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00edcc582f
Basically, I replaced all methods in the font_metrics namespace by a proper virtual interface FontMetrics. The FontLoader is _the_ container for FontMetrics. This patch should also bring some optimizations in a number of place in the code. This is because we do not need any more to search for the LyXFont at each font_metrics call. In effect, the speed advantage is not as sensible and this is a bit deceiving considering that this was my primary motivation behind the patch. But I like the patch anyway as it cleans up the relation and interfacing between fonts, metrics and frontends. * frontends/FontMetrics.h: new virtual interface. Renamed from font_metrics.h * qt4/GuiFontMetrics: corresponding qt4 implememtation. Renamed from qfont_metrics.C. The smallCaps particular case treatment has been transfered here as well as the width cache for MacOSX and Windows. * qt4/QLPainter.C: the smallCapsText has been reworked to return the width of the drawn text.C all other files: replace font_metric helper function call with corresponding FontMetrics method calls. git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@15265 a592a061-630c-0410-9148-cb99ea01b6c8
108 lines
2.3 KiB
C
108 lines
2.3 KiB
C
/**
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* \file Painter.C
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* This file is part of LyX, the document processor.
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* Licence details can be found in the file COPYING.
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*
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* \author unknown
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* \author John Levon
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*
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* Full author contact details are available in file CREDITS.
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*/
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#include <config.h>
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#include "frontends/Painter.h"
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#include "frontends/Application.h"
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#include "frontends/FontLoader.h"
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#include "frontends/FontMetrics.h"
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#include "LColor.h"
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#include "lyxfont.h"
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using lyx::docstring;
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using std::max;
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using std::string;
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namespace lyx {
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namespace frontend {
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void Painter::button(int x, int y, int w, int h)
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{
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fillRectangle(x, y, w, h, LColor::buttonbg);
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buttonFrame(x, y, w, h);
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}
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void Painter::buttonFrame(int x, int y, int w, int h)
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{
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// Width of a side of the button
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int const d = 2;
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fillRectangle(x, y, w, d, LColor::top);
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fillRectangle(x, y + h - d, w, d, LColor::bottom);
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for (int i = 0 ; i < d ; ++i) {
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line(x + i, y + i,
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x + i, y + h - 1 - i, LColor::left);
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line(x + w - 1 - i, y + i + 1,
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x + w - 1 - i, y + h - 1 - i, LColor::right);
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}
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}
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void Painter::rectText(int x, int y,
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docstring const & str,
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LyXFont const & font,
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LColor_color back,
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LColor_color frame)
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{
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int width;
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int ascent;
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int descent;
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FontMetrics const & fm = theApp->fontLoader().metrics(font);
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fm.rectText(str, width, ascent, descent);
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if (back != LColor::none)
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fillRectangle(x + 1, y - ascent + 1, width - 1,
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ascent + descent - 1, back);
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if (frame != LColor::none)
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rectangle(x, y - ascent, width, ascent + descent, frame);
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text(x + 3, y, str, font);
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}
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void Painter::buttonText(int x, int y, docstring const & str, LyXFont const & font)
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{
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int width;
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int ascent;
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int descent;
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FontMetrics const & fm = theApp->fontLoader().metrics(font);
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fm.buttonText(str, width, ascent, descent);
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button(x, y - ascent, width, descent + ascent);
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text(x + 4, y, str, font);
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}
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void Painter::underline(LyXFont const & f, int x, int y, int width)
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{
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FontMetrics const & fm = theApp->fontLoader().metrics(f);
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int const below = max(fm.maxDescent() / 2, 2);
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int const height = max((fm.maxDescent() / 4) - 1, 1);
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if (height < 2)
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line(x, y + below, x + width, y + below, f.color());
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else
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fillRectangle(x, y + below, width, below + height, f.color());
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}
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} // namespace frontend
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} // namespace lyx
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