QGIS API Documentation  3.14.0-Pi (9f7028fd23)
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 
23 #include <QHeaderView>
24 #include <QPushButton>
25 #include <QMenu>
26 #include <QToolButton>
27 #include <QFileDialog>
28 #include <QMessageBox>
29 #include <QDesktopWidget>
30 #include <QMouseEvent>
31 #include <QScreen>
32 #include <QInputDialog>
33 #include <QVBoxLayout>
34 
35 QgsCompoundColorWidget::QgsCompoundColorWidget( QWidget *parent, const QColor &color, Layout widgetLayout )
36  : QgsPanelWidget( parent )
37 {
38  setupUi( this );
39  connect( mHueRadio, &QRadioButton::toggled, this, &QgsCompoundColorWidget::mHueRadio_toggled );
40  connect( mSaturationRadio, &QRadioButton::toggled, this, &QgsCompoundColorWidget::mSaturationRadio_toggled );
41  connect( mValueRadio, &QRadioButton::toggled, this, &QgsCompoundColorWidget::mValueRadio_toggled );
42  connect( mRedRadio, &QRadioButton::toggled, this, &QgsCompoundColorWidget::mRedRadio_toggled );
43  connect( mGreenRadio, &QRadioButton::toggled, this, &QgsCompoundColorWidget::mGreenRadio_toggled );
44  connect( mBlueRadio, &QRadioButton::toggled, this, &QgsCompoundColorWidget::mBlueRadio_toggled );
45  connect( mAddColorToSchemeButton, &QPushButton::clicked, this, &QgsCompoundColorWidget::mAddColorToSchemeButton_clicked );
46  connect( mAddCustomColorButton, &QPushButton::clicked, this, &QgsCompoundColorWidget::mAddCustomColorButton_clicked );
47  connect( mSampleButton, &QPushButton::clicked, this, &QgsCompoundColorWidget::mSampleButton_clicked );
48  connect( mTabWidget, &QTabWidget::currentChanged, this, &QgsCompoundColorWidget::mTabWidget_currentChanged );
49  connect( mActionShowInButtons, &QAction::toggled, this, &QgsCompoundColorWidget::mActionShowInButtons_toggled );
50 
51  if ( widgetLayout == LayoutVertical )
52  {
53  // shuffle stuff around
54  QVBoxLayout *newLayout = new QVBoxLayout();
55  newLayout->setMargin( 0 );
56  newLayout->setContentsMargins( 0, 0, 0, 0 );
57  newLayout->addWidget( mTabWidget );
58  newLayout->addWidget( mSlidersWidget );
59  newLayout->addWidget( mPreviewWidget );
60  newLayout->addWidget( mSwatchesWidget );
61  delete layout();
62  setLayout( newLayout );
63  }
64 
65  QgsSettings settings;
66 
67  mSchemeList->header()->hide();
68 #if QT_VERSION < QT_VERSION_CHECK(5, 11, 0)
69  mSchemeList->setColumnWidth( 0, static_cast< int >( Qgis::UI_SCALE_FACTOR * fontMetrics().width( 'X' ) * 6 ) );
70 #else
71  mSchemeList->setColumnWidth( 0, static_cast< int >( Qgis::UI_SCALE_FACTOR * fontMetrics().horizontalAdvance( 'X' ) * 6 ) );
72 #endif
73 
74 
75  //get schemes with ShowInColorDialog set
76  refreshSchemeComboBox();
77  QList<QgsColorScheme *> schemeList = QgsApplication::colorSchemeRegistry()->schemes( QgsColorScheme::ShowInColorDialog );
78 
79  //choose a reasonable starting scheme
80  int activeScheme = settings.value( QStringLiteral( "Windows/ColorDialog/activeScheme" ), 0 ).toInt();
81  activeScheme = activeScheme >= mSchemeComboBox->count() ? 0 : activeScheme;
82 
83  mSchemeList->setScheme( schemeList.at( activeScheme ) );
84 
85  mSchemeComboBox->setCurrentIndex( activeScheme );
86  updateActionsForCurrentScheme();
87 
88  //listen out for selection changes in list, so we can enable/disable the copy colors option
89  connect( mSchemeList->selectionModel(), &QItemSelectionModel::selectionChanged, this, &QgsCompoundColorWidget::listSelectionChanged );
90  //copy action defaults to disabled
91  mActionCopyColors->setEnabled( false );
92 
93  connect( mActionCopyColors, &QAction::triggered, mSchemeList, &QgsColorSchemeList::copyColors );
94  connect( mActionPasteColors, &QAction::triggered, mSchemeList, &QgsColorSchemeList::pasteColors );
95  connect( mActionExportColors, &QAction::triggered, mSchemeList, &QgsColorSchemeList::showExportColorsDialog );
96  connect( mActionImportColors, &QAction::triggered, mSchemeList, &QgsColorSchemeList::showImportColorsDialog );
97  connect( mActionImportPalette, &QAction::triggered, this, &QgsCompoundColorWidget::importPalette );
98  connect( mActionRemovePalette, &QAction::triggered, this, &QgsCompoundColorWidget::removePalette );
99  connect( mActionNewPalette, &QAction::triggered, this, &QgsCompoundColorWidget::newPalette );
100  connect( mRemoveColorsFromSchemeButton, &QAbstractButton::clicked, mSchemeList, &QgsColorSchemeList::removeSelection );
101 
102  QMenu *schemeMenu = new QMenu( mSchemeToolButton );
103  schemeMenu->addAction( mActionCopyColors );
104  schemeMenu->addAction( mActionPasteColors );
105  schemeMenu->addSeparator();
106  schemeMenu->addAction( mActionImportColors );
107  schemeMenu->addAction( mActionExportColors );
108  schemeMenu->addSeparator();
109  schemeMenu->addAction( mActionNewPalette );
110  schemeMenu->addAction( mActionImportPalette );
111  schemeMenu->addAction( mActionRemovePalette );
112  schemeMenu->addAction( mActionShowInButtons );
113  mSchemeToolButton->setMenu( schemeMenu );
114 
115  connect( mSchemeComboBox, static_cast<void ( QComboBox::* )( int )>( &QComboBox::currentIndexChanged ), this, &QgsCompoundColorWidget::schemeIndexChanged );
116  connect( mSchemeList, &QgsColorSchemeList::colorSelected, this, &QgsCompoundColorWidget::setColor );
117 
118  mOldColorLabel->hide();
119 
120  mVerticalRamp->setOrientation( QgsColorRampWidget::Vertical );
121  mVerticalRamp->setInteriorMargin( 2 );
122  mVerticalRamp->setShowFrame( true );
123 
124  mRedSlider->setComponent( QgsColorWidget::Red );
125  mGreenSlider->setComponent( QgsColorWidget::Green );
126  mBlueSlider->setComponent( QgsColorWidget::Blue );
127  mHueSlider->setComponent( QgsColorWidget::Hue );
128  mSaturationSlider->setComponent( QgsColorWidget::Saturation );
