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Diffstat (limited to 'katapult/common/imagedisplay.cpp')
| -rw-r--r-- | katapult/common/imagedisplay.cpp | 453 |
1 files changed, 453 insertions, 0 deletions
diff --git a/katapult/common/imagedisplay.cpp b/katapult/common/imagedisplay.cpp new file mode 100644 index 0000000..7832198 --- /dev/null +++ b/katapult/common/imagedisplay.cpp @@ -0,0 +1,453 @@ +/*************************************************************************** + * Copyright (C) 2005 by Joe Ferris * + * jferris@optimistictech.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 of the License, 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. * + * * + * You should have received a copy of the GNU General Public License * + * along with this program; if not, write to the * + * Free Software Foundation, Inc., * + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * + ***************************************************************************/ + +#include <imagedisplay.moc> + +#include <kglobal.h> +#include <kglobalsettings.h> +#include <kiconloader.h> +#include <kwin.h> +#include <kimageeffect.h> +#include <kgenericfactory.h> +#include <kconfig.h> +#include <kfontcombo.h> +#include <klocale.h> + +#include <qpainter.h> +#include <qapplication.h> +#include <qimage.h> +#include <qbitmap.h> +#include <qslider.h> +#include <qspinbox.h> +#include <qcursor.h> + +#include <status.h> + +#include "imagedisplay.h" +#include "imagedisplaysettings.h" + +#define FADEINTERVAL 20 +#define FADECONST 2000 + +ImageDisplay::ImageDisplay(QObject *, const char *name, const QStringList&) + : KatapultDisplay(name, WType_TopLevel | WStyle_Customize | WStyle_NoBorder | WStyle_StaysOnTop | WNoAutoErase | WDestructiveClose) +{ + KWin::setType(winId(), NET::Dock); + setBackgroundMode(NoBackground); + setFocusPolicy(QWidget::StrongFocus); + + singlebg = 0; + doublebg = 0; + + singlesize[0] = 0; + singlesize[1] = 0; + doublesize[0] = 0; + doublesize[1] = 0; + padding = 0; + margin[0] = 0; + margin[1] = 0; + margin[2] = 0; + margin[3] = 0; + iconsize = 0; + + bgSngl = 0; + bgDbl = 0; + + fadeImg = 0; + + alpha = 0; + fadeTimer = new QTimer(this); + connect(fadeTimer, SIGNAL(timeout()), this, SLOT(continueFade())); + + desktopSize = qApp->desktop()->availableGeometry(QCursor::pos()); + + fadeTime = 250; + updateFadeStep(); +} + +ImageDisplay::~ImageDisplay() +{ + if(singlebg != 0) + delete singlebg; + if(doublebg != 0) + delete doublebg; + if(bgSngl != 0) + delete bgSngl; + if(bgDbl != 0) + delete bgDbl; + if(fadeImg != 0) + delete fadeImg; +} + +void ImageDisplay::continueFade() +{ + if(fadeOut) + { + if(fadeStep == 0) + alpha = 0; + else + alpha -= fadeStep; + if(alpha <= 0) + { + alpha = 0; + fadeTimer->stop(); + hide(); + } + } else { + if(fadeStep == 0) + alpha = 100; + else + alpha += fadeStep; + if(alpha > 100) + { + alpha = 100; + fadeTimer->stop(); + if(fadeImg != 0) + { + delete fadeImg; + fadeImg = 0; + } + } + } + update(); +} + +void ImageDisplay::showEvent(QShowEvent *) +{ + // set back the display-size, because if it wouldn't be done this could be a problem-source. + displaySize = 0; + + if(bgSngl != 0) + delete bgSngl; + if(bgDbl != 0) + delete bgDbl; + + bgSngl = new QPixmap(QPixmap::grabWindow(qt_xrootwin(), (desktopSize.width() - singlesize[0])/2 + desktopSize.left(), (desktopSize.height() - singlesize[1])/2 + desktopSize.top(), singlesize[0], singlesize[1])); + bgDbl = new QPixmap(QPixmap::grabWindow(qt_xrootwin(), (desktopSize.width() - doublesize[0])/2 + desktopSize.left(), (desktopSize.height() - doublesize[1])/2 + desktopSize.top(), doublesize[0], doublesize[1])); + + if(fadeImg != 0) + delete fadeImg; + + if(fadeTime <= 1) { + alpha = 100; + placeWindow(1); + } else { + fadeOut = false; + alpha = 0; + fadeImg = new QImage(getDisplay().convertToImage()); + fadeTimer->start(FADEINTERVAL, FALSE); + } +} + +void ImageDisplay::hide() +{ + if(alpha == 0) + { + if(fadeImg != 0) + { + delete fadeImg; + fadeImg = 0; + } + KatapultDisplay::hide(); + } else { + if(fadeImg != 0) + delete fadeImg; + fadeImg = new QImage(getDisplay().convertToImage()); + fadeOut = TRUE; + if(!fadeTimer->isActive()) + fadeTimer->start(FADEINTERVAL, FALSE); + } +} + +void ImageDisplay::drawText(QPixmap & pixmap, int x, int width, QString text, int hilight) const +{ + int fontSize = maxFontSize; + QFont font(fontFace, fontSize); + QFontMetrics metrics(font); + + while(fontSize > minFontSize && metrics.width(text) > width) { + fontSize--; + font.setPointSize(fontSize); + metrics = QFontMetrics(font); + } + + while(hilight > 1 && metrics.width(text) > width) { + text = text.remove(0, 1); + hilight--; + } + + int useChars = text.length(); + + while(metrics.width(text, useChars) > width) { + useChars--; + } + text = text.left(useChars); + + QString hilighted = text.left(hilight); + QString remaining = text.right(text.length() - hilighted.length()); + + x += (width-metrics.width(text))/2; + + QPainter painter(&pixmap); + painter.setFont(font); + + painter.setPen(colorGroup().color(QColorGroup::Link)); + painter.drawText(x, singlesize[1]-offset[3], hilighted); + painter.setPen(QColor(255, 255, 255)); + painter.drawText(x+metrics.width(hilighted), singlesize[1]-offset[3], remaining); +} + +QPixmap ImageDisplay::getDisplay() +{ + if(status() & S_HasResults) + { + // show best match + QPixmap pixmap(*bgDbl); + QPainter painter(&pixmap); + + painter.drawPixmap(0, 0, *doublebg); + + QFontMetrics metrics = painter.fontMetrics(); + QRect bounds; + QPixmap icon; + + int itemSpace = (doublesize[0]-offset[0]-offset[2]-padding)/2; + + const KatapultItem *_item = item(); + if(_item != 0) + { + icon = _item->icon(iconsize); + painter.drawPixmap(offset[0]+(itemSpace-iconsize)/2, offset[1], icon); + drawText(pixmap, offset[0], itemSpace, _item->text(), selected()); + } + + const KatapultAction *_action = action(); + if(_action != 0) + { + int x = offset[0]+itemSpace+padding+padding; + icon = _action->icon(iconsize); + painter.drawPixmap(x+(itemSpace-iconsize)/2, offset[1], icon); + drawText(pixmap, x, itemSpace, _action->text(), 0); + } + painter.end(); + + if(displaySize != 2) + { + placeWindow(2); + displaySize = 2; + } + + return pixmap; + } else { + // show splash or error + QPixmap pixmap(*bgSngl); + QPainter painter(&pixmap); + + painter.drawPixmap(0, 0, *singlebg); + + QString label; + QPixmap icon; + + if(status() & S_Active) + { + icon = KGlobal::iconLoader()->loadIcon("unknown", KIcon::NoGroup, 128); + if(query().isEmpty()) + label = i18n("No items matched."); + else + label = query(); + } else { + icon = KGlobal::iconLoader()->loadIcon("katapult", KIcon::NoGroup, 128); + if(query().isEmpty()) + label = "Katapult"; + else { + label = query(); + painter.setPen(QColor(16, 48, 254)); + } + } + + painter.drawPixmap(offset[0]+(singlesize[0]-offset[0]-offset[2]-128)/2, offset[1], icon); + + drawText(pixmap, offset[0], singlesize[0]-offset[0]-offset[2], label, 0); + +/* painter.drawText(offset[0], singlesize[1]-offset[3]-30, singlesize[0]-offset[0]-offset[2], 30, + Qt::AlignHCenter | Qt::AlignBottom | Qt::SingleLine, label);*/ + painter.end(); + + if(displaySize != 1) + { + placeWindow(1); + displaySize = 1; + } + + return pixmap; + } +} + +void ImageDisplay::placeWindow(int size) +{ + if(size == 