-/////////////////////////////////////////////////////////////////////////////
-// Name: src/motif/palette.cpp
-// Purpose: wxPalette
-// Author: Julian Smart
-// Modified by:
-// Created: 17/09/98
-// RCS-ID: $Id$
-// Copyright: (c) Julian Smart
-// Licence: wxWindows licence
-/////////////////////////////////////////////////////////////////////////////
-
-/*
- * Colour map
- *
- * When constructed with the default constructor, we start from
- * the wxApp::GetMainColormap, allocating additional read-only cells
- * in Create(). The cells are freed on the next call to Create()
- * or when the destructor is called.
- */
-
-/* Wolfram Gloger <u7y22ab@sunmail.lrz-muenchen.de>
-I have implemented basic colormap support for the X11 versions of
-wxWidgets, notably wxPalette::Create(). The way I did it is to
-allocate additional read-only color cells in the default colormap. In
-general you will get arbitrary pixel values assigned to these new
-cells and therefore I added a method wxPalette::TransferBitmap()
-which maps the pixel values 0..n to the real ones obtained with
-Create(). This is only implemented for the popular case of 8-bit
-depth.
-
-Allocating read-write color cells would involve installing a private
-X11 colormap for a particular window, and AFAIK this is not
-recommended; only the window manager should do this... Also, it is
-not the functionality that wxPalette::Create() aims to provide.
- */
-
-// For compilers that support precompilation, includes "wx.h".
-#include "wx/wxprec.h"
-
-#include "wx/palette.h"
-
-#ifndef WX_PRECOMP
- #include "wx/app.h"
- #include "wx/utils.h"
- #include "wx/window.h"
-#endif
-
-#ifdef __VMS__
-#pragma message disable nosimpint
-#endif
-#include <Xm/Xm.h>
-#ifdef __VMS__
-#pragma message enable nosimpint
-#endif
-#include "wx/motif/private.h"
-
-IMPLEMENT_DYNAMIC_CLASS(wxPalette, wxGDIObject)
-IMPLEMENT_DYNAMIC_CLASS(wxXPalette, wxObject)
-
-/*
-* Palette
-*
-*/
-
-wxXPalette::wxXPalette()
-{
- m_cmap = (WXColormap) 0;
- m_pix_array_n = 0;
- m_pix_array = (unsigned long*) 0;
- m_display = (WXDisplay*) 0;
- m_destroyable = false;
-}
-
-wxPaletteRefData::wxPaletteRefData()
-{
-}
-
-wxPaletteRefData::~wxPaletteRefData()
-{
- Display *display = (Display*) NULL;
-
- wxList::compatibility_iterator node, next;
-
- for (node = m_palettes.GetFirst(); node; node = next) {
- wxXPalette *c = (wxXPalette *)node->GetData();
- unsigned long *pix_array = c->m_pix_array;
- Colormap cmap = (Colormap) c->m_cmap;
- bool destroyable = c->m_destroyable;
- int pix_array_n = c->m_pix_array_n;
- display = (Display*) c->m_display;
-
- if (pix_array_n > 0)
- {
- // XFreeColors(display, cmap, pix_array, pix_array_n, 0);
- // Be careful not to free '0' pixels...
- int i, j;
- for(i=j=0; i<pix_array_n; i=j) {
- while(j<pix_array_n && pix_array[j]!=0) j++;
- if(j > i) XFreeColors(display, cmap, &pix_array[i], j-i, 0);
- while(j<pix_array_n && pix_array[j]==0) j++;
- }
- delete [] pix_array;
- }
-
- if (destroyable)
- XFreeColormap(display, cmap);
-
- next = node->GetNext();
- m_palettes.Erase(node);
- delete c;
- }
-}
-
-wxPalette::wxPalette()
-{
-}
-
-wxPalette::wxPalette(int n, const unsigned char *red, const unsigned char *green, const unsigned char *blue)
-{
- Create(n, red, green, blue);
-}
-
-wxPalette::~wxPalette()
-{
-}
-
-bool wxPalette::Create(int n, const unsigned char *red, const unsigned char *green, const unsigned char *blue)
-{
- UnRef();
-
- if (!n) {
- return false;
- }
-
- m_refData = new wxPaletteRefData;
-
- XColor xcol;
- Display* display = (Display*) wxGetDisplay();
-
- unsigned long *pix_array;
- Colormap cmap;
- int pix_array_n;
-
- cmap = (Colormap) wxTheApp->GetMainColormap(display);
-
- pix_array = new unsigned long[n];
- if (!pix_array)
- return false;
-
- pix_array_n = n;
- xcol.flags = DoRed | DoGreen | DoBlue;
- for(int i = 0; i < n; i++) {
- xcol.red = (unsigned short)(red[i] << 8);
- xcol.green = (unsigned short)(green[i] << 8);
- xcol.blue = (unsigned short)(blue[i] << 8);
- pix_array[i] = (XAllocColor(display, cmap, &xcol) == 0) ? 0 : xcol.pixel;
- }
-
- wxXPalette *c = new wxXPalette;
-
- c->m_pix_array_n = pix_array_n;
- c->m_pix_array = pix_array;
- c->m_cmap = (WXColormap) cmap;
- c->m_display = (WXDisplay*) display;
- c->m_destroyable = false;
- M_PALETTEDATA->m_palettes.Append(c);
-
- return true;
-}
-
-int wxPalette::GetPixel(unsigned char WXUNUSED(red),
