QGIS API Documentation 3.34.0-Prizren (ffbdd678812)
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qgscompoundcolorwidget.cpp
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1/***************************************************************************
2 qgscompoundcolorwidget.cpp
3 --------------------------
4 begin : April 2016
5 copyright : (C) 2016 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
16#include "qgscompoundcolorwidget.h"
17#include "qgscolorscheme.h"
18#include "qgscolorschemeregistry.h"
19#include "qgssymbollayerutils.h"
20#include "qgsapplication.h"
21#include "qgssettings.h"
22#include "qgsscreenhelper.h"
23#include "qgsguiutils.h"
24
25#include <QHeaderView>
26#include <QPushButton>
27#include <QMenu>
28#include <QToolButton>
29#include <QFileDialog>
30#include <QMessageBox>
31#include <QMouseEvent>
32#include <QScreen>
33#include <QInputDialog>
34#include <QVBoxLayout>
35#include <QRegularExpression>
36
37QgsCompoundColorWidget::QgsCompoundColorWidget( QWidget *parent, const QColor &color, Layout widgetLayout )
38 : QgsPanelWidget( parent )
39{
40 setupUi( this );
41
42 mScreenHelper = new QgsScreenHelper( this );
43
44 connect( mHueRadio, &QRadioButton::toggled, this, &QgsCompoundColorWidget::mHueRadio_toggled );
45 connect( mSaturationRadio, &QRadioButton::toggled, this, &QgsCompoundColorWidget::mSaturationRadio_toggled );
46 connect( mValueRadio, &QRadioButton::toggled, this, &QgsCompoundColorWidget::mValueRadio_toggled );
47 connect( mRedRadio, &QRadioButton::toggled, this, &QgsCompoundColorWidget::mRedRadio_toggled );
48 connect( mGreenRadio, &QRadioButton::toggled, this, &QgsCompoundColorWidget::mGreenRadio_toggled );
49 connect( mBlueRadio, &QRadioButton::toggled, this, &QgsCompoundColorWidget::mBlueRadio_toggled );
50 connect( mAddColorToSchemeButton, &QPushButton::clicked, this, &QgsCompoundColorWidget::mAddColorToSchemeButton_clicked );
51 connect( mAddCustomColorButton, &QPushButton::clicked, this, &QgsCompoundColorWidget::mAddCustomColorButton_clicked );
52 connect( mSampleButton, &QPushButton::clicked, this, &QgsCompoundColorWidget::mSampleButton_clicked );
53 connect( mTabWidget, &QTabWidget::currentChanged, this, &QgsCompoundColorWidget::mTabWidget_currentChanged );
54 connect( mActionShowInButtons, &QAction::toggled, this, &QgsCompoundColorWidget::mActionShowInButtons_toggled );
55
56 if ( widgetLayout == LayoutVertical )
57 {
58 // shuffle stuff around
59 QVBoxLayout *newLayout = new QVBoxLayout();
60 newLayout->setContentsMargins( 0, 0, 0, 0 );
61 newLayout->addWidget( mTabWidget );
62 newLayout->addWidget( mSlidersWidget );
63 newLayout->addWidget( mPreviewWidget );
64 newLayout->addWidget( mSwatchesWidget );
65 delete layout();
66 setLayout( newLayout );
67 }
68
69 const QgsSettings settings;
70
71 mSchemeList->header()->hide();
72 mSchemeList->setColumnWidth( 0, static_cast< int >( Qgis::UI_SCALE_FACTOR * fontMetrics().horizontalAdvance( 'X' ) * 6 ) );
73
74 //get schemes with ShowInColorDialog set
75 refreshSchemeComboBox();
76 const QList<QgsColorScheme *> schemeList = QgsApplication::colorSchemeRegistry()->schemes( QgsColorScheme::ShowInColorDialog );
77
78 //choose a reasonable starting scheme
79 int activeScheme = settings.value( QStringLiteral( "Windows/ColorDialog/activeScheme" ), 0 ).toInt();
80 activeScheme = activeScheme >= mSchemeComboBox->count() ? 0 : activeScheme;
81
82 mSchemeList->setScheme( schemeList.at( activeScheme ) );
83
84 mSchemeComboBox->setCurrentIndex( activeScheme );
85 updateActionsForCurrentScheme();
86
87 //listen out for selection changes in list, so we can enable/disable the copy colors option
88 connect( mSchemeList->selectionModel(), &QItemSelectionModel::selectionChanged, this, &QgsCompoundColorWidget::listSelectionChanged );
89 //copy action defaults to disabled
90 mActionCopyColors->setEnabled( false );
91
92 connect( mActionCopyColors, &QAction::triggered, mSchemeList, &QgsColorSchemeList::copyColors );
93 connect( mActionPasteColors, &QAction::triggered, mSchemeList, &QgsColorSchemeList::pasteColors );
94 connect( mActionExportColors, &QAction::triggered, mSchemeList, &QgsColorSchemeList::showExportColorsDialog );
95 connect( mActionImportColors, &QAction::triggered, mSchemeList, &QgsColorSchemeList::showImportColorsDialog );
96 connect( mActionImportPalette, &QAction::triggered, this, &QgsCompoundColorWidget::importPalette );
97 connect( mActionRemovePalette, &QAction::triggered, this, &QgsCompoundColorWidget::removePalette );
98 connect( mActionNewPalette, &QAction::triggered, this, &QgsCompoundColorWidget::newPalette );
99 connect( mRemoveColorsFromSchemeButton, &QAbstractButton::clicked, mSchemeList, &QgsColorSchemeList::removeSelection );
100
101 QMenu *schemeMenu = new QMenu( mSchemeToolButton );
102 schemeMenu->addAction( mActionCopyColors );
103 schemeMenu->addAction( mActionPasteColors );
104 schemeMenu->addSeparator();
105 schemeMenu->addAction( mActionImportColors );
106 schemeMenu->addAction( mActionExportColors );
107 schemeMenu->addSeparator();
108 schemeMenu->addAction( mActionNewPalette );
109 schemeMenu->addAction( mActionImportPalette );
110 schemeMenu->addAction( mActionRemovePalette );
111 schemeMenu->addAction( mActionShowInButtons );
112 mSchemeToolButton->setMenu( schemeMenu );
113
114 connect( mSchemeComboBox, static_cast<void ( QComboBox::* )( int )>( &QComboBox::currentIndexChanged ), this, &QgsCompoundColorWidget::schemeIndexChanged );
115 connect( mSchemeList, &QgsColorSchemeList::colorSelected, this, &QgsCompoundColorWidget::setColor );
116
117 mOldColorLabel->hide();
118
119 mVerticalRamp->setOrientation( QgsColorRampWidget::Vertical );
120 mVerticalRamp->setInteriorMargin( 2 );
121 mVerticalRamp->setShowFrame( true );
122
