPosition, wxDefaultSize, + wxCAPTION | wxSYSTEM_MENU | wxCLOSE_BOX), + m_bitmap(bitmap) + { + SetClientSize(bitmap.GetWidth(), bitmap.GetHeight()); + } + + void OnEraseBackground(wxEraseEvent& WXUNUSED(event)) + { + // do nothing here to be able to see how transparent images are shown + } + + void OnPaint(wxPaintEvent& WXUNUSED(event)) + { + wxPaintDC dc( this ); + dc.DrawBitmap( m_bitmap, 0, 0, true /* use mask */ ); + } + + void OnSave(wxMouseEvent& WXUNUSED(event)) + { + wxImage image = m_bitmap.ConvertToImage(); + + wxString savefilename = wxFileSelector( wxT("Save Image"), + wxT(""), + wxT(""), + (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, + this); + + if ( savefilename.empty() ) + return; + + wxString extension; + wxFileName::SplitPath(savefilename, NULL, NULL, &extension); + + 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; + } + } + } + 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: + saved = image.SaveFile(savefilename, wxBITMAP_TYPE_CUR); + } + + if ( !saved ) + { + // This one guesses image format from filename extension + // (it may fail if the extension is not recognized): + image.SaveFile(savefilename); + } + } + +private: + wxBitmap m_bitmap; + + DECLARE_EVENT_TABLE() +}; + +#ifdef wxHAVE_RAW_BITMAP + +#include "wx/rawbmp.h" + +class MyRawBitmapFrame : public wxFrame +{ +public: + enum + { + BORDER = 15, + SIZE = 150, + REAL_SIZE = SIZE - 2*BORDER + }; + + MyRawBitmapFrame(wxFrame *parent) + : wxFrame(parent, wxID_ANY, _T("Raw bitmaps (how exciting)")), + m_bitmap(SIZE, SIZE, 32) + { + SetClientSize(SIZE, SIZE); + + // another possibility: wxNativePixelData (don't forget to remove code + // setting alpha in the loop below then) + typedef wxAlphaPixelData Data; + + Data data(m_bitmap, wxPoint(BORDER, BORDER), wxSize(REAL_SIZE, REAL_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 < REAL_SIZE; ++y ) + { + Data::Iterator rowStart = p; + + int r = y < REAL_SIZE/3 ? 255 : 0, + g = (REAL_SIZE/3 <= y) && (y < 2*(REAL_SIZE/3)) ? 255 : 0, + b = 2*(REAL_SIZE/3) <= y ? 255 : 0; + + for ( int x = 0; x < REAL_SIZE; ++x ) + { + // 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) + } + + p = rowStart; + p.OffsetY(data, 1); + } + } + + void OnPaint(wxPaintEvent& WXUNUSED(event)) + { + wxPaintDC dc( this ); + 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 */ ); + } + +private: + wxBitmap m_bitmap; + + DECLARE_EVENT_TABLE() +}; + +#endif // wxHAVE_RAW_BITMAP + // MyApp class MyApp: public wxApp @@ -74,122 +367,684 @@ IMPLEMENT_APP(MyApp) IMPLEMENT_DYNAMIC_CLASS(MyCanvas, wxScrolledWindow) +BEGIN_EVENT_TABLE(MyImageFrame, wxFrame) + EVT_ERASE_BACKGROUND(MyImageFrame::OnEraseBackground) + EVT_PAINT(MyImageFrame::OnPaint) + EVT_LEFT_DCLICK(MyImageFrame::OnSave) +END_EVENT_TABLE() + +#ifdef wxHAVE_RAW_BITMAP + +BEGIN_EVENT_TABLE(MyRawBitmapFrame, wxFrame) + EVT_PAINT(MyRawBitmapFrame::OnPaint) +END_EVENT_TABLE() + +#endif // wxHAVE_RAW_BITMAP + BEGIN_EVENT_TABLE(MyCanvas, wxScrolledWindow) EVT_PAINT(MyCanvas::OnPaint) END_EVENT_TABLE() -MyCanvas::MyCanvas( wxWindow *parent, const wxWindowID id, +MyCanvas::MyCanvas( wxWindow *parent, wxWindowID id, const wxPoint &pos, const wxSize &size ) : wxScrolledWindow( parent, id, pos, size, wxSUNKEN_BORDER ) + , m_bmpSmileXpm((const char **) smile_xpm) + , m_iconSmileXpm((const char **) smile_xpm) { - SetBackgroundColour(* wxWHITE); + 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; - wxBitmap bitmap( 100, 100 ); + my_smile_xbm = (wxBitmap*) NULL; + my_square = (wxBitmap*) NULL; + my_anti = (wxBitmap*) NULL; - wxMemoryDC dc; - dc.SelectObject( bitmap ); - dc.SetBrush( wxBrush( "orange", wxSOLID ) ); - dc.SetPen( *wxWHITE_PEN ); - dc.DrawRectangle( 0, 0, 100, 100 ); - dc.SelectObject( wxNullBitmap ); + m_ani_images = 0 ; + + SetBackgroundColour(* wxWHITE); + + wxBitmap bitmap( 100, 100 ); + + wxMemoryDC dc; + dc.SelectObject( bitmap ); + dc.SetBrush( wxBrush( wxT("orange"), wxSOLID ) ); + dc.SetPen( *wxBLACK_PEN ); + dc.DrawRectangle( 0, 0, 100, 100 ); + dc.SetBrush( *wxWHITE_BRUSH ); + dc.DrawRectangle( 20, 20, 60, 60 ); + dc.SelectObject( wxNullBitmap ); + + // try to find the directory with our images + wxString dir; + if ( wxFile::Exists(wxT("./horse.png")) ) + dir = wxT("./"); + else if ( wxFile::Exists(wxT("../horse.png")) ) + dir = wxT("../"); + else + wxLogWarning(wxT("Can't find image files in either '.' or '..'!")); + + wxImage image = bitmap.ConvertToImage(); + +#if wxUSE_LIBPNG + if ( !image.SaveFile( dir + _T("test.png"), wxBITMAP_TYPE_PNG )) + wxLogError(wxT("Can't save file")); + + image.Destroy(); + + if ( image.LoadFile( dir + _T("test.png") ) ) + my_square = new 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 ); +#endif // wxUSE_LIBPNG - wxString dir(""); +#if wxUSE_LIBJPEG + image.Destroy(); -#ifdef __WXGTK__ - dir = wxString("../"); + if ( !image.LoadFile( dir + _T("horse.jpg")) ) + wxLogError(wxT("Can't load JPG image")); + else + my_horse_jpeg = new wxBitmap( image ); +#endif // wxUSE_LIBJPEG + +#if wxUSE_GIF + image.Destroy(); + + if ( !image.LoadFile( dir + _T("horse.gif" )) ) + wxLogError(wxT("Can't load GIF image")); + else + my_horse_gif = new wxBitmap( image ); +#endif + +#if wxUSE_PCX + image.Destroy(); + + if ( !image.LoadFile( dir + _T("horse.pcx"), wxBITMAP_TYPE_PCX ) ) + wxLogError(wxT("Can't load PCX image")); + else + my_horse_pcx = new wxBitmap( image ); +#endif + + image.Destroy(); + + if ( !image.LoadFile( dir + _T("horse.bmp"), wxBITMAP_TYPE_BMP ) ) + wxLogError(wxT("Can't load BMP image")); + else + my_horse_bmp = new wxBitmap( image ); + +#if wxUSE_XPM + image.Destroy(); + + if ( !image.LoadFile( dir + _T("horse.xpm"), wxBITMAP_TYPE_XPM ) ) + wxLogError(wxT("Can't load XPM image")); + else + my_horse_xpm = new wxBitmap( image ); + + if ( !image.SaveFile( dir + _T("test.xpm"), wxBITMAP_TYPE_XPM )) + wxLogError(wxT("Can't save file")); +#endif + +#if wxUSE_PNM + image.Destroy(); + + if ( !image.LoadFile( dir + _T("horse.pnm"), wxBITMAP_TYPE_PNM ) ) + wxLogError(wxT("Can't load PNM image")); + else + my_horse_pnm = new wxBitmap( image ); +#endif + +#if wxUSE_LIBTIFF + image.Destroy(); + + if ( !image.LoadFile( dir + _T("horse.tif"), wxBITMAP_TYPE_TIF ) ) + wxLogError(wxT("Can't load TIFF image")); + else + my_horse_tiff = new wxBitmap( image ); #endif - wxImage image( bitmap ); - image.SaveFile( dir + wxString("test.png"), wxBITMAP_TYPE_PNG ); + CreateAntiAliasedBitmap(); + + my_smile_xbm = new wxBitmap( (const char*)smile_bits, smile_width, + smile_height, 1 ); + + // demonstrates XPM automatically using the mask when saving + if ( m_bmpSmileXpm.Ok() ) + m_bmpSmileXpm.SaveFile(_T("saved.xpm"), wxBITMAP_TYPE_XPM); + +#if wxUSE_ICO_CUR + image.Destroy(); + + 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 ); + + 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 ); + + image.Destroy(); - image.LoadFile( dir + wxString("horse.png"), wxBITMAP_TYPE_PNG ); - image.SetRGB( 0, 0, 250, 0, 0 ); - image.SetRGB( 1, 0, 100, 100, 100 ); - image.SetRGB( 2, 0, 250, 250, 250 ); - my_horse = new wxBitmap( image.ConvertToBitmap() ); + if ( !image.LoadFile( dir + _T("horse.ico") ) ) + wxLogError(wxT("Can't load best ICO image")); + else + my_horse_ico = new wxBitmap( image ); - image.LoadFile( dir + wxString("test.png"), wxBITMAP_TYPE_PNG ); - my_square = new wxBitmap( image.ConvertToBitmap() ); + image.Destroy(); + + if ( !image.LoadFile( dir + _T("horse.cur"), wxBITMAP_TYPE_CUR ) ) + wxLogError(wxT("Can't load best ICO image")); + else + { + my_horse_cur = new wxBitmap( image ); + xH = 30 + image.GetOptionInt(wxIMAGE_OPTION_CUR_HOTSPOT_X) ; + yH = 2420 + image.GetOptionInt(wxIMAGE_OPTION_CUR_HOTSPOT_Y) ; + } + + m_ani_images = wxImage::GetImageCount ( dir + _T("horse3.ani"), wxBITMAP_TYPE_ANI ); + if (m_ani_images==0) + wxLogError(wxT("No ANI-format images found")); + else + my_horse_ani = new wxBitmap [m_ani_images]; + int i ; + for (i=0; i < m_ani_images; i++) + { + image.Destroy(); + if (!image.LoadFile( dir + _T("horse3.ani"), wxBITMAP_TYPE_ANI, i )) + { + wxString tmp = wxT("Can't load image number "); + tmp << i ; + wxLogError(tmp); + } + else + my_horse_ani [i] = wxBitmap( image ); + } +#endif // wxUSE_ICO_CUR + + image.Destroy(); + + // test image loading from stream + wxFile file(dir + _T("horse.bmp")); + if ( file.IsOpened() ) + { + 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, dataSize); + if ( !image.LoadFile(mis) ) + wxLogError(wxT("Can't load BMP image from stream")); + else + my_horse_bmp2 = new wxBitmap( image ); + } + + free(data); + } } MyCanvas::~MyCanvas() { - delete my_horse; - delete my_square; + 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) ) { - wxPaintDC dc( this ); - PrepareDC( dc ); + wxPaintDC dc( this ); + PrepareDC( dc ); + + dc.DrawText( _T("Loaded image"), 30, 10 ); + if (my_square && my_square->Ok()) dc.DrawBitmap( *my_square, 