// Name: samples/image/image.cpp
// Purpose: sample showing operations with wxImage
// Author: Robert Roebling
-// Modified by:
+// Modified by: Francesco Montorsi
// Created: 1998
// RCS-ID: $Id$
// Copyright: (c) 1998-2005 Robert Roebling
#include "wx/mstream.h"
#include "wx/wfstream.h"
#include "wx/quantize.h"
+#include "wx/stopwatch.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"
#include "wx/rawbmp.h"
#endif
-// derived classes
+#include "canvas.h"
-class MyFrame;
-class MyApp;
+#ifndef __WXMSW__
+ #include "../sample.xpm"
+#endif
-// MyCanvas
+// ============================================================================
+// declarations
+// ============================================================================
-class MyCanvas: public wxScrolledWindow
+//-----------------------------------------------------------------------------
+// MyApp
+//-----------------------------------------------------------------------------
+
+class MyApp: public wxApp
{
public:
- 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_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;
- wxBitmap *my_horse_ani;
-
-private:
- wxBitmap m_bmpSmileXpm;
- wxIcon m_iconSmileXpm;
-
- DECLARE_EVENT_TABLE()
+ virtual bool OnInit();
};
-
+// ----------------------------------------------------------------------------
// MyFrame
-
+// ----------------------------------------------------------------------------
class MyFrame: public wxFrame
{
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
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"),
- wxDefaultPosition, wxDefaultSize,
- wxCAPTION | wxSYSTEM_MENU | wxCLOSE_BOX),
- m_bitmap(bitmap)
+ MyImageFrame(wxFrame *parent, const wxString& desc, const wxBitmap& bitmap)
+ : wxFrame(parent, wxID_ANY,
+ wxString::Format(_T("Image from %s"), desc.c_str()),
+ wxDefaultPosition, wxDefaultSize,
+ 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))
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();
};
int bppselection = wxGetSingleChoiceIndex(_T("Set BMP BPP"),
- _T("Image sample: save file"),
- WXSIZEOF(bppchoices),
- bppchoices,
- this);
+ _T("Image sample: save file"),
+ WXSIZEOF(bppchoices),
+ bppchoices,
+ this);
if ( bppselection != -1 )
{
int format = bppvalues[bppselection];
};
int sel = wxGetSingleChoiceIndex(_T("Set PNG format"),
- _T("Image sample: save file"),
- WXSIZEOF(pngchoices),
- pngchoices,
- this);
+ _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);
+
+ // these values are taken from OptiPNG with -o3 switch
+ const wxString compressionChoices[] =
+ {
+ _T("compression = 9, memory = 8, strategy = 0, filter = 0"),
+ _T("compression = 9, memory = 9, strategy = 0, filter = 0"),
+ _T("compression = 9, memory = 8, strategy = 1, filter = 0"),
+ _T("compression = 9, memory = 9, strategy = 1, filter = 0"),
+ _T("compression = 1, memory = 8, strategy = 2, filter = 0"),
+ _T("compression = 1, memory = 9, strategy = 2, filter = 0"),
+ _T("compression = 9, memory = 8, strategy = 0, filter = 5"),
+ _T("compression = 9, memory = 9, strategy = 0, filter = 5"),
+ _T("compression = 9, memory = 8, strategy = 1, filter = 5"),
+ _T("compression = 9, memory = 9, strategy = 1, filter = 5"),
+ _T("compression = 1, memory = 8, strategy = 2, filter = 5"),
+ _T("compression = 1, memory = 9, strategy = 2, filter = 5"),
+ };
+
+ int sel = wxGetSingleChoiceIndex(_T("Select compression option (Cancel to use default)\n"),
+ _T("PNG Compression Options"),
+ WXSIZEOF(compressionChoices),
+ compressionChoices,
+ this);
+ if (sel != -1)
+ {
+ const int zc[] = {9, 9, 9, 9, 1, 1, 9, 9, 9, 9, 1, 1};
+ const int zm[] = {8, 9, 8, 9, 8, 9, 8, 9, 8, 9, 8, 9};
+ const int zs[] = {0, 0, 1, 1, 2, 2, 0, 0, 1, 1, 2, 2};
+ const int f[] = {0x08, 0x08, 0x08, 0x08, 0x08, 0x08,
+ 0xF8, 0xF8, 0xF8, 0xF8, 0xF8, 0xF8};
+
+ image.SetOption(wxIMAGE_OPTION_PNG_COMPRESSION_LEVEL , zc[sel]);
+ image.SetOption(wxIMAGE_OPTION_PNG_COMPRESSION_MEM_LEVEL , zm[sel]);
+ image.SetOption(wxIMAGE_OPTION_PNG_COMPRESSION_STRATEGY , zs[sel]);
+ image.SetOption(wxIMAGE_OPTION_PNG_FILTER , f[sel]);
+ image.SetOption(wxIMAGE_OPTION_PNG_COMPRESSION_BUFFER_SIZE, 1048576); // 1 MB
+ }
}
}
else if ( extension == _T("cur") )
#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()
};
MyRawBitmapFrame(wxFrame *parent)
: wxFrame(parent, wxID_ANY, _T("Raw bitmaps (how exciting)")),
- m_bitmap(SIZE, SIZE, 24),
- m_alphaBitmap(SIZE, SIZE, 32)
+ m_bitmap(SIZE, SIZE, 24),
+ m_alphaBitmap(SIZE, SIZE, 32)
