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kimageviewer: implement format conversion

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Signed-off-by: Ivailo Monev <xakepa10@gmail.com>
This commit is contained in:
Ivailo Monev 2020-08-20 16:44:01 +03:00
parent a3b72a8224
commit b24459422e
4 changed files with 162 additions and 56 deletions
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2
kimageviewer/kimagepart.cpp
View file

@ -43,7 +43,7 @@ K_EXPORT_PLUGIN(KImageViewerPartFactory(KAboutData(
"1.0.0",
ki18n("Simple image viewer for KDE."),
KAboutData::License_GPL_V2,
ki18n("(c) 2014 Ivailo Monev"),
ki18n("(c) 2014-2020 Ivailo Monev"),
KLocalizedString(),
"http://github.com/fluxer/kde-playground",
"xakepa10@gmail.com").

188
kimageviewer/kimageui.ui
View file

@ -14,6 +14,25 @@
<string>Form</string>
</property>
<layout class="QGridLayout" name="gridLayout">
<item row="7" column="0">
<widget class="QComboBox" name="m_view">
<item>
<property name="text">
<string>Ignore</string>
</property>
</item>
<item>
<property name="text">
<string>Keep</string>
</property>
</item>
<item>
<property name="text">
<string>Expanding</string>
</property>
</item>
</widget>
</item>
<item row="2" column="0">
<widget class="QPushButton" name="m_open">
<property name="sizePolicy">
@ -59,6 +78,21 @@
</property>
</widget>
</item>
<item row="10" column="0">
<widget class="QPushButton" name="m_quit">
<property name="enabled">
<bool>true</bool>
</property>
<property name="text">
<string>Quit</string>
</property>
<property name="icon">
<iconset theme="application-exit">
<normaloff/>
</iconset>
</property>
</widget>
</item>
<item row="5" column="0">
<widget class="QPushButton" name="m_rotateleft">
<property name="enabled">
@ -74,7 +108,7 @@
</property>
</widget>
</item>
<item row="8" column="0">
<item row="9" column="0">
<spacer name="verticalSpacer">
<property name="orientation">
<enum>Qt::Vertical</enum>
@ -87,37 +121,7 @@
</property>
</spacer>
</item>
<item row="6" column="0">
<widget class="QPushButton" name="m_rotateright">
<property name="enabled">
<bool>false</bool>
</property>
<property name="text">
<string>Rotate right</string>
</property>
<property name="icon">
<iconset theme="object-rotate-right">
<normaloff/>
</iconset>
</property>
</widget>
</item>
<item row="9" column="0">
<widget class="QPushButton" name="m_quit">
<property name="enabled">
<bool>true</bool>
</property>
<property name="text">
<string>Quit</string>
</property>
<property name="icon">
<iconset theme="application-exit">
<normaloff/>
</iconset>
</property>
</widget>
</item>
<item row="0" column="1" rowspan="10">
<item row="0" column="1" rowspan="11">
<widget class="QLabel" name="m_image">
<property name="sizePolicy">
<sizepolicy hsizetype="Expanding" vsizetype="Preferred">
@ -136,26 +140,7 @@
</property>
</widget>
</item>
<item row="7" column="0">
<widget class="QComboBox" name="m_view">
<item>
<property name="text">
<string>Ignore</string>
</property>
</item>
<item>
<property name="text">
<string>Keep</string>
</property>
</item>
<item>
<property name="text">
<string>Expanding</string>
</property>
</item>
</widget>
</item>
<item row="10" column="0" colspan="2">
<item row="11" column="0" colspan="2">
<widget class="QListWidget" name="m_thumbnail">
<property name="verticalScrollBarPolicy">
<enum>Qt::ScrollBarAlwaysOff</enum>
@ -165,6 +150,105 @@
</property>
</widget>
</item>
<item row="6" column="0">
<widget class="QPushButton" name="m_rotateright">
<property name="enabled">
<bool>false</bool>
</property>
<property name="text">
<string>Rotate right</string>
</property>
<property name="icon">
<iconset theme="object-rotate-right">
<normaloff/>
</iconset>
</property>
</widget>
</item>
<item row="8" column="0">
<widget class="QComboBox" name="m_format">
<item>
<property name="text">
<string>Keep</string>
</property>
</item>
<item>
<property name="text">
<string>Mono</string>
</property>
</item>
<item>
<property name="text">
<string>MonoLSB</string>
</property>
</item>
<item>
<property name="text">
<string>Indexed8</string>
</property>
</item>
<item>
<property name="text">
<string>RGB32</string>
</property>
</item>
<item>
<property name="text">
<string>ARGB32</string>
</property>
</item>
<item>
<property name="text">
<string>ARGB32_Premultiplied</string>
</property>
</item>
<item>
<property name="text">
<string>RGB16</string>
</property>
</item>
<item>
<property name="text">
<string>ARGB8565_Premultiplied</string>
</property>
</item>
<item>
<property name="text">
<string>RGB666</string>
</property>
</item>
<item>
<property name="text">
<string>ARGB6666_Premultiplied</string>
</property>
</item>
<item>
<property name="text">
<string>RGB555</string>
</property>
</item>
<item>
<property name="text">
<string>ARGB8555_Premultiplied</string>
</property>
</item>
<item>
<property name="text">
<string>RGB888</string>
</property>
</item>
<item>
<property name="text">
<string>RGB444</string>
</property>
</item>
<item>
<property name="text">
<string>ARGB4444_Premultiplied</string>
</property>
</item>
</widget>
</item>
</layout>
</widget>
<resources/>