123 mRedSlider->setComponent( QgsColorWidget::Red );
124 mGreenSlider->setComponent( QgsColorWidget::Green );
125 mBlueSlider->setComponent( QgsColorWidget::Blue );
126 mHueSlider->setComponent( QgsColorWidget::Hue );
127 mSaturationSlider->setComponent( QgsColorWidget::Saturation );
128 mValueSlider->setComponent( QgsColorWidget::Value );
129 mAlphaSlider->setComponent( QgsColorWidget::Alpha );
130
131 mSwatchButton1->setShowMenu( false );
132 mSwatchButton1->setBehavior( QgsColorButton::SignalOnly );
133 mSwatchButton2->setShowMenu( false );
134 mSwatchButton2->setBehavior( QgsColorButton::SignalOnly );
135 mSwatchButton3->setShowMenu( false );
136 mSwatchButton3->setBehavior( QgsColorButton::SignalOnly );
137 mSwatchButton4->setShowMenu( false );
138 mSwatchButton4->setBehavior( QgsColorButton::SignalOnly );
139 mSwatchButton5->setShowMenu( false );
140 mSwatchButton5->setBehavior( QgsColorButton::SignalOnly );
141 mSwatchButton6->setShowMenu( false );
142 mSwatchButton6->setBehavior( QgsColorButton::SignalOnly );
143 mSwatchButton7->setShowMenu( false );
144 mSwatchButton7->setBehavior( QgsColorButton::SignalOnly );
145 mSwatchButton8->setShowMenu( false );
146 mSwatchButton8->setBehavior( QgsColorButton::SignalOnly );
147 mSwatchButton9->setShowMenu( false );
148 mSwatchButton9->setBehavior( QgsColorButton::SignalOnly );
149 mSwatchButton10->setShowMenu( false );
150 mSwatchButton10->setBehavior( QgsColorButton::SignalOnly );
151 mSwatchButton11->setShowMenu( false );
152 mSwatchButton11->setBehavior( QgsColorButton::SignalOnly );
153 mSwatchButton12->setShowMenu( false );
154 mSwatchButton12->setBehavior( QgsColorButton::SignalOnly );
155 mSwatchButton13->setShowMenu( false );
156 mSwatchButton13->setBehavior( QgsColorButton::SignalOnly );
157 mSwatchButton14->setShowMenu( false );
158 mSwatchButton14->setBehavior( QgsColorButton::SignalOnly );
159 mSwatchButton15->setShowMenu( false );
160 mSwatchButton15->setBehavior( QgsColorButton::SignalOnly );
161 mSwatchButton16->setShowMenu( false );
162 mSwatchButton16->setBehavior( QgsColorButton::SignalOnly );
163 //restore custom colors
164 mSwatchButton1->setColor( settings.value( QStringLiteral( "Windows/ColorDialog/customColor1" ), QVariant( QColor() ) ).value<QColor>() );
165 mSwatchButton2->setColor( settings.value( QStringLiteral( "Windows/ColorDialog/customColor2" ), QVariant( QColor() ) ).value<QColor>() );
166 mSwatchButton3->setColor( settings.value( QStringLiteral( "Windows/ColorDialog/customColor3" ), QVariant( QColor() ) ).value<QColor>() );
167 mSwatchButton4->setColor( settings.value( QStringLiteral( "Windows/ColorDialog/customColor4" ), QVariant( QColor() ) ).value<QColor>() );
168 mSwatchButton5->setColor( settings.value( QStringLiteral( "Windows/ColorDialog/customColor5" ), QVariant( QColor() ) ).value<QColor>() );
169 mSwatchButton6->setColor( settings.value( QStringLiteral( "Windows/ColorDialog/customColor6" ), QVariant( QColor() ) ).value<QColor>() );
170 mSwatchButton7->setColor( settings.value( QStringLiteral( "Windows/ColorDialog/customColor7" ), QVariant( QColor() ) ).value<QColor>() );
171 mSwatchButton8->setColor( settings.value( QStringLiteral( "Windows/ColorDialog/customColor8" ), QVariant( QColor() ) ).value<QColor>() );
172 mSwatchButton9->setColor( settings.value( QStringLiteral( "Windows/ColorDialog/customColor9" ), QVariant( QColor() ) ).value<QColor>() );
173 mSwatchButton10->setColor( settings.value( QStringLiteral( "Windows/ColorDialog/customColor10" ), QVariant( QColor() ) ).value<QColor>() );
174 mSwatchButton11->setColor( settings.value( QStringLiteral( "Windows/ColorDialog/customColor11" ), QVariant( QColor() ) ).value<QColor>() );
175 mSwatchButton12->setColor( settings.value( QStringLiteral( "Windows/ColorDialog/customColor12" ), QVariant( QColor() ) ).value<QColor>() );
176 mSwatchButton13->setColor( settings.value( QStringLiteral( "Windows/ColorDialog/customColor13" ), QVariant( QColor() ) ).value<QColor>() );
177 mSwatchButton14->setColor( settings.value( QStringLiteral( "Windows/ColorDialog/customColor14" ), QVariant( QColor() ) ).value<QColor>() );
178 mSwatchButton15->setColor( settings.value( QStringLiteral( "Windows/ColorDialog/customColor15" ), QVariant( QColor() ) ).value<QColor>() );
179 mSwatchButton16->setColor( settings.value( QStringLiteral( "Windows/ColorDialog/customColor16" ), QVariant( QColor() ) ).value<QColor>() );
180
181 //restore sample radius
182 mSpinBoxRadius->setValue( settings.value( QStringLiteral( "Windows/ColorDialog/sampleRadius" ), 1 ).toInt() );
183 mSamplePreview->setColor( QColor() );
184
185 // hidpi friendly sizes
186 const int swatchWidth = static_cast< int >( std::round( std::max( Qgis::UI_SCALE_FACTOR * 1.9 * mSwatchButton1->fontMetrics().height(), 38.0 ) ) );
187 const int swatchHeight = static_cast< int >( std::round( std::max( Qgis::UI_SCALE_FACTOR * 1.5 * mSwatchButton1->fontMetrics().height(), 30.0 ) ) );
188 mSwatchButton1->setMinimumSize( swatchWidth, swatchHeight );
189 mSwatchButton1->setMaximumSize( swatchWidth, swatchHeight );
190 mSwatchButton2->setMinimumSize( swatchWidth, swatchHeight );
191 mSwatchButton2->setMaximumSize( swatchWidth, swatchHeight );
192 mSwatchButton3->setMinimumSize( swatchWidth, swatchHeight );
193 mSwatchButton3->setMaximumSize( swatchWidth, swatchHeight );
194 mSwatchButton4->setMinimumSize( swatchWidth, swatchHeight );
195 mSwatchButton4->setMaximumSize( swatchWidth, swatchHeight );
196 mSwatchButton5->setMinimumSize( swatchWidth, swatchHeight );
197 mSwatchButton5->setMaximumSize( swatchWidth, swatchHeight );
198 mSwatchButton6->setMinimumSize( swatchWidth, swatchHeight );
199 mSwatchButton6->setMaximumSize( swatchWidth, swatchHeight );
200 mSwatchButton7->setMinimumSize( swatchWidth, swatchHeight );
