Files
wxWidgets/src/x11/bitmap.cpp
Julian Smart 288efe84da In bitmap.cpp, CreateFromImage, took GetWidth and GetHeight out of loop.
Fixed wxWindowX11::FindFocus so text selections work again.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@14849 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2002-03-28 21:42:35 +00:00

1421 lines
38 KiB
C++

/////////////////////////////////////////////////////////////////////////////
// Name: bitmap.cpp
// Purpose: wxBitmap
// Author: Julian Smart, Robert Roebling
// Modified by:
// Created: 17/09/98
// RCS-ID: $Id$
// Copyright: (c) Julian Smart, Robert Roebling
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifdef __GNUG__
#pragma implementation "bitmap.h"
#endif
#include "wx/bitmap.h"
#include "wx/icon.h"
#include "wx/log.h"
#include "wx/image.h"
#include "wx/app.h"
#if wxUSE_NANOX
#include "wx/dcmemory.h"
#endif
#include "wx/x11/private.h"
/* No point in using libXPM for NanoX */
#if wxUSE_NANOX
#undef wxHAVE_LIB_XPM
#define wxHAVE_LIB_XPM 0
// Copy from the drawable to the wxImage
bool wxGetImageFromDrawable(GR_DRAW_ID drawable, int srcX, int srcY, int width, int height, wxImage& image);
#endif
#if wxUSE_XPM
#if wxHAVE_LIB_XPM
#include <X11/xpm.h>
#else
#include "wx/xpmdecod.h"
#include "wx/wfstream.h"
#endif
#endif
#include <math.h>
//-----------------------------------------------------------------------------
// wxMask
//-----------------------------------------------------------------------------
IMPLEMENT_DYNAMIC_CLASS(wxMask,wxObject)
wxMask::wxMask()
{
m_bitmap = NULL;
m_display = NULL;
}
wxMask::wxMask( const wxBitmap& bitmap, const wxColour& colour )
{
m_bitmap = NULL;
Create( bitmap, colour );
}
wxMask::wxMask( const wxBitmap& bitmap, int paletteIndex )
{
m_bitmap = NULL;
Create( bitmap, paletteIndex );
}
wxMask::wxMask( const wxBitmap& bitmap )
{
m_bitmap = NULL;
Create( bitmap );
}
wxMask::~wxMask()
{
if (m_bitmap)
XFreePixmap( (Display*) m_display, (Pixmap) m_bitmap );
}
bool wxMask::Create( const wxBitmap& bitmap,
const wxColour& colour )
{
#if !wxUSE_NANOX
if (m_bitmap)
{
XFreePixmap( (Display*) m_display, (Pixmap) m_bitmap );
m_bitmap = NULL;
}
m_display = bitmap.GetDisplay();
wxImage image( bitmap );
if (!image.Ok()) return FALSE;
m_display = bitmap.GetDisplay();
Display *xdisplay = (Display*) m_display;
int xscreen = DefaultScreen( xdisplay );
Window xroot = RootWindow( xdisplay, xscreen );
Visual* xvisual = DefaultVisual( xdisplay, xscreen );
int bpp = DefaultDepth( xdisplay, xscreen );
m_bitmap = (WXPixmap) XCreatePixmap( xdisplay, xroot, image.GetWidth(), image.GetHeight(), 1 );
GC gc = XCreateGC( xdisplay, (Pixmap) m_bitmap, 0, NULL );
XSetForeground( xdisplay, gc, WhitePixel(xdisplay,xscreen) );
XSetFillStyle( xdisplay, gc, FillSolid );
XFillRectangle( xdisplay, (Pixmap) m_bitmap, gc, 0, 0, image.GetWidth(), image.GetHeight() );
unsigned char *data = image.GetData();
int index = 0;
unsigned char red = colour.Red();
unsigned char green = colour.Green();
unsigned char blue = colour.Blue();
XVisualInfo vinfo_template;
XVisualInfo *vi;
vinfo_template.visual = xvisual;
vinfo_template.visualid = XVisualIDFromVisual( xvisual );
vinfo_template.depth = bpp;
int nitem = 0;
vi = XGetVisualInfo( xdisplay, VisualIDMask|VisualDepthMask, &vinfo_template, &nitem );
wxASSERT_MSG( vi, wxT("No visual info") );
if ((bpp == 16) && (vi->red_mask != 0xf800)) bpp = 15;
if (bpp == 15)
{
red = red & 0xf8;
green = green & 0xf8;
blue = blue & 0xf8;
} else
if (bpp == 16)
{
red = red & 0xf8;
green = green & 0xfc;
blue = blue & 0xf8;
} else
if (bpp == 12)
{
red = red & 0xf0;
green = green & 0xf0;
blue = blue & 0xf0;
}
XSetForeground( xdisplay, gc, BlackPixel(xdisplay,xscreen) );
int width = image.GetWidth();
int height = image.GetHeight();
for (int j = 0; j < height; j++)
{
int start_x = -1;
int i;
for (i = 0; i < width; i++)
{
if ((data[index] == red) &&
(data[index+1] == green) &&
(data[index+2] == blue))
{
if (start_x == -1)
start_x = i;
}
else
{
if (start_x != -1)
{
XDrawLine( xdisplay, (Pixmap) m_bitmap, gc, start_x, j, i-1, j );
start_x = -1;
}
}
index += 3;
}
if (start_x != -1)
XDrawLine( xdisplay, (Pixmap) m_bitmap, gc, start_x, j, i, j );
}
XFreeGC( xdisplay, gc );
return TRUE;
#else
return FALSE;
#endif
// wxUSE_NANOX
}
bool wxMask::Create( const wxBitmap& bitmap, int paletteIndex )
{