30, 30 ); + + dc.DrawText( _T("Drawn directly"), 150, 10 ); + dc.SetBrush( wxBrush( wxT("orange"), wxSOLID ) ); + dc.SetPen( *wxBLACK_PEN ); + dc.DrawRectangle( 150, 30, 100, 100 ); + dc.SetBrush( *wxWHITE_BRUSH ); + dc.DrawRectangle( 170, 50, 60, 60 ); + + if (my_anti && my_anti->Ok()) + dc.DrawBitmap( *my_anti, 280, 30 ); + + dc.DrawText( _T("PNG handler"), 30, 135 ); + if (my_horse_png && my_horse_png->Ok()) + { + 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 ); + } + + dc.DrawText( _T("JPEG handler"), 30, 365 ); + if (my_horse_jpeg && my_horse_jpeg->Ok()) + dc.DrawBitmap( *my_horse_jpeg, 30, 380 ); + + dc.DrawText( _T("GIF handler"), 30, 595 ); + if (my_horse_gif && 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 ); + + dc.DrawText( _T("BMP handler"), 30, 1055 ); + if (my_horse_bmp && 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 ); + + dc.DrawText( _T("PNM handler"), 30, 1285 ); + if (my_horse_pnm && my_horse_pnm->Ok()) + dc.DrawBitmap( *my_horse_pnm, 30, 1300 ); + + dc.DrawText( _T("TIFF handler"), 30, 1515 ); + if (my_horse_tiff && 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_smile_xbm && 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.SetTextForeground( wxT("BLACK") ); + 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(); + 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") ); + } + + + wxBitmap mono( 60,50,1 ); + wxMemoryDC memdc; + memdc.SelectObject( mono ); + memdc.SetPen( *wxBLACK_PEN ); + 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 ); + memdc.DrawLine( 5, 42, 50, 42 ); + memdc.SelectObject( wxNullBitmap ); + + if (mono.Ok()) + { + dc.DrawText( _T("Mono bitmap"), 30, 2095 ); + dc.DrawText( _T("(red on green)"), 30, 2110 ); + dc.SetTextForeground( wxT("RED") ); + dc.SetTextBackground( wxT("GREEN") ); + dc.DrawBitmap( mono, 30, 2130 ); + + dc.SetTextForeground( wxT("BLACK") ); + dc.DrawText( _T("After wxImage conversion"), 150, 2095 ); + dc.DrawText( _T("(red on white)"), 150, 2110 ); + dc.SetTextForeground( wxT("RED") ); + wxImage i = mono.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, 2130, true ); + dc.SetTextForeground( wxT("BLACK") ); + } + + // 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.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.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 ); + + 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 ); + + 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 ); + + dc.DrawText( _T("CUR handler"), 30, 2390 ); + if (my_horse_cur && my_horse_cur->Ok()) + { + 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 ++) + if (my_horse_ani[i].Ok()) + { + dc.DrawBitmap( my_horse_ani[i], 230 + i * 2 * my_horse_ani[i].GetWidth() , 2420, true ); + } +} + +void MyCanvas::CreateAntiAliasedBitmap() +{ + wxBitmap bitmap( 300, 300 ); + + wxMemoryDC dc; + + dc.SelectObject( bitmap ); - dc.DrawText( "Loaded image", 30, 100 ); - if (my_square->Ok()) dc.DrawBitmap( *my_square, 