201 mSwatchButton7->setMaximumSize( swatchWidth, swatchHeight );
202 mSwatchButton8->setMinimumSize( swatchWidth, swatchHeight );
203 mSwatchButton8->setMaximumSize( swatchWidth, swatchHeight );
204 mSwatchButton9->setMinimumSize( swatchWidth, swatchHeight );
205 mSwatchButton9->setMaximumSize( swatchWidth, swatchHeight );
206 mSwatchButton10->setMinimumSize( swatchWidth, swatchHeight );
207 mSwatchButton10->setMaximumSize( swatchWidth, swatchHeight );
208 mSwatchButton11->setMinimumSize( swatchWidth, swatchHeight );
209 mSwatchButton11->setMaximumSize( swatchWidth, swatchHeight );
210 mSwatchButton12->setMinimumSize( swatchWidth, swatchHeight );
211 mSwatchButton12->setMaximumSize( swatchWidth, swatchHeight );
212 mSwatchButton13->setMinimumSize( swatchWidth, swatchHeight );
213 mSwatchButton13->setMaximumSize( swatchWidth, swatchHeight );
214 mSwatchButton14->setMinimumSize( swatchWidth, swatchHeight );
215 mSwatchButton14->setMaximumSize( swatchWidth, swatchHeight );
216 mSwatchButton15->setMinimumSize( swatchWidth, swatchHeight );
217 mSwatchButton15->setMaximumSize( swatchWidth, swatchHeight );
218 mSwatchButton16->setMinimumSize( swatchWidth, swatchHeight );
219 mSwatchButton16->setMaximumSize( swatchWidth, swatchHeight );
220 const int previewHeight = static_cast< int >( std::round( std::max( Qgis::UI_SCALE_FACTOR * 2.0 * mSwatchButton1->fontMetrics().height(), 40.0 ) ) );
221 mColorPreview->setMinimumSize( 0, previewHeight );
222 mPreviewWidget->setMaximumHeight( previewHeight * 2 );
223 const int swatchAddSize = static_cast< int >( std::round( std::max( Qgis::UI_SCALE_FACTOR * 1.4 * mSwatchButton1->fontMetrics().height(), 28.0 ) ) );
224 mAddCustomColorButton->setMinimumWidth( swatchAddSize );
225 mAddCustomColorButton->setMaximumWidth( swatchAddSize );
226
227 const int iconSize = QgsGuiUtils::scaleIconSize( 16 );
228 mTabWidget->setIconSize( QSize( iconSize, iconSize ) );
229
230 if ( color.isValid() )
231 {
232 setColor( color );
233 }
234
235 //restore active component radio button
236 const int activeRadio = settings.value( QStringLiteral( "Windows/ColorDialog/activeComponent" ), 2 ).toInt();
237 switch ( activeRadio )
238 {
239 case 0:
240 mHueRadio->setChecked( true );
241 break;
242 case 1:
243 mSaturationRadio->setChecked( true );
244 break;
245 case 2:
246 mValueRadio->setChecked( true );
247 break;
248 case 3:
249 mRedRadio->setChecked( true );
250 break;
251 case 4:
252 mGreenRadio->setChecked( true );
253 break;
254 case 5:
255 mBlueRadio->setChecked( true );
256 break;
257 }
258 const int currentTab = settings.value( QStringLiteral( "Windows/ColorDialog/activeTab" ), 0 ).toInt();
259 mTabWidget->setCurrentIndex( currentTab );
260
261 //setup connections
262 connect( mColorBox, &QgsColorWidget::colorChanged, this, &QgsCompoundColorWidget::setColor );
263 connect( mColorWheel, &QgsColorWidget::colorChanged, this, &QgsCompoundColorWidget::setColor );
264 connect( mColorText, &QgsColorWidget::colorChanged, this, &QgsCompoundColorWidget::setColor );
265 connect( mVerticalRamp, &QgsColorWidget::colorChanged, this, &QgsCompoundColorWidget::setColor );
266 connect( mRedSlider, &QgsColorWidget::colorChanged, this, &QgsCompoundColorWidget::setColor );
267 connect( mGreenSlider, &QgsColorWidget::colorChanged, this, &QgsCompoundColorWidget::setColor );
268 connect( mBlueSlider, &QgsColorWidget::colorChanged, this, &QgsCompoundColorWidget::setColor );
269 connect( mHueSlider, &QgsColorWidget::colorChanged, this, &QgsCompoundColorWidget::setColor );
270 connect( mValueSlider, &QgsColorWidget::colorChanged, this, &QgsCompoundColorWidget::setColor );
271 connect( mSaturationSlider, &QgsColorWidget::colorChanged, this, &QgsCompoundColorWidget::setColor );
272 connect( mAlphaSlider, &QgsColorWidget::colorChanged, this, &QgsCompoundColorWidget::setColor );
273 connect( mColorPreview, &QgsColorWidget::colorChanged, this, &QgsCompoundColorWidget::setColor );
274 connect( mSwatchButton1, &QgsColorButton::colorClicked, this, &QgsCompoundColorWidget::setColor );
275 connect( mSwatchButton2, &QgsColorButton::colorClicked, this, &QgsCompoundColorWidget::setColor );
276 connect( mSwatchButton3, &QgsColorButton::colorClicked, this, &QgsCompoundColorWidget::setColor );
277 connect( mSwatchButton4, &QgsColorButton::colorClicked, this, &QgsCompoundColorWidget::setColor );
278 connect( mSwatchButton5, &QgsColorButton::colorClicked, this, &QgsCompoundColorWidget::setColor );
279 connect( mSwatchButton6, &QgsColorButton::colorClicked, this, &QgsCompoundColorWidget::setColor );
280 connect( mSwatchButton7, &QgsColorButton::colorClicked, this, &QgsCompoundColorWidget::setColor );
281 connect( mSwatchButton8, &QgsColorButton::colorClicked, this, &QgsCompoundColorWidget::setColor );
282 connect( mSwatchButton9, &QgsColorButton::colorClicked, this, &QgsCompoundColorWidget::setColor );
283 connect( mSwatchButton10, &QgsColorButton::colorClicked, this, &QgsCompoundColorWidget::setColor );
284 connect( mSwatchButton11, &QgsColorButton::colorClicked, this, &QgsCompoundColorWidget::setColor );
285 connect( mSwatchButton12, &QgsColorButton::colorClicked, this, &QgsCompoundColorWidget::setColor );
286 connect( mSwatchButton13, &QgsColorButton::colorClicked, this, &QgsCompoundColorWidget::setColor );
287 connect( mSwatchButton14, &QgsColorButton::colorClicked, this, &QgsCompoundColorWidget::setColor );
288 connect( mSwatchButton15, &QgsColorButton::colorClicked, this, &QgsCompoundColorWidget::setColor );
289 connect( mSwatchButton16, &QgsColorButton::colorClicked, this, &QgsCompoundColorWidget::setColor );
290}
291
299
300QColor QgsCompoundColorWidget::color() const
301{
302 //all widgets should have the same color, so it shouldn't matter
303 //which we fetch it from
304 return mColorPreview->color();
305}
