| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: src/x11/utilsx.cpp |
| 3 | // Purpose: Private functions common to X11 and Motif ports |
| 4 | // Author: Mattia Barbon |
| 5 | // Modified by: |
| 6 | // Created: 05/04/03 |
| 7 | // RCS-ID: $Id$ |
| 8 | // Copyright: (c) Mattia Barbon |
| 9 | // Licence: wxWindows licence |
| 10 | ///////////////////////////////////////////////////////////////////////////// |
| 11 | |
| 12 | #ifdef __VMS |
| 13 | #define XShapeQueryExtension XSHAPEQUERYEXTENSION |
| 14 | #define XtDisplay XTDISPLAY |
| 15 | #endif |
| 16 | |
| 17 | #include "wx/x11/privx.h" |
| 18 | |
| 19 | #ifdef HAVE_XSHAPE |
| 20 | #ifdef __VMS |
| 21 | # include <X11/shape.h> |
| 22 | #else |
| 23 | # include <X11/extensions/shape.h> |
| 24 | #endif |
| 25 | #include "wx/region.h" |
| 26 | #include "wx/bitmap.h" |
| 27 | #include "wx/dcmemory.h" |
| 28 | #endif |
| 29 | |
| 30 | // ---------------------------------------------------------------------------- |
| 31 | // XShape code |
| 32 | // ---------------------------------------------------------------------------- |
| 33 | |
| 34 | #ifdef HAVE_XSHAPE |
| 35 | |
| 36 | bool wxDoSetShape( Display* xdisplay, |
| 37 | Window xwindow, |
| 38 | const wxRegion& region ) |
| 39 | { |
| 40 | int dummy1, dummy2; |
| 41 | |
| 42 | if( !XShapeQueryExtension( xdisplay, &dummy1, &dummy2 ) ) |
| 43 | return false; |
| 44 | |
| 45 | if( region.IsEmpty() ) |
| 46 | { |
| 47 | XShapeCombineMask( xdisplay, xwindow, ShapeBounding, 0, 0, |
| 48 | None, ShapeSet ); |
| 49 | } |
| 50 | else |
| 51 | { |
| 52 | // wxRegion::ConvertToBitmap gives us the wrong Pixmap: |
| 53 | // polichrome and with black and whire reversed |
| 54 | wxRect box = region.GetBox(); |
| 55 | wxBitmap bmp(box.GetRight(), box.GetBottom(), 1); |
| 56 | wxMemoryDC dc; |
| 57 | dc.SelectObject(bmp); |
| 58 | dc.SetBackground(*wxBLACK_BRUSH); |
| 59 | dc.Clear(); |
| 60 | dc.SetClippingRegion(region); |
| 61 | dc.SetBackground(*wxWHITE_BRUSH); |
| 62 | dc.Clear(); |
| 63 | dc.SelectObject(wxNullBitmap); |
| 64 | |
| 65 | XShapeCombineMask( xdisplay, xwindow, ShapeBounding, 0, 0, |
| 66 | (Pixmap)bmp.GetDrawable(), ShapeSet ); |
| 67 | } |
| 68 | |
| 69 | return true; |
| 70 | } |
| 71 | |
| 72 | #else |
| 73 | |
| 74 | bool wxDoSetShape( Display* WXUNUSED(xdisplay), |
| 75 | Window WXUNUSED(xwindow), |
| 76 | const wxRegion& WXUNUSED(region) ) |
| 77 | { |
| 78 | return false; |
| 79 | } |
| 80 | |
| 81 | #endif |
| 82 | |
| 83 | // ---------------------------------------------------------------------------- |
| 84 | // wxXVisualInfo |
| 85 | // ---------------------------------------------------------------------------- |
| 86 | |
| 87 | #if !wxUSE_NANOX |
| 88 | |
| 89 | bool wxFillXVisualInfo( wxXVisualInfo* vi, Display* dpy ) |
| 90 | { |
| 91 | int xscreen = DefaultScreen( dpy ); |
| 92 | Visual* vis = DefaultVisual( dpy, xscreen ); |
| 93 | int bpp = DefaultDepth( dpy, xscreen ); |
| 94 | |
| 95 | XVisualInfo vinfo_template; |
| 96 | XVisualInfo *vinfo; |
| 97 | |
| 98 | vinfo_template.visual = vis; |
| 99 | vinfo_template.visualid = XVisualIDFromVisual( vis ); |
| 100 | vinfo_template.depth = bpp; |
| 101 | int nitem = 0; |
| 102 | |
| 103 | vinfo = XGetVisualInfo( dpy, VisualIDMask|VisualDepthMask, |
| 104 | &vinfo_template, &nitem ); |
| 105 | |
| 106 | wxCHECK_MSG( vinfo, false, wxT("no visual") ); |
| 107 | |
| 108 | vi->Init( dpy, vinfo ); |
| 109 | |
| 110 | XFree(vinfo); |
| 111 | |
| 112 | return true; |