129  mValueSlider->setComponent( QgsColorWidget::Value );
130  mAlphaSlider->setComponent( QgsColorWidget::Alpha );
131 
132  mSwatchButton1->setShowMenu( false );
133  mSwatchButton1->setBehavior( QgsColorButton::SignalOnly );
134  mSwatchButton2->setShowMenu( false );
135  mSwatchButton2->setBehavior( QgsColorButton::SignalOnly );
136  mSwatchButton3->setShowMenu( false );
137  mSwatchButton3->setBehavior( QgsColorButton::SignalOnly );
138  mSwatchButton4->setShowMenu( false );
139  mSwatchButton4->setBehavior( QgsColorButton::SignalOnly );
140  mSwatchButton5->setShowMenu( false );
141  mSwatchButton5->setBehavior( QgsColorButton::SignalOnly );
142  mSwatchButton6->setShowMenu( false );
143  mSwatchButton6->setBehavior( QgsColorButton::SignalOnly );
144  mSwatchButton7->setShowMenu( false );
145  mSwatchButton7->setBehavior( QgsColorButton::SignalOnly );
146  mSwatchButton8->setShowMenu( false );
147  mSwatchButton8->setBehavior( QgsColorButton::SignalOnly );
148  mSwatchButton9->setShowMenu( false );
149  mSwatchButton9->setBehavior( QgsColorButton::SignalOnly );
150  mSwatchButton10->setShowMenu( false );
151  mSwatchButton10->setBehavior( QgsColorButton::SignalOnly );
152  mSwatchButton11->setShowMenu( false );
153  mSwatchButton11->setBehavior( QgsColorButton::SignalOnly );
154  mSwatchButton12->setShowMenu( false );
155  mSwatchButton12->setBehavior( QgsColorButton::SignalOnly );
156  mSwatchButton13->setShowMenu( false );
157  mSwatchButton13->setBehavior( QgsColorButton::SignalOnly );
158  mSwatchButton14->setShowMenu( false );
159  mSwatchButton14->setBehavior( QgsColorButton::SignalOnly );
160  mSwatchButton15->setShowMenu( false );
161  mSwatchButton15->setBehavior( QgsColorButton::SignalOnly );
162  mSwatchButton16->setShowMenu( false );
163  mSwatchButton16->setBehavior( QgsColorButton::SignalOnly );
164  //restore custom colors
165  mSwatchButton1->setColor( settings.value( QStringLiteral( "Windows/ColorDialog/customColor1" ), QVariant( QColor() ) ).value<QColor>() );
166  mSwatchButton2->setColor( settings.value( QStringLiteral( "Windows/ColorDialog/customColor2" ), QVariant( QColor() ) ).value<QColor>() );
167  mSwatchButton3->setColor( settings.value( QStringLiteral( "Windows/ColorDialog/customColor3" ), QVariant( QColor() ) ).value<QColor>() );
168  mSwatchButton4->setColor( settings.value( QStringLiteral( "Windows/ColorDialog/customColor4" ), QVariant( QColor() ) ).value<QColor>() );
169  mSwatchButton5->setColor( settings.value( QStringLiteral( "Windows/ColorDialog/customColor5" ), QVariant( QColor() ) ).value<QColor>() );
170  mSwatchButton6->setColor( settings.value( QStringLiteral( "Windows/ColorDialog/customColor6" ), QVariant( QColor() ) ).value<QColor>() );
171  mSwatchButton7->setColor( settings.value( QStringLiteral( "Windows/ColorDialog/customColor7" ), QVariant( QColor() ) ).value<QColor>() );
172  mSwatchButton8->setColor( settings.value( QStringLiteral( "Windows/ColorDialog/customColor8" ), QVariant( QColor() ) ).value<QColor>() );
173  mSwatchButton9->setColor( settings.value( QStringLiteral( "Windows/ColorDialog/customColor9" ), QVariant( QColor() ) ).value<QColor>() );
174  mSwatchButton10->setColor( settings.value( QStringLiteral( "Windows/ColorDialog/customColor10" ), QVariant( QColor() ) ).value<QColor>() );
175  mSwatchButton11->setColor( settings.value( QStringLiteral( "Windows/ColorDialog/customColor11" ), QVariant( QColor() ) ).value<QColor>() );
176  mSwatchButton12->setColor( settings.value( QStringLiteral( "Windows/ColorDialog/customColor12" ), QVariant( QColor() ) ).value<QColor>() );
177  mSwatchButton13->setColor( settings.value( QStringLiteral( "Windows/ColorDialog/customColor13" ), QVariant( QColor() ) ).value<QColor>() );
178  mSwatchButton14->setColor( settings.value( QStringLiteral( "Windows/ColorDialog/customColor14" ), QVariant( QColor() ) ).value<QColor>() );
179  mSwatchButton15->setColor( settings.value( QStringLiteral( "Windows/ColorDialog/customColor15" ), QVariant( QColor() ) ).value<QColor>() );
180  mSwatchButton16->setColor( settings.value( QStringLiteral( "Windows/ColorDialog/customColor16" ), QVariant( QColor() ) ).value<QColor>() );
181 
182  //restore sample radius
183  mSpinBoxRadius->setValue( settings.value( QStringLiteral( "Windows/ColorDialog/sampleRadius" ), 1 ).toInt() );
184  mSamplePreview->setColor( QColor() );
185 
186  // hidpi friendly sizes
187  const int swatchWidth = static_cast< int >( std::round( std::max( Qgis::UI_SCALE_FACTOR * 1.9 * mSwatchButton1->fontMetrics().height(), 38.0 ) ) );
188  const int swatchHeight = static_cast< int >( std::round( std::max( Qgis::UI_SCALE_FACTOR * 1.5 * mSwatchButton1->fontMetrics().height(), 30.0 ) ) );
189  mSwatchButton1->setMinimumSize( swatchWidth, swatchHeight );
190  mSwatchButton1->setMaximumSize( swatchWidth, swatchHeight );
191  mSwatchButton2->setMinimumSize( swatchWidth, swatchHeight );
192  mSwatchButton2->setMaximumSize( swatchWidth, swatchHeight );
193  mSwatchButton3->setMinimumSize( swatchWidth, swatchHeight );
194  mSwatchButton3->setMaximumSize( swatchWidth, swatchHeight );
195  mSwatchButton4->setMinimumSize( swatchWidth, swatchHeight );
196  mSwatchButton4->setMaximumSize( swatchWidth, swatchHeight );
197  mSwatchButton5->setMinimumSize( swatchWidth, swatchHeight );
198  mSwatchButton5->setMaximumSize( swatchWidth, swatchHeight );
199  mSwatchButton6->setMinimumSize( swatchWidth, swatchHeight );
200  mSwatchButton6->setMaximumSize( swatchWidth, swatchHeight );
201  mSwatchButton7->setMinimumSize( swatchWidth, swatchHeight );
202  mSwatchButton7->setMaximumSize( swatchWidth, swatchHeight );
203  mSwatchButton8->setMinimumSize( swatchWidth, swatchHeight );