306
307void QgsCompoundColorWidget::setAllowOpacity( const bool allowOpacity )
308{
309 mAllowAlpha = allowOpacity;
310 mAlphaLabel->setVisible( allowOpacity );
311 mAlphaSlider->setVisible( allowOpacity );
312 mColorText->setAllowOpacity( allowOpacity );
313 if ( !allowOpacity )
314 {
315 mAlphaLayout->setContentsMargins( 0, 0, 0, 0 );
316 mAlphaLayout->setSpacing( 0 );
317 }
318}
319
320void QgsCompoundColorWidget::refreshSchemeComboBox()
321{
322 mSchemeComboBox->blockSignals( true );
323 mSchemeComboBox->clear();
324 const QList<QgsColorScheme *> schemeList = QgsApplication::colorSchemeRegistry()->schemes( QgsColorScheme::ShowInColorDialog );
325 QList<QgsColorScheme *>::const_iterator schemeIt = schemeList.constBegin();
326 for ( ; schemeIt != schemeList.constEnd(); ++schemeIt )
327 {
328 mSchemeComboBox->addItem( ( *schemeIt )->schemeName() );
329 }
330 mSchemeComboBox->blockSignals( false );
331}
332
333
334QgsUserColorScheme *QgsCompoundColorWidget::importUserPaletteFromFile( QWidget *parent )
335{
336 QgsSettings s;
337 const QString lastDir = s.value( QStringLiteral( "/UI/lastGplPaletteDir" ), QDir::homePath() ).toString();
338 const QString filePath = QFileDialog::getOpenFileName( parent, tr( "Select Palette File" ), lastDir, QStringLiteral( "GPL (*.gpl);;All files (*.*)" ) );
339 if ( parent )
340 parent->activateWindow();
341 if ( filePath.isEmpty() )
342 {
343 return nullptr;
344 }
345
346 //check if file exists
347 const QFileInfo fileInfo( filePath );
348 if ( !fileInfo.exists() || !fileInfo.isReadable() )
349 {
350 QMessageBox::critical( nullptr, tr( "Import Color Palette" ), tr( "Error, file does not exist or is not readable." ) );
351 return nullptr;
352 }
353
354 s.setValue( QStringLiteral( "/UI/lastGplPaletteDir" ), fileInfo.absolutePath() );
355 QFile file( filePath );
356
357 QgsNamedColorList importedColors;
358 bool ok = false;
359 QString paletteName;
360 importedColors = QgsSymbolLayerUtils::importColorsFromGpl( file, ok, paletteName );
361 if ( !ok )
362 {
363 QMessageBox::critical( nullptr, tr( "Import Color Palette" ), tr( "Palette file is not readable." ) );
364 return nullptr;
365 }
366
367 if ( importedColors.length() == 0 )
368 {
369 //no imported colors
370 QMessageBox::critical( nullptr, tr( "Import Color Palette" ), tr( "No colors found in palette file." ) );
371 return nullptr;
372 }
373
374 //TODO - handle conflicting file names, name for new palette
375 QgsUserColorScheme *importedScheme = new QgsUserColorScheme( fileInfo.fileName() );
376 importedScheme->setName( paletteName );
377 importedScheme->setColors( importedColors );
378
379 QgsApplication::colorSchemeRegistry()->addColorScheme( importedScheme );
380 return importedScheme;
381}
382
383void QgsCompoundColorWidget::importPalette()
384{
385 if ( importUserPaletteFromFile( this ) )
386 {
387 //refresh combobox
388 refreshSchemeComboBox();
389 mSchemeComboBox->setCurrentIndex( mSchemeComboBox->count() - 1 );
390 }
391}
392
393
394bool QgsCompoundColorWidget::removeUserPalette( QgsUserColorScheme *scheme, QWidget *parent )
395{
396 if ( QMessageBox::question( parent, tr( "Remove Color Palette" ),
397 tr( "Are you sure you want to remove %1?" ).arg( scheme->schemeName() ),
398 QMessageBox::Yes | QMessageBox::No, QMessageBox::No ) != QMessageBox::Yes )
399 {
400 //user canceled
401 return false;
402 }
403
404 //remove palette and associated gpl file
405 if ( !scheme->erase() )
406 {
407 //something went wrong
408 return false;
409 }
410
411 //remove scheme from registry
412 QgsApplication::colorSchemeRegistry()->removeColorScheme( scheme );
413 return true;
414}
415
416void QgsCompoundColorWidget::removePalette()
417{
418 //get current scheme
419 const QList<QgsColorScheme *> schemeList = QgsApplication::colorSchemeRegistry()->schemes( QgsColorScheme::ShowInColorDialog );
420 int prevIndex = mSchemeComboBox->currentIndex();
421 if ( prevIndex >= schemeList.length() )
422 {
423 return;
424 }
425
426 //make user scheme is a user removable scheme
427 QgsUserColorScheme *userScheme = dynamic_cast<QgsUserColorScheme *>( schemeList.at( prevIndex ) );
428 if ( !userScheme )
429 {
430 return;
431 }
432
433 if ( removeUserPalette( userScheme, this ) )
434 {
435 refreshSchemeComboBox();
436 prevIndex = std::max( std::min( prevIndex, mSchemeComboBox->count() - 1 ), 0 );
437 mSchemeComboBox->setCurrentIndex( prevIndex );
438 }
439}
440
441QgsUserColorScheme *QgsCompoundColorWidget::createNewUserPalette( QWidget *parent )
442{
443 bool ok = false;
444 const QString name = QInputDialog::getText( parent, tr( "Create New Palette" ), tr( "Enter a name for the new palette:" ),
445 QLineEdit::Normal, tr( "New palette" ), &ok );
446
447 if ( !ok || name.isEmpty() )
448 {
449 //user canceled
450 return nullptr;
451 }
452
453 //generate file name for new palette
454 const QDir palettePath( gplFilePath() );
455 const thread_local QRegularExpression badChars( "[,^@={}\\[\\]~!?:&*\"|#%<>$\"'();`' /\\\\]" );
456 QString filename = name.simplified().toLower().replace( badChars, QStringLiteral( "_" ) );
457 if ( filename.isEmpty() )
458 {
459 filename = tr( "new_palette" );
460 }
461 QFileInfo destFileInfo( palettePath.filePath( filename + ".gpl" ) );
462 int fileNumber = 1;
463 while ( destFileInfo.exists() )
464 {
465 //try to generate a unique file name
466 destFileInfo = QFileInfo( palettePath.filePath( filename + QStringLiteral( "%1.gpl" ).arg( fileNumber ) ) );
467 fileNumber++;
468 }
469
470 QgsUserColorScheme *newScheme = new QgsUserColorScheme( destFileInfo.fileName() );
471 newScheme->setName( name );
472
473 QgsApplication::colorSchemeRegistry()->addColorScheme( newScheme );
474 return newScheme;
475}
476
477void QgsCompoundColorWidget::newPalette()
478{
479 if ( createNewUserPalette( this ) )
