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applied patch 432814: saving BMP in 1, 4 and 8 bpp

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@11470 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
2001-08-25 15:30:49 +00:00
parent 6e711d5c09
commit 1971d23c57
3 changed files with 327 additions and 23 deletions
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101
samples/image/image.cpp
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@@ -22,6 +22,7 @@
#include "wx/file.h"
#include "wx/mstream.h"
#include "wx/wfstream.h"
#include "wx/quantize.h"
#include "smile.xbm"
#include "smile.xpm"
@@ -51,7 +52,7 @@ public:
wxBitmap *my_horse_pnm;
wxBitmap *my_horse_tiff;
wxBitmap *my_horse_xpm;
wxBitmap *my_smile_xbm;
wxBitmap *my_square;
wxBitmap *my_anti;
@@ -87,10 +88,10 @@ class MyImageFrame : public wxFrame
{
public:
MyImageFrame(wxFrame *parent, const wxBitmap& bitmap)
: wxFrame(parent, -1, _T("Frame with image"),
: wxFrame(parent, -1, _T("Double click to save"),
wxDefaultPosition, wxDefaultSize,
wxCAPTION | wxSYSTEM_MENU),
m_bitmap(bitmap)
m_bitmap(bitmap)
{
SetClientSize(bitmap.GetWidth(), bitmap.GetHeight());
}
@@ -101,6 +102,97 @@ public:
dc.DrawBitmap( m_bitmap, 0, 0 );
}
void OnSave(wxCommandEvent& WXUNUSED(event))
{
wxImage image(m_bitmap);
static const wxString bppchoices[8] =
{
"1 bpp color",
"1 bpp B&W",
"4 bpp color",
"8 bpp color",
"8 bpp greyscale",
"8 bpp red",
"8 bpp own palette",
"24 bpp"
};
static const int bppvalues[WXSIZEOF(bppchoices)] =
{
wxBMP_1BPP,
wxBMP_1BPP_BW,
wxBMP_4BPP,
wxBMP_8BPP,
wxBMP_8BPP_GREY,
wxBMP_8BPP_RED,
wxBMP_8BPP_PALETTE,
wxBMP_24BPP
};
int bppselection = wxGetSingleChoiceIndex("Set BMP BPP",
"Set BMP BPP",
WXSIZEOF(bppchoices),
bppchoices,
this);
if ( bppselection == -1 )
{
// cancelled
return;
}
image.SetOption(wxBMP_FORMAT, bppvalues[bppselection]);
wxString deffilename = bppchoices[bppselection];
deffilename.Replace(" ", "_");
deffilename += ".bmp";
wxString savefilename = wxFileSelector( "Save Image",
"",
deffilename,
(const char *)NULL,
"BMP files (*.bmp)|*.bmp|"
"PNG files (*.png)|*.png|"
"JPEG files (*.jpg)|*.jpg|"
"GIF files (*.gif)|*.gif|"
"TIFF files (*.tif)|*.tif|"
"PCX files (*.pcx)|*.pcx",
wxSAVE);
if ( savefilename.empty() )
return;
if ( image.GetOptionInt(wxBMP_FORMAT) == wxBMP_8BPP_PALETTE )
{
unsigned char *cmap = new unsigned char [256];
for ( int i = 0; i < 256; i++ )
cmap[i] = i;
image.SetPalette(wxPalette(256, cmap, cmap, cmap));
delete cmap;
}
bool saved = FALSE;
wxString extension = savefilename.AfterLast('.').Lower();
if (extension == "bmp")
saved=image.SaveFile(savefilename, wxBITMAP_TYPE_BMP);
else if (extension == "png")
saved=image.SaveFile(savefilename, wxBITMAP_TYPE_PNG);
else if (extension == "pcx")
saved=image.SaveFile(savefilename, wxBITMAP_TYPE_PCX);
else if ((extension == "tif") || (extension == "tiff"))
saved=image.SaveFile(savefilename, wxBITMAP_TYPE_TIF);
else if (extension == "jpg")
saved=image.SaveFile(savefilename, wxBITMAP_TYPE_JPEG);
else if (extension == "pnm")
saved=image.SaveFile(savefilename, wxBITMAP_TYPE_PNM);
else
wxMessageBox("Unknown file type, see options in file selector.",
"Unknown file type",
wxOK|wxCENTRE, this);
}
private:
wxBitmap m_bitmap;
@@ -124,7 +216,8 @@ IMPLEMENT_APP(MyApp)
IMPLEMENT_DYNAMIC_CLASS(MyCanvas, wxScrolledWindow)
BEGIN_EVENT_TABLE(MyImageFrame, wxFrame)
EVT_PAINT(MyImageFrame::OnPaint)
EVT_PAINT(MyImageFrame::OnPaint)
EVT_LEFT_DCLICK(MyImageFrame::OnSave)
END_EVENT_TABLE()
BEGIN_EVENT_TABLE(MyCanvas, wxScrolledWindow)