diff options
Diffstat (limited to 'src/sq_slideshowwidget.cpp')
| -rw-r--r-- | src/sq_slideshowwidget.cpp | 366 |
1 files changed, 366 insertions, 0 deletions
diff --git a/src/sq_slideshowwidget.cpp b/src/sq_slideshowwidget.cpp new file mode 100644 index 0000000..167fb44 --- /dev/null +++ b/src/sq_slideshowwidget.cpp @@ -0,0 +1,366 @@ +/*************************************************************************** + sq_slideshowwidget.cpp - description + ------------------- + begin : ??? Mar 30 2007 + copyright : (C) 2007 by Baryshev Dmitry + email : [email protected] + ***************************************************************************/ + +/*************************************************************************** + * * + * 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 of the License, or * + * (at your option) any later version. * + * * + ***************************************************************************/ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <tqimage.h> +#include <tqpainter.h> +#include <tqtimer.h> +#include <tqtoolbutton.h> +#include <tqhbox.h> +#include <tqfileinfo.h> +#include <tqfont.h> +#include <tqlabel.h> +#include <tqwhatsthis.h> + +#include <kcursor.h> +#include <tdelocale.h> +#include <tdeio/global.h> +#include <tdeglobalsettings.h> + +#include <ksquirrel-libs/fmt_defs.h> + +#include "ksquirrel.h" +#include "sq_slideshowwidget.h" +#include "sq_imageloader.h" +#include "sq_iconloader.h" +#include "sq_config.h" +#include "sq_utils.h" + +#ifdef SQ_HAVE_KEXIF +#include <libkexif/kexifdata.h> +#include <algorithm> +#endif + +SQ_SlideShowWidget * SQ_SlideShowWidget::m_inst = 0; + +SQ_SlideShowWidget::SQ_SlideShowWidget(TQWidget *parent, const char *name) + : TQWidget(parent,name, TQt::WStyle_Customize | TQt::WStyle_NoBorder | TQt::WStyle_StaysOnTop | TQt::WNoAutoErase) +{ + m_inst = this; + + timerHide = new TQTimer(this); + + message = new TQLabel(this); + + TQFont f = message->font(); + f.setPointSize(12); + f.setBold(true); + message->setFont(f); + message->setMargin(4); + message->setFrameShape(TQFrame::NoFrame); + + connect(timerHide, TQ_SIGNAL(timeout()), this, TQ_SLOT(slotHide())); + + options = new TQHBox(this, "tde toolbar widget"); + options->setSpacing(0); + options->setMargin(1); + options->move(0, 0); + options->hide(); + message->hide(); + + int is = TDEIcon::SizeMedium; + + TQToolButton *b = new TQToolButton(options); + b->setIconSet(SQ_IconLoader::instance()->loadIcon("go-previous", TDEIcon::Desktop, is)); + connect(b, TQ_SIGNAL(clicked()), this, TQ_SIGNAL(previous())); + connect(b, TQ_SIGNAL(clicked()), this, TQ_SLOT(slotResetPause())); + + b = new TQToolButton(options); + b->setIconSet(SQ_IconLoader::instance()->loadIcon("go-next", TDEIcon::Desktop, is)); + connect(b, TQ_SIGNAL(clicked()), this, TQ_SIGNAL(next())); + connect(b, TQ_SIGNAL(clicked()), this, TQ_SLOT(slotResetPause())); + + buttonPause = new TQToolButton(options); + buttonPause->setToggleButton(true); + buttonPause->setIconSet(SQ_IconLoader::instance()->loadIcon("media-playback-pause", TDEIcon::Desktop, is)); + connect(buttonPause, TQ_SIGNAL(clicked()), this, TQ_SIGNAL(pause())); + + b = new TQToolButton(options); + b->setIconSet(SQ_IconLoader::instance()->loadIcon("help", TDEIcon::Desktop, is)); + connect(b, TQ_SIGNAL(clicked()), this, TQ_SLOT(slotShowHelp())); + + b = new TQToolButton(options); + b->setIconSet(SQ_IconLoader::instance()->loadIcon("cancel", TDEIcon::Desktop, is)); + connect(b, TQ_SIGNAL(clicked()), this, TQ_SIGNAL(stopSlideShow())); + + options->adjustSize(); + message->setFixedHeight(options->height()); + + options->installEventFilter(this); + + KCursor::setAutoHideCursor(this, true); + KCursor::setHideCursorDelay(2500); +} + +SQ_SlideShowWidget::~SQ_SlideShowWidget() +{} + +void SQ_SlideShowWidget::beginSlideShow(int totl) +{ + total = totl; + + SQ_Config::instance()->setGroup("Slideshow"); + + bgcolor.setNamedColor(SQ_Config::instance()->readEntry("background", "#4e4e4e")); + + messages = SQ_Config::instance()->readBoolEntry("messages", true); + mes_pos = SQ_Config::instance()->readBoolEntry("messages_pos", true); + mes_name = SQ_Config::instance()->readBoolEntry("messages_name", true); + mes_size = SQ_Config::instance()->readBoolEntry("messages_size", false); + tcolor.setNamedColor(SQ_Config::instance()->readEntry("message_text", "#ffffff")); + + // fake transparency + message->setPaletteForegroundColor(tcolor); + message->setPaletteBackgroundColor(bgcolor); + + show(); + setGeometry(TDEGlobalSettings::desktopGeometry(KSquirrel::app())); + + message->hide(); + options->hide(); + + if(messages) + { + message->move(0, 0); + message->show(); + } + + path = ""; + current = 