Esempio n. 1
0
void QgsFontButton::dragEnterEvent( QDragEnterEvent *e )
{
  //is dragged data valid font data?
  QColor mimeColor;
  QgsTextFormat format;
  QFont font;
  bool hasAlpha = false;

  if ( mMode == ModeTextRenderer && formatFromMimeData( e->mimeData(), format ) )
  {
    e->acceptProposedAction();
    updatePreview( QColor(), &format );
  }
  else if ( mMode == ModeQFont && fontFromMimeData( e->mimeData(), font ) )
  {
    e->acceptProposedAction();
    updatePreview( QColor(), nullptr, &font );
  }
  else if ( mMode == ModeTextRenderer && colorFromMimeData( e->mimeData(), mimeColor, hasAlpha ) )
  {
    //if so, we accept the drag, and temporarily change the button's color
    //to match the dragged color. This gives immediate feedback to the user
    //that colors can be dropped here
    e->acceptProposedAction();
    updatePreview( mimeColor );
  }
}
Esempio n. 2
0
void QgsColorButton::pasteColor()
{
  QColor clipColor;
  if ( colorFromMimeData( QApplication::clipboard()->mimeData(), clipColor ) )
  {
    //paste color
    setColor( clipColor );
    addRecentColor( clipColor );
  }
}
Esempio n. 3
0
void QgsColorButton::dropEvent( QDropEvent *e )
{
  const bool isProjectColor = linkedProjectColor().isValid();
  if ( isProjectColor )
    return;

  //is dropped data valid color data?
  QColor mimeColor;
  if ( colorFromMimeData( e->mimeData(), mimeColor ) )
  {
    //accept drop and set new color
    e->acceptProposedAction();
    setColor( mimeColor );
    addRecentColor( mimeColor );
  }
}
Esempio n. 4
0
void QgsColorButton::dragEnterEvent( QDragEnterEvent *e )
{
  const bool isProjectColor = linkedProjectColor().isValid();
  if ( isProjectColor )
    return;

  //is dragged data valid color data?
  QColor mimeColor;
  if ( colorFromMimeData( e->mimeData(), mimeColor ) )
  {
    //if so, we accept the drag, and temporarily change the button's color
    //to match the dragged color. This gives immediate feedback to the user
    //that colors can be dropped here
    e->acceptProposedAction();
    setButtonBackground( mimeColor );
  }
}
Esempio n. 5
0
void QgsFontButton::dropEvent( QDropEvent *e )
{
  //is dropped data valid format data?
  QColor mimeColor;
  QgsTextFormat format;
  QFont font;
  bool hasAlpha = false;
  if ( mMode == ModeTextRenderer && formatFromMimeData( e->mimeData(), format ) )
  {
    setTextFormat( format );
    QgsFontUtils::addRecentFontFamily( mFormat.font().family() );
    return;
  }
  else if ( mMode == ModeQFont && fontFromMimeData( e->mimeData(), font ) )
  {
    QgsFontUtils::addRecentFontFamily( font.family() );
    setCurrentFont( font );
    return;
  }
  else if ( mMode == ModeTextRenderer && colorFromMimeData( e->mimeData(), mimeColor, hasAlpha ) )
  {
    //accept drop and set new color
    e->acceptProposedAction();

    if ( hasAlpha )
    {
      mFormat.setOpacity( mimeColor.alphaF() );
    }
    mimeColor.setAlphaF( 1.0 );
    mFormat.setColor( mimeColor );
    QgsRecentColorScheme::addRecentColor( mimeColor );
    updatePreview();
    emit changed();
  }
  updatePreview();
}
Esempio n. 6
0
void QgsColorButton::prepareMenu()
{
  //we need to tear down and rebuild this menu every time it is shown. Otherwise the space allocated to any
  //QgsColorSwatchGridAction is not recalculated by Qt and the swatch grid may not be the correct size
  //for the number of colors shown in the grid. Note that we MUST refresh color swatch grids every time this
  //menu is opened, otherwise color schemes like the recent color scheme grid are meaningless
  mMenu->clear();

  const bool isProjectColor = linkedProjectColor().isValid();

  if ( !isProjectColor )
  {
    if ( mShowNull )
    {
      QAction *nullAction = new QAction( tr( "Clear Color" ), this );
      nullAction->setIcon( createMenuIcon( Qt::transparent, false ) );
      mMenu->addAction( nullAction );
      connect( nullAction, &QAction::triggered, this, &QgsColorButton::setToNull );
    }

