X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/6e5551ad85f73b14b02f42a26ab5609ab4b8d468..58bd3862b82749175bd04809607d82f1b22f0300:/samples/image/image.cpp?ds=sidebyside diff --git a/samples/image/image.cpp b/samples/image/image.cpp index 317fe045fb..01af647f11 100644 --- a/samples/image/image.cpp +++ b/samples/image/image.cpp @@ -17,7 +17,7 @@ #endif #ifndef WX_PRECOMP -#include "wx/wx.h" + #include "wx/wx.h" #endif #include "wx/image.h" @@ -26,6 +26,7 @@ #include "wx/mstream.h" #include "wx/wfstream.h" #include "wx/quantize.h" +#include "wx/stopwatch.h" #if wxUSE_CLIPBOARD #include "wx/dataobj.h" @@ -56,45 +57,54 @@ 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_asciigrey_pnm; - wxBitmap *my_horse_rawgrey_pnm; - - wxBitmap *colorized_horse_jpeg; + 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_tga; + 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; + wxBitmap my_toucan_scaled_normal; + wxBitmap my_toucan_scaled_high; + wxBitmap my_toucan_blur; 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() }; @@ -109,6 +119,9 @@ public: void OnAbout( wxCommandEvent &event ); void OnNewFrame( wxCommandEvent &event ); + void OnImageInfo( wxCommandEvent &event ); + void OnThumbnail( wxCommandEvent &event ); + #ifdef wxHAVE_RAW_BITMAP void OnTestRawBitmap( wxCommandEvent &event ); #endif // wxHAVE_RAW_BITMAP @@ -122,20 +135,60 @@ public: MyCanvas *m_canvas; private: + // ask user for the file name and try to load an image from it + // + // return the file path on success, empty string if we failed to load the + // image or were cancelled by user + static wxString LoadUserImage(wxImage& image); + + DECLARE_DYNAMIC_CLASS(MyFrame) DECLARE_EVENT_TABLE() }; +// ---------------------------------------------------------------------------- +// Frame used for showing a standalone image +// ---------------------------------------------------------------------------- + +enum +{ + ID_ROTATE_LEFT = wxID_HIGHEST+1, + ID_ROTATE_RIGHT, + ID_RESIZE, + ID_PAINT_BG +}; + class MyImageFrame : public wxFrame { public: - MyImageFrame(wxFrame *parent, const wxBitmap& bitmap) - : wxFrame(parent, wxID_ANY, _T("Double click to save"), + MyImageFrame(wxFrame *parent, const wxString& desc, const wxBitmap& bitmap) + : wxFrame(parent, wxID_ANY, + wxString::Format(_T("Image from %s"), desc.c_str()), wxDefaultPosition, wxDefaultSize, - wxCAPTION | wxSYSTEM_MENU | wxCLOSE_BOX), + wxDEFAULT_FRAME_STYLE | wxFULL_REPAINT_ON_RESIZE), m_bitmap(bitmap) { + wxMenu *menu = new wxMenu; + menu->Append(wxID_SAVE); + menu->AppendSeparator(); + m_pClearBgMenu = menu->AppendCheckItem(ID_PAINT_BG, _T("&Paint background")); + menu->AppendSeparator(); + menu->Append(ID_RESIZE, _T("&Fit to window\tCtrl-F")); + menu->AppendSeparator(); + menu->Append(ID_ROTATE_LEFT, _T("Rotate &left\tCtrl-L")); + menu->Append(ID_ROTATE_RIGHT, _T("Rotate &right\tCtrl-R")); + + wxMenuBar *mbar = new