{
SetClientSize(SIZE, SIZE*2+25);
wxLogError(_T("Failed to gain raw access to bitmap data"));
return;
}
- data.UseAlpha();
wxAlphaPixelData::Iterator p(data);
for ( int y = 0; y < SIZE; ++y )
{
// Then, draw colourful alpha-blended stripes
wxAlphaPixelData data(m_alphaBitmap, wxPoint(BORDER, BORDER),
- wxSize(REAL_SIZE, REAL_SIZE));
+ wxSize(REAL_SIZE, REAL_SIZE));
if ( !data )
{
wxLogError(_T("Failed to gain raw access to bitmap data"));
return;
}
- data.UseAlpha();
wxAlphaPixelData::Iterator p(data);
for ( int y = 0; y < REAL_SIZE; ++y )
#endif // wxHAVE_RAW_BITMAP
-// MyApp
-
-class MyApp: public wxApp
-{
-public:
- virtual bool OnInit();
-};
-
-// main program
-IMPLEMENT_APP(MyApp)
+// ============================================================================
+// implementations
+// ============================================================================
-// MyCanvas
+//-----------------------------------------------------------------------------
+// MyImageFrame
+//-----------------------------------------------------------------------------
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()
+//-----------------------------------------------------------------------------
+// MyRawBitmapFrame
+//-----------------------------------------------------------------------------
+
#ifdef wxHAVE_RAW_BITMAP
BEGIN_EVENT_TABLE(MyRawBitmapFrame, wxFrame)
#endif // wxHAVE_RAW_BITMAP
-BEGIN_EVENT_TABLE(MyCanvas, wxScrolledWindow)
- 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(smile_xpm)
- , m_iconSmileXpm(smile_xpm)
-{
- my_horse_ani = NULL;
- 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 = wxBitmap( image );
-
- image.Destroy();
-
- if ( !image.LoadFile( dir + _T("horse.png")) )
- wxLogError(wxT("Can't load PNG image"));
- else
- 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
- image.Destroy();
-
- if ( !image.LoadFile( dir + _T("horse.jpg")) )
- wxLogError(wxT("Can't load JPG image"));
- else
- {
- 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
- image.Destroy();
-
- if ( !image.LoadFile( dir + _T("horse.gif" )) )
- wxLogError(wxT("Can't load GIF image"));
- else
- my_horse_gif = 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 = 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 = 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 = 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 = 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
- image.Destroy();
-
- if ( !image.LoadFile( dir + _T("horse.tif"), wxBITMAP_TYPE_TIF ) )
- wxLogError(wxT("Can't load TIFF image"));
- else
- 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 = 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 = 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 = wxBitmap( image );
-
- image.Destroy();
-
- if ( !image.LoadFile( dir + _T("horse.ico") ) )
- wxLogError(wxT("Can't load best ICO image"));
- else
- my_horse_ico = wxBitmap( image );
-
- image.Destroy();
-
- if ( !image.LoadFile( dir + _T("horse.cur"), wxBITMAP_TYPE_CUR ) )
- wxLogError(wxT("Can't load best ICO image"));
- else
- {
- my_horse_cur = 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 = wxBitmap( image );
- }
-
- free(data);
- }
-}
-
-MyCanvas::~MyCanvas()
-{
- delete [] my_horse_ani;
-}
-
-void MyCanvas::OnPaint( wxPaintEvent &WXUNUSED(event) )
-{
- wxPaintDC dc( this );
- PrepareDC( dc );
-
- dc.DrawText( _T("Loaded image"), 30, 10 );
- if (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.Ok())
- dc.DrawBitmap( my_anti, 280, 30 );
-
- dc.DrawText( _T("PNG handler"), 30, 135 );
- if (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, 175 );
- dc.DrawBitmap( sub, 280, 195 );
- }
-
- dc.DrawText( _T("JPEG handler"), 30, 365 );
- 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.Ok())
- dc.DrawBitmap( my_horse_gif, 30, 610 );
-
- dc.DrawText( _T("PCX handler"), 30, 825 );
- if (my_horse_pcx.Ok())
- dc.DrawBitmap( my_horse_pcx, 30, 840 );
-
- dc.DrawText( _T("BMP handler"), 30, 1055 );
- 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.Ok())
- dc.DrawBitmap( my_horse_bmp2, 280, 1070 );
-
- dc.DrawText( _T("PNM handler"), 30, 1285 );
- 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.Ok())
- dc.DrawBitmap( my_horse_tiff, 30, 1530 );
-
- 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 );
-
- // toucans
- {
- 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, x, y + 30 );
-
- 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();