204  mSwatchButton8->setMaximumSize( swatchWidth, swatchHeight );
205  mSwatchButton9->setMinimumSize( swatchWidth, swatchHeight );
206  mSwatchButton9->setMaximumSize( swatchWidth, swatchHeight );
207  mSwatchButton10->setMinimumSize( swatchWidth, swatchHeight );
208  mSwatchButton10->setMaximumSize( swatchWidth, swatchHeight );
209  mSwatchButton11->setMinimumSize( swatchWidth, swatchHeight );
210  mSwatchButton11->setMaximumSize( swatchWidth, swatchHeight );
211  mSwatchButton12->setMinimumSize( swatchWidth, swatchHeight );
212  mSwatchButton12->setMaximumSize( swatchWidth, swatchHeight );
213  mSwatchButton13->setMinimumSize( swatchWidth, swatchHeight );
214  mSwatchButton13->setMaximumSize( swatchWidth, swatchHeight );
215  mSwatchButton14->setMinimumSize( swatchWidth, swatchHeight );
216  mSwatchButton14->setMaximumSize( swatchWidth, swatchHeight );
217  mSwatchButton15->setMinimumSize( swatchWidth, swatchHeight );
218  mSwatchButton15->setMaximumSize( swatchWidth, swatchHeight );
219  mSwatchButton16->setMinimumSize( swatchWidth, swatchHeight );
220  mSwatchButton16->setMaximumSize( swatchWidth, swatchHeight );
221  const int previewHeight = static_cast< int >( std::round( std::max( Qgis::UI_SCALE_FACTOR * 2.0 * mSwatchButton1->fontMetrics().height(), 40.0 ) ) );
222  mColorPreview->setMinimumSize( 0, previewHeight );
223  mPreviewWidget->setMaximumHeight( previewHeight * 2 );
224  const int swatchAddSize = static_cast< int >( std::round( std::max( Qgis::UI_SCALE_FACTOR * 1.4 * mSwatchButton1->fontMetrics().height(), 28.0 ) ) );
225  mAddCustomColorButton->setMinimumWidth( swatchAddSize );
226  mAddCustomColorButton->setMaximumWidth( swatchAddSize );
227 
228  const int iconSize = QgsGuiUtils::scaleIconSize( 16 );
229  mTabWidget->setIconSize( QSize( iconSize, iconSize ) );
230 
231  if ( color.isValid() )
232  {
233  setColor( color );
234  }
235 
236  //restore active component radio button
237  int activeRadio = settings.value( QStringLiteral( "Windows/ColorDialog/activeComponent" ), 2 ).toInt();
238  switch ( activeRadio )
239  {
240  case 0:
241  mHueRadio->setChecked( true );
242  break;
243  case 1:
244  mSaturationRadio->setChecked( true );
245  break;
246  case 2:
247  mValueRadio->setChecked( true );
248  break;
249  case 3:
250  mRedRadio->setChecked( true );
251  break;
252  case 4:
253  mGreenRadio->setChecked( true );
254  break;
255  case 5:
256  mBlueRadio->setChecked( true );
257  break;
258  }
259  int currentTab = settings.value( QStringLiteral( "Windows/ColorDialog/activeTab" ), 0 ).toInt();
260  mTabWidget->setCurrentIndex( currentTab );
261 
262  //setup connections
263  connect( mColorBox, &QgsColorWidget::colorChanged, this, &QgsCompoundColorWidget::setColor );
264  connect( mColorWheel, &QgsColorWidget::colorChanged, this, &QgsCompoundColorWidget::setColor );
265  connect( mColorText, &QgsColorWidget::colorChanged, this, &QgsCompoundColorWidget::setColor );
266  connect( mVerticalRamp, &QgsColorWidget::colorChanged, this, &QgsCompoundColorWidget::setColor );
267  connect( mRedSlider, &QgsColorWidget::colorChanged, this, &QgsCompoundColorWidget::setColor );
268  connect( mGreenSlider, &QgsColorWidget::colorChanged, this, &QgsCompoundColorWidget::setColor );
269  connect( mBlueSlider, &QgsColorWidget::colorChanged, this, &QgsCompoundColorWidget::setColor );
270  connect( mHueSlider, &QgsColorWidget::colorChanged, this, &QgsCompoundColorWidget::setColor );
271  connect( mValueSlider, &QgsColorWidget::colorChanged, this, &QgsCompoundColorWidget::setColor );
272  connect( mSaturationSlider, &QgsColorWidget::colorChanged, this, &QgsCompoundColorWidget::setColor );
273  connect( mAlphaSlider, &QgsColorWidget::colorChanged, this, &QgsCompoundColorWidget::setColor );
274  connect( mColorPreview, &QgsColorWidget::colorChanged, this, &QgsCompoundColorWidget::setColor );
275  connect( mSwatchButton1, &QgsColorButton::colorClicked, this, &QgsCompoundColorWidget::setColor );
276  connect( mSwatchButton2, &QgsColorButton::colorClicked, this, &QgsCompoundColorWidget::setColor );
277  connect( mSwatchButton3, &QgsColorButton::colorClicked, this, &QgsCompoundColorWidget::setColor );
278  connect( mSwatchButton4, &QgsColorButton::colorClicked, this, &QgsCompoundColorWidget::setColor );
279  connect( mSwatchButton5, &QgsColorButton::colorClicked, this, &QgsCompoundColorWidget::setColor );
280  connect( mSwatchButton6, &QgsColorButton::colorClicked, this, &QgsCompoundColorWidget::setColor );
281  connect( mSwatchButton7, &QgsColorButton::colorClicked, this, &QgsCompoundColorWidget::setColor );
282  connect( mSwatchButton8, &QgsColorButton::colorClicked, this, &QgsCompoundColorWidget::setColor );
283  connect( mSwatchButton9, &QgsColorButton::colorClicked, this, &QgsCompoundColorWidget::setColor );
284  connect( mSwatchButton10, &QgsColorButton::colorClicked, this, &QgsCompoundColorWidget::setColor );
285  connect( mSwatchButton11, &QgsColorButton::colorClicked, this, &QgsCompoundColorWidget::setColor );
286  connect( mSwatchButton12, &QgsColorButton::colorClicked, this, &QgsCompoundColorWidget::setColor );
287  connect( mSwatchButton13, &QgsColorButton::colorClicked, this, &QgsCompoundColorWidget::setColor );
288  connect( mSwatchButton14, &QgsColorButton::colorClicked, this, &QgsCompoundColorWidget::setColor );
289  connect( mSwatchButton15, &QgsColorButton::colorClicked, this, &QgsCompoundColorWidget::setColor );
290  connect( mSwatchButton16, &QgsColorButton::colorClicked, this, &QgsCompoundColorWidget::setColor );
291 }
292 
293 QgsCompoundColorWidget::~QgsCompoundColorWidget()
294 {
295  saveSettings();
296  if ( !mDiscarded )
297  {
298  QgsRecentColorScheme::addRecentColor( color() );
299  }
