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4166a3ea62
By flipping string literals to QStringLiteral/QLatin1String see https://woboq.com/blog/qstringliteral.html
108 lines
3.6 KiB
C++
108 lines
3.6 KiB
C++
/***************************************************************************
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qgsstatusbarscalewidget.cpp
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begin : May 2016
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copyright : (C) 2016 Denis Rouzaud
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email : denis.rouzaud@gmail.com
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***************************************************************************/
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/***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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#include <QHBoxLayout>
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#include <QLabel>
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#include <QLineEdit>
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#include <QToolButton>
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#include <QValidator>
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#include "qgsstatusbarscalewidget.h"
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#include "qgsmapcanvas.h"
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#include "qgsscalecombobox.h"
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QgsStatusBarScaleWidget::QgsStatusBarScaleWidget( QgsMapCanvas *canvas, QWidget *parent )
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: QWidget( parent )
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, mMapCanvas( canvas )
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{
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// add a label to show current scale
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mLabel = new QLabel();
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mLabel->setObjectName( QStringLiteral( "mScaleLabel" ) );
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mLabel->setMinimumWidth( 10 );
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//mScaleLabel->setMaximumHeight( 20 );
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mLabel->setMargin( 3 );
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mLabel->setAlignment( Qt::AlignCenter );
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mLabel->setFrameStyle( QFrame::NoFrame );
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mLabel->setText( tr( "Scale" ) );
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mLabel->setToolTip( tr( "Current map scale" ) );
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mScale = new QgsScaleComboBox();
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mScale->setObjectName( QStringLiteral( "mScaleEdit" ) );
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// seems setFont() change font only for popup not for line edit,
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// so we need to set font for it separately
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mScale->setMinimumWidth( 10 );
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mScale->setContentsMargins( 0, 0, 0, 0 );
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mScale->setWhatsThis( tr( "Displays the current map scale" ) );
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mScale->setToolTip( tr( "Current map scale (formatted as x:y)" ) );
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mLockButton = new QToolButton();
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mLockButton->setIcon( QIcon( QgsApplication::getThemeIcon( "/lockedGray.svg" ) ) );
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mLockButton->setToolTip( tr( "Lock the scale to use magnifier to zoom in or out." ) );
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mLockButton->setCheckable( true );
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mLockButton->setChecked( false );
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mLockButton->setAutoRaise( true );
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// layout
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mLayout = new QHBoxLayout( this );
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mLayout->addWidget( mLabel );
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mLayout->addWidget( mScale );
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mLayout->addWidget( mLockButton );
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mLayout->setContentsMargins( 0, 0, 0, 0 );
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mLayout->setAlignment( Qt::AlignRight );
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mLayout->setSpacing( 0 );
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setLayout( mLayout );
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connect( mScale, SIGNAL( scaleChanged( double ) ), this, SLOT( userScale() ) );
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connect( mLockButton, SIGNAL( toggled( bool ) ), this, SIGNAL( scaleLockChanged( bool ) ) );
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connect( mLockButton, SIGNAL( toggled( bool ) ), mScale, SLOT( setDisabled( bool ) ) );
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}
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QgsStatusBarScaleWidget::~QgsStatusBarScaleWidget()
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{
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}
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void QgsStatusBarScaleWidget::setScale( double scale )
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{
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mScale->blockSignals( true );
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mScale->setScale( scale );
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mScale->blockSignals( false );
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}
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bool QgsStatusBarScaleWidget::isLocked() const
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{
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return mLockButton->isChecked();
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}
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void QgsStatusBarScaleWidget::setFont( const QFont &font )
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{
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mLabel->setFont( font );
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mScale->lineEdit()->setFont( font );
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}
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void QgsStatusBarScaleWidget::updateScales( const QStringList &scales )
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{
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mScale->updateScales( scales );
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}
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void QgsStatusBarScaleWidget::userScale() const
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{
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// Why has MapCanvas the scale inverted?
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mMapCanvas->zoomScale( 1.0 / mScale->scale() );
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}
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