QGIS API Documentation 3.27.0-Master (9c08adf5ef)
qgs25drendererwidget.cpp
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1/***************************************************************************
2 qgs25drendererwidget.cpp - Qgs25DRendererWidget
3
4 ---------------------
5 begin : 14.1.2016
6 copyright : (C) 2016 by mku
7 email : [your-email-here]
8 ***************************************************************************
9 * *
10 * This program is free software; you can redistribute it and/or modify *
11 * it under the terms of the GNU General Public License as published by *
12 * the Free Software Foundation; either version 2 of the License, or *
13 * (at your option) any later version. *
14 * *
15 ***************************************************************************/
17#include "qgs25drenderer.h"
18#include "qgsvectorlayer.h"
21#include "qgssymbol.h"
22
24 : QgsRendererWidget( layer, style )
25
26{
27 if ( !layer )
28 return;
29
30 // the renderer only applies to point vector layers
32 {
33 //setup blank dialog
34 QGridLayout *layout = new QGridLayout( this );
35 QLabel *label = new QLabel( tr( "The 2.5D renderer only can be used with polygon layers. \n"
36 "'%1' is not a polygon layer and cannot be rendered in 2.5D." )
37 .arg( layer->name() ), this );
38 layout->addWidget( label );
39 return;
40 }
41
42 setupUi( this );
43 this->layout()->setContentsMargins( 0, 0, 0, 0 );
44
45 mAngleWidget->setClearValue( 0 );
46 mWallColorButton->setColorDialogTitle( tr( "Select Wall Color" ) );
47 mWallColorButton->setAllowOpacity( true );
48 mWallColorButton->setContext( QStringLiteral( "symbology" ) );
49 mRoofColorButton->setColorDialogTitle( tr( "Select Roof Color" ) );
50 mRoofColorButton->setAllowOpacity( true );
51 mRoofColorButton->setContext( QStringLiteral( "symbology" ) );
52 mShadowColorButton->setColorDialogTitle( tr( "Select Shadow Color" ) );
53 mShadowColorButton->setAllowOpacity( true );
54 mShadowColorButton->setContext( QStringLiteral( "symbology" ) );
55
56 if ( renderer )
57 {
59 }
60
61 mHeightWidget->setLayer( layer );
62
64 const QVariant height = scope->variable( QStringLiteral( "qgis_25d_height" ) );
65 const QVariant angle = scope->variable( QStringLiteral( "qgis_25d_angle" ) );
66 delete scope;
67
68 mHeightWidget->setField( height.isNull() ? QStringLiteral( "10" ) : height.toString() );
69 mAngleWidget->setValue( angle.isNull() ? 70 : angle.toDouble() );
70 mAngleWidget->setClearValue( 70 );
71 mWallColorButton->setColor( mRenderer->wallColor() );
72 mRoofColorButton->setColor( mRenderer->roofColor() );
73 mShadowColorButton->setColor( mRenderer->shadowColor() );
74 mShadowEnabledWidget->setChecked( mRenderer->shadowEnabled() );
75 mShadowSizeWidget->setValue( mRenderer->shadowSpread() );
76 mShadowSizeWidget->setClearValue( 4 );
77 mWallExpositionShading->setChecked( mRenderer->wallShadingEnabled() );
78
79 connect( mAngleWidget, static_cast < void ( QSpinBox::* )( int ) > ( &QSpinBox::valueChanged ), this, &Qgs25DRendererWidget::updateRenderer );
80 connect( mHeightWidget, static_cast < void ( QgsFieldExpressionWidget::* )( const QString & ) > ( &QgsFieldExpressionWidget::fieldChanged ), this, &Qgs25DRendererWidget::updateRenderer );
81 connect( mWallColorButton, &QgsColorButton::colorChanged, this, &Qgs25DRendererWidget::updateRenderer );
82 connect( mRoofColorButton, &QgsColorButton::colorChanged, this, &Qgs25DRendererWidget::updateRenderer );
83 connect( mShadowColorButton, &QgsColorButton::colorChanged, this, &Qgs25DRendererWidget::updateRenderer );
84 connect( mShadowEnabledWidget, &QGroupBox::toggled, this, &Qgs25DRendererWidget::updateRenderer );
85 connect( mShadowSizeWidget, static_cast < void ( QDoubleSpinBox::* )( double ) > ( &QDoubleSpinBox::valueChanged ), this, &Qgs25DRendererWidget::updateRenderer );
86 connect( mWallExpositionShading, &QAbstractButton::toggled, this, &Qgs25DRendererWidget::updateRenderer );
87}
88
90
92{
93 return mRenderer.get();
94}
95
96void Qgs25DRendererWidget::updateRenderer()
97{
98 mRenderer->setRoofColor( mRoofColorButton->color() );
99 mRenderer->setWallColor( mWallColorButton->color() );
100 mRenderer->setShadowColor( mShadowColorButton->color() );
101 mRenderer->setShadowEnabled( mShadowEnabledWidget->isChecked() );
102 mRenderer->setShadowSpread( mShadowSizeWidget->value() );
103 mRenderer->setWallShadingEnabled( mWallExpositionShading->isChecked() );
104 emit widgetChanged();
105}
106
107void Qgs25DRendererWidget::apply()
108{
109 if ( mHeightWidget )
110 {
111 QgsExpressionContextUtils::setLayerVariable( mLayer, QStringLiteral( "qgis_25d_height" ), mHeightWidget->currentText() );
112 QgsExpressionContextUtils::setLayerVariable( mLayer, QStringLiteral( "qgis_25d_angle" ), mAngleWidget->value() );
113
115 }
116}
117
119{
120 return new Qgs25DRendererWidget( layer, style, renderer );
121}
~Qgs25DRendererWidget() override
static QgsRendererWidget * create(QgsVectorLayer *layer, QgsStyle *style, QgsFeatureRenderer *renderer)
Static creation method.
QgsFeatureRenderer * renderer() override
Returns pointer to the renderer (no transfer of ownership)
Qgs25DRendererWidget(QgsVectorLayer *layer, QgsStyle *style, QgsFeatureRenderer *renderer)
Constructor.
static Qgs25DRenderer * convertFromRenderer(QgsFeatureRenderer *renderer)
Try to convert from an existing renderer.
void colorChanged(const QColor &color)
Emitted whenever a new color is set for the button.
Single scope for storing variables and functions for use within a QgsExpressionContext.
QVariant variable(const QString &name) const
Retrieves a variable's value from the scope.
static void setLayerVariable(QgsMapLayer *layer, const QString &name, const QVariant &value)
Sets a layer context variable.
static QgsExpressionContextScope * layerScope(const QgsMapLayer *layer)
Creates a new scope which contains variables and functions relating to a QgsMapLayer.
The QgsFieldExpressionWidget class reates a widget to choose fields and edit expressions It contains ...
void fieldChanged(const QString &fieldName)
Emitted when the currently selected field changes.
QString name
Definition: qgsmaplayer.h:76
void widgetChanged()
Emitted when the widget state changes.
Base class for renderer settings widgets.
void layerVariablesChanged()
Emitted when expression context variables on the associated vector layers have been changed.
QgsVectorLayer * mLayer
Represents a vector layer which manages a vector based data sets.
Q_INVOKABLE QgsWkbTypes::GeometryType geometryType() const
Returns point, line or polygon.
double ANALYSIS_EXPORT angle(QgsPoint *p1, QgsPoint *p2, QgsPoint *p3, QgsPoint *p4)
Calculates the angle between two segments (in 2 dimension, z-values are ignored)
Definition: MathUtils.cpp:786