brushtool.cpp Example File

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  #include "brushtool.h"
  #include <QtWidgets/QPushButton>
  #include <QtWidgets/QFormLayout>
  #include <QtWidgets/QComboBox>
  #include <QtWidgets/QColorDialog>

  BrushTool::BrushTool(QString title, QWidget *parent)
      : QWidget(parent)
  {
      setWindowTitle(title);
      setWindowFlags(Qt::Tool);

      m_colorButton = new QPushButton();
      m_styleCombo = new QComboBox();
      m_styleCombo->addItem("Nobrush", (int) Qt::NoBrush);
      m_styleCombo->addItem("Solidpattern", (int) Qt::SolidPattern);
      m_styleCombo->addItem("Dense1pattern", (int) Qt::Dense1Pattern);
      m_styleCombo->addItem("Dense2attern", (int) Qt::Dense2Pattern);
      m_styleCombo->addItem("Dense3Pattern", (int) Qt::Dense3Pattern);
      m_styleCombo->addItem("Dense4Pattern", (int) Qt::Dense4Pattern);
      m_styleCombo->addItem("Dense5Pattern", (int) Qt::Dense5Pattern);
      m_styleCombo->addItem("Dense6Pattern", (int) Qt::Dense6Pattern);
      m_styleCombo->addItem("Dense7Pattern", (int) Qt::Dense7Pattern);
      m_styleCombo->addItem("HorPattern", (int) Qt::HorPattern);
      m_styleCombo->addItem("VerPattern", (int) Qt::VerPattern);
      m_styleCombo->addItem("CrossPattern", (int) Qt::CrossPattern);
      m_styleCombo->addItem("BDiagPattern", (int) Qt::BDiagPattern);
      m_styleCombo->addItem("FDiagPattern", (int) Qt::FDiagPattern);
      m_styleCombo->addItem("DiagCrossPattern", (int) Qt::DiagCrossPattern);

      QFormLayout *layout = new QFormLayout();
      layout->addRow("Color", m_colorButton);
      layout->addRow("Style", m_styleCombo);
      setLayout(layout);

      connect(m_colorButton, SIGNAL(clicked()), this, SLOT(showColorDialog()));
      connect(m_styleCombo, SIGNAL(currentIndexChanged(int)), this, SLOT(updateStyle()));
  }

  void BrushTool::setBrush(QBrush brush)
  {
      m_brush = brush;
      m_colorButton->setText(m_brush.color().name());
      m_styleCombo->setCurrentIndex(m_brush.style()); // index matches the enum
  }

  QBrush BrushTool::brush() const
  {
      return m_brush;
  }

  QString BrushTool::name()
  {
      return name(m_brush);
  }

  QString BrushTool::name(const QBrush &brush)
  {
      return brush.color().name();
  }

  void BrushTool::showColorDialog()
  {
      QColorDialog dialog(m_brush.color());
      dialog.show();
      dialog.exec();
      m_brush.setColor(dialog.selectedColor());
      m_colorButton->setText(m_brush.color().name());
      emit changed();
  }

  void BrushTool::updateStyle()
  {
      Qt::BrushStyle style = (Qt::BrushStyle) m_styleCombo->itemData(m_styleCombo->currentIndex()).toInt();
      if (m_brush.style() != style) {
          m_brush.setStyle(style);
          emit changed();
      }
  }

  #include "moc_brushtool.cpp"