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qgswelcomepageitemsmodel.cpp
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qgswelcomepageitemsmodel.cpp
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/***************************************************************************
----------------------------------------------------
date : 17.8.2015
copyright : (C) 2015 by Matthias Kuhn
email : matthias (at) 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. *
* *
***************************************************************************/
#include "qgswelcomepageitemsmodel.h"
#include "qgscoordinatereferencesystem.h"
#include "qgsmessagelog.h"
#include <QApplication>
#include <QAbstractTextDocumentLayout>
#include <QPixmap>
#include <QFile>
#include <QFileInfo>
#include <QPainter>
#include <QTextDocument>
#include <QDir>
QgsWelcomePageItemDelegate::QgsWelcomePageItemDelegate( QObject *parent )
: QStyledItemDelegate( parent )
{
}
void QgsWelcomePageItemDelegate::paint( QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index ) const
{
painter->save();
QTextDocument doc;
QPixmap icon = qvariant_cast<QPixmap>( index.data( Qt::DecorationRole ) );
QAbstractTextDocumentLayout::PaintContext ctx;
QStyleOptionViewItem optionV4 = option;
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 ) );
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 ) );
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 ) );
}
painter->setRenderHint( QPainter::Antialiasing );
painter->setPen( QColor( 0, 0, 0, 0 ) );
painter->setBrush( QBrush( color ) );
painter->drawRoundedRect( option.rect.left() + 5, option.rect.top() + 5, option.rect.width() - 10, option.rect.height() - 10, 8, 8 );
int titleSize = QApplication::fontMetrics().height() * 1.1;
int textSize = titleSize * 0.85;
doc.setHtml( QStringLiteral( "<div style='font-size:%1px;'><span style='font-size:%2px;font-weight:bold;'>%3</span><br>%4<br>%5</div>" ).arg( textSize ).arg( titleSize )
.arg( index.data( QgsWelcomePageItemsModel::TitleRole ).toString(),
index.data( QgsWelcomePageItemsModel::PathRole ).toString(),
index.data( QgsWelcomePageItemsModel::CrsRole ).toString() ) );
doc.setTextWidth( option.rect.width() - ( !icon.isNull() ? icon.width() + 35 : 35 ) );
if ( !icon.isNull() )
{
painter->drawPixmap( option.rect.left() + 10, option.rect.top() + 10, icon );
}
painter->translate( option.rect.left() + ( !icon.isNull() ? icon.width() + 25 : 15 ), option.rect.top() + 15 );
ctx.clip = QRect( 0, 0, option.rect.width() - ( !icon.isNull() ? icon.width() - 35 : 25 ), option.rect.height() - 25 );
doc.documentLayout()->draw( painter, ctx );
painter->restore();
}
QSize QgsWelcomePageItemDelegate::sizeHint( const QStyleOptionViewItem &option, const QModelIndex &index ) const
{
QTextDocument doc;
QPixmap icon = qvariant_cast<QPixmap>( index.data( Qt::DecorationRole ) );
int width;
if ( option.rect.width() < 450 )
{
width = 450;
}
else
{
width = option.rect.width();
}
int titleSize = QApplication::fontMetrics().height() * 1.1;
int textSize = titleSize * 0.85;
doc.setHtml( QStringLiteral( "<div style='font-size:%1px;'><span style='font-size:%2px;font-weight:bold;'>%3</span><br>%4<br>%5</div>" ).arg( textSize ).arg( titleSize )
.arg( index.data( QgsWelcomePageItemsModel::TitleRole ).toString(),
index.data( QgsWelcomePageItemsModel::PathRole ).toString(),
index.data( QgsWelcomePageItemsModel::CrsRole ).toString() ) );
doc.setTextWidth( width - ( !icon.isNull() ? icon.width() + 35 : 35 ) );
return QSize( width, std::max( ( double ) doc.size().height() + 10, ( double )icon.height() ) + 20 );
}
QgsWelcomePageItemsModel::QgsWelcomePageItemsModel( QObject *parent )
: QAbstractListModel( parent )
{
}
void QgsWelcomePageItemsModel::setRecentProjects( const QList<RecentProjectData> &recentProjects )
{
beginResetModel();
mRecentProjects = recentProjects;
endResetModel();
}
int QgsWelcomePageItemsModel::rowCount( const QModelIndex &parent ) const
{
Q_UNUSED( parent )
return mRecentProjects.size();
}
QVariant QgsWelcomePageItemsModel::data( const QModelIndex &index, int role ) const
{
switch ( role )
{
case Qt::DisplayRole:
case TitleRole:
return mRecentProjects.at( index.row() ).title != mRecentProjects.at( index.row() ).path ? mRecentProjects.at( index.row() ).title : QFileInfo( mRecentProjects.at( index.row() ).path ).completeBaseName();
case PathRole:
return QDir::toNativeSeparators( mRecentProjects.at( index.row() ).path );
case CrsRole:
if ( mRecentProjects.at( index.row() ).crs != QLatin1String( "" ) )
{
QgsCoordinateReferenceSystem crs = QgsCoordinateReferenceSystem::fromOgcWmsCrs( mRecentProjects.at( index.row() ).crs );
return QStringLiteral( "%1 (%2)" ).arg( mRecentProjects.at( index.row() ).crs, crs.description() );
}
else
{
return QString();
}
case Qt::DecorationRole:
{
QString filename( mRecentProjects.at( index.row() ).previewImagePath );
if ( filename.isEmpty() )
return QVariant();
QImage thumbnail( filename );
if ( thumbnail.isNull() )
return QVariant();
//nicely round corners so users don't get paper cuts
QImage previewImage( thumbnail.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, thumbnail );
previewPainter.end();
return QPixmap::fromImage( previewImage );
}
case Qt::ToolTipRole:
return mRecentProjects.at( index.row() ).path;
default:
return QVariant();
}
}
Qt::ItemFlags QgsWelcomePageItemsModel::flags( const QModelIndex &index ) const
{
Qt::ItemFlags flags = QAbstractItemModel::flags( index );
const RecentProjectData &projectData = mRecentProjects.at( index.row() );
if ( !QFile::exists( ( projectData.path ) ) )
flags &= ~Qt::ItemIsEnabled;
return flags;
}