- 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), x + 120, y + 30, true );
- dc.SetTextForeground( *wxBLACK );
- }
-
-
- 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())
- {
- 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, x, y + 30 );
-
- 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 );
- i.Replace( 0,0,0,
- wxRED_PEN->GetColour().Red(),
- wxRED_PEN->GetColour().Green(),
- wxRED_PEN->GetColour().Blue() );
- dc.DrawBitmap( wxBitmap(i), x + 120, y + 30, true );
- dc.SetTextForeground( *wxBLACK );
- }
-
- // 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.Ok())
- dc.DrawBitmap( my_horse_ico32, 30, 2330, true );
-
- dc.DrawText( _T("ICO handler (2nd image)"), 230, 2290 );
- 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.Ok())
- dc.DrawBitmap( my_horse_ico, 430, 2330, true );
-
- dc.DrawText( _T("CUR handler"), 30, 2390 );
- if (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 );
- 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 );
- }
- }
-}
-
-void MyCanvas::CreateAntiAliasedBitmap()
-{
- wxBitmap bitmap( 300, 300 );
-
- wxMemoryDC dc;
-
- dc.SelectObject( bitmap );
-
- dc.Clear();
-
- dc.SetFont( wxFont( 24, wxDECORATIVE, wxNORMAL, wxNORMAL) );
- dc.SetTextForeground( wxT("RED") );
- 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, 85, 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 = wxBitmap(anti);
-}
-
+//-----------------------------------------------------------------------------
// MyFrame
+//-----------------------------------------------------------------------------
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)
- EVT_MENU (ID_ABOUT, MyFrame::OnAbout)
- EVT_MENU (ID_QUIT, MyFrame::OnQuit)
- EVT_MENU (ID_NEW, MyFrame::OnNewFrame)
+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_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
EVT_MENU(wxID_COPY, MyFrame::OnCopy)
EVT_MENU(wxID_PASTE, MyFrame::OnPaste)
END_EVENT_TABLE()
MyFrame::MyFrame()
- : wxFrame( (wxFrame *)NULL, wxID_ANY, _T("wxImage sample"),
- wxPoint(20, 20), wxSize(950, 700) )
+ : wxFrame( (wxFrame *)NULL, wxID_ANY, _T("wxImage sample"),
+ wxPoint(20, 20), wxSize(950, 700) )
{
- wxMenuBar *menu_bar = new wxMenuBar();
+ SetIcon(wxICON(sample));
- wxMenu *menuImage = new wxMenu;
- menuImage->Append( ID_NEW, _T("&Show any image...\tCtrl-O"));
+ 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->Append( ID_SHOWRAW, _T("Test &raw bitmap...\tCtrl-R"));
+ menuImage->AppendSeparator();
+ 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"));
+ 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"));
+ 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"));
+ 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 );
+ SetMenuBar( menu_bar );
#if wxUSE_STATUSBAR
- CreateStatusBar(2);
- int widths[] = { -1, 100 };
- SetStatusWidths( 2, widths );
+ 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, wxID_ANY, wxPoint(0,0), wxSize(10,10) );
- // 500 width * 2750 height
- m_canvas->SetScrollbars( 10, 10, 50, 275 );
+ // 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) )
{
- (void)wxMessageBox( _T("wxImage demo\n")
- _T("Robert Roebling (c) 1998,2000"),
- _T("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 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
}
else
{
- (new MyImageFrame(this, dobjBmp.GetBitmap()))->Show();
+ (new MyImageFrame(this, _T("Clipboard"), dobjBmp.GetBitmap()))->Show();
}
wxTheClipboard->Close();
}
#endif // wxUSE_CLIPBOARD
+void MyFrame::OnThumbnail( wxCommandEvent &WXUNUSED(event) )
+{
+#if wxUSE_FILEDLG
+ wxString filename = wxFileSelector(_T("Select image file"));
+ if ( filename.empty() )
+ return;
+
+ static const int THUMBNAIL_WIDTH = 320;
+ static const int THUMBNAIL_HEIGHT = 240;
+
+ wxImage image;
+ image.SetOption(wxIMAGE_OPTION_MAX_WIDTH, THUMBNAIL_WIDTH);
+ image.SetOption(wxIMAGE_OPTION_MAX_HEIGHT, THUMBNAIL_HEIGHT);
+
+ wxStopWatch sw;
+ if ( !image.LoadFile(filename) )
+ {
+ wxLogError(_T("Couldn't load image from '%s'."), filename.c_str());
+ return;
+ }
+
+ const long loadTime = sw.Time();
+
+ 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
+}
+
//-----------------------------------------------------------------------------
// MyApp
//-----------------------------------------------------------------------------
+IMPLEMENT_APP(MyApp)
+
bool MyApp::OnInit()
{
+ if ( !wxApp::OnInit() )
+ return false;
+
wxInitAllImageHandlers();
wxFrame *frame = new MyFrame();
projects / wxWidgets.git / blobdiff