22
kimageviewer/kimagewidget.cpp
View file

@ -44,6 +44,7 @@ KImageWidget::KImageWidget(QWidget *parent)
connect(m_ui->m_rotateleft, SIGNAL(clicked()), this, SLOT(rotateLeft()));
connect(m_ui->m_rotateright, SIGNAL(clicked()), this, SLOT(rotateRight()));
connect(m_ui->m_view, SIGNAL(currentIndexChanged(QString)), this, SLOT(changeMode(QString)));
connect(m_ui->m_format, SIGNAL(currentIndexChanged(QString)), this, SLOT(changeFormat(QString)));
connect(m_ui->m_quit, SIGNAL(clicked()), qApp, SLOT(quit()));
}
@ -106,6 +107,22 @@ bool KImageWidget::changeMode(QString mode)
return false;
}
bool KImageWidget::changeFormat(QString format)
{
qDebug() << format;
if (format == QLatin1String("Keep")) {
m_ui->m_image->setPixmap(resizeIfNeeded(m_original, m_mode));
return true;
} else {
QImage temp = resizeIfNeeded(m_original, m_mode).toImage();
QImage::Format imgformat = QImage::Format(m_ui->m_format->currentIndex());
m_ui->m_image->setPixmap(QPixmap::fromImage(temp.convertToFormat(imgformat)));
qDebug() << imgformat << m_ui->m_image->pixmap()->toImage().format();
return true;
}
return false;
}
bool KImageWidget::setImage(QString path, Qt::AspectRatioMode mode)
{
QPixmap p;
@ -202,8 +219,8 @@ QSize KImageWidget::sizeHint() const
QPixmap KImageWidget::resizeIfNeeded(QPixmap pixmap, Qt::AspectRatioMode mode)
{
if (pixmap.height() > m_ui->m_image->height()) {
return pixmap.scaled(m_ui->m_image->size(), mode);
if (pixmap.height() > m_ui->m_image->height() || pixmap.width() > m_ui->m_image->width()) {
return pixmap.scaled(m_ui->m_image->size() - QSize(3, 3), mode);
}
return pixmap;
}
@ -215,6 +232,7 @@ void KImageWidget::resizeEvent(QResizeEvent *event)
return;
}
m_ui->m_image->setPixmap(resizeIfNeeded(m_original, m_mode));
QWidget::resizeEvent(event);
}
} //namespace KImageViewer

6
kimageviewer/kimagewidget.h
View file

@ -57,11 +57,15 @@ public slots:
bool rotateLeft();
bool rotateRight();
bool changeMode(QString mode);
bool changeFormat(QString mode);
protected:
// reimplementation
void resizeEvent(QResizeEvent *event);
private:
Ui_KImageUI *m_ui;
QPixmap resizeIfNeeded(QPixmap pixmap, Qt::AspectRatioMode mode);
void resizeEvent(QResizeEvent *event);
int m_resizehits;
QPixmap m_original;
Qt::AspectRatioMode m_mode;