480 {
481 //refresh combobox and set new scheme as active
482 refreshSchemeComboBox();
483 mSchemeComboBox->setCurrentIndex( mSchemeComboBox->count() - 1 );
484 }
485}
486
487QString QgsCompoundColorWidget::gplFilePath()
488{
489 QString palettesDir = QgsApplication::qgisSettingsDirPath() + "palettes";
490
491 const QDir localDir;
492 if ( !localDir.mkpath( palettesDir ) )
493 {
494 return QString();
495 }
496
497 return palettesDir;
498}
499
500void QgsCompoundColorWidget::schemeIndexChanged( int index )
501{
502 //save changes to scheme
503 if ( mSchemeList->isDirty() )
504 {
505 mSchemeList->saveColorsToScheme();
506 }
507
508 //get schemes with ShowInColorDialog set
509 const QList<QgsColorScheme *> schemeList = QgsApplication::colorSchemeRegistry()->schemes( QgsColorScheme::ShowInColorDialog );
510 if ( index >= schemeList.length() )
511 {
512 return;
513 }
514
515 QgsColorScheme *scheme = schemeList.at( index );
516 mSchemeList->setScheme( scheme );
517
518 updateActionsForCurrentScheme();
519
520 //copy action defaults to disabled
521 mActionCopyColors->setEnabled( false );
522}
523
524void QgsCompoundColorWidget::listSelectionChanged( const QItemSelection &selected, const QItemSelection &deselected )
525{
526 Q_UNUSED( deselected )
527 mActionCopyColors->setEnabled( selected.length() > 0 );
528}
529
530void QgsCompoundColorWidget::mAddCustomColorButton_clicked()
531{
532 switch ( mLastCustomColorIndex )
533 {
534 case 0:
535 mSwatchButton1->setColor( mColorPreview->color() );
536 break;
537 case 1:
538 mSwatchButton2->setColor( mColorPreview->color() );
539 break;
540 case 2:
541 mSwatchButton3->setColor( mColorPreview->color() );
542 break;
543 case 3:
544 mSwatchButton4->setColor( mColorPreview->color() );
545 break;
546 case 4:
547 mSwatchButton5->setColor( mColorPreview->color() );
548 break;
549 case 5:
550 mSwatchButton6->setColor( mColorPreview->color() );
551 break;
552 case 6:
553 mSwatchButton7->setColor( mColorPreview->color() );
554 break;
555 case 7:
556 mSwatchButton8->setColor( mColorPreview->color() );
557 break;
558 case 8:
559 mSwatchButton9->setColor( mColorPreview->color() );
560 break;
561 case 9:
562 mSwatchButton10->setColor( mColorPreview->color() );
563 break;
564 case 10:
565 mSwatchButton11->setColor( mColorPreview->color() );
566 break;
567 case 11:
568 mSwatchButton12->setColor( mColorPreview->color() );
569 break;
570 case 12:
571 mSwatchButton13->setColor( mColorPreview->color() );
572 break;
573 case 13:
574 mSwatchButton14->setColor( mColorPreview->color() );
575 break;
576 case 14:
577 mSwatchButton15->setColor( mColorPreview->color() );
578 break;
579 case 15:
580 mSwatchButton16->setColor( mColorPreview->color() );
581 break;
582 }
583 mLastCustomColorIndex++;
584 if ( mLastCustomColorIndex >= 16 )
585 {
586 mLastCustomColorIndex = 0;
587 }
588}
589
590void QgsCompoundColorWidget::mSampleButton_clicked()
591{
592 //activate picker color
593 setCursor( QgsApplication::getThemeCursor( QgsApplication::Cursor::Sampler ) );
594 grabMouse();
595 grabKeyboard();
596 mPickingColor = true;
597 setMouseTracking( true );
598}
599
600void QgsCompoundColorWidget::mTabWidget_currentChanged( int index )
601{
602 //disable radio buttons if not using the first tab, as they have no meaning for other tabs
603 const bool enabled = index == 0;
604 mRedRadio->setEnabled( enabled );
605 mBlueRadio->setEnabled( enabled );
606 mGreenRadio->setEnabled( enabled );
607 mHueRadio->setEnabled( enabled );
608 mSaturationRadio->setEnabled( enabled );
609 mValueRadio->setEnabled( enabled );
610}
611
612void QgsCompoundColorWidget::mActionShowInButtons_toggled( bool state )
613{
614 QgsUserColorScheme *scheme = dynamic_cast< QgsUserColorScheme * >( mSchemeList->scheme() );
615 if ( scheme )
616 {
617 scheme->setShowSchemeInMenu( state );
618 }
619}
620
621QScreen *QgsCompoundColorWidget::findScreenAt( QPoint pos )
622{
623 const QList< QScreen * > screens = QGuiApplication::screens();
624 for ( QScreen *screen : screens )
625 {
626 if ( screen->geometry().contains( pos ) )
627 {
628 return screen;
629 }
630 }
631 return nullptr;
632}
633
634void QgsCompoundColorWidget::saveSettings()
635{
636 //save changes to scheme
637 if ( mSchemeList->isDirty() )
638 {
639 mSchemeList->saveColorsToScheme();
640 }
641
642 QgsSettings settings;
643
644 //record active component
645 int activeRadio = 0;
646 if ( mHueRadio->isChecked() )
647 activeRadio = 0;
648 if ( mSaturationRadio->isChecked() )
649 activeRadio = 1;
650 if ( mValueRadio->isChecked() )
651 activeRadio = 2;
652 if ( mRedRadio->isChecked() )
653 activeRadio = 3;
654 if ( mGreenRadio->isChecked() )
655 activeRadio = 4;
656 if ( mBlueRadio->isChecked() )
657 activeRadio = 5;
658 settings.setValue( QStringLiteral( "Windows/ColorDialog/activeComponent" ), activeRadio );
659
660 //record current scheme
661 settings.setValue( QStringLiteral( "Windows/ColorDialog/activeScheme" ), mSchemeComboBox->currentIndex() );
662
663 //record current tab
664 settings.setValue( QStringLiteral( "Windows/ColorDialog/activeTab" ), mTabWidget->currentIndex() );
665
666 //record custom colors
667 settings.setValue( QStringLiteral( "Windows/ColorDialog/customColor1" ), QVariant( mSwatchButton1->color() ) );
668 settings.setValue( QStringLiteral( "Windows/ColorDialog/customColor2" ), QVariant( mSwatchButton2->color() ) );
669 settings.setValue( QStringLiteral( "Windows/ColorDialog/customColor3" ), QVariant( mSwatchButton3->color() ) );
670 settings.setValue( QStringLiteral( "Windows/ColorDialog/customColor4" ), QVariant( mSwatchButton4->color() ) );
671 settings.setValue( QStringLiteral( "Windows/ColorDialog/customColor5" ), QVariant( mSwatchButton5->color() ) );
672 settings.setValue( QStringLiteral( "Windows/ColorDialog/customColor6" ), QVariant( mSwatchButton6->color() ) );
