QGIS API Documentation 3.27.0-Master (9c08adf5ef)
qgscombinedstylemodel.cpp
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1/***************************************************************************
2 qgscombinedstylemodel.cpp
3 ---------------
4 begin : May 2022
5 copyright : (C) 2022 by Nyall Dawson
6 email : nyall dot dawson at gmail dot 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 "qgsstyle.h"
18#include "qgsstylemodel.h"
19#include "qgssingleitemmodel.h"
20#include "qgsapplication.h"
21
22#if QT_VERSION >= QT_VERSION_CHECK(5, 13, 0)
23
24
26 : QConcatenateTablesProxyModel( parent )
27{
28
29}
30
31QVariant QgsCombinedStyleModel::headerData( int section, Qt::Orientation orientation, int role ) const
32{
33 return QgsStyleModel::headerDataStatic( section, orientation, role );
34}
35
37{
38 connect( style, &QgsStyle::destroyed, this, [this, style]()
39 {
40 if ( QgsSingleItemModel *model = mTitleModels.value( style ) )
41 {
42 removeSourceModel( model );
43 mTitleModels.remove( style );
44 delete model;
45 }
46
47 if ( QgsStyleModel *model = mOwnedStyleModels.value( style ) )
48 {
49 removeSourceModel( model );
50 mOwnedStyleModels.remove( style );
51 delete model;
52 }
53 mStyles.removeAll( style );
54 } );
55
56 mStyles.append( style );
57
58 QgsSingleItemModel *titleModel = new QgsSingleItemModel( this,
59 {
60 {
61 { Qt::DisplayRole, style->name() },
62 { Qt::ToolTipRole, style->name() },
65 { QgsStyleModel::StyleName, style->name() },
66 }, {
69 { QgsStyleModel::StyleName, style->name() }
70 }
71 } );
72 addSourceModel( titleModel );
73 mTitleModels.insert( style, titleModel );
74
75 QgsStyleModel *styleModel = new QgsStyleModel( style );
76
77 for ( QSize size : std::as_const( mAdditionalSizes ) )
78 {
79 styleModel->addDesiredIconSize( size );
80 }
81
82 addSourceModel( styleModel );
83 mOwnedStyleModels.insert( style, styleModel );
84}
85
87{
88 if ( QgsSingleItemModel *model = mTitleModels.value( style ) )
89 {
90 removeSourceModel( model );
91 mTitleModels.remove( style );
92 delete model;
93 }
94
95 if ( QgsStyleModel *model = mOwnedStyleModels.value( style ) )
96 {
97 removeSourceModel( model );
98 mOwnedStyleModels.remove( style );
99 delete model;
100 }
101 mStyles.removeAll( style );
102}
103
105{
106 QgsStyle *defaultStyle = QgsStyle::defaultStyle();
108 if ( !defaultStyle || !styleModel )
109 return;
110
111 mStyles.append( defaultStyle );
112
113 QgsSingleItemModel *titleModel = new QgsSingleItemModel( this,
114 {
115 {
116 { Qt::DisplayRole, defaultStyle->name() },
117 { Qt::ToolTipRole, defaultStyle->name() },
119 { QgsStyleModel::StyleFileName, defaultStyle->fileName() },
120 { QgsStyleModel::StyleName, defaultStyle->name() },
121 }, {
123 { QgsStyleModel::StyleFileName, defaultStyle->fileName() },
124 { QgsStyleModel::StyleName, defaultStyle->name() }
125 }
126 } );
127
128 addSourceModel( titleModel );
129 mTitleModels.insert( defaultStyle, titleModel );
130
131 for ( QSize size : std::as_const( mAdditionalSizes ) )
132 {
133 styleModel->addDesiredIconSize( size );
134 }
135
136 addSourceModel( styleModel );
137}
138
139QList< QgsStyle * > QgsCombinedStyleModel::styles() const
140{
141 return mStyles;
142}
143
145{
146 if ( !mAdditionalSizes.contains( size ) )
147 mAdditionalSizes.append( size );
148
149 for ( auto it = mOwnedStyleModels.constBegin(); it != mOwnedStyleModels.constEnd(); ++it )
150 {
151 it.value()->addDesiredIconSize( size );
152 }
153
154 if ( mStyles.contains( QgsStyle::defaultStyle() ) )
155 {
157 }
158}
159
160#endif
static QgsStyleModel * defaultStyleModel()
Returns a shared QgsStyleModel containing the default style library (see QgsStyle::defaultStyle()).
QList< QgsStyle * > styles() const
Returns a list of all styles shown in the model.
QVariant headerData(int section, Qt::Orientation orientation, int role=Qt::DisplayRole) const override
QgsCombinedStyleModel(QObject *parent=nullptr)
Constructor for QgsCombinedStyleModel with the specified parent object.
void removeStyle(QgsStyle *style)
Removes a style from the model.
void addStyle(QgsStyle *style)
Adds a style to the model.
void addDefaultStyle()
Adds the default style (QgsStyle::defaultStyle()) to the model.
void addDesiredIconSize(QSize size)
Adds an additional icon size to generate for Qt::DecorationRole data.
A QgsSingleItemModel subclass which contains a single read-only item.
A QAbstractItemModel subclass for showing symbol and color ramp entities contained within a QgsStyle ...
@ StyleName
Name of associated QgsStyle (QgsStyle::name()) (since QGIS 3.26)
@ StyleFileName
File name of associated QgsStyle (QgsStyle::fileName()) (since QGIS 3.26)
@ IsTitleRole
True if the index corresponds to a title item (since QGIS 3.26)
void addDesiredIconSize(QSize size)
Adds an additional icon size to generate for Qt::DecorationRole data.
static QgsStyle * defaultStyle()
Returns default application-wide style.
Definition: qgsstyle.cpp:145
QString fileName() const
Returns the current file name of the style database.
Definition: qgsstyle.h:888
QString name() const
Returns the name of the style.
Definition: qgsstyle.cpp:106