300 }
301 
302 QColor QgsCompoundColorWidget::color() const
303 {
304  //all widgets should have the same color, so it shouldn't matter
305  //which we fetch it from
306  return mColorPreview->color();
307 }
308 
309 void QgsCompoundColorWidget::setAllowOpacity( const bool allowOpacity )
310 {
311  mAllowAlpha = allowOpacity;
312  mAlphaLabel->setVisible( allowOpacity );
313  mAlphaSlider->setVisible( allowOpacity );
314  if ( !allowOpacity )
315  {
316  mAlphaLayout->setContentsMargins( 0, 0, 0, 0 );
317  mAlphaLayout->setSpacing( 0 );
318  }
319 }
320 
321 void QgsCompoundColorWidget::refreshSchemeComboBox()
322 {
323  mSchemeComboBox->blockSignals( true );
324  mSchemeComboBox->clear();
325  QList<QgsColorScheme *> schemeList = QgsApplication::colorSchemeRegistry()->schemes( QgsColorScheme::ShowInColorDialog );
326  QList<QgsColorScheme *>::const_iterator schemeIt = schemeList.constBegin();
327  for ( ; schemeIt != schemeList.constEnd(); ++schemeIt )
328  {
329  mSchemeComboBox->addItem( ( *schemeIt )->schemeName() );
330  }
331  mSchemeComboBox->blockSignals( false );
332 }
333 
334 
335 QgsUserColorScheme *QgsCompoundColorWidget::importUserPaletteFromFile( QWidget *parent )
336 {
337  QgsSettings s;
338  QString lastDir = s.value( QStringLiteral( "/UI/lastGplPaletteDir" ), QDir::homePath() ).toString();
339  QString filePath = QFileDialog::getOpenFileName( parent, tr( "Select Palette File" ), lastDir, QStringLiteral( "GPL (*.gpl);;All files (*.*)" ) );
340  if ( parent )
341  parent->activateWindow();
342  if ( filePath.isEmpty() )
343  {
344  return nullptr;
345  }
346 
347  //check if file exists
348  QFileInfo fileInfo( filePath );
349  if ( !fileInfo.exists() || !fileInfo.isReadable() )
350  {
351  QMessageBox::critical( nullptr, tr( "Import Color Palette" ), tr( "Error, file does not exist or is not readable." ) );
352  return nullptr;
353  }
354 
355  s.setValue( QStringLiteral( "/UI/lastGplPaletteDir" ), fileInfo.absolutePath() );
356  QFile file( filePath );
357 
358  QgsNamedColorList importedColors;
359  bool ok = false;
360  QString paletteName;
361  importedColors = QgsSymbolLayerUtils::importColorsFromGpl( file, ok, paletteName );
362  if ( !ok )
363  {
364  QMessageBox::critical( nullptr, tr( "Import Color Palette" ), tr( "Palette file is not readable." ) );
365  return nullptr;
366  }
367 
368  if ( importedColors.length() == 0 )
369  {
370  //no imported colors
371  QMessageBox::critical( nullptr, tr( "Import Color Palette" ), tr( "No colors found in palette file." ) );
372  return nullptr;
373  }
374 
375  //TODO - handle conflicting file names, name for new palette
376  QgsUserColorScheme *importedScheme = new QgsUserColorScheme( fileInfo.fileName() );
377  importedScheme->setName( paletteName );
378  importedScheme->setColors( importedColors );
379 
380  QgsApplication::colorSchemeRegistry()->addColorScheme( importedScheme );
381  return importedScheme;
382 }
383 
384 void QgsCompoundColorWidget::importPalette()
385 {
386  if ( importUserPaletteFromFile( this ) )
387  {
388  //refresh combobox
389  refreshSchemeComboBox();
390  mSchemeComboBox->setCurrentIndex( mSchemeComboBox->count() - 1 );
391  }
392 }
393 
394 
395 bool QgsCompoundColorWidget::removeUserPalette( QgsUserColorScheme *scheme, QWidget *parent )
396 {
397  if ( QMessageBox::question( parent, tr( "Remove Color Palette" ),
398  QString( tr( "Are you sure you want to remove %1?" ) ).arg( scheme->schemeName() ),
399  QMessageBox::Yes | QMessageBox::No, QMessageBox::No ) != QMessageBox::Yes )
400  {
401  //user canceled
402  return false;
403  }
404 
405  //remove palette and associated gpl file
406  if ( !scheme->erase() )
407  {
408  //something went wrong
409  return false;
410  }
411 
412  //remove scheme from registry
413  QgsApplication::colorSchemeRegistry()->removeColorScheme( scheme );
414  return true;
415 }
416 
417 void QgsCompoundColorWidget::removePalette()
418 {
419  //get current scheme
420  QList<QgsColorScheme *> schemeList = QgsApplication::colorSchemeRegistry()->schemes( QgsColorScheme::ShowInColorDialog );
421  int prevIndex = mSchemeComboBox->currentIndex();
422  if ( prevIndex >= schemeList.length() )
423  {
424  return;
425  }
426 
427  //make user scheme is a user removable scheme
428  QgsUserColorScheme *userScheme = dynamic_cast<QgsUserColorScheme *>( schemeList.at( prevIndex ) );
429  if ( !userScheme )
430  {
431  return;
432  }
433 
434  if ( removeUserPalette( userScheme, this ) )
435  {
436  refreshSchemeComboBox();
437  prevIndex = std::max( std::min( prevIndex, mSchemeComboBox->count() - 1 ), 0 );
438  mSchemeComboBox->setCurrentIndex( prevIndex );
439  }
440 }
441 
442 QgsUserColorScheme *QgsCompoundColorWidget::createNewUserPalette( QWidget *parent )
443 {
444  bool ok = false;
445  QString name = QInputDialog::getText( parent, tr( "Create New Palette" ), tr( "Enter a name for the new palette:" ),
446  QLineEdit::Normal, tr( "New palette" ), &ok );
447 
448  if ( !ok || name.isEmpty() )
449  {
450  //user canceled
451  return nullptr;
452  }
453 
454 //generate file name for new palette
455  QDir palettePath( gplFilePath() );
456  QRegExp badChars( "[,^@={}\\[\\]~!?:&*\"|#%<>$\"'();`' /\\\\]" );
457  QString filename = name.simplified().toLower().replace( badChars, QStringLiteral( "_" ) );
458  if ( filename.isEmpty() )
459  {
460  filename = tr( "new_palette" );
461  }
462  QFileInfo destFileInfo( palettePath.filePath( filename + ".gpl" ) );
463  int fileNumber = 1;
464  while ( destFileInfo.exists() )
465  {
466  //try to generate a unique file name
467  destFileInfo = QFileInfo( palettePath.filePath( filename + QStringLiteral( "%1.gpl" ).arg( fileNumber ) ) );
468  fileNumber++;
