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Move project list item delegate to new file
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/*************************************************************************** | ||
---------------------------------------------------- | ||
date : 22.5.2019 | ||
copyright : (C) 2019 by Matthias Kuhn | ||
email : matthias@opengis.ch | ||
*************************************************************************** | ||
* * | ||
* 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. * | ||
* * | ||
***************************************************************************/ | ||
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#include "qgsprojectlistitemdelegate.h" | ||
#include "qgis.h" | ||
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#include <QApplication> | ||
#include <QPainter> | ||
#include <QTextDocument> | ||
#include <QAbstractTextDocumentLayout> | ||
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QgsProjectListItemDelegate::QgsProjectListItemDelegate( QObject *parent ) | ||
: QStyledItemDelegate( parent ) | ||
, mRoundedRectSizePixels( static_cast<int>( Qgis::UI_SCALE_FACTOR * QApplication::fontMetrics().height() * 0.5 ) ) | ||
{ | ||
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} | ||
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void QgsProjectListItemDelegate::paint( QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index ) const | ||
{ | ||
painter->save(); | ||
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QTextDocument doc; | ||
QPixmap icon = qvariant_cast<QPixmap>( index.data( Qt::DecorationRole ) ); | ||
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QAbstractTextDocumentLayout::PaintContext ctx; | ||
QStyleOptionViewItem optionV4 = option; | ||
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QColor color = optionV4.palette.color( QPalette::Active, QPalette::Window ); | ||
if ( option.state & QStyle::State_Selected && option.state & QStyle::State_HasFocus ) | ||
{ | ||
color.setAlpha( 40 ); | ||
ctx.palette.setColor( QPalette::Text, optionV4.palette.color( QPalette::Active, QPalette::HighlightedText ) ); | ||
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QStyle *style = QApplication::style(); | ||
style->drawPrimitive( QStyle::PE_PanelItemViewItem, &option, painter, nullptr ); | ||
} | ||
else if ( option.state & QStyle::State_Enabled ) | ||
{ | ||
if ( option.state & QStyle::State_Selected ) | ||
{ | ||
color.setAlpha( 40 ); | ||
} | ||
ctx.palette.setColor( QPalette::Text, optionV4.palette.color( QPalette::Active, QPalette::Text ) ); | ||
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QStyle *style = QApplication::style(); | ||
style->drawPrimitive( QStyle::PE_PanelItemViewItem, &option, painter, nullptr ); | ||
} | ||
else | ||
{ | ||
ctx.palette.setColor( QPalette::Text, optionV4.palette.color( QPalette::Disabled, QPalette::Text ) ); | ||
} | ||
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painter->setRenderHint( QPainter::Antialiasing ); | ||
painter->setPen( QColor( 0, 0, 0, 0 ) ); | ||
painter->setBrush( QBrush( color ) ); | ||
painter->drawRoundedRect( option.rect.left() + 0.625 * mRoundedRectSizePixels, option.rect.top() + 0.625 * mRoundedRectSizePixels, | ||
option.rect.width() - 2 * 0.625 * mRoundedRectSizePixels, option.rect.height() - 2 * 0.625 * mRoundedRectSizePixels, mRoundedRectSizePixels, mRoundedRectSizePixels ); | ||
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int titleSize = static_cast<int>( QApplication::fontMetrics().height() * 1.1 ); | ||
int textSize = static_cast<int>( titleSize * 0.85 ); | ||
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doc.setHtml( QStringLiteral( "<div style='font-size:%1px'><span style='font-size:%2px;font-weight:bold;'>%3%4</span><br>%5<br>%6</div>" ).arg( textSize ).arg( QString::number( titleSize ), | ||
index.data( QgsProjectListItemDelegate::TitleRole ).toString(), | ||
index.data( QgsProjectListItemDelegate::PinRole ).toBool() ? QStringLiteral( "<img src=\"qrc:/images/themes/default/pin.svg\">" ) : QString(), | ||
mShowPath ? index.data( QgsProjectListItemDelegate::NativePathRole ).toString() : QString(), | ||
index.data( QgsProjectListItemDelegate::CrsRole ).toString() ) ); | ||
doc.setTextWidth( option.rect.width() - ( !icon.isNull() ? icon.width() + 4.375 * mRoundedRectSizePixels : 4.375 * mRoundedRectSizePixels ) ); | ||
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if ( !icon.isNull() ) | ||
{ | ||
painter->drawPixmap( option.rect.left() + 1.25 * mRoundedRectSizePixels, option.rect.top() + 1.25 * mRoundedRectSizePixels, icon ); | ||
} | ||
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painter->translate( option.rect.left() + ( !icon.isNull() ? icon.width() + 3.125 * mRoundedRectSizePixels : 1.875 * mRoundedRectSizePixels ), option.rect.top() + 1.875 * mRoundedRectSizePixels ); | ||
ctx.clip = QRect( 0, 0, option.rect.width() - ( !icon.isNull() ? icon.width() - 4.375 * mRoundedRectSizePixels : 3.125 * mRoundedRectSizePixels ), option.rect.height() - 3.125 * mRoundedRectSizePixels ); | ||
doc.documentLayout()->draw( painter, ctx ); | ||
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painter->restore(); | ||
} | ||
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QSize QgsProjectListItemDelegate::sizeHint( const QStyleOptionViewItem &option, const QModelIndex &index ) const | ||
{ | ||
QTextDocument doc; | ||
QPixmap icon = qvariant_cast<QPixmap>( index.data( Qt::DecorationRole ) ); | ||
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int width; | ||
if ( option.rect.width() < 450 ) | ||
{ | ||
width = 450; | ||
} | ||
else | ||
{ | ||
width = option.rect.width(); | ||