2) { + move((desktopSize.width() - doublesize[0])/2 + desktopSize.left(), (desktopSize.height() - doublesize[1])/2 + desktopSize.top()); + resize(doublesize[0], doublesize[1]); + } else { + move((desktopSize.width() - singlesize[0])/2 + desktopSize.left(), (desktopSize.height() - singlesize[1])/2 + desktopSize.top()); + resize(singlesize[0], singlesize[1]); + } +} + +void ImageDisplay::paintEvent(QPaintEvent *) +{ + if(alpha == 0) + { + if(displaySize == 2) + bitBlt(this, 0, 0, bgDbl); + else + bitBlt(this, 0, 0, bgSngl); + } else if(fadeImg != 0) { + QImage buffer; + if(displaySize == 2) + buffer = bgDbl->convertToImage(); + else + buffer = bgSngl->convertToImage(); + + KImageEffect::blend(*fadeImg, buffer, (float)alpha/100); + bitBlt(this, 0, 0, &buffer); + } else { + QPixmap pixmap = getDisplay(); + bitBlt(this, 0, 0, &pixmap); + } +} + +void ImageDisplay::setSingleBG(QPixmap *singlebg) +{ + this->singlebg = singlebg; +} + +void ImageDisplay::setDoubleBG(QPixmap *doublebg) +{ + this->doublebg = doublebg; +} + +void ImageDisplay::setSingleSize(int width, int height) +{ + singlesize[0] = width; + singlesize[1] = height; +} + +void ImageDisplay::setDoubleSize(int width, int height) +{ + doublesize[0] = width; + doublesize[1] = height; +} + +void ImageDisplay::setMargin(int left, int top, int right, int bottom) +{ + margin[0] = left; + margin[1] = top; + margin[2] = right; + margin[3] = bottom; + updateOffset(); +} + +void ImageDisplay::setPadding(int padding) +{ + this->padding = padding; + updateOffset(); +} + +void ImageDisplay::setIconSize(int iconsize) +{ + this->iconsize = iconsize; +} + +void ImageDisplay::updateOffset() +{ + offset[0] = margin[0] + padding; + offset[1] = margin[1] + padding; + offset[2] = margin[2] + padding; + offset[3] = margin[3] + padding; +} + +void ImageDisplay::readSettings(KConfigBase *config) +{ + fadeTime = config->readUnsignedNumEntry("FadeTime", 250); + updateFadeStep(); +// fadeStep = fadeTime/FADEINTERVAL; + QFont defaultFont = KGlobalSettings::generalFont(); + fontFace = config->readEntry("FontFace", defaultFont.family()); + minFontSize = config->readUnsignedNumEntry("MinFontSize", 7); + maxFontSize = config->readUnsignedNumEntry("MaxFontSize", 14); +} + +void ImageDisplay::writeSettings(KConfigBase *config) +{ + config->writeEntry("FadeTime", fadeTime); + config->writeEntry("FontFace", fontFace); + config->writeEntry("MinFontSize", minFontSize); + config->writeEntry("MaxFontSize", maxFontSize); +} + +QWidget * ImageDisplay::configure() +{ + ImageDisplaySettings *settings = new ImageDisplaySettings(); + + settings->fadeTime->setValue(fadeTime); + connect(settings->fadeTime, SIGNAL(valueChanged(int)), this, SLOT(setFadeOut(int))); + + settings->displayFont->setCurrentFont(fontFace); + connect(settings->displayFont, SIGNAL(textChanged(const QString &)), this, SLOT(setFont(const QString &))); + + settings->minFontSize->setValue(minFontSize); + connect(settings->minFontSize, SIGNAL(valueChanged(int)), this, SLOT(setMinFontSize(int))); + + settings->maxFontSize->setValue(maxFontSize); + connect(settings->maxFontSize, SIGNAL(valueChanged(int)), this, SLOT(setMaxFontSize(int))); + + return settings; +} + +void ImageDisplay::setFont(const QString &font) +{ + fontFace = font; +} + +void ImageDisplay::setMinFontSize(int size) +{ + minFontSize = size; +} + +void ImageDisplay::setMaxFontSize(int size) +{ + maxFontSize = size; +} + +void ImageDisplay::setFadeOut(int fadeTime) +{ + this->fadeTime = fadeTime; + updateFadeStep(); +} + +void ImageDisplay::updateFadeStep() +{ + if(fadeTime == 0) + fadeTime = 1; + fadeStep = FADECONST/fadeTime; + if(fadeStep > 100) + fadeStep = 100; +} |