469  }
470 
471  QgsUserColorScheme *newScheme = new QgsUserColorScheme( destFileInfo.fileName() );
472  newScheme->setName( name );
473 
474  QgsApplication::colorSchemeRegistry()->addColorScheme( newScheme );
475  return newScheme;
476 }
477 
478 void QgsCompoundColorWidget::newPalette()
479 {
480  if ( createNewUserPalette( this ) )
481  {
482  //refresh combobox and set new scheme as active
483  refreshSchemeComboBox();
484  mSchemeComboBox->setCurrentIndex( mSchemeComboBox->count() - 1 );
485  }
486 }
487 
488 QString QgsCompoundColorWidget::gplFilePath()
489 {
490  QString palettesDir = QgsApplication::qgisSettingsDirPath() + "palettes";
491 
492  QDir localDir;
493  if ( !localDir.mkpath( palettesDir ) )
494  {
495  return QString();
496  }
497 
498  return palettesDir;
499 }
500 
501 void QgsCompoundColorWidget::schemeIndexChanged( int index )
502 {
503  //save changes to scheme
504  if ( mSchemeList->isDirty() )
505  {
506  mSchemeList->saveColorsToScheme();
507  }
508 
509  //get schemes with ShowInColorDialog set
510  QList<QgsColorScheme *> schemeList = QgsApplication::colorSchemeRegistry()->schemes( QgsColorScheme::ShowInColorDialog );
511  if ( index >= schemeList.length() )
512  {
513  return;
514  }
515 
516  QgsColorScheme *scheme = schemeList.at( index );
517  mSchemeList->setScheme( scheme );
518 
519  updateActionsForCurrentScheme();
520 
521  //copy action defaults to disabled
522  mActionCopyColors->setEnabled( false );
523 }
524 
525 void QgsCompoundColorWidget::listSelectionChanged( const QItemSelection &selected, const QItemSelection &deselected )
526 {
527  Q_UNUSED( deselected )
528  mActionCopyColors->setEnabled( selected.length() > 0 );
529 }
530 
531 void QgsCompoundColorWidget::mAddCustomColorButton_clicked()
532 {
533  switch ( mLastCustomColorIndex )
534  {
535  case 0:
536  mSwatchButton1->setColor( mColorPreview->color() );
537  break;
538  case 1:
539  mSwatchButton2->setColor( mColorPreview->color() );
540  break;
541  case 2:
542  mSwatchButton3->setColor( mColorPreview->color() );
543  break;
544  case 3:
545  mSwatchButton4->setColor( mColorPreview->color() );
546  break;
547  case 4:
548  mSwatchButton5->setColor( mColorPreview->color() );
549  break;
550  case 5:
551  mSwatchButton6->setColor( mColorPreview->color() );
552  break;
553  case 6:
554  mSwatchButton7->setColor( mColorPreview->color() );
555  break;
556  case 7:
557  mSwatchButton8->setColor( mColorPreview->color() );
558  break;
559  case 8:
560  mSwatchButton9->setColor( mColorPreview->color() );
561  break;
562  case 9:
563  mSwatchButton10->setColor( mColorPreview->color() );
564  break;
565  case 10:
566  mSwatchButton11->setColor( mColorPreview->color() );
567  break;
568  case 11:
569  mSwatchButton12->setColor( mColorPreview->color() );
570  break;
571  case 12:
572  mSwatchButton13->setColor( mColorPreview->color() );
573  break;
574  case 13:
575  mSwatchButton14->setColor( mColorPreview->color() );
576  break;
577  case 14:
578  mSwatchButton15->setColor( mColorPreview->color() );
579  break;
580  case 15:
581  mSwatchButton16->setColor( mColorPreview->color() );
582  break;
583  }
584  mLastCustomColorIndex++;
585  if ( mLastCustomColorIndex >= 16 )
586  {
587  mLastCustomColorIndex = 0;
588  }
589 }
590 
591 void QgsCompoundColorWidget::mSampleButton_clicked()
592 {
593  //activate picker color
594  setCursor( QgsApplication::getThemeCursor( QgsApplication::Cursor::Sampler ) );
595  grabMouse();
596  grabKeyboard();
597  mPickingColor = true;
598  setMouseTracking( true );
599 }
600 
601 void QgsCompoundColorWidget::mTabWidget_currentChanged( int index )
602 {
603  //disable radio buttons if not using the first tab, as they have no meaning for other tabs
604  bool enabled = index == 0;
605  mRedRadio->setEnabled( enabled );
606  mBlueRadio->setEnabled( enabled );
607  mGreenRadio->setEnabled( enabled );
608  mHueRadio->setEnabled( enabled );
609  mSaturationRadio->setEnabled( enabled );
610  mValueRadio->setEnabled( enabled );
611 }
612 
613 void QgsCompoundColorWidget::mActionShowInButtons_toggled( bool state )
614 {
615  QgsUserColorScheme *scheme = dynamic_cast< QgsUserColorScheme * >( mSchemeList->scheme() );
616  if ( scheme )
617  {
618  scheme->setShowSchemeInMenu( state );
619  }
620 }
621 
622 QScreen *QgsCompoundColorWidget::findScreenAt( QPoint pos )
623 {
624  const QList< QScreen * > screens = QGuiApplication::screens();
625  for ( QScreen *screen : screens )
626  {
627  if ( screen->geometry().contains( pos ) )
628  {
629  return screen;
630  }
631  }
632  return nullptr;
633 }
634 
635 void QgsCompoundColorWidget::saveSettings()
636 {
637  //save changes to scheme
638  if ( mSchemeList->isDirty() )
639  {
640  mSchemeList->saveColorsToScheme();
641  }
642 
643  QgsSettings settings;
644 
645  //record active component
646  int activeRadio = 0;
647  if ( mHueRadio->isChecked() )
648  activeRadio = 0;
649  if ( mSaturationRadio->isChecked() )
650  activeRadio = 1;
651  if ( mValueRadio->isChecked() )
652  activeRadio = 2;
653  if ( mRedRadio->isChecked() )
654  activeRadio = 3;
655  if ( mGreenRadio->isChecked() )
656  activeRadio = 4;
657  if ( mBlueRadio->isChecked() )
658  activeRadio = 5;
659  settings.setValue( QStringLiteral( "Windows/ColorDialog/activeComponent" ), activeRadio );
660 
661  //record current scheme
662  settings.setValue( QStringLiteral( "Windows/ColorDialog/activeScheme" ), mSchemeComboBox->currentIndex() );
663 
664  //record current tab
665  settings.setValue( QStringLiteral( "Windows/ColorDialog/activeTab" ), mTabWidget->currentIndex() );
666 
667  //record custom colors
668  settings.setValue( QStringLiteral( "Windows/ColorDialog/customColor1" ), QVariant( mSwatchButton1->color() ) );
