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wxWidgets/samples/image/image.cpp

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///////////////////////////////////////////////////////////////////////////////
// Name: samples/image/image.cpp
// Purpose: sample showing operations with wxImage
// Author: Robert Roebling
// Modified by: Francesco Montorsi
// 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"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
#ifndef WX_PRECOMP
#include "wx/wx.h"
#endif
#include "wx/image.h"
#include "wx/file.h"
#include "wx/filename.h"
#include "wx/mstream.h"
#include "wx/wfstream.h"
#include "wx/quantize.h"
#include "wx/stopwatch.h"
#if wxUSE_CLIPBOARD
#include "wx/dataobj.h"
#include "wx/clipbrd.h"
#endif // wxUSE_CLIPBOARD
#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
#include "canvas.h"
// ============================================================================
// declarations
// ============================================================================
//-----------------------------------------------------------------------------
// MyApp
//-----------------------------------------------------------------------------
class MyApp: public wxApp
{
public:
virtual bool OnInit();
};
// ----------------------------------------------------------------------------
// MyFrame
// ----------------------------------------------------------------------------
class MyFrame: public wxFrame
{
public:
MyFrame();
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
void OnQuit( wxCommandEvent &event );
#if wxUSE_CLIPBOARD
void OnCopy(wxCommandEvent& event);
void OnPaste(wxCommandEvent& event);
#endif // wxUSE_CLIPBOARD
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 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))
{
// do nothing here to be able to see how transparent images are shown
}
void OnPaint(wxPaintEvent& WXUNUSED(event))
{
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(wxCommandEvent& WXUNUSED(event))
{
#if wxUSE_FILEDLG
wxImage image = m_bitmap.ConvertToImage();
wxString savefilename = wxFileSelector( wxT("Save Image"),
wxEmptyString,
wxEmptyString,
(const wxChar *)NULL,
wxT("BMP files (*.bmp)|*.bmp|")
wxT("PNG files (*.png)|*.png|")
wxT("JPEG files (*.jpg)|*.jpg|")
wxT("GIF files (*.gif)|*.gif|")
wxT("TIFF files (*.tif)|*.tif|")
wxT("PCX files (*.pcx)|*.pcx|")
wxT("ICO files (*.ico)|*.ico|")
wxT("CUR files (*.cur)|*.cur"),
wxFD_SAVE,
this);
if ( savefilename.empty() )
return;
wxString extension;
wxFileName::SplitPath(savefilename, NULL, NULL, &extension);
bool saved = false;
if ( extension == _T("bmp") )
{
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);
// 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") )
{
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);
}
#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()
};
#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, 24),
m_alphaBitmap(SIZE, SIZE, 32)
{
SetClientSize(SIZE, SIZE*2+25);
InitAlphaBitmap();
InitBitmap();
}
void InitAlphaBitmap()
{
// First, clear the whole bitmap by making it alpha
{
wxAlphaPixelData data( m_alphaBitmap, wxPoint(0,0), wxSize(SIZE, SIZE) );
if ( !data )
{
wxLogError(_T("Failed to gain raw access to bitmap data"));
return;
}
wxAlphaPixelData::Iterator p(data);
for ( int y = 0; y < SIZE; ++y )
{
wxAlphaPixelData::Iterator rowStart = p;
for ( int x = 0; x < SIZE; ++x )
{
p.Alpha() = 0;
++p; // same as p.OffsetX(1)
}
p = rowStart;
p.OffsetY(data, 1);
}
}
// Then, draw colourful alpha-blended stripes
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;
}
wxAlphaPixelData::Iterator p(data);
for ( int y = 0; y < REAL_SIZE; ++y )
{
wxAlphaPixelData::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 = (wxAlphaPixelData::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 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_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()
};
#endif // wxHAVE_RAW_BITMAP
// ============================================================================
// implementations
// ============================================================================
//-----------------------------------------------------------------------------
// MyImageFrame
//-----------------------------------------------------------------------------
BEGIN_EVENT_TABLE(MyImageFrame, wxFrame)
EVT_ERASE_BACKGROUND(MyImageFrame::OnEraseBackground)
EVT_PAINT(MyImageFrame::OnPaint)
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)
EVT_PAINT(MyRawBitmapFrame::OnPaint)
END_EVENT_TABLE()
#endif // wxHAVE_RAW_BITMAP
//-----------------------------------------------------------------------------
// MyFrame
//-----------------------------------------------------------------------------
enum
{
ID_QUIT = wxID_EXIT,
ID_ABOUT = wxID_ABOUT,
ID_NEW = 100,
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)
EVT_MENU (ID_INFO, MyFrame::OnImageInfo)
EVT_MENU (ID_SHOWTHUMBNAIL, MyFrame::OnThumbnail)
#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, wxID_ANY, _T("wxImage sample"),
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"));
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) );
// 500 width * 2750 height
m_canvas->SetScrollbars( 10, 10, 50, 275 );
}
void MyFrame::OnQuit( wxCommandEvent &WXUNUSED(event) )
{
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 );
}
wxString MyFrame::LoadUserImage(wxImage& image)
{
wxString filename;
#if wxUSE_FILEDLG
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;
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() )
{
// 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
case wxIMAGE_RESOLUTION_NONE:
info += " in default units";
break;
case wxIMAGE_RESOLUTION_INCHES:
info += " in";
break;
case wxIMAGE_RESOLUTION_CM:
info += " cm";
break;
}
}
wxLogMessage("%s", info);
}
}
#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, _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();
frame->Show( true );
return true;
}
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