673 settings.setValue( QStringLiteral( "Windows/ColorDialog/customColor7" ), QVariant( mSwatchButton7->color() ) );
674 settings.setValue( QStringLiteral( "Windows/ColorDialog/customColor8" ), QVariant( mSwatchButton8->color() ) );
675 settings.setValue( QStringLiteral( "Windows/ColorDialog/customColor9" ), QVariant( mSwatchButton9->color() ) );
676 settings.setValue( QStringLiteral( "Windows/ColorDialog/customColor10" ), QVariant( mSwatchButton10->color() ) );
677 settings.setValue( QStringLiteral( "Windows/ColorDialog/customColor11" ), QVariant( mSwatchButton11->color() ) );
678 settings.setValue( QStringLiteral( "Windows/ColorDialog/customColor12" ), QVariant( mSwatchButton12->color() ) );
679 settings.setValue( QStringLiteral( "Windows/ColorDialog/customColor13" ), QVariant( mSwatchButton13->color() ) );
680 settings.setValue( QStringLiteral( "Windows/ColorDialog/customColor14" ), QVariant( mSwatchButton14->color() ) );
681 settings.setValue( QStringLiteral( "Windows/ColorDialog/customColor15" ), QVariant( mSwatchButton15->color() ) );
682 settings.setValue( QStringLiteral( "Windows/ColorDialog/customColor16" ), QVariant( mSwatchButton16->color() ) );
683
684 //sample radius
685 settings.setValue( QStringLiteral( "Windows/ColorDialog/sampleRadius" ), mSpinBoxRadius->value() );
686}
687
688void QgsCompoundColorWidget::stopPicking( QPoint eventPos, const bool takeSample )
689{
690 //release mouse and keyboard, and reset cursor
691 releaseMouse();
692 releaseKeyboard();
693 unsetCursor();
694 setMouseTracking( false );
695 mPickingColor = false;
696
697 if ( !takeSample )
698 {
699 //not sampling color, nothing more to do
700 return;
701 }
702
703 //grab snapshot of pixel under mouse cursor
704 const QColor snappedColor = sampleColor( eventPos );
705 mSamplePreview->setColor( snappedColor );
706 mColorPreview->setColor( snappedColor, true );
707}
708
709void QgsCompoundColorWidget::setColor( const QColor &color )
710{
711 if ( !color.isValid() )
712 {
713 return;
714 }
715
716 QColor fixedColor = QColor( color );
717 if ( !mAllowAlpha )
718 {
719 //opacity disallowed, so don't permit transparent colors
720 fixedColor.setAlpha( 255 );
721 }
722 const QList<QgsColorWidget *> colorWidgets = this->findChildren<QgsColorWidget *>();
723 const auto constColorWidgets = colorWidgets;
724 for ( QgsColorWidget *widget : constColorWidgets )
725 {
726 if ( widget == mSamplePreview )
727 {
728 continue;
729 }
730 widget->blockSignals( true );
731 widget->setColor( fixedColor );
732 widget->blockSignals( false );
733 }
734 emit currentColorChanged( fixedColor );
735}
736
737void QgsCompoundColorWidget::setPreviousColor( const QColor &color )
738{
739 mOldColorLabel->setVisible( color.isValid() );
740 mColorPreview->setColor2( color );
741}
742
743void QgsCompoundColorWidget::hideEvent( QHideEvent *e )
744{
745 saveSettings();
746 QWidget::hideEvent( e );
747}
748
749void QgsCompoundColorWidget::mousePressEvent( QMouseEvent *e )
750{
751 if ( mPickingColor )
752 {
753 //don't show dialog if in color picker mode
754 e->accept();
755 return;
756 }
757
758 QWidget::mousePressEvent( e );
759}
760
761QColor QgsCompoundColorWidget::averageColor( const QImage &image ) const
762{
763 QRgb tmpRgb;
764 int colorCount = 0;
765 int sumRed = 0;
766 int sumBlue = 0;
767 int sumGreen = 0;
768 //scan through image and sum rgb components
769 for ( int heightIndex = 0; heightIndex < image.height(); ++heightIndex )
770 {
771 const QRgb *scanLine = reinterpret_cast< const QRgb * >( image.constScanLine( heightIndex ) );
772 for ( int widthIndex = 0; widthIndex < image.width(); ++widthIndex )
773 {
774 tmpRgb = scanLine[widthIndex];
775 sumRed += qRed( tmpRgb );
776 sumBlue += qBlue( tmpRgb );
777 sumGreen += qGreen( tmpRgb );
778 colorCount++;
779 }
780 }
781 //calculate average components as floats
782 const double avgRed = static_cast<double>( sumRed ) / ( 255.0 * colorCount );
783 const double avgGreen = static_cast<double>( sumGreen ) / ( 255.0 * colorCount );
784 const double avgBlue = static_cast<double>( sumBlue ) / ( 255.0 * colorCount );
785
786 //create a new color representing the average
787 return QColor::fromRgbF( avgRed, avgGreen, avgBlue );
788}
789
790QColor QgsCompoundColorWidget::sampleColor( QPoint point ) const
791{
792 const int sampleRadius = mSpinBoxRadius->value() - 1;
793 QScreen *screen = findScreenAt( point );
794 if ( ! screen )
795 {
796 return QColor();
797 }
798
799 const int x = point.x() - screen->geometry().left();
800 const int y = point.y() - screen->geometry().top();
801 const QPixmap snappedPixmap = screen->grabWindow( 0,
802 x - sampleRadius,
803 y - sampleRadius,
804 1 + sampleRadius * 2,
805 1 + sampleRadius * 2 );
806 const QImage snappedImage = snappedPixmap.toImage();
807 //scan all pixels and take average color
808 return averageColor( snappedImage );
809}
810
811void QgsCompoundColorWidget::mouseMoveEvent( QMouseEvent *e )
812{
813 if ( mPickingColor )
814 {
815 //currently in color picker mode
816 //sample color under cursor update preview widget to give feedback to user
817 const QColor hoverColor = sampleColor( e->globalPos() );
818 mSamplePreview->setColor( hoverColor );
819
820 e->accept();
821 return;
822 }
823
824 QWidget::mouseMoveEvent( e );
825}
826
827void QgsCompoundColorWidget::mouseReleaseEvent( QMouseEvent *e )
828{
829 if ( mPickingColor )
830 {
831 //end color picking operation by sampling the color under cursor
832 stopPicking( e->globalPos() );
833 e->accept();
834 return;
835 }
836
837 QWidget::mouseReleaseEvent( e );
838}
839
840void QgsCompoundColorWidget::keyPressEvent( QKeyEvent *e )
841{
842 if ( !mPickingColor )
843 {
844 //if not picking a color, use default tool button behavior