669  settings.setValue( QStringLiteral( "Windows/ColorDialog/customColor2" ), QVariant( mSwatchButton2->color() ) );
670  settings.setValue( QStringLiteral( "Windows/ColorDialog/customColor3" ), QVariant( mSwatchButton3->color() ) );
671  settings.setValue( QStringLiteral( "Windows/ColorDialog/customColor4" ), QVariant( mSwatchButton4->color() ) );
672  settings.setValue( QStringLiteral( "Windows/ColorDialog/customColor5" ), QVariant( mSwatchButton5->color() ) );
673  settings.setValue( QStringLiteral( "Windows/ColorDialog/customColor6" ), QVariant( mSwatchButton6->color() ) );
674  settings.setValue( QStringLiteral( "Windows/ColorDialog/customColor7" ), QVariant( mSwatchButton7->color() ) );
675  settings.setValue( QStringLiteral( "Windows/ColorDialog/customColor8" ), QVariant( mSwatchButton8->color() ) );
676  settings.setValue( QStringLiteral( "Windows/ColorDialog/customColor9" ), QVariant( mSwatchButton9->color() ) );
677  settings.setValue( QStringLiteral( "Windows/ColorDialog/customColor10" ), QVariant( mSwatchButton10->color() ) );
678  settings.setValue( QStringLiteral( "Windows/ColorDialog/customColor11" ), QVariant( mSwatchButton11->color() ) );
679  settings.setValue( QStringLiteral( "Windows/ColorDialog/customColor12" ), QVariant( mSwatchButton12->color() ) );
680  settings.setValue( QStringLiteral( "Windows/ColorDialog/customColor13" ), QVariant( mSwatchButton13->color() ) );
681  settings.setValue( QStringLiteral( "Windows/ColorDialog/customColor14" ), QVariant( mSwatchButton14->color() ) );
682  settings.setValue( QStringLiteral( "Windows/ColorDialog/customColor15" ), QVariant( mSwatchButton15->color() ) );
683  settings.setValue( QStringLiteral( "Windows/ColorDialog/customColor16" ), QVariant( mSwatchButton16->color() ) );
684 
685  //sample radius
686  settings.setValue( QStringLiteral( "Windows/ColorDialog/sampleRadius" ), mSpinBoxRadius->value() );
687 }
688 
689 void QgsCompoundColorWidget::stopPicking( QPoint eventPos, const bool takeSample )
690 {
691  //release mouse and keyboard, and reset cursor
692  releaseMouse();
693  releaseKeyboard();
694  unsetCursor();
695  setMouseTracking( false );
696  mPickingColor = false;
697 
698  if ( !takeSample )
699  {
700  //not sampling color, nothing more to do
701  return;
702  }
703 
704  //grab snapshot of pixel under mouse cursor
705  QColor snappedColor = sampleColor( eventPos );
706  mSamplePreview->setColor( snappedColor );
707  mColorPreview->setColor( snappedColor, true );
708 }
709 
710 void QgsCompoundColorWidget::setColor( const QColor &color )
711 {
712  if ( !color.isValid() )
713  {
714  return;
715  }
716 
717  QColor fixedColor = QColor( color );
718  if ( !mAllowAlpha )
719  {
720  //opacity disallowed, so don't permit transparent colors
721  fixedColor.setAlpha( 255 );
722  }
723  QList<QgsColorWidget *> colorWidgets = this->findChildren<QgsColorWidget *>();
724  const auto constColorWidgets = colorWidgets;
725  for ( QgsColorWidget *widget : constColorWidgets )
726  {
727  if ( widget == mSamplePreview )
728  {
729  continue;
730  }
731  widget->blockSignals( true );
732  widget->setColor( fixedColor );
733  widget->blockSignals( false );
734  }
735  emit currentColorChanged( fixedColor );
736 }
737 
738 void QgsCompoundColorWidget::setPreviousColor( const QColor &color )
739 {
740  mOldColorLabel->setVisible( color.isValid() );
741  mColorPreview->setColor2( color );
742 }
743 
744 void QgsCompoundColorWidget::mousePressEvent( QMouseEvent *e )
745 {
746  if ( mPickingColor )
747  {
748  //don't show dialog if in color picker mode
749  e->accept();
750  return;
751  }
752 
753  QWidget::mousePressEvent( e );
754 }
755 
756 QColor QgsCompoundColorWidget::averageColor( const QImage &image ) const
757 {
758  QRgb tmpRgb;
759  int colorCount = 0;
760  int sumRed = 0;
761  int sumBlue = 0;
762  int sumGreen = 0;
763  //scan through image and sum rgb components
764  for ( int heightIndex = 0; heightIndex < image.height(); ++heightIndex )
765  {
766  const QRgb *scanLine = reinterpret_cast< const QRgb * >( image.constScanLine( heightIndex ) );
767  for ( int widthIndex = 0; widthIndex < image.width(); ++widthIndex )
768  {
769  tmpRgb = scanLine[widthIndex];
770  sumRed += qRed( tmpRgb );
771  sumBlue += qBlue( tmpRgb );
772  sumGreen += qGreen( tmpRgb );
773  colorCount++;
774  }
775  }
776  //calculate average components as floats
777  double avgRed = static_cast<double>( sumRed ) / ( 255.0 * colorCount );
778  double avgGreen = static_cast<double>( sumGreen ) / ( 255.0 * colorCount );
779  double avgBlue = static_cast<double>( sumBlue ) / ( 255.0 * colorCount );
780 
781  //create a new color representing the average
782  return QColor::fromRgbF( avgRed, avgGreen, avgBlue );
783 }
784 
785 QColor QgsCompoundColorWidget::sampleColor( QPoint point ) const
786 {
787  int sampleRadius = mSpinBoxRadius->value() - 1;
788  QScreen *screen = findScreenAt( point );
789  if ( ! screen )
790  {
791  return QColor();
792  }
793  QPixmap snappedPixmap = screen->grabWindow( QApplication::desktop()->winId(),
794  point.x() - sampleRadius,
795  point.y() - sampleRadius,
796  1 + sampleRadius * 2,
797  1 + sampleRadius * 2 );
798  QImage snappedImage = snappedPixmap.toImage();
799  //scan all pixels and take average color
800  return averageColor( snappedImage );
801 }
802 
803 void QgsCompoundColorWidget::mouseMoveEvent( QMouseEvent *e )
804 {
805  if ( mPickingColor )
806  {
807  //currently in color picker mode
808  //sample color under cursor update preview widget to give feedback to user
809  QColor hoverColor = sampleColor( e->globalPos() );
810  mSamplePreview->setColor( hoverColor );
811 
812  e->accept();
