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167 lines
4.1 KiB
167 lines
4.1 KiB
/*
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* Menu Transparency Preview Widget
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* Copyright (C) 2002 Karol Szwed <gallium@kde.org>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License version 2 as published by the Free Software Foundation.
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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 GNU
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* 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; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include "menupreview.h"
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#include <tqpainter.h>
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#include <tqimage.h>
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#include <kpixmap.h>
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#include <kpixmapeffect.h>
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#include <klocale.h>
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#include <kimageeffect.h>
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#include <kiconloader.h>
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MenuPreview::MenuPreview( TQWidget* parent, int opacity, PreviewMode pvm )
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: TQWidget( parent, 0, (WFlags)(WStyle_Customize | WRepaintNoErase) ),
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pixBackground(NULL), pixOverlay(NULL), pixBlended(NULL)
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{
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setFixedSize(150, 150);
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setFocusPolicy( TQ_NoFocus );
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mode = pvm;
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if (opacity < 0) opacity = 0;
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if (opacity > 100) opacity = 100;
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menuOpacity = opacity/100.0;
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pixBackground = new KPixmap();
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pixOverlay = new KPixmap();
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pixBlended = new KPixmap();
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createPixmaps();
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blendPixmaps();
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}
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MenuPreview::~MenuPreview()
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{
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delete pixBackground;
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delete pixOverlay;
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delete pixBlended;
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}
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void MenuPreview::createPixmaps()
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{
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int w = width()-2;
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int h = height()-2;
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if (pixBackground)
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pixBackground->resize( w, h );
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if (pixOverlay)
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pixOverlay->resize( w, h );
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if (pixBlended)
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pixBlended->resize( w, h );
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TQColorGroup cg = colorGroup();
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TQColor c1 = cg.background();
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TQColor c2 = cg.mid();
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if (pixBackground) {
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// Paint checkerboard
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TQPainter p;
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p.begin(pixBackground);
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for(int x=0; x < pixBackground->width(); x+=5)
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for(int y=0; y < pixBackground->height(); y+=5)
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p.fillRect( x, y, 5, 5,
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(x % 2) ?
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((y % 2) ? c2 : c1 ) : // See the grid? ;-)
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((y % 2) ? c1 : c2 ) );
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KIconLoader* icl = KGlobal::iconLoader();
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TQPixmap pix = icl->loadIcon("go", KIcon::Desktop, KIcon::SizeLarge, KIcon::ActiveState);
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p.drawPixmap( (width()-2-pix.width())/2, (height()-2-pix.height())/2, pix );
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}
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if (pixOverlay) {
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c1 = cg.button().light(110);
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c2 = cg.button().dark(110);
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KPixmapEffect::gradient( *pixOverlay, c1, c2, KPixmapEffect::VerticalGradient );
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}
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}
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void MenuPreview::blendPixmaps()
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{
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// Rebuild pixmaps, and repaint
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if (pixBlended && pixBackground)
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{
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if (mode == Blend && pixOverlay) {
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TQImage src = pixOverlay->convertToImage();
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TQImage dst = pixBackground->convertToImage();
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KImageEffect::blend(src, dst, menuOpacity);
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pixBlended->convertFromImage( dst );
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} else if (mode == Tint) {
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TQColor clr = colorGroup().button();
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TQImage dst = pixBackground->convertToImage();
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KImageEffect::blend(clr, dst, menuOpacity);
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pixBlended->convertFromImage( dst );
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}
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}
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}
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void MenuPreview::setOpacity( int opacity )
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{
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if (opacity < 0 || opacity > 100)
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return;
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if ((int)(menuOpacity*100) != opacity) {
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menuOpacity = opacity/100.0;
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blendPixmaps();
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repaint( false );
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}
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}
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void MenuPreview::setPreviewMode( PreviewMode pvm )
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{
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if (mode != pvm) {
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mode = pvm;
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blendPixmaps();
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repaint( false );
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}
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}
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void MenuPreview::paintEvent( TQPaintEvent* /* pe */ )
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{
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// Paint the frame and blended pixmap
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TQColorGroup cg = colorGroup();
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int x2 = width()-1;
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int y2 = height()-1;
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TQPainter p(this);
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p.setPen(cg.dark());
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p.drawLine(0, 0, x2, 0);
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p.drawLine(0, 0, 0, y2);
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p.setPen(cg.light());
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p.drawLine(1, y2, x2, y2);
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p.drawLine(x2, 1, x2, y2);
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if (mode == NoEffect)
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p.fillRect(1, 1, --x2, --y2, cg.button());
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else if (mode != NoEffect && pixBlended)
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p.drawPixmap(1, 1, *pixBlended, 0, 0, --x2, --y2);
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TQRect r = rect();
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r.moveBy(6,3);
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p.setPen( cg.text() );
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p.drawText( r, AlignTop | AlignLeft, TQString::number((int)(menuOpacity*100))+i18n("%") );
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}
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#include "menupreview.moc"
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// vim: set noet ts=4:
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