#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"
#if !defined(__WINDOWS__) || wxUSE_XPM_IN_MSW
#include "smile.xpm"
#endif
+#if defined(__WXMSW__) || defined(__WXMAC__)
+ #include "wx/rawbmp.h"
+ #define wxHAVE_RAW_BITMAP
+#endif
// derived classes
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:
MyImageFrame(wxFrame *parent, const wxBitmap& bitmap)
: wxFrame(parent, -1, _T("Double click to save"),
wxDefaultPosition, wxDefaultSize,
- wxCAPTION | wxSYSTEM_MENU),
+ 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 );
- //TRUE for masked images
- dc.DrawBitmap( m_bitmap, 0, 0, TRUE );
+ dc.DrawBitmap( m_bitmap, 0, 0, TRUE /* use mask */ );
}
void OnSave(wxMouseEvent& WXUNUSED(event))
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, -1, _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 )
+ {
+ p.Red() = r;
+ p.Green() = g;
+ p.Blue() = b;
+ p.Alpha() = (Data::Iterator::ChannelType)((x*255.)/REAL_SIZE);
+
+ ++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
IMPLEMENT_DYNAMIC_CLASS(MyCanvas, wxScrolledWindow)
BEGIN_EVENT_TABLE(MyImageFrame, wxFrame)
- EVT_PAINT(MyImageFrame::OnPaint)
- EVT_LEFT_DCLICK(MyImageFrame::OnSave)
+ 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()
image.Destroy();
- image.LoadFile( dir + _T("test.png") );
- my_square = new wxBitmap( image );
+ if ( image.LoadFile( dir + _T("test.png") ) )
+ my_square = new wxBitmap( image );
image.Destroy();
else
my_horse_ani [i] = wxBitmap( image );
}
-
-
-#endif
+#endif // wxUSE_ICO_CUR
image.Destroy();
// test image loading from stream
wxFile file(dir + _T("horse.bmp"));
- off_t len = file.Length();
- void *data = malloc(len);
- if ( file.Read(data, len) != len )
- wxLogError(_T("Reading bitmap file failed"));
- else
+ if ( file.IsOpened() )
{
- wxMemoryInputStream mis(data, len);
- if ( !image.LoadFile(mis) )
- wxLogError(wxT("Can't load BMP image from stream"));
+ off_t len = file.Length();
+ void *data = malloc(len);
+ if ( file.Read(data, len) != len )
+ wxLogError(_T("Reading bitmap file failed"));
else
- my_horse_bmp2 = new wxBitmap( image );
- }
+ {
+ wxMemoryInputStream mis(data, len);
+ if ( !image.LoadFile(mis) )
+ wxLogError(wxT("Can't load BMP image from stream"));
+ else
+ my_horse_bmp2 = new wxBitmap( image );
+ }
- free(data);
+ free(data);
+ }
}
MyCanvas::~MyCanvas()
// MyFrame
-const int ID_QUIT = 108;
-const int ID_ABOUT = 109;
-const int ID_NEW = 110;
+enum
+{
+ ID_QUIT = 108,
+ ID_ABOUT,
+ ID_NEW,
+ ID_SHOWRAW
+};
IMPLEMENT_DYNAMIC_CLASS( 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, _T("wxImage sample"),
wxPoint(20,20), wxSize(470,360) )
{
- wxMenu *file_menu = new wxMenu();
- file_menu->Append( ID_NEW, _T("&Show image..."));
- file_menu->AppendSeparator();
- file_menu->Append( ID_ABOUT, _T("&About..."));
- file_menu->AppendSeparator();
- file_menu->Append( ID_QUIT, _T("E&xit"));
-
wxMenuBar *menu_bar = new wxMenuBar();
- menu_bar->Append(file_menu, _T("&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 );
(new MyImageFrame(this, wxBitmap(image)))->Show();
}
+#ifdef wxHAVE_RAW_BITMAP
+
+void MyFrame::OnTestRawBitmap( wxCommandEvent &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
//-----------------------------------------------------------------------------
projects / wxWidgets.git / blobdiff