813  return;
814  }
815 
816  QWidget::mouseMoveEvent( e );
817 }
818 
819 void QgsCompoundColorWidget::mouseReleaseEvent( QMouseEvent *e )
820 {
821  if ( mPickingColor )
822  {
823  //end color picking operation by sampling the color under cursor
824  stopPicking( e->globalPos() );
825  e->accept();
826  return;
827  }
828 
829  QWidget::mouseReleaseEvent( e );
830 }
831 
832 void QgsCompoundColorWidget::keyPressEvent( QKeyEvent *e )
833 {
834  if ( !mPickingColor )
835  {
836  //if not picking a color, use default tool button behavior
837  QgsPanelWidget::keyPressEvent( e );
838  return;
839  }
840 
841  //cancel picking, sampling the color if space was pressed
842  stopPicking( QCursor::pos(), e->key() == Qt::Key_Space );
843 }
844 
845 void QgsCompoundColorWidget::mHueRadio_toggled( bool checked )
846 {
847  if ( checked )
848  {
849  mColorBox->setComponent( QgsColorWidget::Hue );
850  mVerticalRamp->setComponent( QgsColorWidget::Hue );
851  }
852 }
853 
854 void QgsCompoundColorWidget::mSaturationRadio_toggled( bool checked )
855 {
856  if ( checked )
857  {
858  mColorBox->setComponent( QgsColorWidget::Saturation );
859  mVerticalRamp->setComponent( QgsColorWidget::Saturation );
860  }
861 }
862 
863 void QgsCompoundColorWidget::mValueRadio_toggled( bool checked )
864 {
865  if ( checked )
866  {
867  mColorBox->setComponent( QgsColorWidget::Value );
868  mVerticalRamp->setComponent( QgsColorWidget::Value );
869  }
870 }
871 
872 void QgsCompoundColorWidget::mRedRadio_toggled( bool checked )
873 {
874  if ( checked )
875  {
876  mColorBox->setComponent( QgsColorWidget::Red );
877  mVerticalRamp->setComponent( QgsColorWidget::Red );
878  }
879 }
880 
881 void QgsCompoundColorWidget::mGreenRadio_toggled( bool checked )
882 {
883  if ( checked )
884  {
885  mColorBox->setComponent( QgsColorWidget::Green );
886  mVerticalRamp->setComponent( QgsColorWidget::Green );
887  }
888 }
889 
890 void QgsCompoundColorWidget::mBlueRadio_toggled( bool checked )
891 {
892  if ( checked )
893  {
894  mColorBox->setComponent( QgsColorWidget::Blue );
895  mVerticalRamp->setComponent( QgsColorWidget::Blue );
896  }
897 }
898 
899 void QgsCompoundColorWidget::mAddColorToSchemeButton_clicked()
900 {
901  mSchemeList->addColor( mColorPreview->color(), QgsSymbolLayerUtils::colorToName( mColorPreview->color() ) );
902 }
903 
904 void QgsCompoundColorWidget::updateActionsForCurrentScheme()
905 {
906  QgsColorScheme *scheme = mSchemeList->scheme();
907 
908  mActionImportColors->setEnabled( scheme->isEditable() );
909  mActionPasteColors->setEnabled( scheme->isEditable() );
910  mAddColorToSchemeButton->setEnabled( scheme->isEditable() );
911  mRemoveColorsFromSchemeButton->setEnabled( scheme->isEditable() );
912 
913  QgsUserColorScheme *userScheme = dynamic_cast<QgsUserColorScheme *>( scheme );
914  mActionRemovePalette->setEnabled( static_cast< bool >( userScheme ) );
915  if ( userScheme )
916  {
917  mActionShowInButtons->setEnabled( true );
918  whileBlocking( mActionShowInButtons )->setChecked( userScheme->flags() & QgsColorScheme::ShowInColorButtonMenu );
919  }
920  else
921  {
922  whileBlocking( mActionShowInButtons )->setChecked( false );
923  mActionShowInButtons->setEnabled( false );
924  }
925 }
QgsColorButton::SignalOnly
@ SignalOnly
Emit colorClicked signal only, no dialog.
Definition: qgscolorbutton.h:67
QgsCompoundColorWidget::setAllowOpacity
void setAllowOpacity(bool allowOpacity)
Sets whether opacity modification (transparency) is permitted for the color dialog.
Definition: qgscompoundcolorwidget.cpp:309
QgsColorWidget::Value
@ Value
Value component of color (based on HSV model)
Definition: qgscolorwidgets.h:56
qgscolorscheme.h
QgsSymbolLayerUtils::importColorsFromGpl
static QgsNamedColorList importColorsFromGpl(QFile &file, bool &ok, QString &name)
Imports colors from a gpl GIMP palette file.
Definition: qgssymbollayerutils.cpp:3471
QgsSettings::value
QVariant value(const QString &key, const QVariant &defaultValue=QVariant(), Section section=NoSection) const
Returns the value for setting key.
Definition: qgssettings.cpp:174
QgsColorSchemeRegistry::addColorScheme
void addColorScheme(QgsColorScheme *scheme)
Adds a color scheme to the registry.
Definition: qgscolorschemeregistry.cpp:83
QgsApplication::getThemeCursor
static QCursor getThemeCursor(Cursor cursor)
Helper to get a theme cursor.
Definition: qgsapplication.cpp:635
QgsUserColorScheme
A color scheme which stores its colors in a gpl palette file within the "palettes" subfolder off the ...
Definition: qgscolorscheme.h:175
qgssymbollayerutils.h
QgsNamedColorList
QList< QPair< QColor, QString > > QgsNamedColorList
Definition: qgscolorscheme.h:34
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:257
QgsCompoundColorWidget::mouseReleaseEvent
void mouseReleaseEvent(QMouseEvent *e) override
Definition: qgscompoundcolorwidget.cpp:819
QgsApplication::colorSchemeRegistry
static QgsColorSchemeRegistry * colorSchemeRegistry()
Returns the application's color scheme registry, used for managing color schemes.
Definition: qgsapplication.cpp:2089
QgsSettings
Definition: qgssettings.h:61
QgsColorSchemeList::showImportColorsDialog
void showImportColorsDialog()
Displays a file picker dialog allowing users to import colors into the list from a file.
Definition: qgscolorschemelist.cpp:141
QgsColorSchemeList::copyColors
void copyColors()
Copies colors from the list to the clipboard.
Definition: qgscolorschemelist.cpp:118
QgsCompoundColorWidget::Layout
Layout
Widget layout.
Definition: qgscompoundcolorwidget.h:41
QgsCompoundColorWidget::setPreviousColor
void setPreviousColor(const QColor &color)
Sets the color to show in an optional "previous color" section.