unsigned char r,g,b;
wxPalette *pal = bitmap.GetPalette();
wxCHECK_MSG( pal, FALSE, wxT("Cannot create mask from bitmap without palette") );
pal->GetRGB(paletteIndex, &r, &g, &b);
return Create(bitmap, wxColour(r, g, b));
}
bool wxMask::Create( const wxBitmap& bitmap )
{
#if !wxUSE_NANOX
if (m_bitmap)
{
XFreePixmap( (Display*) m_display, (Pixmap) m_bitmap );
m_bitmap = NULL;
}
if (!bitmap.Ok()) return FALSE;
wxCHECK_MSG( bitmap.GetBitmap(), FALSE, wxT("Cannot create mask from colour bitmap") );
m_display = bitmap.GetDisplay();
int xscreen = DefaultScreen( (Display*) m_display );
Window xroot = RootWindow( (Display*) m_display, xscreen );
m_bitmap = (WXPixmap) XCreatePixmap( (Display*) m_display, xroot, bitmap.GetWidth(), bitmap.GetHeight(), 1 );
if (!m_bitmap) return FALSE;
GC gc = XCreateGC( (Display*) m_display, (Pixmap) m_bitmap, 0, NULL );
XCopyPlane( (Display*) m_display, (Pixmap) bitmap.GetBitmap(), (Pixmap) m_bitmap,
gc, 0, 0, bitmap.GetWidth(), bitmap.GetHeight(), 0, 0, 1 );
XFreeGC( (Display*) m_display, gc );
return TRUE;
#else
return FALSE;
#endif
// wxUSE_NANOX
}
//-----------------------------------------------------------------------------
// wxBitmap
//-----------------------------------------------------------------------------
class wxBitmapRefData: public wxObjectRefData
{
public:
wxBitmapRefData();
~wxBitmapRefData();
WXPixmap m_pixmap;
WXPixmap m_bitmap;
WXDisplay *m_display;
wxMask *m_mask;
int m_width;
int m_height;
int m_bpp;
wxPalette *m_palette;
};
wxBitmapRefData::wxBitmapRefData()
{
m_pixmap = NULL;
m_bitmap = NULL;
m_display = NULL;
m_mask = (wxMask *) NULL;
m_width = 0;
m_height = 0;
m_bpp = 0;
m_palette = (wxPalette *) NULL;
}
wxBitmapRefData::~wxBitmapRefData()
{
if (m_pixmap) XFreePixmap( (Display*) m_display, (Pixmap) m_pixmap );
if (m_bitmap) XFreePixmap( (Display*) m_display, (Pixmap) m_bitmap );
if (m_mask) delete m_mask;
if (m_palette) delete m_palette;
}
//-----------------------------------------------------------------------------
#define M_BMPDATA ((wxBitmapRefData *)m_refData)
IMPLEMENT_DYNAMIC_CLASS(wxBitmap,wxGDIObject)
wxBitmap::wxBitmap()
{
}
wxBitmap::wxBitmap( int width, int height, int depth )
{
Create( width, height, depth );
}
bool wxBitmap::Create( int width, int height, int depth )
{
UnRef();
wxCHECK_MSG( (width > 0) && (height > 0), FALSE, wxT("invalid bitmap size") )
m_refData = new wxBitmapRefData();
M_BMPDATA->m_display = wxGlobalDisplay();
wxASSERT_MSG( M_BMPDATA->m_display, wxT("No display") );
int xscreen = DefaultScreen( (Display*) M_BMPDATA->m_display );
Window xroot = RootWindow( (Display*) M_BMPDATA->m_display, xscreen );
int bpp = DefaultDepth( (Display*) M_BMPDATA->m_display, xscreen );
if (depth == -1) depth = bpp;
wxCHECK_MSG( (depth == bpp) ||
(depth == 1), FALSE, wxT("invalid bitmap depth") )
M_BMPDATA->m_mask = (wxMask *) NULL;
M_BMPDATA->m_width = width;
M_BMPDATA->m_height = height;
#if wxUSE_NANOX
M_BMPDATA->m_pixmap = (WXPixmap) GrNewPixmap(width, height, NULL);
M_BMPDATA->m_bpp = bpp;
wxASSERT_MSG( M_BMPDATA->m_pixmap, wxT("Bitmap creation failed") );
#else
if (depth == 1)
{
M_BMPDATA->m_bitmap = (WXPixmap) XCreatePixmap( (Display*) M_BMPDATA->m_display, xroot, width, height, 1 );
wxASSERT_MSG( M_BMPDATA->m_bitmap, wxT("Bitmap creation failed") );
M_BMPDATA->m_bpp = 1;
}
else
{
M_BMPDATA->m_pixmap = (WXPixmap) XCreatePixmap( (Display*) M_BMPDATA->m_display, xroot, width, height, depth );
wxASSERT_MSG( M_BMPDATA->m_pixmap, wxT("Pixmap creation failed") );
M_BMPDATA->m_bpp = depth;
}
#endif
return Ok();
}
bool wxBitmap::CreateFromXpm( const char **bits )
{
#if wxUSE_XPM
#if wxHAVE_LIB_XPM
UnRef();
wxCHECK_MSG( bits != NULL, FALSE, wxT("invalid bitmap data") )
m_refData = new wxBitmapRefData();
M_BMPDATA->m_display = wxGlobalDisplay();
Display *xdisplay = (Display*) M_BMPDATA->m_display;
int xscreen = DefaultScreen( xdisplay );
Window xroot = RootWindow( xdisplay, xscreen );
int bpp = DefaultDepth( xdisplay, xscreen );
XpmAttributes xpmAttr;
xpmAttr.valuemask = XpmReturnInfos; // nothing yet, but get infos back
Pixmap pixmap;
Pixmap mask = 0;
int ErrorStatus = XpmCreatePixmapFromData( xdisplay, xroot, (char**) bits, &pixmap, &mask, &xpmAttr );
if (ErrorStatus == XpmSuccess)
{
M_BMPDATA->m_width = xpmAttr.width;
M_BMPDATA->m_height = xpmAttr.height;
M_BMPDATA->m_bpp = bpp; // mono as well?