0; + buttonPause->setOn(false); + + setFocus(); +} + +void SQ_SlideShowWidget::endSlideShow() +{ + options->hide(); + message->hide(); + hide(); + + pixmap = TQPixmap(); +} + +void SQ_SlideShowWidget::loadImage(const TQString &_path, int _current) +{ + fmt_info *finfo; + RGBA *bits; + + // load first page + bool b = SQ_ImageLoader::instance()->loadImage(_path, SQ_CodecSettings::ImageViewer); + + finfo = SQ_ImageLoader::instance()->info(); + bits = SQ_ImageLoader::instance()->bits(); + + // memory allocation failed in SQ_ImageLoader::loadImage() + if(!b || !bits || !finfo->image.size()) + return; + + path = _path; + current = _current; + + constructMessage(); + + pixmap = TQPixmap(); + + int w = finfo->image[0].w; + int h = finfo->image[0].h; + TQImage *all = 0, *small = 0; + + all = new TQImage((uchar *)bits, w, h, 32, 0, 0, TQImage::LittleEndian); + all->setAlphaBuffer(true); + + // scale down to fit into window + if(w > width() || h > height()) + { + small = new TQImage(); + *small = SQ_Utils::scale(*all, width(), height(), SQ_Utils::SMOOTH_FAST, TQImage::ScaleMin); + + delete all; + all = 0; + + if(small->isNull()) + { + SQ_ImageLoader::instance()->cleanup(); + return; + } + } + else + small = all; + + const int wh = small->width() * small->height(); + unsigned char t; + RGBA *sk = reinterpret_cast<RGBA *>(small->bits()); + + // swap R and B components - TQPixmap need it + for(int i = 0;i < wh;i++) + { + t = (sk+i)->r; + (sk+i)->r = (sk+i)->b; + (sk+i)->b = t; + } + +#ifdef SQ_HAVE_KEXIF + KExifData data; + data.readFromFile(_path); + int O = data.getImageQt::Orientation(); + + if(O != KExifData::UNSPECIFIED && O != KExifData::NORMAL) + { + // copy original image + TQImage img = *small; + + // rotate image + SQ_Utils::exifRotate(TQString(), img, O); + + // transfer back + *small = img; + } +#endif + + pixmap.convertFromImage(*small); + + // finally clean all memory buffers + SQ_ImageLoader::instance()->cleanup(); + + delete small; + + // show loaded image + update(); +} + +void SQ_SlideShowWidget::paintEvent(TQPaintEvent *e) +{ + TQPainter p(this); + + p.setClipRect(e->rect()); + p.fillRect(e->rect(), bgcolor); + + if(!pixmap.isNull()) + p.drawPixmap((width() - pixmap.width()) / 2, (height() - pixmap.height()) / 2, pixmap); +} + +void SQ_SlideShowWidget::closeEvent(TQCloseEvent *e) +{ + emit stopSlideShow(); + + e->ignore(); +} + +void SQ_SlideShowWidget::keyPressEvent(TQKeyEvent *e) +{ + if(e->key() == TQt::Key_Enter || e->key() == TQt::Key_Escape || e->key() == TQt::Key_Return) + close(); + else if(e->key() == TQt::Key_Pause || e->key() == TQt::Key_Space) + { + buttonPause->toggle(); + emit pause(); + } + else if(e->key() == TQt::Key_PageUp) + emit previous(); + else if(e->key() == TQt::Key_PageDown) + emit next(); + else if(e->key() == TQt::Key_M) + { + SQ_Config::instance()->setGroup("Slideshow"); + + messages = SQ_Config::instance()->readBoolEntry("messages", true); + messages = !messages; + SQ_Config::instance()->writeEntry("messages", messages); + + if(options->isVisible() && messages) + message->move(options->width()+1, 0); + + constructMessage(); + + message->setShown(messages); + } + + e->accept(); +} + +void SQ_SlideShowWidget::mouseMoveEvent(TQMouseEvent *) +{ + if(!options->isVisible()) + { + options->show(); + if(messages) message->move(options->width()+1, 0); + } + + timerHide->start(1500, true); +} + +void SQ_SlideShowWidget::slotHide() +{ + options->hide(); + + if(messages) message->move(0, 0); +} + +bool SQ_SlideShowWidget::eventFilter(TQObject *, TQEvent *e) +{ + if(e->type() == TQEvent::Enter) + { + timerHide->stop(); + return true; + } + + return false; +} + +void SQ_SlideShowWidget::slotShowHelp() +{ + TQWhatsThis::display(i18n( + "<table cellspacing=0>" + "<tr><td><b>Enter, Escape, Return</b></td><td>stop slideshow</td></tr>" + "<tr><td><b>Pause, Space</b></td><td>pause/unpause slideshow</td></tr>" + "<tr><td><b>Page Up</b></td><td>previous image</td></tr>" + "<tr><td><b>Page Down</b></td><td>next image</td></tr>" + "<tr><td><b>M</b></td><td>show/hide onscreen messages</td></tr>" + "</table>" + )); +} + +void SQ_SlideShowWidget::constructMessage() +{ + // construct onscreen message + if(messages) + { + TQFileInfo fm(path); + TQString s_message; + + if(mes_pos) s_message = TQString::fromLatin1("[%1/%2] ").arg(current+1).arg(total); + + if(mes_name) s_message += fm.fileName(); + + if(mes_size) + s_message = (mes_name || mes_pos) ? (s_message + " (" + TDEIO::convertSize(fm.size()) + ')') : TDEIO::convertSize(fm.size()); + + message->setText(s_message); + message->adjustSize(); + } +} + +void SQ_SlideShowWidget::slotResetPause() +{ + buttonPause->setOn(false); +} + +#include "sq_slideshowwidget.moc" |