Definition: qgscompoundcolorwidget.cpp:738
QgsColorWidget::Green
@ Green
Green component of color.
Definition: qgscolorwidgets.h:52
QgsCompoundColorWidget::keyPressEvent
void keyPressEvent(QKeyEvent *e) override
Definition: qgscompoundcolorwidget.cpp:832
QgsGuiUtils::iconSize
QSize iconSize(bool dockableToolbar)
Returns the user-preferred size of a window's toolbar icons.
Definition: qgsguiutils.cpp:264
QgsColorScheme::ShowInColorButtonMenu
@ ShowInColorButtonMenu
Show scheme in color button drop-down menu.
Definition: qgscolorscheme.h:74
qgsapplication.h
QgsCompoundColorWidget::LayoutVertical
@ LayoutVertical
Use a narrower, vertically stacked layout.
Definition: qgscompoundcolorwidget.h:44
QgsCompoundColorWidget::QgsCompoundColorWidget
QgsCompoundColorWidget(QWidget *parent=nullptr, const QColor &color=QColor(), Layout layout=LayoutDefault)
Constructor for QgsCompoundColorWidget.
Definition: qgscompoundcolorwidget.cpp:35
QgsApplication::qgisSettingsDirPath
static QString qgisSettingsDirPath()
Returns the path to the settings directory in user's home dir.
Definition: qgsapplication.cpp:973
QgsCompoundColorWidget::currentColorChanged
void currentColorChanged(const QColor &color)
Emitted when the dialog's color changes.
QgsCompoundColorWidget::~QgsCompoundColorWidget
~QgsCompoundColorWidget() override
Definition: qgscompoundcolorwidget.cpp:293
QgsPanelWidget
Base class for any widget that can be shown as a inline panel.
Definition: qgspanelwidget.h:29
QgsColorSchemeList::pasteColors
void pasteColors()
Pastes colors from clipboard to the list.
Definition: qgscolorschemelist.cpp:100
whileBlocking
QgsSignalBlocker< Object > whileBlocking(Object *object)
Temporarily blocks signals from a QObject while calling a single method from the object.
Definition: qgis.h:262
QgsColorWidget::Red
@ Red
Red component of color.
Definition: qgscolorwidgets.h:51
QgsUserColorScheme::flags
QgsColorScheme::SchemeFlags flags() const override
Returns the current flags for the color scheme.
Definition: qgscolorscheme.cpp:336
QgsCompoundColorWidget::mouseMoveEvent
void mouseMoveEvent(QMouseEvent *e) override
Definition: qgscompoundcolorwidget.cpp:803
QgsUserColorScheme::setName
void setName(const QString &name)
Sets the name for the scheme.
Definition: qgscolorscheme.h:197
QgsColorWidget
Definition: qgscolorwidgets.h:39
QgsColorWidget::Alpha
@ Alpha
Alpha component (opacity) of color.
Definition: qgscolorwidgets.h:57
QgsColorSchemeList::colorSelected
void colorSelected(const QColor &color)
Emitted when a color is selected from the list.
Qgis::UI_SCALE_FACTOR
static const double UI_SCALE_FACTOR
UI scaling factor.
Definition: qgis.h:195
QgsUserColorScheme::setShowSchemeInMenu
void setShowSchemeInMenu(bool show)
Sets whether a this scheme should be shown in color button menus.
Definition: qgscolorscheme.cpp:369
QgsPanelWidget::keyPressEvent
void keyPressEvent(QKeyEvent *event) override
Overridden key press event to handle the esc event on the widget.
Definition: qgspanelwidget.cpp:112
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:289
QgsCompoundColorWidget::mousePressEvent
void mousePressEvent(QMouseEvent *e) override
Definition: qgscompoundcolorwidget.cpp:744
QgsColorSchemeList::removeSelection
void removeSelection()
Removes any selected colors from the list.
Definition: qgscolorschemelist.cpp:75
QgsColorRampWidget::Vertical
@ Vertical
Vertical ramp.
Definition: qgscolorwidgets.h:491
QgsColorWidget::Blue
@ Blue
Blue component of color.
Definition: qgscolorwidgets.h:53
QgsColorButton::colorClicked
void colorClicked(const QColor &color)
Emitted when the button is clicked, if the button's behavior is set to SignalOnly.
QgsColorSchemeList::showExportColorsDialog
void showExportColorsDialog()
Displays a file picker dialog allowing users to export colors from the list into a file.
Definition: qgscolorschemelist.cpp:170
QgsColorWidget::Hue
@ Hue
Hue component of color (based on HSV model)
Definition: qgscolorwidgets.h:54
QgsCompoundColorWidget::createNewUserPalette
static QgsUserColorScheme * createNewUserPalette(QWidget *parent)
Triggers a user prompt for creating a new user color scheme.
Definition: qgscompoundcolorwidget.cpp:442
qgscompoundcolorwidget.h
QgsColorScheme
Abstract base class for color schemes.
Definition: qgscolorscheme.h:46
QgsColorSchemeRegistry::schemes
QList< QgsColorScheme * > schemes() const
Returns all color schemes in the registry.
Definition: qgscolorschemeregistry.cpp:88
QgsRecentColorScheme::addRecentColor
static void addRecentColor(const QColor &color)
Adds a color to the list of recent colors.
Definition: qgscolorscheme.cpp:66
QgsCompoundColorWidget::setColor
void setColor(const QColor &color)
Sets the current color for the dialog.
Definition: qgscompoundcolorwidget.cpp:710
qgssettings.h
QgsColorWidget::Saturation
@ Saturation
Saturation component of color (based on HSV model)
Definition: qgscolorwidgets.h:55
qgscolorschemeregistry.h
QgsCompoundColorWidget::removeUserPalette
static bool removeUserPalette(QgsUserColorScheme *scheme, QWidget *parent)
Triggers a user prompt for removing an existing user color scheme.
Definition: qgscompoundcolorwidget.cpp:395
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::colorChanged
void colorChanged(const QColor &color)
Emitted when the widget's color changes.
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:335
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:257
QgsUserColorScheme::erase
bool erase()
Erases the associated gpl palette file from the users "palettes" folder.
Definition: qgscolorscheme.cpp:351
QgsCompoundColorWidget::color
QColor color() const
Returns the current color for the dialog.
Definition: qgscompoundcolorwidget.cpp:302
QgsColorSchemeRegistry::removeColorScheme
bool removeColorScheme(QgsColorScheme *scheme)
Removes all matching color schemes from the registry.
Definition: qgscolorschemeregistry.cpp:169
QgsUserColorScheme::schemeName
QString schemeName() const override
Gets the name for the color scheme.
Definition: qgscolorscheme.cpp:326
QgsSymbolLayerUtils::colorToName
static QString colorToName(const QColor &color)
Returns a friendly display name for a color.
Definition: qgssymbollayerutils.cpp:3171
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