wxMenuBar; + mbar->Append(menu, _T("&Image")); + SetMenuBar(mbar); + + CreateStatusBar(); + SetClientSize(bitmap.GetWidth(), bitmap.GetHeight()); + + UpdateStatusBar(); + +// SetBackgroundColour(*wxWHITE); } void OnEraseBackground(wxEraseEvent& WXUNUSED(event)) @@ -145,11 +198,19 @@ public: void OnPaint(wxPaintEvent& WXUNUSED(event)) { - wxPaintDC dc( this ); - dc.DrawBitmap( m_bitmap, 0, 0, true /* use mask */ ); + wxPaintDC dc(this); + + if (m_pClearBgMenu->IsChecked()) + ClearBackground(); + + const wxSize size = GetClientSize(); + dc.DrawBitmap(m_bitmap, + (size.x - m_bitmap.GetWidth())/2, + (size.y - m_bitmap.GetHeight())/2, + true /* use mask */); } - void OnSave(wxMouseEvent& WXUNUSED(event)) + void OnSave(wxCommandEvent& WXUNUSED(event)) { #if wxUSE_FILEDLG wxImage image = m_bitmap.ConvertToImage(); @@ -166,7 +227,7 @@ public: wxT("PCX files (*.pcx)|*.pcx|") wxT("ICO files (*.ico)|*.ico|") wxT("CUR files (*.cur)|*.cur"), - wxSAVE, + wxFD_SAVE, this); if ( savefilename.empty() ) @@ -176,7 +237,7 @@ public: wxFileName::SplitPath(savefilename, NULL, NULL, &extension); bool saved = false; - if ( extension == _T("bpp") ) + if ( extension == _T("bmp") ) { static const int bppvalues[] = { @@ -275,8 +336,48 @@ public: #endif // wxUSE_FILEDLG } + void OnResize(wxCommandEvent& WXUNUSED(event)) + { + wxImage img(m_bitmap.ConvertToImage()); + + const wxSize size = GetClientSize(); + img.Rescale(size.x, size.y, wxIMAGE_QUALITY_HIGH); + m_bitmap = wxBitmap(img); + + UpdateStatusBar(); + Refresh(); + } + + void OnRotate(wxCommandEvent& event) + { + double angle = 5; + if ( event.GetId() == ID_ROTATE_LEFT ) + angle = -angle; + + wxImage img(m_bitmap.ConvertToImage()); + img = img.Rotate(angle, wxPoint(img.GetWidth() / 2, img.GetHeight() / 2)); + if ( !img.Ok() ) + { + wxLogWarning(_T("Rotation failed")); + return; + } + + m_bitmap = wxBitmap(img); + + UpdateStatusBar(); + Refresh(); + } + private: + void UpdateStatusBar() + { + wxLogStatus(this, _T("Image size: (%d, %d)"), + m_bitmap.GetWidth(), + m_bitmap.GetHeight()); + } + wxBitmap m_bitmap; + wxMenuItem* m_pClearBgMenu; DECLARE_EVENT_TABLE() }; @@ -297,28 +398,30 @@ public: MyRawBitmapFrame(wxFrame *parent) : wxFrame(parent, wxID_ANY, _T("Raw bitmaps (how exciting)")), - m_bitmap(SIZE, SIZE, 32) + m_bitmap(SIZE, SIZE, 24), + m_alphaBitmap(SIZE, SIZE, 32) { - SetClientSize(SIZE, SIZE); + SetClientSize(SIZE, SIZE*2+25); + + InitAlphaBitmap(); + InitBitmap(); - // another possibility: wxNativePixelData (don't forget to remove code - // setting alpha in the loop below then) - typedef wxAlphaPixelData Data; - // typedef wxNativePixelData Data; - + } + + void InitAlphaBitmap() + { // First, clear the whole bitmap by making it alpha { - Data data( m_bitmap, wxPoint(0,0), wxSize(SIZE, SIZE) ); + wxAlphaPixelData data( m_alphaBitmap, 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); + wxAlphaPixelData::Iterator p(data); for ( int y = 0; y < SIZE; ++y ) { - Data::Iterator rowStart = p; + wxAlphaPixelData::Iterator rowStart = p; for ( int x = 0; x < SIZE; ++x ) { p.Alpha() = 0; @@ -330,20 +433,19 @@ public: } // Then, draw colourful alpha-blended stripes - Data data(m_bitmap, wxPoint(BORDER, BORDER) , wxSize(REAL_SIZE, REAL_SIZE)); + wxAlphaPixelData data(m_alphaBitmap, 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); + wxAlphaPixelData::Iterator p(data); for ( int y = 0; y < REAL_SIZE; ++y ) { - Data::Iterator rowStart = p; + wxAlphaPixelData::Iterator rowStart = p; int r = y < REAL_SIZE/3 ? 255 : 0, g = (REAL_SIZE/3 <= y) && (y < 2*(REAL_SIZE/3)) ? 255 : 0, @@ -352,7 +454,7 @@ public: 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); + unsigned a = (wxAlphaPixelData::Iterator::ChannelType)((x*255.)/REAL_SIZE); p.Red() = r * a / 256; p.Green() = g * a / 256; p.Blue() = b * a / 256; @@ -366,17 +468,53 @@ public: } } + void InitBitmap() + { + // draw some colourful stripes without alpha + wxNativePixelData data(m_bitmap); + if ( !data ) + { + wxLogError(_T("Failed to gain raw access to bitmap data")); + return; + } + + wxNativePixelData::Iterator p(data); + for ( int y = 0; y < SIZE; ++y ) + { + wxNativePixelData::Iterator rowStart = p; + + int r = y < SIZE/3 ? 255 : 0, + g = (SIZE/3 <= y) && (y < 2*(SIZE/3)) ? 255 : 0, + b = 2*(SIZE/3) <= y ? 255 : 0; + + for ( int x = 0; x < SIZE; ++x ) + { + p.Red() = r; + p.Green() = g; + p.Blue() = b; + ++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 */ ); + dc.DrawBitmap( m_alphaBitmap, 0, 0, true /* use mask */ ); + + dc.DrawText(_T("Raw bitmap access without alpha"), 0, SIZE+5); + dc.DrawBitmap( m_bitmap, 0, SIZE+5+dc.GetCharHeight()); } private: wxBitmap m_bitmap; + wxBitmap m_alphaBitmap; DECLARE_EVENT_TABLE() }; @@ -397,12 +535,13 @@ IMPLEMENT_APP(MyApp) // MyCanvas -IMPLEMENT_DYNAMIC_CLASS(MyCanvas, wxScrolledWindow) - BEGIN_EVENT_TABLE(MyImageFrame, wxFrame) EVT_ERASE_BACKGROUND(MyImageFrame::OnEraseBackground) EVT_PAINT(MyImageFrame::OnPaint) - EVT_LEFT_DCLICK(MyImageFrame::OnSave) + + EVT_MENU(wxID_SAVE, MyImageFrame::OnSave) + EVT_MENU_RANGE(ID_ROTATE_LEFT, ID_ROTATE_RIGHT, MyImageFrame::OnRotate) + EVT_MENU(ID_RESIZE, MyImageFrame::OnResize) END_EVENT_TABLE() #ifdef wxHAVE_RAW_BITMAP @@ -414,38 +553,16 @@ END_EVENT_TABLE() #endif // wxHAVE_RAW_BITMAP BEGIN_EVENT_TABLE(MyCanvas, wxScrolledWindow) - EVT_PAINT(MyCanvas::OnPaint) + EVT_PAINT(MyCanvas::OnPaint) END_EVENT_TABLE() 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) + : wxScrolledWindow( parent, id, pos, size, wxSUNKEN_BORDER ) + , m_bmpSmileXpm(smile_xpm) + , m_iconSmileXpm(smile_xpm) { - 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; - colorized_horse_jpeg = (wxBitmap*) NULL; - - my_smile_xbm = (wxBitmap*) NULL; - my_square = (wxBitmap*) NULL; - my_anti = (wxBitmap*) NULL; - - my_horse_asciigrey_pnm = (wxBitmap*) NULL; - my_horse_rawgrey_pnm = (wxBitmap*) NULL; - + my_horse_ani = NULL; m_ani_images = 0 ; SetBackgroundColour(* wxWHITE); @@ -479,14 +596,29 @@ 