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88 lines
2.7 KiB
88 lines
2.7 KiB
/*
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* dragsupport.cpp - part of abakus
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* Copyright (C) 2004, 2005 Michael Pyne <michael.pyne@kdemail.net>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <tqstring.h>
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#include <tqpixmap.h>
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#include <tqimage.h>
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#include <tqpainter.h>
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#include <tqcolor.h>
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#include <tqfont.h>
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#include <tqbrush.h>
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#include <tqfontmetrics.h>
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#include "dragsupport.h"
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namespace DragSupport
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{
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TQPixmap makePixmap(const TQString &text, const TQFont &font)
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{
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TQColor background(234, 178, 230);
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TQFontMetrics fm(font);
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int height = 2 * fm.height();
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TQSize bonusSize (height, 0);
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TQSize size(fm.width(text), height);
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TQImage image(size + bonusSize, 32);
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image.setAlphaBuffer(false);
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image.fill(0); // All transparent pixels
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image.setAlphaBuffer(true);
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TQPixmap pix(size + bonusSize);
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pix.fill(TQt::magenta); // Watch for incoming hacks
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TQPainter painter(&pix);
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painter.setFont(font);
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// Outline black, background white
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painter.setPen(TQt::black);
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painter.setBrush(background);
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// roundRect is annoying in that the four "pies" in each corner aren't
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// circular, they're elliptical. Try to make the radii force it circular
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// again.
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painter.drawRoundRect(pix.rect(), 75 * pix.height() / pix.width(), 75);
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// Alias better names for some constants.
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int textLeft = height / 2;
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// Draw text
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painter.setPen(TQt::black);
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painter.drawText(textLeft, height / 4, size.width(), size.height(), 0, text);
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TQImage overlay(pix.convertToImage());
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// The images should have the same size, copy pixels from overlay to the
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// bottom unless the pixel is called magenta. The pixels we don't copy
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// are transparent in the TQImage, and will remain transparent when
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// converted to a TQPixmap.
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for(int i = 0; i < image.width(); ++i)
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for(int j = 0; j < image.height(); ++j) {
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if(TQColor(overlay.pixel(i, j)) != TQt::magenta)
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image.setPixel(i, j, overlay.pixel(i, j));
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}
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pix.convertFromImage(image);
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return pix;
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}
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} // DragSupport
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