#if __WXDEBUG__
unsigned int depthRet;
int xRet, yRet;
unsigned int widthRet, heightRet, borderWidthRet;
XGetGeometry( xdisplay, pixmap, &xroot, &xRet, &yRet,
&widthRet, &heightRet, &borderWidthRet, &depthRet);
wxASSERT_MSG( bpp == (int)depthRet, wxT("colour depth mismatch") )
#endif
XpmFreeAttributes(&xpmAttr);
M_BMPDATA->m_pixmap = (WXPixmap) pixmap;
if (mask)
{
M_BMPDATA->m_mask = new wxMask;
M_BMPDATA->m_mask->SetBitmap( (WXPixmap) mask );
M_BMPDATA->m_mask->SetDisplay( xdisplay );
}
return TRUE;
}
else
{
UnRef();
return FALSE;
}
#else
wxXPMDecoder decoder;
wxImage image(decoder.ReadData(bits));
if (image.Ok())
return CreateFromImage(image);
else
return FALSE;
#endif
#endif
return FALSE;
}
bool wxBitmap::CreateFromImage( const wxImage& image, int depth )
{
#if wxUSE_NANOX
if (!image.Ok())
{
wxASSERT_MSG(image.Ok(), "Invalid wxImage passed to wxBitmap::CreateFromImage.");
return FALSE;
}
int w = image.GetWidth();
int h = image.GetHeight();
if (!Create(w, h, depth))
return FALSE;
// Unfortunately the mask has to be screen-depth since
// 1-bpp bitmaps don't seem to be supported
// TODO: implement transparent drawing, presumably
// by doing several blits as per the Windows
// implementation because Nano-X doesn't support
// XSetClipMask.
// TODO: could perhaps speed this function up
// by making a buffer of pixel values,
// and then calling GrArea to write that to the
// pixmap. See demos/nxroach.c.
bool hasMask = image.HasMask();
GC pixmapGC = GrNewGC();
Pixmap pixmap = (Pixmap) GetPixmap();
GC maskGC = 0;
Pixmap maskPixmap = 0;
unsigned char maskR = 0;
unsigned char maskG = 0;
unsigned char maskB = 0;
if (hasMask)
{
maskR = image.GetMaskRed();
maskG = image.GetMaskGreen();
maskB = image.GetMaskBlue();
maskGC = GrNewGC();
maskPixmap = GrNewPixmap(w, h, 0);
if (!maskPixmap)
hasMask = FALSE;
else
{
wxMask* mask = new wxMask;
mask->SetBitmap((WXPixmap) maskPixmap);
SetMask(mask);
}
}
GR_COLOR lastPixmapColour = 0;
GR_COLOR lastMaskColour = 0;
int i, j;
for (i = 0; i < w; i++)
{
for (j = 0; j < h; j++)
{
unsigned char red = image.GetRed(i, j);
unsigned char green = image.GetGreen(i, j);
unsigned char blue = image.GetBlue(i, j);
GR_COLOR colour = GR_RGB(red, green, blue);
// Efficiency measure
if (colour != lastPixmapColour || (i == 0 && j == 0))
{
GrSetGCForeground(pixmapGC, colour);
lastPixmapColour = colour;
}
GrPoint(pixmap, pixmapGC, i, j);
if (hasMask)
{
// scan the bitmap for the transparent colour and set the corresponding
// pixels in the mask to BLACK and the rest to WHITE
if (maskR == red && maskG == green && maskB == blue)
{
colour = GR_RGB(0, 0, 0);
}
else
{
colour = GR_RGB(255, 255, 255);
}
if (colour != lastMaskColour || (i == 0 && j == 0))
{
GrSetGCForeground(maskGC, colour);
lastMaskColour = colour;
}
GrPoint(maskPixmap, maskGC, i, j);
}
}
}
GrDestroyGC(pixmapGC);
if (hasMask)
GrDestroyGC(maskGC);
return TRUE;
#else
// !wxUSE_NANOX
UnRef();
wxCHECK_MSG( image.Ok(), FALSE, wxT("invalid image") )
wxCHECK_MSG( depth == -1, FALSE, wxT("invalid bitmap depth") )
m_refData = new wxBitmapRefData();
M_BMPDATA->m_display = wxGlobalDisplay();
Display *xdisplay = (Display*) M_BMPDATA->m_display;
int xscreen = DefaultScreen( xdisplay );
Window xroot = RootWindow( xdisplay, xscreen );
Visual* xvisual = DefaultVisual( xdisplay, xscreen );
int bpp = DefaultDepth( xdisplay, xscreen );
int width = image.GetWidth();
int height = image.GetHeight();
M_BMPDATA->m_width = width;
M_BMPDATA->m_height = height;
if (depth != 1) depth = bpp;
M_BMPDATA->m_bpp = depth;
if (depth == 1)
{
wxFAIL_MSG( "mono images later" );
}
else
{
// Create image
XImage *data_image = XCreateImage( xdisplay, xvisual, bpp, ZPixmap, 0, 0, width, height, 32, 0 );
data_image->data = (char*) malloc( data_image->bytes_per_line * data_image->height );
if (data_image->data == NULL)
{
wxLogError( wxT("Out of memory.") ); // TODO clean
return FALSE;
}
M_BMPDATA->m_pixmap = (WXPixmap) XCreatePixmap( xdisplay, xroot, width, height, depth );