30, 120 ); + dc.Clear(); - dc.DrawText( "Drawn directly", 150, 100 ); - dc.SetBrush( wxBrush( "orange", wxSOLID ) ); - dc.SetPen( *wxWHITE_PEN ); - dc.DrawRectangle( 150, 120, 100, 100 ); + 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 ); - if (my_horse->Ok()) dc.DrawBitmap( *my_horse, 30, 240 ); + dc.SetBrush( *wxRED_BRUSH ); + dc.SetPen( *wxTRANSPARENT_PEN ); + dc.DrawRoundedRectangle( 20, 100, 200, 180, 20 ); + + wxImage original= bitmap.ConvertToImage(); + wxImage anti( 150, 150 ); + + /* This is quite slow, but safe. Use wxImage::GetData() for speed instead. */ + + for (int y = 1; y < 149; y++) + for (int x = 1; x < 149; x++) + { + int red = original.GetRed( x*2, y*2 ) + + original.GetRed( x*2-1, y*2 ) + + original.GetRed( x*2, y*2+1 ) + + original.GetRed( x*2+1, y*2+1 ); + red = red/4; + + int green = original.GetGreen( x*2, y*2 ) + + original.GetGreen( x*2-1, y*2 ) + + original.GetGreen( x*2, y*2+1 ) + + original.GetGreen( x*2+1, y*2+1 ); + green = green/4; + + int blue = original.GetBlue( x*2, y*2 ) + + original.GetBlue( x*2-1, y*2 ) + + original.GetBlue( x*2, y*2+1 ) + + original.GetBlue( x*2+1, y*2+1 ); + blue = blue/4; + anti.SetRGB( x, y, (unsigned char)red, (unsigned char)green, (unsigned char)blue ); + } + my_anti = new wxBitmap(anti); } // MyFrame -const int ID_QUIT = 108; -const int ID_ABOUT = 109; +enum +{ + ID_QUIT = 108, + ID_ABOUT, + ID_NEW, + ID_SHOWRAW +}; IMPLEMENT_DYNAMIC_CLASS( MyFrame, wxFrame ) BEGIN_EVENT_TABLE(MyFrame,wxFrame) EVT_MENU (ID_ABOUT, MyFrame::OnAbout) EVT_MENU (ID_QUIT, MyFrame::OnQuit) + EVT_MENU (ID_NEW, MyFrame::OnNewFrame) +#ifdef wxHAVE_RAW_BITMAP + EVT_MENU (ID_SHOWRAW, MyFrame::OnTestRawBitmap) +#endif + +#if wxUSE_CLIPBOARD + EVT_MENU(wxID_COPY, MyFrame::OnCopy) + EVT_MENU(wxID_PASTE, MyFrame::OnPaste) +#endif // wxUSE_CLIPBOARD END_EVENT_TABLE() MyFrame::MyFrame() - : wxFrame( (wxFrame *)NULL, -1, "wxImage sample", + : wxFrame( (wxFrame *)NULL, wxID_ANY, _T("wxImage sample"), wxPoint(20,20), wxSize(470,360) ) { - wxMenu *file_menu = new wxMenu(); - file_menu->Append( ID_ABOUT, "About.."); - file_menu->Append( ID_QUIT, "Exit"); - wxMenuBar *menu_bar = new wxMenuBar(); - menu_bar->Append(file_menu, "File"); + + wxMenu *menuImage = new wxMenu; + menuImage->Append( ID_NEW, _T("&Show any image...\tCtrl-O")); + +#ifdef wxHAVE_RAW_BITMAP + menuImage->Append( ID_SHOWRAW, _T("Test &raw bitmap...\tCtrl-R")); +#endif + menuImage->AppendSeparator(); + menuImage->Append( ID_ABOUT, _T("&About...")); + menuImage->AppendSeparator(); + menuImage->Append( ID_QUIT, _T("E&xit\tCtrl-Q")); + menu_bar->Append(menuImage, _T("&Image")); + +#if wxUSE_CLIPBOARD + wxMenu *menuClipboard = new wxMenu; + menuClipboard->Append(wxID_COPY, _T("&Copy test image\tCtrl-C")); + menuClipboard->Append(wxID_PASTE, _T("&Paste image\tCtrl-V")); + menu_bar->Append(menuClipboard, _T("&Clipboard")); +#endif // wxUSE_CLIPBOARD SetMenuBar( menu_bar ); +#if wxUSE_STATUSBAR CreateStatusBar(2); int