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))); + my_toucan_scaled_normal = wxBitmap(image.Scale(110,90,wxIMAGE_QUALITY_NORMAL)); + my_toucan_scaled_high = wxBitmap(image.Scale(110,90,wxIMAGE_QUALITY_HIGH)); + my_toucan_blur = wxBitmap(image.Blur(10)); + #endif // wxUSE_LIBPNG #if wxUSE_LIBJPEG @@ -496,13 +628,19 @@ MyCanvas::MyCanvas( wxWindow *parent, wxWindowID id, 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 = new wxBitmap( image ); + 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 @@ -511,7 +649,7 @@ 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 @@ -520,7 +658,7 @@ 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(); @@ -528,7 +666,7 @@ 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(); @@ -536,7 +674,7 @@ 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")); @@ -548,21 +686,21 @@ 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 = new wxBitmap( image ); + 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 = new wxBitmap( image ); + my_horse_rawgrey_pnm = wxBitmap( image ); #endif #if wxUSE_LIBTIFF @@ -571,12 +709,21 @@ 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 + +#if wxUSE_LIBTIFF + image.Destroy(); + + if ( !image.LoadFile( dir + _T("horse.tga"), wxBITMAP_TYPE_TGA ) ) + wxLogError(wxT("Can't load TGA image")); + else + my_horse_tga = 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 ); // demonstrates XPM automatically using the mask when saving @@ -589,21 +736,21 @@ 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(); @@ -611,7 +758,7 @@ 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) ; } @@ -653,7 +800,7 @@ MyCanvas::MyCanvas( wxWindow *parent, wxWindowID id, 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); @@ -662,26 +809,7 @@ 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; - delete my_horse_asciigrey_pnm; - delete my_horse_rawgrey_pnm; - delete colorized_horse_jpeg; } void MyCanvas::OnPaint( wxPaintEvent &WXUNUSED(event) ) @@ -690,7 +818,8 @@ 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 ) ); @@ -699,80 +828,130 @@ 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 && my_horse_asciigrey_pnm->Ok()) - dc.DrawBitmap( *my_horse_asciigrey_pnm, 280, 1300 ); + 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 && my_horse_rawgrey_pnm->Ok()) - dc.DrawBitmap( *my_horse_rawgrey_pnm, 530, 1300 ); + 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 ); + dc.DrawText( _T("TGA handler"), 30, 1745 ); + if (my_horse_tga.Ok()) + dc.DrawBitmap( my_horse_tga, 30, 1760 ); + dc.DrawText( _T("XPM handler"), 30, 1975 ); + if (my_horse_xpm.Ok()) + dc.DrawBitmap( my_horse_xpm, 30, 2000 ); - if (my_smile_xbm && my_smile_xbm->Ok()) + // toucans { - dc.DrawText( _T("XBM bitmap"), 30, 1975 ); - dc.DrawText( _T("(green on red)"), 30, 1990 ); + int x = 750, y = 10, yy = 170; + + dc.DrawText(wxT("Original toucan"), x+50, y); + dc.DrawBitmap(my_toucan, x, y+15, true); + y += yy; + dc.DrawText(wxT("Flipped