// Create mask
XImage *mask_image = (XImage*) NULL;
if (image.HasMask())
{
mask_image = XCreateImage( xdisplay, xvisual, 1, ZPixmap, 0, 0, width, height, 32, 0 );
mask_image->data = (char*) malloc( mask_image->bytes_per_line * mask_image->height );
if (mask_image->data == NULL)
{
wxLogError( wxT("Out of memory.") ); // TODO clean
return FALSE;
}
wxMask *mask = new wxMask();
mask->SetDisplay( xdisplay );
mask->SetBitmap( (WXPixmap) XCreatePixmap( xdisplay, xroot, width, height, 1 ) );
SetMask( mask );
}
// Retrieve info
XVisualInfo vinfo_template;
XVisualInfo *vi;
vinfo_template.visual = xvisual;
vinfo_template.visualid = XVisualIDFromVisual( xvisual );
vinfo_template.depth = bpp;
int nitem = 0;
vi = XGetVisualInfo( xdisplay, VisualIDMask|VisualDepthMask, &vinfo_template, &nitem );
wxASSERT_MSG( vi, wxT("No visual info") );
if ((bpp == 16) && (vi->red_mask != 0xf800)) bpp = 15;
if (bpp < 8) bpp = 8;
// Render
enum byte_order { RGB, RBG, BRG, BGR, GRB, GBR };
byte_order b_o = RGB;
if (bpp > 8)
{
if ((vi->red_mask > vi->green_mask) && (vi->green_mask > vi->blue_mask)) b_o = RGB;
else if ((vi->red_mask > vi->blue_mask) && (vi->blue_mask > vi->green_mask)) b_o = RBG;
else if ((vi->blue_mask > vi->red_mask) && (vi->red_mask > vi->green_mask)) b_o = BRG;
else if ((vi->blue_mask > vi->green_mask) && (vi->green_mask > vi->red_mask)) b_o = BGR;
else if ((vi->green_mask > vi->red_mask) && (vi->red_mask > vi->blue_mask)) b_o = GRB;
else if ((vi->green_mask > vi->blue_mask) && (vi->blue_mask > vi->red_mask)) b_o = GBR;
}
XFree( vi );
int r_mask = image.GetMaskRed();
int g_mask = image.GetMaskGreen();
int b_mask = image.GetMaskBlue();
unsigned char* data = image.GetData();
wxASSERT_MSG( data, "No image data" );
bool hasMask = image.HasMask();
int index = 0;
for (int y = 0; y < height; y++)
{
for (int x = 0; x < width; x++)
{
int r = data[index];
index++;
int g = data[index];
index++;
int b = data[index];
index++;
if (hasMask)
{
if ((r == r_mask) && (b == b_mask) && (g == g_mask))
XPutPixel( mask_image, x, y, 0 );
else
XPutPixel( mask_image, x, y, 1 );
}
switch (bpp)
{
case 8:
{
int pixel = 0;
#if 0
if (wxTheApp->m_colorCube)
{
pixel = wxTheApp->m_colorCube[ ((r & 0xf8) << 7) + ((g & 0xf8) << 2) + ((b & 0xf8) >> 3) ];
}
else
{
GdkColormap *cmap = gtk_widget_get_default_colormap();
GdkColor *colors = cmap->colors;
int max = 3 * (65536);
for (int i = 0; i < cmap->size; i++)
{
int rdiff = (r << 8) - colors[i].red;
int gdiff = (g << 8) - colors[i].green;
int bdiff = (b << 8) - colors[i].blue;
int sum = ABS (rdiff) + ABS (gdiff) + ABS (bdiff);
if (sum < max) { pixel = i; max = sum; }
}
}
#endif
XPutPixel( data_image, x, y, pixel );
break;
}
case 12: // SGI only
{
int pixel = 0;
switch (b_o)
{
case RGB: pixel = ((r & 0xf0) << 4) | (g & 0xf0) | ((b & 0xf0) >> 4); break;
case RBG: pixel = ((r & 0xf0) << 4) | (b & 0xf0) | ((g & 0xf0) >> 4); break;
case GRB: pixel = ((g & 0xf0) << 4) | (r & 0xf0) | ((b & 0xf0) >> 4); break;
case GBR: pixel = ((g & 0xf0) << 4) | (b & 0xf0) | ((r & 0xf0) >> 4); break;
case BRG: pixel = ((b & 0xf0) << 4) | (r & 0xf0) | ((g & 0xf0) >> 4); break;
case BGR: pixel = ((b & 0xf0) << 4) | (g & 0xf0) | ((r & 0xf0) >> 4); break;
}
XPutPixel( data_image, x, y, pixel );
break;
}
case 15:
{
int pixel = 0;
switch (b_o)
{
case RGB: pixel = ((r & 0xf8) << 7) | ((g & 0xf8) << 2) | ((b & 0xf8) >> 3); break;
case RBG: pixel = ((r & 0xf8) << 7) | ((b & 0xf8) << 2) | ((g & 0xf8) >> 3); break;
case GRB: pixel = ((g & 0xf8) << 7) | ((r & 0xf8) << 2) | ((b & 0xf8) >> 3); break;
case GBR: pixel = ((g & 0xf8) << 7) | ((b & 0xf8) << 2) | ((r & 0xf8) >> 3); break;
case BRG: pixel = ((b & 0xf8) << 7) | ((r & 0xf8) << 2) | ((g & 0xf8) >> 3); break;
case BGR: pixel = ((b & 0xf8) << 7) | ((g & 0xf8) << 2) | ((r & 0xf8) >> 3); break;
}
XPutPixel( data_image, x, y, pixel );
break;
}
case 16:
{
// I actually don't know if for 16-bit displays, it is alway the green
// component or the second component which has 6 bits.