widths[] = { -1, 100 }; SetStatusWidths( 2, widths ); +#endif // wxUSE_STATUSBAR + + m_canvas = new MyCanvas( this, wxID_ANY, wxPoint(0,0), wxSize(10,10) ); - m_canvas = new MyCanvas( this, -1, wxPoint(0,0), wxSize(10,10) ); - m_canvas->SetScrollbars( 10, 10, 50, 50 ); + // 500 width * 2500 height + m_canvas->SetScrollbars( 10, 10, 50, 250 ); } void MyFrame::OnQuit( wxCommandEvent &WXUNUSED(event) ) { - Close( TRUE ); + Close( true ); } void MyFrame::OnAbout( wxCommandEvent &WXUNUSED(event) ) { - (void)wxMessageBox( "wxImage demo\n" - "Robert Roebling (c) 1998", - "About wxImage Demo", wxICON_INFORMATION | wxOK ); + (void)wxMessageBox( _T("wxImage demo\n") + _T("Robert Roebling (c) 1998,2000"), + _T("About wxImage Demo"), wxICON_INFORMATION | wxOK ); +} + +void MyFrame::OnNewFrame( wxCommandEvent &WXUNUSED(event) ) +{ + wxString filename = wxFileSelector(_T("Select image file")); + if ( !filename ) + return; + + wxImage image; + if ( !image.LoadFile(filename) ) + { + wxLogError(_T("Couldn't load image from '%s'."), filename.c_str()); + + return; + } + + (new MyImageFrame(this, wxBitmap(image)))->Show(); +} + +#ifdef wxHAVE_RAW_BITMAP + +void MyFrame::OnTestRawBitmap( wxCommandEvent &WXUNUSED(event) ) +{ + (new MyRawBitmapFrame(this))->Show(); } +#endif // wxHAVE_RAW_BITMAP + +#if wxUSE_CLIPBOARD + +void MyFrame::OnCopy(wxCommandEvent& WXUNUSED(event)) +{ + wxBitmapDataObject *dobjBmp = new wxBitmapDataObject; + dobjBmp->SetBitmap(*m_canvas->my_horse_png); + + wxTheClipboard->Open(); + + if ( !wxTheClipboard->SetData(dobjBmp) ) + { + wxLogError(_T("Failed to copy bitmap to clipboard")); + } + + wxTheClipboard->Close(); +} + +void MyFrame::OnPaste(wxCommandEvent& WXUNUSED(event)) +{ + wxBitmapDataObject dobjBmp; + + wxTheClipboard->Open(); + if ( !wxTheClipboard->GetData(dobjBmp) ) + { + wxLogMessage(_T("No bitmap data in the clipboard")); + } + else + { + (new MyImageFrame(this, dobjBmp.GetBitmap()))->Show(); + } + wxTheClipboard->Close(); +} + +#endif // wxUSE_CLIPBOARD + //----------------------------------------------------------------------------- // MyApp //----------------------------------------------------------------------------- bool MyApp::OnInit() { +#if wxUSE_LIBPNG wxImage::AddHandler( new wxPNGHandler ); +#endif + +#if wxUSE_LIBJPEG + wxImage::AddHandler( new wxJPEGHandler ); +#endif + +#if wxUSE_LIBTIFF + wxImage::AddHandler( new wxTIFFHandler ); +#endif + +#if wxUSE_GIF + wxImage::AddHandler( new wxGIFHandler ); +#endif + +#if wxUSE_PCX + wxImage::AddHandler( new wxPCXHandler ); +#endif + +#if wxUSE_PNM + wxImage::AddHandler( new wxPNMHandler ); +#endif + +#if wxUSE_XPM + wxImage::AddHandler( new wxXPMHandler ); +#endif + +#if wxUSE_ICO_CUR + wxImage::AddHandler( new wxICOHandler ); + wxImage::AddHandler( new wxCURHandler ); + wxImage::AddHandler( new wxANIHandler ); +#endif wxFrame *frame = new MyFrame(); - frame->Show( TRUE ); + frame->Show( true ); - return TRUE; + return true; }