horizontally"), x+50, y); + dc.DrawBitmap(my_toucan_flipped_horiz, x, y+15, true); + y += yy; + dc.DrawText(wxT("Flipped vertically"), x+50, y); + dc.DrawBitmap(my_toucan_flipped_vert, x, y+15, true); + y += yy; + dc.DrawText(wxT("Flipped both h&v"), x+50, y); + dc.DrawBitmap(my_toucan_flipped_both, x, y+15, true); + + y += yy; + dc.DrawText(wxT("In greyscale"), x+50, y); + dc.DrawBitmap(my_toucan_grey, x, y+15, true); + + y += yy; + dc.DrawText(wxT("Toucan's head"), x+50, y); + dc.DrawBitmap(my_toucan_head, x, y+15, true); + + y += yy; + dc.DrawText(wxT("Scaled with normal quality"), x+50, y); + dc.DrawBitmap(my_toucan_scaled_normal, x, y+15, true); + + y += yy; + dc.DrawText(wxT("Scaled with high quality"), x+50, y); + dc.DrawBitmap(my_toucan_scaled_high, x, y+15, true); + + y += yy; + dc.DrawText(wxT("Blured"), x+50, y); + dc.DrawBitmap(my_toucan_blur, x, y+15, true); + } + + if (my_smile_xbm.Ok()) + { + int x = 300, y = 1800; + + dc.DrawText( _T("XBM bitmap"), x, y ); + dc.DrawText( _T("(green on red)"), x, y + 15 ); dc.SetTextForeground( _T("GREEN") ); dc.SetTextBackground( _T("RED") ); - dc.DrawBitmap( *my_smile_xbm, 30, 2010 ); + dc.DrawBitmap( my_smile_xbm, x, y + 30 ); - dc.SetTextForeground( wxT("BLACK") ); - dc.DrawText( _T("After wxImage conversion"), 150, 1975 ); - dc.DrawText( _T("(red on white)"), 150, 1990 ); + dc.SetTextForeground( *wxBLACK ); + dc.DrawText( _T("After wxImage conversion"), x + 120, y ); + dc.DrawText( _T("(red on white)"), x + 120, y + 15 ); 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), x + 120, y + 30, true ); + dc.SetTextForeground( *wxBLACK ); } @@ -795,15 +974,17 @@ void MyCanvas::OnPaint( wxPaintEvent &WXUNUSED(event) ) if (mono.Ok()) { - dc.DrawText( _T("Mono bitmap"), 30, 2095 ); - dc.DrawText( _T("(red on green)"), 30, 2110 ); + int x = 300, y = 1900; + + dc.DrawText( _T("Mono bitmap"), x, y ); + dc.DrawText( _T("(red on green)"), x, y + 15 ); dc.SetTextForeground( wxT("RED") ); dc.SetTextBackground( wxT("GREEN") ); - dc.DrawBitmap( mono, 30, 2130 ); + dc.DrawBitmap( mono, x, y + 30 ); - dc.SetTextForeground( wxT("BLACK") ); - dc.DrawText( _T("After wxImage conversion"), 150, 2095 ); - dc.DrawText( _T("(red on white)"), 150, 2110 ); + dc.SetTextForeground( *wxBLACK ); + dc.DrawText( _T("After wxImage conversion"), x + 120, y ); + dc.DrawText( _T("(red on white)"), x + 120, y + 15 ); dc.SetTextForeground( wxT("RED") ); wxImage i = mono.ConvertToImage(); i.SetMaskColour( 255,255,255 ); @@ -811,8 +992,8 @@ 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), x + 120, y + 30, true ); + dc.SetTextForeground( *wxBLACK ); } // For testing transparency @@ -855,40 +1036,34 @@ void MyCanvas::OnPaint( wxPaintEvent &WXUNUSED(event) ) } 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 ); } -#if wxUSE_LIBJPEG - if (colorized_horse_jpeg) - { - dc.DrawText( _T("Colorize image by rotating green hue to red"), 30, 2490 ); - dc.DrawBitmap( *colorized_horse_jpeg, 30, 2520 ); } -#endif // wxUSE_LIBJPEG - } void MyCanvas::CreateAntiAliasedBitmap() @@ -903,12 +1078,12 @@ 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 ); @@ -937,7 +1112,7 @@ void MyCanvas::CreateAntiAliasedBitmap() blue = blue/4; anti.SetRGB( x, y, (unsigned char)red, (unsigned char)green, (unsigned char)blue ); } - my_anti = new wxBitmap(anti); + my_anti = wxBitmap(anti); } // MyFrame @@ -947,17 +1122,21 @@ enum ID_QUIT = wxID_EXIT, ID_ABOUT = wxID_ABOUT, ID_NEW = 100, - ID_SHOWRAW = 101 + ID_INFO, + ID_SHOWRAW, + ID_SHOWTHUMBNAIL }; IMPLEMENT_DYNAMIC_CLASS( MyFrame, wxFrame ) -BEGIN_EVENT_TABLE(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) + EVT_MENU (ID_NEW, MyFrame::OnNewFrame) + EVT_MENU (ID_INFO, MyFrame::OnImageInfo) + EVT_MENU (ID_SHOWTHUMBNAIL, MyFrame::OnThumbnail) #ifdef wxHAVE_RAW_BITMAP - EVT_MENU (ID_SHOWRAW, MyFrame::OnTestRawBitmap) + EVT_MENU (ID_SHOWRAW, MyFrame::OnTestRawBitmap) #endif #if wxUSE_CLIPBOARD @@ -968,17 +1147,21 @@ END_EVENT_TABLE() MyFrame::MyFrame() : wxFrame( (wxFrame *)NULL, wxID_ANY, _T("wxImage sample"), - wxPoint(20,20), wxSize(470,360) ) + wxPoint(20, 20), wxSize(950, 700) ) { wxMenuBar *menu_bar = new wxMenuBar(); wxMenu *menuImage = new wxMenu; menuImage->Append( ID_NEW, _T("&Show any image...\tCtrl-O")); - + menuImage->Append( ID_INFO, _T("Show image &information...\tCtrl-I")); #ifdef wxHAVE_RAW_BITMAP + menuImage->AppendSeparator(); menuImage->Append( ID_SHOWRAW, _T("Test &raw bitmap...\tCtrl-R")); #endif menuImage->AppendSeparator(); + menuImage->Append( ID_SHOWTHUMBNAIL, _T("Test &thumbnail...\tCtrl-T"), + "Test scaling the image during load (try with JPEG)"); + menuImage->AppendSeparator(); menuImage->Append( ID_ABOUT, _T("&About...")); menuImage->AppendSeparator(); menuImage->Append( ID_QUIT, _T("E&xit\tCtrl-Q")); @@ -1017,23 +1200,71 @@ void MyFrame::OnAbout( wxCommandEvent &WXUNUSED(event) ) _T("About wxImage Demo"), wxICON_INFORMATION | wxOK ); } -void MyFrame::OnNewFrame( wxCommandEvent &WXUNUSED(event) ) +wxString MyFrame::LoadUserImage(wxImage& image) { + wxString filename; + #if wxUSE_FILEDLG - wxString filename = wxFileSelector(_T("Select image file")); - if ( !filename ) - return; + filename = wxFileSelector(_T("Select image file")); + if ( !filename.empty() ) + { + if ( !image.LoadFile(filename) ) + { + wxLogError(_T("Couldn't load image from '%s'."), filename.c_str()); + + return wxEmptyString; + } + } +#endif // wxUSE_FILEDLG + return filename; +} + +void MyFrame::OnNewFrame( wxCommandEvent &WXUNUSED(event) ) +{ wxImage image; - if ( !image.LoadFile(filename) ) + wxString filename = LoadUserImage(image); + if ( !filename.empty() ) + (new MyImageFrame(this, filename, wxBitmap(image)))->Show(); +} + +void MyFrame::OnImageInfo( wxCommandEvent &WXUNUSED(event) ) +{ + wxImage image; + if ( !LoadUserImage(image).empty() ) { - wxLogError(_T("Couldn't load image from '%s'."), filename.c_str()); + // TODO: show more information about the file + wxString info = wxString::Format("Image