} | ||
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int titleSize = QApplication::fontMetrics().height() * 1.1; | ||
int textSize = titleSize * 0.85; | ||
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doc.setHtml( QStringLiteral( "<div style='font-size:%1px;'><span style='font-size:%2px;font-weight:bold;'>%3%4</span><br>%5<br>%6</div>" ).arg( textSize ).arg( titleSize ) | ||
.arg( index.data( QgsProjectListItemDelegate::TitleRole ).toString(), | ||
index.data( QgsProjectListItemDelegate::PinRole ).toBool() ? QStringLiteral( "<img src=\"qrc:/images/themes/default/pin.svg\">" ) : QString(), | ||
index.data( QgsProjectListItemDelegate::NativePathRole ).toString(), | ||
index.data( QgsProjectListItemDelegate::CrsRole ).toString() ) ); | ||
doc.setTextWidth( width - ( !icon.isNull() ? icon.width() + 4.375 * mRoundedRectSizePixels : 4.375 * mRoundedRectSizePixels ) ); | ||
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return QSize( width, std::max( ( double ) doc.size().height() + 1.25 * mRoundedRectSizePixels, static_cast<double>( icon.height() ) ) + 2.5 * mRoundedRectSizePixels ); | ||
} | ||
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bool QgsProjectListItemDelegate::showPath() const | ||
{ | ||
return mShowPath; | ||
} | ||
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void QgsProjectListItemDelegate::setShowPath( bool value ) | ||
{ | ||
mShowPath = value; | ||
} | ||
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QgsProjectPreviewImage::QgsProjectPreviewImage() = default; | ||
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QgsProjectPreviewImage::QgsProjectPreviewImage( const QString &path ) | ||
{ | ||
loadImageFromFile( path ); | ||
} | ||
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QgsProjectPreviewImage::QgsProjectPreviewImage( const QImage &image ) | ||
{ | ||
mImage = image; | ||
} | ||
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void QgsProjectPreviewImage::loadImageFromFile( const QString &path ) | ||
{ | ||
mImage = QImage( path ); | ||
} | ||
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void QgsProjectPreviewImage::setImage( const QImage &image ) | ||
{ | ||
mImage = image; | ||
} | ||
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QPixmap QgsProjectPreviewImage::pixmap() const | ||
{ | ||
//nicely round corners so users don't get paper cuts | ||
QImage previewImage( mImage.size(), QImage::Format_ARGB32 ); | ||
previewImage.fill( Qt::transparent ); | ||
QPainter previewPainter( &previewImage ); | ||
previewPainter.setRenderHint( QPainter::Antialiasing, true ); | ||
previewPainter.setPen( Qt::NoPen ); | ||
previewPainter.setBrush( Qt::black ); | ||
previewPainter.drawRoundedRect( 0, 0, previewImage.width(), previewImage.height(), 8, 8 ); | ||
previewPainter.setCompositionMode( QPainter::CompositionMode_SourceIn ); | ||
previewPainter.drawImage( 0, 0, mImage ); | ||
previewPainter.end(); | ||
return QPixmap::fromImage( previewImage ); | ||
} | ||
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bool QgsProjectPreviewImage::isNull() const | ||
{ | ||
return mImage.isNull(); | ||
} |
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,66 @@ | ||
/*************************************************************************** | ||
---------------------------------------------------- | ||
date : 22.5.2019 | ||
copyright : (C) 2019 by Matthias Kuhn | ||
email : matthias@opengis.ch | ||
*************************************************************************** | ||
* * | ||
* 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. * | ||
* * | ||
***************************************************************************/ | ||
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#ifndef QGSPROJECTLISTITEMDELEGATE_H | ||
#define QGSPROJECTLISTITEMDELEGATE_H | ||
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#include <QStyledItemDelegate> | ||
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class QgsProjectPreviewImage | ||
{ | ||
public: | ||
QgsProjectPreviewImage(); | ||
QgsProjectPreviewImage( const QString &path ); | ||
QgsProjectPreviewImage( const QImage &image ); | ||
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void loadImageFromFile( const QString &path ); | ||
void setImage( const QImage &image ); | ||
QPixmap pixmap() const; | ||
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bool isNull() const; | ||
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private: | ||
QImage mImage; | ||
}; | ||
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class QgsProjectListItemDelegate : public QStyledItemDelegate | ||
{ | ||
Q_OBJECT | ||
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public: | ||
enum Role | ||
{ | ||
TitleRole = Qt::UserRole + 1, | ||
PathRole = Qt::UserRole + 2, | ||
NativePathRole = Qt::UserRole + 3, | ||
CrsRole = Qt::UserRole + 4, | ||
PinRole = Qt::UserRole + 5 | ||
}; | ||
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explicit QgsProjectListItemDelegate( QObject *parent = nullptr ); | ||
void paint( QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index ) const override; | ||
QSize sizeHint( const QStyleOptionViewItem &option, const QModelIndex &index ) const override; | ||
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bool showPath() const; | ||
void setShowPath( bool value ); | ||
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private: | ||
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int mRoundedRectSizePixels = 5; | ||
bool mShowPath = true; | ||
QColor mColor = Qt::white; | ||
}; | ||
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#endif // QGSPROJECTLISTITEMDELEGATE_H |
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