845 QgsPanelWidget::keyPressEvent( e );
846 return;
847 }
848
849 //cancel picking, sampling the color if space was pressed
850 stopPicking( QCursor::pos(), e->key() == Qt::Key_Space );
851}
852
853void QgsCompoundColorWidget::mHueRadio_toggled( bool checked )
854{
855 if ( checked )
856 {
857 mColorBox->setComponent( QgsColorWidget::Hue );
858 mVerticalRamp->setComponent( QgsColorWidget::Hue );
859 }
860}
861
862void QgsCompoundColorWidget::mSaturationRadio_toggled( bool checked )
863{
864 if ( checked )
865 {
866 mColorBox->setComponent( QgsColorWidget::Saturation );
867 mVerticalRamp->setComponent( QgsColorWidget::Saturation );
868 }
869}
870
871void QgsCompoundColorWidget::mValueRadio_toggled( bool checked )
872{
873 if ( checked )
874 {
875 mColorBox->setComponent( QgsColorWidget::Value );
876 mVerticalRamp->setComponent( QgsColorWidget::Value );
877 }
878}
879
880void QgsCompoundColorWidget::mRedRadio_toggled( bool checked )
881{
882 if ( checked )
883 {
884 mColorBox->setComponent( QgsColorWidget::Red );
885 mVerticalRamp->setComponent( QgsColorWidget::Red );
886 }
887}
888
889void QgsCompoundColorWidget::mGreenRadio_toggled( bool checked )
890{
891 if ( checked )
892 {
893 mColorBox->setComponent( QgsColorWidget::Green );
894 mVerticalRamp->setComponent( QgsColorWidget::Green );
895 }
896}
897
898void QgsCompoundColorWidget::mBlueRadio_toggled( bool checked )
899{
900 if ( checked )
901 {
902 mColorBox->setComponent( QgsColorWidget::Blue );
903 mVerticalRamp->setComponent( QgsColorWidget::Blue );
904 }
905}
906
907void QgsCompoundColorWidget::mAddColorToSchemeButton_clicked()
908{
909 mSchemeList->addColor( mColorPreview->color(), QgsSymbolLayerUtils::colorToName( mColorPreview->color() ) );
910}
911
912void QgsCompoundColorWidget::updateActionsForCurrentScheme()
913{
914 QgsColorScheme *scheme = mSchemeList->scheme();
915
916 mActionImportColors->setEnabled( scheme->isEditable() );
917 mActionPasteColors->setEnabled( scheme->isEditable() );
918 mAddColorToSchemeButton->setEnabled( scheme->isEditable() );
919 mRemoveColorsFromSchemeButton->setEnabled( scheme->isEditable() );
920
921 QgsUserColorScheme *userScheme = dynamic_cast<QgsUserColorScheme *>( scheme );
922 mActionRemovePalette->setEnabled( static_cast< bool >( userScheme ) );
923 if ( userScheme )
924 {
925 mActionShowInButtons->setEnabled( true );
926 whileBlocking( mActionShowInButtons )->setChecked( userScheme->flags() & QgsColorScheme::ShowInColorButtonMenu );
927 }
928 else
929 {
930 whileBlocking( mActionShowInButtons )->setChecked( false );
931 mActionShowInButtons->setEnabled( false );
932 }
933}
Qgis::UI_SCALE_FACTOR
static const double UI_SCALE_FACTOR
UI scaling factor.
Definition qgis.h:4086
QgsApplication::getThemeCursor
static QCursor getThemeCursor(Cursor cursor)
Helper to get a theme cursor.
Definition qgsapplication.cpp:818
QgsApplication::colorSchemeRegistry
static QgsColorSchemeRegistry * colorSchemeRegistry()
Returns the application's color scheme registry, used for managing color schemes.
Definition qgsapplication.cpp:2407
QgsApplication::qgisSettingsDirPath
static QString qgisSettingsDirPath()
Returns the path to the settings directory in user's home dir.
Definition qgsapplication.cpp:1159
QgsApplication::Sampler
@ Sampler
Color/Value picker.
Definition qgsapplication.h:411
QgsColorButton::SignalOnly
@ SignalOnly
Emit colorClicked signal only, no dialog.
Definition qgscolorbutton.h:67
QgsColorButton::colorClicked
void colorClicked(const QColor &color)
Emitted when the button is clicked, if the button's behavior is set to SignalOnly.
QgsColorRampWidget::Vertical
@ Vertical
Vertical ramp.
Definition qgscolorwidgets.h:496
QgsColorSchemeList::pasteColors
void pasteColors()
Pastes colors from clipboard to the list.
Definition qgscolorschemelist.cpp:100
QgsColorSchemeList::removeSelection
void removeSelection()
Removes any selected colors from the list.
Definition qgscolorschemelist.cpp:75
QgsColorSchemeList::copyColors
void copyColors()
Copies colors from the list to the clipboard.
Definition qgscolorschemelist.cpp:118
QgsColorSchemeList::showExportColorsDialog
void showExportColorsDialog()
Displays a file picker dialog allowing users to export colors from the list into a file.
Definition qgscolorschemelist.cpp:170
QgsColorSchemeList::colorSelected
void colorSelected(const QColor &color)
Emitted when a color is selected from the list.
QgsColorSchemeList::showImportColorsDialog
void showImportColorsDialog()
Displays a file picker dialog allowing users to import colors into the list from a file.
Definition qgscolorschemelist.cpp:141
QgsColorSchemeRegistry::addColorScheme
void addColorScheme(QgsColorScheme *scheme)
Adds a color scheme to the registry.
Definition qgscolorschemeregistry.cpp:83
QgsColorSchemeRegistry::schemes
QList< QgsColorScheme * > schemes() const
Returns all color schemes in the registry.
Definition qgscolorschemeregistry.cpp:88
QgsColorSchemeRegistry::removeColorScheme
bool removeColorScheme(QgsColorScheme *scheme)
Removes all matching color schemes from the registry.
Definition qgscolorschemeregistry.cpp:169
QgsColorScheme
Abstract base class for color schemes.
Definition qgscolorscheme.h:47
QgsColorScheme::ShowInColorButtonMenu
@ ShowInColorButtonMenu
Show scheme in color button drop-down menu.
Definition qgscolorscheme.h:74
QgsColorScheme::ShowInColorDialog
@ ShowInColorDialog
Show scheme in color picker dialog.
Definition qgscolorscheme.h:73
QgsColorScheme::isEditable
virtual bool isEditable() const
Returns whether the color scheme is editable.
Definition qgscolorscheme.h:117
QgsColorWidget
A base class for interactive color widgets.
Definition qgscolorwidgets.h:40
QgsColorWidget::colorChanged
void colorChanged(const QColor &color)
Emitted when the widget's color changes.
