#endif
#ifndef WX_PRECOMP
-#include "wx/wx.h"
+ #include "wx/wx.h"
#endif
#include "wx/image.h"
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;
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);
- // another possibility: wxNativePixelData (don't forget to remove code
- // setting alpha in the loop below then)
- typedef wxAlphaPixelData Data;
- // typedef wxNativePixelData Data;
+ InitAlphaBitmap();
+ InitBitmap();
+ }
+
+ 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;
}
// 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"));
}
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,
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;
}
}
+ 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()
};
else
my_horse_png = wxBitmap( image );
- image = wxImage(wxT("toucan.png"));
- my_toucan = 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
int x = 750, y = 10, yy = 170;
dc.DrawText(wxT("Original toucan"), x+50, y);
- dc.DrawBitmap(my_toucan, x, y+15);
+ 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);
+ 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);
+ 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);
+ 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);
+ 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())
dc.SetTextBackground( _T("RED") );
dc.DrawBitmap( my_smile_xbm, 30, 2010 );
- dc.SetTextForeground( wxT("BLACK") );
+ dc.SetTextForeground( *wxBLACK );
dc.DrawText( _T("After wxImage conversion"), 150, 1975 );
dc.DrawText( _T("(red on white)"), 150, 1990 );
dc.SetTextForeground( wxT("RED") );
wxRED_PEN->GetColour().Green(),
wxRED_PEN->GetColour().Blue() );
dc.DrawBitmap( wxBitmap(i), 150, 2010, true );
- dc.SetTextForeground( wxT("BLACK") );
+ dc.SetTextForeground( *wxBLACK );
}
dc.SetTextBackground( wxT("GREEN") );
dc.DrawBitmap( mono, 30, 2130 );
- dc.SetTextForeground( wxT("BLACK") );
+ dc.SetTextForeground( *wxBLACK );
dc.DrawText( _T("After wxImage conversion"), 150, 2095 );
dc.DrawText( _T("(red on white)"), 150, 2110 );
dc.SetTextForeground( wxT("RED") );
wxRED_PEN->GetColour().Green(),
wxRED_PEN->GetColour().Blue() );
dc.DrawBitmap( wxBitmap(i), 150, 2130, true );
- dc.SetTextForeground( wxT("BLACK") );
+ dc.SetTextForeground( *wxBLACK );
}
// For testing transparency
projects / wxWidgets.git / blobdiff