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added wxImage::RotateHue() and RGB <-> HSV conversions (patch 1227108)

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@34969 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
2005-07-28 22:50:34 +00:00
parent 278d457684
commit 978d3d3647
8 changed files with 299 additions and 7 deletions
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23
samples/image/image.cpp
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@@ -84,6 +84,8 @@ public:
wxBitmap *my_horse_asciigrey_pnm;
wxBitmap *my_horse_rawgrey_pnm;
wxBitmap *colorized_horse_jpeg;
int xH, yH ;
int m_ani_images ;
@@ -408,6 +410,7 @@ MyCanvas::MyCanvas( wxWindow *parent, wxWindowID id,
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;
@@ -465,7 +468,14 @@ MyCanvas::MyCanvas( wxWindow *parent, wxWindowID id,
if ( !image.LoadFile( dir + _T("horse.jpg")) )
wxLogError(wxT("Can't load JPG image"));
else
{
my_horse_jpeg = new 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 );
}
#endif // wxUSE_LIBJPEG
#if wxUSE_GIF
@@ -644,6 +654,7 @@ MyCanvas::~MyCanvas()
delete my_anti;
delete my_horse_asciigrey_pnm;
delete my_horse_rawgrey_pnm;
delete colorized_horse_jpeg;
}
void MyCanvas::OnPaint( wxPaintEvent &WXUNUSED(event) )
@@ -843,6 +854,14 @@ void MyCanvas::OnPaint( wxPaintEvent &WXUNUSED(event) )
{
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()
@@ -955,8 +974,8 @@ MyFrame::MyFrame()
m_canvas = new MyCanvas( this, wxID_ANY, wxPoint(0,0), wxSize(10,10) );
// 500 width * 2500 height
m_canvas->SetScrollbars( 10, 10, 50, 250 );
// 500 width * 2750 height
m_canvas->SetScrollbars( 10, 10, 50, 275 );
}
void MyFrame::OnQuit( wxCommandEvent &WXUNUSED(event) )