int pixel = 0;
switch (b_o)
{
case RGB: pixel = ((r & 0xf8) << 8) | ((g & 0xfc) << 3) | ((b & 0xf8) >> 3); break;
case RBG: pixel = ((r & 0xf8) << 8) | ((b & 0xfc) << 3) | ((g & 0xf8) >> 3); break;
case GRB: pixel = ((g & 0xf8) << 8) | ((r & 0xfc) << 3) | ((b & 0xf8) >> 3); break;
case GBR: pixel = ((g & 0xf8) << 8) | ((b & 0xfc) << 3) | ((r & 0xf8) >> 3); break;
case BRG: pixel = ((b & 0xf8) << 8) | ((r & 0xfc) << 3) | ((g & 0xf8) >> 3); break;
case BGR: pixel = ((b & 0xf8) << 8) | ((g & 0xfc) << 3) | ((r & 0xf8) >> 3); break;
}
XPutPixel( data_image, x, y, pixel );
break;
}
case 32:
case 24:
{
int pixel = 0;
switch (b_o)
{
case RGB: pixel = (r << 16) | (g << 8) | b; break;
case RBG: pixel = (r << 16) | (b << 8) | g; break;
case BRG: pixel = (b << 16) | (r << 8) | g; break;
case BGR: pixel = (b << 16) | (g << 8) | r; break;
case GRB: pixel = (g << 16) | (r << 8) | b; break;
case GBR: pixel = (g << 16) | (b << 8) | r; break;
}
XPutPixel( data_image, x, y, pixel );
}
default: break;
}
} // for
} // for
// Blit picture
GC gc = XCreateGC( xdisplay, (Pixmap) M_BMPDATA->m_pixmap, 0, NULL );
XPutImage( xdisplay, (Pixmap) M_BMPDATA->m_pixmap, gc, data_image, 0, 0, 0, 0, width, height );
#ifdef __WXDEBUG__
XSync(wxGlobalDisplay(), False);
#endif
XDestroyImage( data_image );
XFreeGC( xdisplay, gc );
// Blit mask
if (image.HasMask())
{
GC gc = XCreateGC( xdisplay, (Pixmap) GetMask()->GetBitmap(), 0, NULL );
XPutImage( xdisplay, (Pixmap) GetMask()->GetBitmap(), gc, mask_image, 0, 0, 0, 0, width, height );
XDestroyImage( mask_image );
XFreeGC( xdisplay, gc );
}
}
return TRUE;
#endif
// wxUSE_NANOX
}
static void wxCalcPrecAndShift( unsigned long mask, int *shift, int *prec )
{
*shift = 0;
*prec = 0;
while (!(mask & 0x1))
{
(*shift)++;
mask >>= 1;
}
while (mask & 0x1)
{
(*prec)++;
mask >>= 1;
}
}
wxImage wxBitmap::ConvertToImage() const
{
wxImage image;
wxCHECK_MSG( Ok(), wxNullImage, wxT("invalid bitmap") );
Display *xdisplay = (Display*) M_BMPDATA->m_display;
wxASSERT_MSG( xdisplay, wxT("No display") );
int xscreen = DefaultScreen( xdisplay );
Visual* xvisual = DefaultVisual( xdisplay, xscreen );
int bpp = DefaultDepth( xdisplay, xscreen );
#if wxUSE_NANOX
wxGetImageFromDrawable((Pixmap) GetPixmap(), 0, 0, GetWidth(), GetHeight(), image);
return image;
#else
// !wxUSE_NANOX
XImage *x_image = NULL;
if (GetPixmap())
{
x_image = XGetImage( xdisplay, (Pixmap) GetPixmap(),
0, 0,
GetWidth(), GetHeight(),
AllPlanes, ZPixmap );
} else
if (GetBitmap())
{
x_image = XGetImage( xdisplay, (Pixmap) GetBitmap(),
0, 0,
GetWidth(), GetHeight(),
AllPlanes, ZPixmap );
} else
{
wxFAIL_MSG( wxT("Ill-formed bitmap") );
}
wxCHECK_MSG( x_image, wxNullImage, wxT("couldn't create image") );
image.Create( GetWidth(), GetHeight() );
char unsigned *data = image.GetData();
if (!data)
{
XDestroyImage( x_image );
wxFAIL_MSG( wxT("couldn't create image") );
return wxNullImage;
}
XImage *x_image_mask = NULL;
if (GetMask())
{
x_image_mask = XGetImage( xdisplay, (Pixmap) GetMask()->GetBitmap(),
0, 0,
GetWidth(), GetHeight(),
AllPlanes, ZPixmap );
image.SetMaskColour( 16, 16, 16 ); // anything unlikely and dividable
}
int red_shift_right = 0;
int green_shift_right = 0;
int blue_shift_right = 0;
int red_shift_left = 0;
int green_shift_left = 0;
int blue_shift_left = 0;
bool use_shift = FALSE;
if (GetPixmap())
{
// Retrieve info
XVisualInfo vinfo_template;
XVisualInfo *vi;
vinfo_template.visual = xvisual;
vinfo_template.visualid = XVisualIDFromVisual( xvisual );
vinfo_template.depth = bpp;
int nitem = 0;