    //show default color option if set
    if ( mDefaultColor.isValid() )
    {
      QAction *defaultColorAction = new QAction( tr( "Default Color" ), this );
      defaultColorAction->setIcon( createMenuIcon( mDefaultColor ) );
      mMenu->addAction( defaultColorAction );
      connect( defaultColorAction, &QAction::triggered, this, &QgsColorButton::setToDefaultColor );
    }

    if ( mShowNoColorOption && mAllowOpacity )
    {
      QAction *noColorAction = new QAction( mNoColorString, this );
      noColorAction->setIcon( createMenuIcon( Qt::transparent, false ) );
      mMenu->addAction( noColorAction );
      connect( noColorAction, &QAction::triggered, this, &QgsColorButton::setToNoColor );
    }

    mMenu->addSeparator();
    QgsColorWheel *colorWheel = new QgsColorWheel( mMenu );
    colorWheel->setColor( color() );
    QgsColorWidgetAction *colorAction = new QgsColorWidgetAction( colorWheel, mMenu, mMenu );
    colorAction->setDismissOnColorSelection( false );
    connect( colorAction, &QgsColorWidgetAction::colorChanged, this, &QgsColorButton::setColor );
    mMenu->addAction( colorAction );
    if ( mAllowOpacity )
    {
      QgsColorRampWidget *alphaRamp = new QgsColorRampWidget( mMenu, QgsColorWidget::Alpha, QgsColorRampWidget::Horizontal );
      alphaRamp->setColor( color() );
      QgsColorWidgetAction *alphaAction = new QgsColorWidgetAction( alphaRamp, mMenu, mMenu );
      alphaAction->setDismissOnColorSelection( false );
      connect( alphaAction, &QgsColorWidgetAction::colorChanged, this, &QgsColorButton::setColor );
      connect( alphaAction, &QgsColorWidgetAction::colorChanged, colorWheel, [colorWheel]( const QColor & color ) { colorWheel->setColor( color, false ); }
             );
      connect( colorAction, &QgsColorWidgetAction::colorChanged, alphaRamp, [alphaRamp]( const QColor & color ) { alphaRamp->setColor( color, false ); }
             );
      mMenu->addAction( alphaAction );
    }

    if ( mColorSchemeRegistry )
    {
      //get schemes with ShowInColorButtonMenu flag set
      QList< QgsColorScheme * > schemeList = mColorSchemeRegistry->schemes( QgsColorScheme::ShowInColorButtonMenu );
      QList< QgsColorScheme * >::iterator it = schemeList.begin();
      for ( ; it != schemeList.end(); ++it )
      {
        QgsColorSwatchGridAction *colorAction = new QgsColorSwatchGridAction( *it, mMenu, mContext, this );
        colorAction->setBaseColor( mColor );
        mMenu->addAction( colorAction );
        connect( colorAction, &QgsColorSwatchGridAction::colorChanged, this, &QgsColorButton::setValidColor );
        connect( colorAction, &QgsColorSwatchGridAction::colorChanged, this, &QgsColorButton::addRecentColor );
      }
    }

    mMenu->addSeparator();
  }

  if ( isProjectColor )
  {
    QAction *unlinkAction = new QAction( tr( "Unlink Color" ), mMenu );
    mMenu->addAction( unlinkAction );
    connect( unlinkAction, &QAction::triggered, this, &QgsColorButton::unlink );
  }

  QAction *copyColorAction = new QAction( tr( "Copy Color" ), this );
  mMenu->addAction( copyColorAction );
  connect( copyColorAction, &QAction::triggered, this, &QgsColorButton::copyColor );

  if ( !isProjectColor )
  {
    QAction *pasteColorAction = new QAction( tr( "Paste Color" ), this );
    //enable or disable paste action based on current clipboard contents. We always show the paste
    //action, even if it's disabled, to give hint to the user that pasting colors is possible
    QColor clipColor;
    if ( colorFromMimeData( QApplication::clipboard()->mimeData(), clipColor ) )
    {
      pasteColorAction->setIcon( createMenuIcon( clipColor ) );
    }
    else
    {
      pasteColorAction->setEnabled( false );
    }
    mMenu->addAction( pasteColorAction );
    connect( pasteColorAction, &QAction::triggered, this, &QgsColorButton::pasteColor );

    QAction *pickColorAction = new QAction( tr( "Pick Color" ), this );
    mMenu->addAction( pickColorAction );
    connect( pickColorAction, &QAction::triggered, this, &QgsColorButton::activatePicker );

    QAction *chooseColorAction = new QAction( tr( "Choose Color…" ), this );
    mMenu->addAction( chooseColorAction );
    connect( chooseColorAction, &QAction::triggered, this, &QgsColorButton::showColorDialog );
  }
}