| 113 | } |
| 114 | |
| 115 | inline int ABS(int x) { return x < 0 ? -x : x; } |
| 116 | |
| 117 | static void wxCalcPrecAndShift( unsigned long mask, int *shift, int *prec ) |
| 118 | { |
| 119 | *shift = 0; |
| 120 | *prec = 0; |
| 121 | |
| 122 | while (!(mask & 0x1)) |
| 123 | { |
| 124 | (*shift)++; |
| 125 | mask >>= 1; |
| 126 | } |
| 127 | |
| 128 | while (mask & 0x1) |
| 129 | { |
| 130 | (*prec)++; |
| 131 | mask >>= 1; |
| 132 | } |
| 133 | } |
| 134 | |
| 135 | wxXVisualInfo::wxXVisualInfo() |
| 136 | { |
| 137 | m_visualColormap = NULL; |
| 138 | m_colorCube = NULL; |
| 139 | } |
| 140 | |
| 141 | wxXVisualInfo::~wxXVisualInfo() |
| 142 | { |
| 143 | if (m_colorCube) |
| 144 | free( m_colorCube ); |
| 145 | |
| 146 | if (m_visualColormap) |
| 147 | delete [] (XColor*)m_visualColormap; |
| 148 | } |
| 149 | |
| 150 | void wxXVisualInfo::Init( Display* dpy, XVisualInfo* vi ) |
| 151 | { |
| 152 | m_visualType = vi->visual->c_class; |
| 153 | m_visualScreen = vi->screen; |
| 154 | |
| 155 | m_visualRedMask = vi->red_mask; |
| 156 | m_visualGreenMask = vi->green_mask; |
| 157 | m_visualBlueMask = vi->blue_mask; |
| 158 | |
| 159 | if (m_visualType != GrayScale && m_visualType != PseudoColor) |
| 160 | { |
| 161 | wxCalcPrecAndShift( m_visualRedMask, &m_visualRedShift, |
| 162 | &m_visualRedPrec ); |
| 163 | wxCalcPrecAndShift( m_visualGreenMask, &m_visualGreenShift, |
| 164 | &m_visualGreenPrec ); |
| 165 | wxCalcPrecAndShift( m_visualBlueMask, &m_visualBlueShift, |
| 166 | &m_visualBluePrec ); |
| 167 | } |
| 168 | |
| 169 | m_visualDepth = vi->depth; |
| 170 | if (vi->depth == 16) |
| 171 | vi->depth = m_visualRedPrec + m_visualGreenPrec + m_visualBluePrec; |
| 172 | |
| 173 | m_visualColormapSize = vi->colormap_size; |
| 174 | |
| 175 | if (m_visualDepth > 8) |
| 176 | return; |
| 177 | |
| 178 | m_visualColormap = new XColor[m_visualColormapSize]; |
| 179 | XColor* colors = (XColor*) m_visualColormap; |
| 180 | |
| 181 | for (int i = 0; i < m_visualColormapSize; i++) |
| 182 | colors[i].pixel = i; |
| 183 | |
| 184 | XQueryColors( dpy, DefaultColormap(dpy, vi->screen), |
| 185 | colors, m_visualColormapSize ); |
| 186 | |
| 187 | m_colorCube = (unsigned char*)malloc(32 * 32 * 32); |
| 188 | |
| 189 | for (int r = 0; r < 32; r++) |
| 190 | { |
| 191 | for (int g = 0; g < 32; g++) |
| 192 | { |
| 193 | for (int b = 0; b < 32; b++) |
| 194 | { |
| 195 | int rr = (r << 3) | (r >> 2); |
| 196 | int gg = (g << 3) | (g >> 2); |
| 197 | int bb = (b << 3) | (b >> 2); |
| 198 | |
| 199 | int index = -1; |
| 200 | |
| 201 | if (colors) |
| 202 | { |
| 203 | int max = 3 * 65536; |
| 204 | |
| 205 | for (int i = 0; i < m_visualColormapSize; i++) |
| 206 | { |
| 207 | int rdiff = ((rr << 8) - colors[i].red); |
| 208 | int gdiff = ((gg << 8) - colors[i].green); |
| 209 | int bdiff = ((bb << 8) - colors[i].blue); |
| 210 | int sum = ABS (rdiff) + ABS (gdiff) + ABS (bdiff); |
| 211 | if (sum < max) |
| 212 | { |
| 213 | index = i; max = sum; |
| 214 | } |
| 215 | } |
| 216 | } |
| 217 | else |
| 218 | { |
| 219 | // assume 8-bit true or static colors. this really exists |
| 220 | index = (r >> (5 - m_visualRedPrec)) << m_visualRedShift; |
| 221 | index |= (g >> (5 - m_visualGreenPrec)) << m_visualGreenShift; |
| 222 | index |= (b >> (5 - m_visualBluePrec)) << m_visualBlueShift; |
| 223 | } |
| 224 | m_colorCube[ (r*1024) + (g*32) + b ] = index; |
| 225 | } |
| 226 | } |
| 227 | } |
| 228 | } |
| 229 | |
| 230 | #endif // !wxUSE_NANOX |