vi = XGetVisualInfo( xdisplay, VisualIDMask|VisualDepthMask, &vinfo_template, &nitem );
wxASSERT_MSG( vi, wxT("No visual info") );
int red_prec,green_prec,blue_prec;
int red_shift,green_shift,blue_shift;
wxCalcPrecAndShift( vi->red_mask, &red_shift, &red_prec );
wxCalcPrecAndShift( vi->green_mask, &green_shift, &green_prec );
wxCalcPrecAndShift( vi->blue_mask, &blue_shift, &blue_prec );
if (bpp == 16) bpp = red_prec + green_prec + blue_prec;
red_shift_right = red_shift;
red_shift_left = 8-red_prec;
green_shift_right = green_shift;
green_shift_left = 8-green_prec;
blue_shift_right = blue_shift;
blue_shift_left = 8-blue_prec;
#if 0
use_shift = (vi->visual->c_class == TrueColor) || (vi->visual->c_class == DirectColor);
#else
use_shift = TRUE;
#endif
XFree( vi );
}
if (GetBitmap())
{
bpp = 1;
}
// GdkColormap *cmap = gtk_widget_get_default_colormap();
int width = GetWidth();
int height = GetHeight();
long pos = 0;
for (int j = 0; j < height; j++)
{
for (int i = 0; i < width; i++)
{
unsigned long pixel = XGetPixel( x_image, i, j );
if (bpp == 1)
{
if (pixel == 0)
{
data[pos] = 0;
data[pos+1] = 0;
data[pos+2] = 0;
}
else
{
data[pos] = 255;
data[pos+1] = 255;
data[pos+2] = 255;
}
}
else if (use_shift)
{
data[pos] = (pixel >> red_shift_right) << red_shift_left;
data[pos+1] = (pixel >> green_shift_right) << green_shift_left;
data[pos+2] = (pixel >> blue_shift_right) << blue_shift_left;
}
#if 0
else if (cmap->colors)
{
data[pos] = cmap->colors[pixel].red >> 8;
data[pos+1] = cmap->colors[pixel].green >> 8;
data[pos+2] = cmap->colors[pixel].blue >> 8;
}
#endif
else
{
wxFAIL_MSG( wxT("Image conversion failed. Unknown visual type.") );
}
if (x_image_mask)
{
int mask_pixel = XGetPixel( x_image_mask, i, j );
if (mask_pixel == 0)
{
data[pos] = 16;
data[pos+1] = 16;
data[pos+2] = 16;
}
}
pos += 3;
}
}
XDestroyImage( x_image );
if (x_image_mask) XDestroyImage( x_image_mask );
return image;
#endif
// wxUSE_NANOX
}
wxBitmap::wxBitmap( const wxBitmap& bmp )
{
Ref( bmp );
}
wxBitmap::wxBitmap( const wxString &filename, int type )
{
LoadFile( filename, type );
}
wxBitmap::wxBitmap( const char bits[], int width, int height, int WXUNUSED(depth) )
{
#if !wxUSE_NANOX
m_refData = new wxBitmapRefData();
M_BMPDATA->m_display = wxGlobalDisplay();
Display *xdisplay = (Display*) M_BMPDATA->m_display;
int xscreen = DefaultScreen( xdisplay );
Window xroot = RootWindow( xdisplay, xscreen );
M_BMPDATA->m_mask = (wxMask *) NULL;
M_BMPDATA->m_bitmap = (WXPixmap) XCreateBitmapFromData( xdisplay, xroot, (char *) bits, width, height );
M_BMPDATA->m_width = width;
M_BMPDATA->m_height = height;
M_BMPDATA->m_bpp = 1;
#endif
wxCHECK_RET( M_BMPDATA->m_bitmap, wxT("couldn't create bitmap") );
}
wxBitmap::~wxBitmap()
{
}
wxBitmap& wxBitmap::operator = ( const wxBitmap& bmp )
{
if ( m_refData != bmp.m_refData )
Ref( bmp );
return *this;
}
bool wxBitmap::operator == ( const wxBitmap& bmp ) const
{
return m_refData == bmp.m_refData;
}
bool wxBitmap::operator != ( const wxBitmap& bmp ) const
{
return m_refData != bmp.m_refData;
}
bool wxBitmap::Ok() const
{
return (m_refData != NULL);
}
int wxBitmap::GetHeight() const
{
wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
return M_BMPDATA->m_height;
}
int wxBitmap::GetWidth() const
{
wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
return M_BMPDATA->m_width;
}
int wxBitmap::GetDepth() const
{
wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
return M_BMPDATA->m_bpp;
}
wxMask *wxBitmap::GetMask() const
{
wxCHECK_MSG( Ok(), (wxMask *) NULL, wxT("invalid bitmap") );
return M_BMPDATA->m_mask;
}
