all repos — fluxbox @ e1f9f6ad3d6ac307c0fa64839e9a9925e3716cb2

custom fork of the fluxbox windowmanager

src/XftFontImp.cc (raw)

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// XftFontImp.cc  Xft font implementation for FbTk
// Copyright (c) 2002 Henrik Kinnunen (fluxgen@linuxmail.org)
// 
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.

//$Id: XftFontImp.cc,v 1.1 2002/10/14 18:14:20 fluxgen Exp $

#include "XftFontImp.hh"
#include "BaseDisplay.hh"

XftFontImp::XftFontImp(const char *name):m_xftfont(0) {
	if (name != 0)
		load(name);
}

XftFontImp::~XftFontImp() {
	if (m_xftfont != 0)
		XftFontClose(BaseDisplay::getXDisplay(), m_xftfont);
}

bool XftFontImp::load(const std::string &name) {
	//Note: assumes screen 0 for now, changes on draw if needed
	
	Display *disp = BaseDisplay::getXDisplay();
	XftFont *newxftfont = XftFontOpenName(disp, 0, name.c_str());
		
	if (newxftfont == 0) // failed to open font, use old fon
		return false;

	// destroy old font and set new
	if (m_xftfont != 0)
		XftFontClose(disp, m_xftfont);

	m_xftfont = newxftfont;

	return true;
}

void XftFontImp::drawText(Drawable w, int screen, GC gc, const char *text, size_t len, int x, int y) const {
	if (m_xftfont == 0)
		return;
	Display *disp = BaseDisplay::getXDisplay();
	XftDraw *draw = XftDrawCreate(disp,
		w,
		DefaultVisual(disp, screen),
		DefaultColormap(disp, screen));

	XGCValues gc_val;

	// get foreground pixel value and convert it to XRenderColor value
	// TODO: we should probably check return status
	XGetGCValues(disp, gc, GCForeground, &gc_val);

	// get red, green, blue values
	XColor xcol;
	xcol.pixel = gc_val.foreground;
	XQueryColor(disp, DefaultColormap(disp, screen), &xcol);

	// convert xcolor to XftColor
	XRenderColor rendcol;
	rendcol.red = xcol.red;
	rendcol.green = xcol.green;
	rendcol.blue = xcol.blue;
	rendcol.alpha = 0xFFFF;
	XftColor xftcolor;	
	XftColorAllocValue(disp, DefaultVisual(disp, screen), DefaultColormap(disp, screen),
		&rendcol, &xftcolor);

	// draw string
	XftDrawString8 (draw,
		&xftcolor,
		m_xftfont,
		x, y,
		(XftChar8 *)(text), len);

	XftColorFree(disp, DefaultVisual(disp, screen), 
		DefaultColormap(disp, screen), &xftcolor);
	XftDrawDestroy(draw);
}

unsigned int XftFontImp::textWidth(const char *text, unsigned int len) const {
	if (m_xftfont == 0)
		return 0;
	XGlyphInfo ginfo;
	XftTextExtents8(BaseDisplay::getXDisplay(),
		m_xftfont,
		(XftChar8 *)text, len,
		&ginfo);
	return ginfo.xOff;
}

unsigned int XftFontImp::height() const {
	if (m_xftfont == 0)
		return 0;
	return m_xftfont->ascent + m_xftfont->descent;
}