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Diffstat (limited to 'kipi-plugins/rawconverter/previewwidget.cpp')
| -rw-r--r-- | kipi-plugins/rawconverter/previewwidget.cpp | 198 |
1 files changed, 198 insertions, 0 deletions
diff --git a/kipi-plugins/rawconverter/previewwidget.cpp b/kipi-plugins/rawconverter/previewwidget.cpp new file mode 100644 index 0000000..e1958f5 --- /dev/null +++ b/kipi-plugins/rawconverter/previewwidget.cpp @@ -0,0 +1,198 @@ +/* ============================================================ + * + * This file is a part of kipi-plugins project + * http://www.kipi-plugins.org + * + * Date : 2003-10-22 + * Description : preview raw file widget used in single convert + * + * Copyright (C) 2003-2005 by Renchi Raju <renchi@pooh.tam.uiuc.edu> + * Copyright (C) 2006-2007 by Gilles Caulier <caulier dot gilles at gmail dot com> + * + * This program is free software; you can redistribute it + * and/or modify it under the terms of the GNU General + * Public License as published by the Free Software Foundation; + * either version 2, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * ============================================================ */ + +// Qt includes. + +#include <qpainter.h> +#include <qimage.h> +#include <qstring.h> +#include <qevent.h> +#include <qtimer.h> +#include <qfile.h> + +// KDE includes. + +#include <klocale.h> + +// Local includes. + +#include "previewwidget.h" +#include "previewwidget.moc" + +namespace KIPIRawConverterPlugin +{ + +class PreviewWidgetPriv +{ +public: + + PreviewWidgetPriv() + { + pix = 0; + timer = 0; + } + + QPixmap *pix; + QPixmap preview; + + QTimer *timer; + + QString text; + + QImage image; +}; + +PreviewWidget::PreviewWidget(QWidget *parent) + : QFrame(parent, 0, Qt::WRepaintNoErase) +{ + d = new PreviewWidgetPriv; + setFrameStyle(QFrame::GroupBoxPanel|QFrame::Plain); + setMargin(0); + setLineWidth(1); + + setMinimumSize(QSize(400, 300)); + setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding); + + d->pix = new QPixmap(400, 300); + d->pix->fill(Qt::black); + + d->timer = new QTimer(this); + + connect(d->timer, SIGNAL(timeout()), + this, SLOT(slotResize())); +} + +PreviewWidget::~PreviewWidget() +{ + delete d; +} + +void PreviewWidget::load(const QString& file) +{ + d->text = ""; + d->pix->fill(Qt::black); + d->image.load(file); + + if (!d->image.isNull()) + { + QImage img = d->image.scale(width(),height(),QImage::ScaleMin); + int x = d->pix->width()/2 - img.width()/2; + int y = d->pix->height()/2 - img.height()/2; + + QPainter p(d->pix); + p.drawImage(x, y, img); + p.setPen(QPen(Qt::white)); + p.drawRect(x,y,img.width(),img.height()); + p.end(); + } + else + { + setInfo(i18n( "Failed to load image after processing" )); + return; + } + + update(); +} + +void PreviewWidget::setInfo(const QString& text, const QColor& color, const QPixmap& preview) +{ + d->text = text; + d->preview = preview; + d->pix->fill(Qt::black); + QPainter p(d->pix); + p.setPen(QPen(color)); + + if (!d->preview.isNull()) + { + p.drawPixmap(d->pix->width()/2-d->preview.width()/2, d->pix->height()/4-d->preview.height()/2, + d->preview, 0, 0, d->preview.width(), d->preview.height()); + p.drawText(0, d->pix->height()/2, d->pix->width(), d->pix->height()/2, + Qt::AlignCenter|Qt::WordBreak, d->text); + } + else + { + p.drawText(0, 0, d->pix->width(), d->pix->height(), + Qt::AlignCenter|Qt::WordBreak, d->text); + } + p.end(); + update(); +} + +void PreviewWidget::paintEvent(QPaintEvent *e) +{ + QRect r(e->rect()); + bitBlt(this, r.topLeft(), d->pix, r, Qt::CopyROP); +} + +void PreviewWidget::resizeEvent(QResizeEvent*) +{ + d->timer->start(10,true); +} + +void PreviewWidget::slotResize() +{ + if (d->timer->isActive()) return; + + d->pix->resize(width(),height()); + d->pix->fill(Qt::black); + if (!d->text.isEmpty()) + { + QPainter p(d->pix); + p.setPen(QPen(Qt::white)); + + if (!d->preview.isNull()) + { + p.drawPixmap(d->pix->width()/2-d->preview.width()/2, d->pix->height()/4-d->preview.height()/2, + d->preview, 0, 0, d->preview.width(), d->preview.height()); + p.drawText(0, d->pix->height()/2, d->pix->width(), d->pix->height()/2, + Qt::AlignCenter|Qt::WordBreak, d->text); + } + else + { + p.drawText(0, 0, d->pix->width(), d->pix->height(), + Qt::AlignCenter|Qt::WordBreak, d->text); + } + + p.end(); + } + else + { + if (!d->image.isNull()) + { + QImage img = d->image.scale(width(),height(), QImage::ScaleMin); + int x = d->pix->width()/2 - img.width()/2; + int y = d->pix->height()/2 - img.height()/2; + + QPainter p(d->pix); + p.drawImage(x, y, img); + p.setPen(QPen(Qt::white)); + p.drawRect(x,y,img.width(),img.height()); + p.end(); + } + } + + update(); +} + +} // NameSpace KIPIRawConverterPlugin + |