- unsigned char WXUNUSED(green),
- unsigned char WXUNUSED(blue)) const
-{
- if ( !m_refData )
- return wxNOT_FOUND;
-
- // TODO
- return wxNOT_FOUND;
-}
-
-bool wxPalette::GetRGB(int index, unsigned char *WXUNUSED(red), unsigned char *WXUNUSED(green), unsigned char *WXUNUSED(blue)) const
-{
- if ( !m_refData )
- return false;
-
- if (index < 0 || index > 255)
- return false;
-
- // TODO
- return false;
-}
-
-WXColormap wxPalette::GetXColormap(WXDisplay* display) const
-{
- if (!M_PALETTEDATA || (M_PALETTEDATA->m_palettes.GetCount() == 0))
- return wxTheApp->GetMainColormap(display);
-
- wxList::compatibility_iterator node = M_PALETTEDATA->m_palettes.GetFirst();
- if (!display && node)
- {
- wxXPalette* p = (wxXPalette*) node->GetData();
- return p->m_cmap;
- }
- while (node)
- {
- wxXPalette* p = (wxXPalette*) node->GetData();
- if (p->m_display == display)
- return p->m_cmap;
-
- node = node->GetNext();
- }
-
- /* Make a new one: */
- wxXPalette *c = new wxXPalette;
- wxXPalette *first =
- (wxXPalette *)M_PALETTEDATA->m_palettes.GetFirst()->GetData();
- XColor xcol;
- int pix_array_n = first->m_pix_array_n;
-
- c->m_pix_array_n = pix_array_n;
- c->m_pix_array = new unsigned long[pix_array_n];
- c->m_display = display;
- c->m_cmap = wxTheApp->GetMainColormap(display);
- c->m_destroyable = false;
-
- xcol.flags = DoRed | DoGreen | DoBlue;
- int i;
- for (i = 0; i < pix_array_n; i++)
- {
- xcol.pixel = first->m_pix_array[i];
- XQueryColor((Display*) first->m_display,
- (Colormap) first->m_cmap, &xcol);
- c->m_pix_array[i] =
- (XAllocColor((Display*) display, (Colormap) c->m_cmap, &xcol) == 0)
- ? 0 : xcol.pixel;
- }
-
- // wxPalette* nonConstThis = (wxPalette*) this;
-
- M_PALETTEDATA->m_palettes.Append(c);
-
- return c->m_cmap;
-}
-
-bool wxPalette::TransferBitmap(void *data, int depth, int size)
-{
- switch(depth) {
- case 8:
- {
- unsigned char *uptr = (unsigned char *)data;
- int pix_array_n;
- unsigned long *pix_array = GetXPixArray((Display*) wxGetDisplay(), &pix_array_n);
- while(size-- > 0)
- {
- if((int)*uptr < pix_array_n)
- *uptr = (unsigned char)pix_array[*uptr];
- uptr++;
- }
-
- return true;
- }
- default:
- return false;
- }
-}
-
-bool wxPalette::TransferBitmap8(unsigned char *data, unsigned long sz,
- void *dest, unsigned int bpp)
-{
- int pix_array_n;
- unsigned long *pix_array = GetXPixArray((Display*) wxGetDisplay(), &pix_array_n);
- switch(bpp) {
- case 8: {
- unsigned char *dptr = (unsigned char *)dest;
- while(sz-- > 0) {
- if((int)*data < pix_array_n)
- *dptr = (unsigned char)pix_array[*data];
- data++;
- dptr++;
- }
- break;
- }
- case 16: {
- unsigned short *dptr = (unsigned short *)dest;
- while(sz-- > 0) {
- if((int)*data < pix_array_n)
- *dptr = (unsigned short)pix_array[*data];
- data++;
- dptr++;
- }
- break;
- }
- case 24: {
- struct rgb24 { unsigned char r, g, b; } *dptr = (struct rgb24 *)dest;
- while(sz-- > 0) {
- if((int)*data < pix_array_n) {
- dptr->r = (unsigned char)(pix_array[*data] & 0xFF);
- dptr->g = (unsigned char)((pix_array[*data] >> 8) & 0xFF);
- dptr->b = (unsigned char)((pix_array[*data] >> 16) & 0xFF);
- }
- data++;
- dptr++;
- }
- break;
- }
- case 32: {
- unsigned long *dptr = (unsigned long *)dest;
- while(sz-- > 0) {
- if((int)*data < pix_array_n)
- *dptr = pix_array[*data];
- data++;
- dptr++;
- }
- break;
- }
- default:
- return false;
- }
- return true;
-}
-
-unsigned long *wxPalette::GetXPixArray(WXDisplay *display, int *n)
-{
- if (!M_PALETTEDATA)
- return (unsigned long*) 0;
- wxList::compatibility_iterator node;
-
- for (node = M_PALETTEDATA->m_palettes.GetFirst(); node;
- node = node->GetNext())
- {
- wxXPalette *c = (wxXPalette *)node->GetData();
- if (c->m_display == display)
- {
- if (n)
- *n = c->m_pix_array_n;
- return c->m_pix_array;
- }
- }
-
- /* Not found; call GetXColormap, which will create it, then this again */
- if (GetXColormap(display))
- return GetXPixArray(display, n);
- else
- return (unsigned long*) 0;
-}
-
-void wxPalette::PutXColormap(WXDisplay* display, WXColormap cm, bool dp)
-{
- UnRef();
-
- m_refData = new wxPaletteRefData;
-
- wxXPalette *c = new wxXPalette;
-
- c->m_pix_array_n = 0;
- c->m_pix_array = (unsigned long*) NULL;
- c->m_display = display;
- c->m_cmap = cm;
- c->m_destroyable = dp;
-
- M_PALETTEDATA->m_palettes.Append(c);
-}
projects / wxWidgets.git / commitdiff
