143 lines
4.7 KiB
C++
143 lines
4.7 KiB
C++
// XftFontImp.cc Xft font implementation for FbTk
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// Copyright (c) 2002 Henrik Kinnunen (fluxgen@linuxmail.org)
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the "Software"),
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// to deal in the Software without restriction, including without limitation
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// the rights to use, copy, modify, merge, publish, distribute, sublicense,
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// and/or sell copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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//$Id: XftFontImp.cc,v 1.2 2002/12/01 13:42:15 rathnor Exp $
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#include "XftFontImp.hh"
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#include "App.hh"
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif //HAVE_CONFIG_H
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namespace FbTk {
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XftFontImp::XftFontImp(const char *name, bool utf8):m_xftfont(0),
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m_utf8mode(utf8) {
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if (name != 0)
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load(name);
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}
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XftFontImp::~XftFontImp() {
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if (m_xftfont != 0)
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XftFontClose(App::instance()->display(), m_xftfont);
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}
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bool XftFontImp::load(const std::string &name) {
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//Note: assumes screen 0 for now, changes on draw if needed
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Display *disp = App::instance()->display();
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XftFont *newxftfont = XftFontOpenName(disp, 0, name.c_str());
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if (newxftfont == 0) { // failed to open font, lets test with XLFD
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newxftfont = XftFontOpenXlfd(disp, 0, name.c_str());
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if (newxftfont == 0)
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return false;
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}
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// destroy old font and set new
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if (m_xftfont != 0)
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XftFontClose(disp, m_xftfont);
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m_xftfont = newxftfont;
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return true;
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}
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void XftFontImp::drawText(Drawable w, int screen, GC gc, const char *text, size_t len, int x, int y) const {
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if (m_xftfont == 0)
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return;
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Display *disp = App::instance()->display();
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XftDraw *draw = XftDrawCreate(disp,
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w,
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DefaultVisual(disp, screen),
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DefaultColormap(disp, screen));
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XGCValues gc_val;
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// get foreground pixel value and convert it to XRenderColor value
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// TODO: we should probably check return status
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XGetGCValues(disp, gc, GCForeground, &gc_val);
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// get red, green, blue values
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XColor xcol;
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xcol.pixel = gc_val.foreground;
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XQueryColor(disp, DefaultColormap(disp, screen), &xcol);
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// convert xcolor to XftColor
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XRenderColor rendcol;
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rendcol.red = xcol.red;
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rendcol.green = xcol.green;
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rendcol.blue = xcol.blue;
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rendcol.alpha = 0xFFFF;
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XftColor xftcolor;
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XftColorAllocValue(disp, DefaultVisual(disp, screen), DefaultColormap(disp, screen),
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&rendcol, &xftcolor);
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// draw string
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#ifdef HAVE_XFT_UTF8_STRING
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if (m_utf8mode) {
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XftDrawStringUtf8(draw,
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&xftcolor,
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m_xftfont,
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x, y,
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(XftChar8 *)(text), len);
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} else
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#endif // HAVE_XFT_UTF8_STRING
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{
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XftDrawString8(draw,
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&xftcolor,
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m_xftfont,
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x, y,
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(XftChar8 *)(text), len);
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}
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XftColorFree(disp, DefaultVisual(disp, screen),
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DefaultColormap(disp, screen), &xftcolor);
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XftDrawDestroy(draw);
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}
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unsigned int XftFontImp::textWidth(const char * const text, unsigned int len) const {
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if (m_xftfont == 0)
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return 0;
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XGlyphInfo ginfo;
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#ifdef HAVE_XFT_UTF8_STRING
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if (m_utf8mode) {
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XftTextExtentsUtf8(App::instance()->display(),
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m_xftfont,
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(XftChar8 *)text, len,
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&ginfo);
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} else
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#endif //HAVE_XFT_UTF8_STRING
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{
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XftTextExtents8(App::instance()->display(),
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m_xftfont,
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(XftChar8 *)text, len,
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&ginfo);
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}
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return ginfo.xOff;
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}
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unsigned int XftFontImp::height() const {
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if (m_xftfont == 0)
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return 0;
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return m_xftfont->height;
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}
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}; // end namespace FbTk
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