void wxBitmap::SetMask( wxMask *mask )
{
wxCHECK_RET( Ok(), wxT("invalid bitmap") );
if (M_BMPDATA->m_mask) delete M_BMPDATA->m_mask;
M_BMPDATA->m_mask = mask;
}
bool wxBitmap::CopyFromIcon(const wxIcon& icon)
{
*this = icon;
return TRUE;
}
wxBitmap wxBitmap::GetSubBitmap( const wxRect& rect) const
{
wxCHECK_MSG( Ok() &&
(rect.x >= 0) && (rect.y >= 0) &&
(rect.x+rect.width <= M_BMPDATA->m_width) && (rect.y+rect.height <= M_BMPDATA->m_height),
wxNullBitmap, wxT("invalid bitmap or bitmap region") );
wxBitmap ret( rect.width, rect.height, M_BMPDATA->m_bpp );
wxASSERT_MSG( ret.Ok(), wxT("GetSubBitmap error") );
wxFAIL_MSG( "wxBitmap::GetSubBitmap not yet implemented" );
#if 0
if (ret.GetPixmap())
{
GdkGC *gc = gdk_gc_new( ret.GetPixmap() );
gdk_draw_pixmap( ret.GetPixmap(), gc, GetPixmap(), rect.x, rect.y, 0, 0, rect.width, rect.height );
gdk_gc_destroy( gc );
}
else
{
GdkGC *gc = gdk_gc_new( ret.GetBitmap() );
gdk_wx_draw_bitmap( ret.GetBitmap(), gc, GetBitmap(), rect.x, rect.y, 0, 0, rect.width, rect.height );
gdk_gc_destroy( gc );
}
if (GetMask())
{
wxMask *mask = new wxMask;
mask->m_bitmap = gdk_pixmap_new( wxGetRootWindow()->window, rect.width, rect.height, 1 );
GdkGC *gc = gdk_gc_new( mask->m_bitmap );
gdk_wx_draw_bitmap( mask->m_bitmap, gc, M_BMPDATA->m_mask->m_bitmap, 0, 0, rect.x, rect.y, rect.width, rect.height );
gdk_gc_destroy( gc );
ret.SetMask( mask );
}
#endif
return ret;
}
bool wxBitmap::SaveFile( const wxString &name, int type, wxPalette *WXUNUSED(palette) )
{
wxCHECK_MSG( Ok(), FALSE, wxT("invalid bitmap") );
// Try to save the bitmap via wxImage handlers:
{
wxImage image( *this );
if (image.Ok()) return image.SaveFile( name, type );
}
return FALSE;
}
bool wxBitmap::LoadFile( const wxString &name, int type )
{
UnRef();
if (!wxFileExists(name)) return FALSE;
if (type == wxBITMAP_TYPE_XPM)
{
#if wxUSE_XPM
#if wxHAVE_LIB_XPM
m_refData = new wxBitmapRefData();
M_BMPDATA->m_display = wxGlobalDisplay();
Display *xdisplay = (Display*) M_BMPDATA->m_display;
int xscreen = DefaultScreen( xdisplay );
Window xroot = RootWindow( xdisplay, xscreen );
int bpp = DefaultDepth( xdisplay, xscreen );
XpmAttributes xpmAttr;
xpmAttr.valuemask = XpmReturnInfos; // nothing yet, but get infos back
Pixmap pixmap;
Pixmap mask = 0;
int ErrorStatus = XpmReadFileToPixmap( xdisplay, xroot, (char*) name.c_str(), &pixmap, &mask, &xpmAttr);
if (ErrorStatus == XpmSuccess)
{
M_BMPDATA->m_width = xpmAttr.width;
M_BMPDATA->m_height = xpmAttr.height;
M_BMPDATA->m_bpp = bpp; // mono as well?
XpmFreeAttributes(&xpmAttr);
M_BMPDATA->m_bitmap = (WXPixmap) pixmap;
if (mask)
{
M_BMPDATA->m_mask = new wxMask;
M_BMPDATA->m_mask->SetBitmap( (WXPixmap) mask );
M_BMPDATA->m_mask->SetDisplay( xdisplay );
}
}
else
{
UnRef();
return FALSE;
}
#else
#if wxUSE_STREAMS
wxXPMDecoder decoder;
wxFileInputStream stream(name);
if (stream.Ok())
{
wxImage image(decoder.ReadFile(stream));
if (image.Ok())
return CreateFromImage(image);
else
return FALSE;
}
else
return FALSE;
#else
return FALSE;
#endif
// wxUSE_STREAMS
#endif
// wxHAVE_LIB_XPM
#endif
// wxUSE_XPM
return FALSE;
}
else // try if wxImage can load it
{
wxImage image;
if (!image.LoadFile( name, type )) return FALSE;
if (image.Ok()) *this = image.ConvertToBitmap();
else return FALSE;
}
return TRUE;
}
wxPalette *wxBitmap::GetPalette() const
{
if (!Ok()) return (wxPalette *) NULL;
return M_BMPDATA->m_palette;
}
void wxBitmap::SetHeight( int height )
{
if (!m_refData) m_refData = new wxBitmapRefData();
M_BMPDATA->m_height = height;
}
void wxBitmap::SetWidth( int width )
{