QgsColorWidget::Hue
@ Hue
Hue component of color (based on HSV model)
Definition qgscolorwidgets.h:54
QgsColorWidget::Alpha
@ Alpha
Alpha component (opacity) of color.
Definition qgscolorwidgets.h:57
QgsColorWidget::Green
@ Green
Green component of color.
Definition qgscolorwidgets.h:52
QgsColorWidget::Red
@ Red
Red component of color.
Definition qgscolorwidgets.h:51
QgsColorWidget::Saturation
@ Saturation
Saturation component of color (based on HSV model)
Definition qgscolorwidgets.h:55
QgsColorWidget::Blue
@ Blue
Blue component of color.
Definition qgscolorwidgets.h:53
QgsColorWidget::Value
@ Value
Value component of color (based on HSV model)
Definition qgscolorwidgets.h:56
QgsCompoundColorWidget::LayoutVertical
@ LayoutVertical
Use a narrower, vertically stacked layout.
Definition qgscompoundcolorwidget.h:45
QgsCompoundColorWidget::currentColorChanged
void currentColorChanged(const QColor &color)
Emitted when the dialog's color changes.
QgsCompoundColorWidget::hideEvent
void hideEvent(QHideEvent *e) override
Definition qgscompoundcolorwidget.cpp:743
QgsCompoundColorWidget::QgsCompoundColorWidget
QgsCompoundColorWidget(QWidget *parent=nullptr, const QColor &color=QColor(), Layout layout=LayoutDefault)
Constructor for QgsCompoundColorWidget.
Definition qgscompoundcolorwidget.cpp:37
QgsCompoundColorWidget::mousePressEvent
void mousePressEvent(QMouseEvent *e) override
Definition qgscompoundcolorwidget.cpp:749
QgsCompoundColorWidget::importUserPaletteFromFile
static QgsUserColorScheme * importUserPaletteFromFile(QWidget *parent)
Triggers a user prompt for importing a new color scheme from an existing GPL file.
Definition qgscompoundcolorwidget.cpp:334
QgsCompoundColorWidget::setPreviousColor
void setPreviousColor(const QColor &color)
Sets the color to show in an optional "previous color" section.
Definition qgscompoundcolorwidget.cpp:737
QgsCompoundColorWidget::removeUserPalette
static bool removeUserPalette(QgsUserColorScheme *scheme, QWidget *parent)
Triggers a user prompt for removing an existing user color scheme.
Definition qgscompoundcolorwidget.cpp:394
QgsCompoundColorWidget::createNewUserPalette
static QgsUserColorScheme * createNewUserPalette(QWidget *parent)
Triggers a user prompt for creating a new user color scheme.
Definition qgscompoundcolorwidget.cpp:441
QgsCompoundColorWidget::mouseMoveEvent
void mouseMoveEvent(QMouseEvent *e) override
Definition qgscompoundcolorwidget.cpp:811
QgsCompoundColorWidget::setAllowOpacity
void setAllowOpacity(bool allowOpacity)
Sets whether opacity modification (transparency) is permitted for the color dialog.
Definition qgscompoundcolorwidget.cpp:307
QgsCompoundColorWidget::setColor
void setColor(const QColor &color)
Sets the current color for the dialog.
Definition qgscompoundcolorwidget.cpp:709
QgsCompoundColorWidget::keyPressEvent
void keyPressEvent(QKeyEvent *e) override
Definition qgscompoundcolorwidget.cpp:840
QgsCompoundColorWidget::color
QColor color() const
Returns the current color for the dialog.
Definition qgscompoundcolorwidget.cpp:300
QgsCompoundColorWidget::mouseReleaseEvent
void mouseReleaseEvent(QMouseEvent *e) override
Definition qgscompoundcolorwidget.cpp:827
QgsGplColorScheme::setColors
bool setColors(const QgsNamedColorList &colors, const QString &context=QString(), const QColor &baseColor=QColor()) override
Sets the colors for the scheme.
Definition qgscolorscheme.cpp:259
QgsPanelWidget
Base class for any widget that can be shown as a inline panel.
Definition qgspanelwidget.h:30
QgsPanelWidget::keyPressEvent
void keyPressEvent(QKeyEvent *event) override
Overridden key press event to handle the esc event on the widget.
Definition qgspanelwidget.cpp:117
QgsRecentColorScheme::addRecentColor
static void addRecentColor(const QColor &color)
Adds a color to the list of recent colors.
Definition qgscolorscheme.cpp:68
QgsScreenHelper
A utility class for dynamic handling of changes to screen properties.
Definition qgsscreenhelper.h:36
QgsSettings
This class is a composition of two QSettings instances:
Definition qgssettings.h:63
QgsSettings::value
QVariant value(const QString &key, const QVariant &defaultValue=QVariant(), Section section=NoSection) const
Returns the value for setting key.
Definition qgssettings.cpp:171
QgsSettings::setValue
void setValue(const QString &key, const QVariant &value, QgsSettings::Section section=QgsSettings::NoSection)
Sets the value of setting key to value.
Definition qgssettings.cpp:300
QgsSymbolLayerUtils::importColorsFromGpl
static QgsNamedColorList importColorsFromGpl(QFile &file, bool &ok, QString &name)
Imports colors from a gpl GIMP palette file.
Definition qgssymbollayerutils.cpp:3782
QgsSymbolLayerUtils::colorToName
static QString colorToName(const QColor &color)
Returns a friendly display name for a color.
Definition qgssymbollayerutils.cpp:3474
QgsUserColorScheme
A color scheme which stores its colors in a gpl palette file within the "palettes" subfolder off the ...
Definition qgscolorscheme.h:176
QgsUserColorScheme::schemeName
QString schemeName() const override
Gets the name for the color scheme.
Definition qgscolorscheme.cpp:329
QgsUserColorScheme::setName
void setName(const QString &name)
Sets the name for the scheme.
Definition qgscolorscheme.h:197
QgsUserColorScheme::flags
QgsColorScheme::SchemeFlags flags() const override
Returns the current flags for the color scheme.
Definition qgscolorscheme.cpp:339
QgsUserColorScheme::erase
bool erase()
Erases the associated gpl palette file from the users "palettes" folder.
Definition qgscolorscheme.cpp:354
QgsUserColorScheme::setShowSchemeInMenu
void setShowSchemeInMenu(bool show)
Sets whether a this scheme should be shown in color button menus.
Definition qgscolorscheme.cpp:372
QgsNamedColorList
QList< QPair< QColor, QString > > QgsNamedColorList
List of colors paired with a friendly display name identifying the color.
Definition qgscolorscheme.h:34
QgsGuiUtils::scaleIconSize
int scaleIconSize(int standardSize)
Scales an icon size to compensate for display pixel density, making the icon size hi-dpi friendly,...
Definition qgsguiutils.cpp:246
whileBlocking
QgsSignalBlocker< Object > whileBlocking(Object *object)
Temporarily blocks signals from a QObject while calling a single method from the object.
Definition qgis.h:4258
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