QGIS API Documentation 3.37.0-Master (684a802617f)
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qgsmultiedittoolbutton.cpp
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1/***************************************************************************
2 qgsmultiedittoolbutton.cpp
3 --------------------------
4 Date : March 2016
5 Copyright : (C) 2016 Nyall Dawson
6 Email : nyall dot dawson at gmail.com
7 ***************************************************************************
8 * *
9 * This program is free software; you can redistribute it and/or modify *
10 * it under the terms of the GNU General Public License as published by *
11 * the Free Software Foundation; either version 2 of the License, or *
12 * (at your option) any later version. *
13 * *
14 ***************************************************************************/
15
17#include "qgsapplication.h"
18#include "qgsguiutils.h"
19
20#include <QMenu>
22 : QToolButton( parent )
23{
24 setFocusPolicy( Qt::StrongFocus );
25
26 // set default tool button icon properties
27 setStyleSheet( QStringLiteral( "QToolButton{ background: none; border: 1px solid rgba(0, 0, 0, 0%);} QToolButton:focus { border: 1px solid palette(highlight); }" ) );
28
29 const int iconSize = QgsGuiUtils::scaleIconSize( 24 );
30 setIconSize( QSize( iconSize, iconSize ) );
31 // button width is 1.25 * icon size, height 1.1 * icon size. But we round to ensure even pixel sizes for equal margins
32 setFixedSize( 2 * static_cast< int >( 1.25 * iconSize / 2.0 ), 2 * static_cast< int >( iconSize * 1.1 / 2.0 ) );
33
34 setPopupMode( QToolButton::InstantPopup );
35
36 mMenu = new QMenu( this );
37 connect( mMenu, &QMenu::aboutToShow, this, &QgsMultiEditToolButton::aboutToShowMenu );
38 setMenu( mMenu );
39
40 // sets initial appearance
41 updateState();
42}
43
44void QgsMultiEditToolButton::aboutToShowMenu()
45{
46 mMenu->clear();
47
48 switch ( mState )
49 {
50 case Default:
51 {
52 QAction *noAction = mMenu->addAction( tr( "No Changes to Commit" ) );
53 noAction->setEnabled( false );
54 break;
55 }
56 case MixedValues:
57 {
58 const QString title = !mField.name().isEmpty() ? tr( "Set %1 for All Selected Features" ).arg( mField.name() )
59 : tr( "Set field for all selected features" );
60 QAction *setFieldAction = mMenu->addAction( title );
61 connect( setFieldAction, &QAction::triggered, this, &QgsMultiEditToolButton::setFieldTriggered );
62 break;
63 }
64 case Changed:
65 {
66 QAction *resetFieldAction = mMenu->addAction( tr( "Reset to Original Values" ) );
67 connect( resetFieldAction, &QAction::triggered, this, &QgsMultiEditToolButton::resetFieldTriggered );
68 break;
69 }
70 }
71}
72
73void QgsMultiEditToolButton::setFieldTriggered()
74{
75 mIsChanged = true;
76 updateState();
78}
79
80void QgsMultiEditToolButton::resetFieldTriggered()
81{
82 mIsChanged = false;
83 updateState();
85}
86
87void QgsMultiEditToolButton::updateState()
88{
89 //changed state takes priority over mixed values state
90 if ( mIsChanged )
91 mState = Changed;
92 else if ( mIsMixedValues )
93 mState = MixedValues;
94 else
95 mState = Default;
96
97 QIcon icon;
98 QString tooltip;
99 switch ( mState )
100 {
101 case Default:
102 icon = QgsApplication::getThemeIcon( QStringLiteral( "/multieditSameValues.svg" ) );
103 tooltip = tr( "All features in selection have equal value for '%1'" ).arg( mField.name() );
104 break;
105 case MixedValues:
106 icon = QgsApplication::getThemeIcon( QStringLiteral( "/multieditMixedValues.svg" ) );
107 tooltip = tr( "Some features in selection have different values for '%1'" ).arg( mField.name() );
108 break;
109 case Changed:
110 icon = QgsApplication::getThemeIcon( QStringLiteral( "/multieditChangedValues.svg" ) );
111 tooltip = tr( "Values for '%1' have unsaved changes" ).arg( mField.name() );
112 break;
113 }
114
115 setIcon( icon );
116 setToolTip( tooltip );
117}
static QIcon getThemeIcon(const QString &name, const QColor &fillColor=QColor(), const QColor &strokeColor=QColor())
Helper to get a theme icon.
QString name
Definition qgsfield.h:62
@ Changed
Value for widget has changed but changes have not yet been committed.
@ MixedValues
Mixed state, some features have different values for the widget.
@ Default
Default state, all features have same value for widget.
void resetFieldValueTriggered()
Emitted when the "reset to original values" option is selected.
QgsMultiEditToolButton(QWidget *parent=nullptr)
Constructor for QgsMultiEditToolButton.
void setFieldValueTriggered()
Emitted when the "set field value for all features" option is selected.
int scaleIconSize(int standardSize)
Scales an icon size to compensate for display pixel density, making the icon size hi-dpi friendly,...