/////////////////////////////////////////////////////////////////////////////
-// Name: colour.cpp
+// Name: src/motif/colour.cpp
// Purpose: wxColour class
// Author: Julian Smart
// Modified by:
// Created: 17/09/98
// RCS-ID: $Id$
// Copyright: (c) Julian Smart
-// Licence: wxWindows licence
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
//// TODO: make wxColour a ref-counted object,
//// so pixel values get shared.
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-#pragma implementation "colour.h"
-#endif
+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
-#include "wx/gdicmn.h"
#include "wx/colour.h"
-#include "wx/app.h"
+
+#ifndef WX_PRECOMP
+ #include "wx/app.h"
+ #include "wx/gdicmn.h"
+#endif
#ifdef __VMS__
#pragma message disable nosimpint
IMPLEMENT_DYNAMIC_CLASS(wxColour, wxObject)
+wxCOMPILE_TIME_ASSERT( sizeof(WXPixel) == sizeof(Pixel), PixelSizeIsOk );
+
// Colour
-wxColour::wxColour ()
+void wxColour::Init()
{
- m_isInit = FALSE;
- m_red =
- m_blue =
- m_green = 0;
+ m_isInit = false;
+ m_red = m_blue = m_green = 0;
m_pixel = -1;
}
-wxColour::wxColour (const wxColour& col)
+wxColour::wxColour(const wxColour& col)
{
*this = col;
}
return *this;
}
-void wxColour::InitFromName(const wxString& name)
+wxColour::~wxColour()
{
- *this = wxTheColourDatabase->Find(name);
}
-wxColour::~wxColour ()
-{
-}
-
-void wxColour::Set (unsigned char r, unsigned char g, unsigned char b)
+void wxColour::InitRGBA(unsigned char r, unsigned char g, unsigned char b,
+ unsigned char WXUNUSED(a))
{
m_red = r;
m_green = g;
m_blue = b;
- m_isInit = TRUE;
+ m_isInit = true;
m_pixel = -1;
}
// Allocate a colour, or nearest colour, using the given display.
-// If realloc is TRUE, ignore the existing pixel, otherwise just return
+// If realloc is true, ignore the existing pixel, otherwise just return
// the existing one.
// Returns the old or allocated pixel.
// TODO: can this handle mono displays? If not, we should have an extra
// flag to specify whether this should be black or white by default.
-int wxColour::AllocColour(WXDisplay* display, bool realloc)
+WXPixel wxColour::AllocColour(WXDisplay* display, bool realloc)
{
if ((m_pixel != -1) && !realloc)
return m_pixel;
-
+
XColor color;
color.red = (unsigned short) Red ();
- color.red |= color.red << 8;
+ color.red |= (unsigned short)(color.red << 8);
color.green = (unsigned short) Green ();
- color.green |= color.green << 8;
+ color.green |= (unsigned short)(color.green << 8);
color.blue = (unsigned short) Blue ();
- color.blue |= color.blue << 8;
-
+ color.blue |= (unsigned short)(color.blue << 8);
+
color.flags = DoRed | DoGreen | DoBlue;
-
+
WXColormap cmap = wxTheApp->GetMainColormap(display);
-
+
if (!XAllocColor ((Display*) display, (Colormap) cmap, &color))
{
m_pixel = wxGetBestMatchingPixel((Display*) display, &color,(Colormap) cmap);
}
else
{
- m_pixel = (int) color.pixel;
+ m_pixel = (WXPixel) color.pixel;
return m_pixel;
}
}
may give better matching.
-------------------------------------------*/
-int wxGetBestMatchingPixel(Display *display, XColor *desiredColor, Colormap cmap)
+WXPixel wxGetBestMatchingPixel(Display *display, XColor *desiredColor, Colormap cmap)
{
if (cmap == (Colormap) NULL)
cmap = (Colormap) wxTheApp->GetMainColormap(display);
-
+
int numPixVals = XDisplayCells(display, DefaultScreen (display));
int mindist = 256 * 256 * 3;
- int bestpixel = (int) BlackPixel (display, DefaultScreen (display));
+ Pixel bestpixel = BlackPixel (display, DefaultScreen (display));
int red = desiredColor->red >> 8;
int green = desiredColor->green >> 8;
int blue = desiredColor->blue >> 8;
const int threshold = 2 * 2 * 3; // allow an error of up to 2 in R,G & B
-
+
for (int pixelcount = 0; pixelcount < numPixVals; pixelcount++)
{
XColor matching_color;
matching_color.pixel = pixelcount;
XQueryColor(display,cmap,&matching_color);
-
+
int delta_red = red - (matching_color.red >> 8);
int delta_green = green - (matching_color.green >> 8);
int delta_blue = blue - (matching_color.blue >> 8);
-
+
int dist = delta_red * delta_red +
delta_green * delta_green +
delta_blue * delta_blue;
-
+
if (dist <= threshold)
{
// try to allocate a read-only colour...