size: %dx%d", + image.GetWidth(), + image.GetHeight()); + + int xres = image.GetOptionInt(wxIMAGE_OPTION_RESOLUTIONX), + yres = image.GetOptionInt(wxIMAGE_OPTION_RESOLUTIONY); + if ( xres || yres ) + { + info += wxString::Format("\nResolution: %dx%d", xres, yres); + switch ( image.GetOptionInt(wxIMAGE_OPTION_RESOLUTIONUNIT) ) + { + default: + wxFAIL_MSG( "unknown image resolution units" ); + // fall through - return; - } + case wxIMAGE_RESOLUTION_NONE: + info += " in default units"; + break; - (new MyImageFrame(this, wxBitmap(image)))->Show(); -#endif // wxUSE_FILEDLG + case wxIMAGE_RESOLUTION_INCHES: + info += " in"; + break; + + case wxIMAGE_RESOLUTION_CM: + info += " cm"; + break; + } + } + + wxLogMessage("%s", info); + } } #ifdef wxHAVE_RAW_BITMAP @@ -1050,7 +1281,7 @@ void MyFrame::OnTestRawBitmap( wxCommandEvent &WXUNUSED(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(); @@ -1073,7 +1304,7 @@ void MyFrame::OnPaste(wxCommandEvent& WXUNUSED(event)) } else { - (new MyImageFrame(this, dobjBmp.GetBitmap()))->Show(); + (new MyImageFrame(this, _T("Clipboard"), dobjBmp.GetBitmap()))->Show(); } wxTheClipboard->Close(); } @@ -1086,42 +1317,47 @@ void MyFrame::OnPaste(wxCommandEvent& WXUNUSED(event)) bool MyApp::OnInit() { -#if wxUSE_LIBPNG - wxImage::AddHandler( new wxPNGHandler ); -#endif + if ( !wxApp::OnInit() ) + return false; -#if wxUSE_LIBJPEG - wxImage::AddHandler( new wxJPEGHandler ); -#endif + wxInitAllImageHandlers(); -#if wxUSE_LIBTIFF - wxImage::AddHandler( new wxTIFFHandler ); -#endif + wxFrame *frame = new MyFrame(); + frame->Show( true ); -#if wxUSE_GIF - wxImage::AddHandler( new wxGIFHandler ); -#endif + return true; +} -#if wxUSE_PCX - wxImage::AddHandler( new wxPCXHandler ); -#endif +void MyFrame::OnThumbnail( wxCommandEvent &WXUNUSED(event) ) +{ +#if wxUSE_FILEDLG + wxString filename = wxFileSelector(_T("Select image file")); + if ( filename.empty() ) + return; -#if wxUSE_PNM - wxImage::AddHandler( new wxPNMHandler ); -#endif + static const int THUMBNAIL_WIDTH = 320; + static const int THUMBNAIL_HEIGHT = 240; -#if wxUSE_XPM - wxImage::AddHandler( new wxXPMHandler ); -#endif + wxImage image; + image.SetOption(wxIMAGE_OPTION_MAX_WIDTH, THUMBNAIL_WIDTH); + image.SetOption(wxIMAGE_OPTION_MAX_HEIGHT, THUMBNAIL_HEIGHT); -#if wxUSE_ICO_CUR - wxImage::AddHandler( new wxICOHandler ); - wxImage::AddHandler( new wxCURHandler ); - wxImage::AddHandler( new wxANIHandler ); -#endif + wxStopWatch sw; + if ( !image.LoadFile(filename) ) + { + wxLogError(_T("Couldn't load image from '%s'."), filename.c_str()); + return; + } - wxFrame *frame = new MyFrame(); - frame->Show( true ); + const long loadTime = sw.Time(); - return true; + MyImageFrame * const + frame = new MyImageFrame(this, filename, wxBitmap(image)); + frame->Show(); + wxLogStatus(frame, "Loaded \"%s\" in %ldms", filename, loadTime); +#else + wxLogError( _T("Couldn't create file selector dialog") ); + return; +#endif // wxUSE_FILEDLG } +