if (!m_refData) m_refData = new wxBitmapRefData();
M_BMPDATA->m_width = width;
}
void wxBitmap::SetDepth( int depth )
{
if (!m_refData) m_refData = new wxBitmapRefData();
M_BMPDATA->m_bpp = depth;
}
void wxBitmap::SetPixmap( WXPixmap pixmap )
{
if (!m_refData) m_refData = new wxBitmapRefData();
M_BMPDATA->m_pixmap = pixmap;
}
void wxBitmap::SetBitmap( WXPixmap bitmap )
{
if (!m_refData) m_refData = new wxBitmapRefData();
M_BMPDATA->m_bitmap = bitmap;
}
WXPixmap wxBitmap::GetPixmap() const
{
wxCHECK_MSG( Ok(), (WXPixmap) NULL, wxT("invalid bitmap") );
return M_BMPDATA->m_pixmap;
}
WXPixmap wxBitmap::GetBitmap() const
{
wxCHECK_MSG( Ok(), (WXPixmap) NULL, wxT("invalid bitmap") );
return M_BMPDATA->m_bitmap;
}
WXDisplay *wxBitmap::GetDisplay() const
{
wxCHECK_MSG( Ok(), (WXDisplay*) NULL, wxT("invalid bitmap") );
return M_BMPDATA->m_display;
}
#if wxUSE_NANOX
// Copy from the drawable to the wxImage
bool wxGetImageFromDrawable(GR_DRAW_ID drawable, int srcX, int srcY, int width, int height, wxImage& image)
{
GR_SCREEN_INFO sinfo;
int x, y;
GR_PIXELVAL *pixels;
GR_PALETTE* palette = NULL;
unsigned char rgb[3], *pp;
GrGetScreenInfo(&sinfo);
if (sinfo.pixtype == MWPF_PALETTE) {
if(!(palette = (GR_PALETTE*) malloc(sizeof(GR_PALETTE)))) {
return FALSE;
}
GrGetSystemPalette(palette);
}
if(!(pixels = (GR_PIXELVAL*) malloc(sizeof(GR_PIXELVAL) * width * height)))
{
return FALSE;
}
image.Create(width, height);
GrReadArea(drawable, srcX, srcY, width, height,
pixels);
for(x = 0; x < sinfo.cols; x++) {
pp = (unsigned char *)pixels +
((x + (y * sinfo.cols)) *
sizeof(GR_PIXELVAL));
switch(sinfo.pixtype) {
/* FIXME: These may need modifying on big endian. */
case MWPF_TRUECOLOR0888:
case MWPF_TRUECOLOR888:
rgb[0] = pp[2];
rgb[1] = pp[1];
rgb[2] = pp[0];
break;
case MWPF_PALETTE:
rgb[0] = palette->palette[pp[0]].r;
rgb[1] = palette->palette[pp[0]].g;
rgb[2] = palette->palette[pp[0]].b;
break;
case MWPF_TRUECOLOR565:
rgb[0] = pp[1] & 0xf8;
rgb[1] = ((pp[1] & 0x07) << 5) |
((pp[0] & 0xe0) >> 3);
rgb[2] = (pp[0] & 0x1f) << 3;
break;
case MWPF_TRUECOLOR555:
rgb[0] = (pp[1] & 0x7c) << 1;
rgb[1] = ((pp[1] & 0x03) << 6) |
((pp[0] & 0xe0) >> 2);
rgb[2] = (pp[0] & 0x1f) << 3;
break;
case MWPF_TRUECOLOR332:
rgb[0] = pp[0] & 0xe0;
rgb[1] = (pp[0] & 0x1c) << 3;
rgb[2] = (pp[0] & 0x03) << 6;
break;
default:
fprintf(stderr, "Unsupported pixel "
"format\n");
return 1;
}
image.SetRGB(x, y, rgb[0], rgb[1], rgb[2]);
}
free(pixels);
if(palette) free(palette);
return TRUE;
}
#if 0
int GrGetPixelColor(GR_SCREEN_INFO* sinfo, GR_PALETTE* palette, GR_PIXELVAL pixel,
unsigned char* red, unsigned char* green, unsigned char* blue)
{
unsigned char rgb[3], *pp;
pp = (unsigned char*) & pixel ;
switch (sinfo.pixtype)
{
/* FIXME: These may need modifying on big endian. */
case MWPF_TRUECOLOR0888:
case MWPF_TRUECOLOR888:
rgb[0] = pp[2];
rgb[1] = pp[1];
rgb[2] = pp[0];
break;
case MWPF_PALETTE:
rgb[0] = palette->palette[pp[0]].r;
rgb[1] = palette->palette[pp[0]].g;
rgb[2] = palette->palette[pp[0]].b;
break;
case MWPF_TRUECOLOR565:
rgb[0] = pp[1] & 0xf8;
rgb[1] = ((pp[1] & 0x07) << 5) |
((pp[0] & 0xe0) >> 3);
rgb[2] = (pp[0] & 0x1f) << 3;
break;
case MWPF_TRUECOLOR555:
rgb[0] = (pp[1] & 0x7c) << 1;
rgb[1] = ((pp[1] & 0x03) << 6) |
((pp[0] & 0xe0) >> 2);
rgb[2] = (pp[0] & 0x1f) << 3;
break;
case MWPF_TRUECOLOR332:
rgb[0] = pp[0] & 0xe0;
rgb[1] = (pp[0] & 0x1c) << 3;
rgb[2] = (pp[0] & 0x03) << 6;
break;
default:
fprintf(stderr, "Unsupported pixel format\n");
return 0;
}
*(red) = rgb[0];
*(green) = rgb[1];
*(blue) = rgb[2];
return 1;
}
#endif
#endif
// wxUSE_NANOX