AlsaMixer.app/Xpm.cc

   1 //
   2 //  Mixer.app
   3 //
   4 //  Copyright (c) 1998-2002 Per Liden
   5 //
   6 //  This program is free software; you can redistribute it and/or modify
   7 //  it under the terms of the GNU General Public License as published by
   8 //  the Free Software Foundation; either version 2 of the License, or
   9 //  (at your option) any later version.
  10 //
  11 //  This program is distributed in the hope that it will be useful,
  12 //  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 //  GNU General Public License for more details.
  15 //
  16 //  You should have received a copy of the GNU General Public License
  17 //  along with this program; if not, write to the Free Software
  18 //  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  19 //  USA.
  20 //
  21
  22 #include <X11/Xlib.h>
  23 #include <X11/xpm.h>
  24 #include <X11/extensions/shape.h>
  25 #include <iostream>
  26 #include <cstdlib>
  27 #include <cstring>
  28 #include "Mixer.h"
  29 #include "Xpm.h"
  30
  31 using namespace std;
  32
  33 Xpm::Xpm(Display* display, Window root, char** data)
  34 {
  35    int error;
  36
  37    mDisplay = display;
  38
  39    mAttributes.valuemask = 0;
  40    error = XpmCreatePixmapFromData(mDisplay, root, data, &mImage, &mMask, &mAttributes);
  41
  42    switch (error) {
  43    case XpmColorError:
  44       cerr << APPNAME << ": xpm image loaded but did not get all colors needed" << endl;
  45       break;
  46
  47    case XpmColorFailed:
  48       cerr << APPNAME << ": could not load xpm image (not enough colors available)" << endl;
  49       exit(0);
  50       break;
  51
  52    case XpmNoMemory:
  53       cerr << APPNAME << ": could not load xpm image (not enough memory available)" << endl;
  54       exit(0);
  55       break;
  56
  57    case XpmOpenFailed:
  58    case XpmFileInvalid:
  59       cerr << APPNAME << ": could not load xpm image (image broken or corrupt)" << endl;
  60       exit(0);
  61       break;
  62
  63    case XpmSuccess:
  64    default:
  65       // Image loaded ok
  66       break;
  67    }
  68 }
  69
  70 Xpm::~Xpm()
  71 {
  72    if (mImage) {
  73       XFreePixmap(mDisplay, mImage);
  74    }
  75
  76    if (mMask) {
  77       XFreePixmap(mDisplay, mMask);
  78    }
  79 }
  80
  81 void Xpm::setWindowPixmap(Window win)
  82 {
  83    XResizeWindow(mDisplay, win, mAttributes.width, mAttributes.height);
  84    XSetWindowBackgroundPixmap(mDisplay, win, mImage);
  85 }
  86
  87 void Xpm::setWindowPixmapShaped(Window win)
  88 {
  89    XResizeWindow(mDisplay, win, mAttributes.width, mAttributes.height);
  90    XSetWindowBackgroundPixmap(mDisplay, win, mImage);
  91    XShapeCombineMask(mDisplay, win, ShapeBounding, 0, 0, mMask, ShapeSet);
  92 }
  93
  94 void Xpm::drawString(int x, int y, char* text)
  95 {
  96    Font      font;
  97    GC        gc;
  98    XGCValues gcv;
  99
 100    font = XLoadFont(mDisplay, LABEL_FONT);
 101    gcv.font = font;
 102    gcv.foreground = WhitePixel(mDisplay, DefaultScreen(mDisplay));
 103    gc = XCreateGC(mDisplay, mImage, GCFont | GCForeground, &gcv);
 104    XDrawString(mDisplay, mImage, gc, x, y, text, strlen(text));
 105    XFreeGC(mDisplay, gc);
 106    XUnloadFont(mDisplay, font);
 107 }