diff options
Diffstat (limited to 'Swift/QtUI/Trellis/QtGridSelectionDialog.cpp')
-rw-r--r-- | Swift/QtUI/Trellis/QtGridSelectionDialog.cpp | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/Swift/QtUI/Trellis/QtGridSelectionDialog.cpp b/Swift/QtUI/Trellis/QtGridSelectionDialog.cpp new file mode 100644 index 0000000..a7d3672 --- /dev/null +++ b/Swift/QtUI/Trellis/QtGridSelectionDialog.cpp @@ -0,0 +1,153 @@ +/* + * Copyright (c) 2014 Kevin Smith and Remko Tronçon + * Licensed under the GNU General Public License v3. + * See Documentation/Licenses/GPLv3.txt for more information. + */ + +#include <Swift/QtUI/Trellis/QtGridSelectionDialog.h> + +#include <QStyle> +#include <QPaintEvent> +#include <QPainter> +#include <QStyleOptionFrame> +#include <QStyleOptionMenuItem> + +namespace Swift { + +QtGridSelectionDialog::QtGridSelectionDialog(QWidget* parent) : QWidget(parent) +{ + frameSize = QSize(23,23) * 2; + maxGridSize = QSize(7,7); + minGridSize = QSize(1,1); + currentGridSize = QSize(1,1); + padding = 4; + setWindowFlags(Qt::Popup); + horizontalMargin = style()->pixelMetric(QStyle::PM_MenuVMargin); + verticalMargin = style()->pixelMetric(QStyle::PM_MenuVMargin); + +} + +QSize QtGridSelectionDialog::sizeHint() const +{ + // PM_MenuVMargin | frameSize | ( padding | frameSize ) * | PM_MenuVMargin + int width = horizontalMargin + frameSize.width() + (padding + frameSize.width()) * (currentGridSize.width() - 1) + horizontalMargin; + int height = verticalMargin + frameSize.height() + (padding + frameSize.height()) * (currentGridSize.height() - 1) + verticalMargin; + return QSize(width, height); +} + +void QtGridSelectionDialog::setCurrentGridSize(const QSize& size) { + currentGridSize = size; + emit currentGridSizeChanged(size); +} + +QSize QtGridSelectionDialog::getCurrentGridSize() const { + return currentGridSize; +} + +void QtGridSelectionDialog::setMinGridSize(const QSize& size) { + minGridSize = size; + emit minGridSizeChanged(size); +} + +QSize QtGridSelectionDialog::getMinGridSize() const { + return minGridSize; +} + +void QtGridSelectionDialog::setMaxGridSize(const QSize& size) { + maxGridSize = size; + emit maxGridSizeChanged(size); +} + +QSize QtGridSelectionDialog::getMaxGridSize() const { + return maxGridSize; +} + +void QtGridSelectionDialog::keyReleaseEvent(QKeyEvent* event) { + if (event) { + QSize newGridSize = currentGridSize; + if (event->key() == Qt::Key_Up) { + newGridSize += QSize(0, -1); + } + else if (event->key() == Qt::Key_Down) { + newGridSize += QSize(0, 1); + } + else if (event->key() == Qt::Key_Left) { + newGridSize += QSize(-1, 0); + } + else if (event->key() == Qt::Key_Right) { + newGridSize += QSize(1, 0); + } + else if (event->key() == Qt::Key_Return) { + hide(); + setCurrentGridSize(currentGridSize); + } + if (minGridSize.expandedTo(newGridSize).boundedTo(maxGridSize) != currentGridSize) { + currentGridSize = minGridSize.expandedTo(newGridSize).boundedTo(maxGridSize); + resize(sizeHint()); + } + } +} + +void QtGridSelectionDialog::mousePressEvent(QMouseEvent*) { + hide(); + setCurrentGridSize(currentGridSize); +} + +void QtGridSelectionDialog::paintEvent(QPaintEvent*) { + QPainter painter(this); + QStyleOptionMenuItem option; + option.state = QStyle::State_Enabled | QStyle::State_Selected; + option.menuRect = QRect(QPoint(0,0), frameSize); + for (int x = 0; x < currentGridSize.width(); x++) { + for (int y = 0; y < currentGridSize.height(); y++) { + int xPos = horizontalMargin + (x * (frameSize.width() + padding)); + int yPos = verticalMargin + (y * (frameSize.height() + padding)); + option.menuRect.moveTo(QPoint(xPos, yPos)); + option.rect = option.menuRect; + style()->drawControl(QStyle::CE_MenuItem, &option, &painter, 0); + } + } +} + +void QtGridSelectionDialog::showEvent(QShowEvent*) { + int xPos = horizontalMargin + frameSize.width() + (padding + frameSize.width()) * (currentGridSize.width() - 1) - frameSize.width()/2; + int yPos = verticalMargin + frameSize.height() + (padding + frameSize.height()) * (currentGridSize.height() - 1) - frameSize.height()/2; + QCursor::setPos(mapToGlobal(QPoint(xPos, yPos))); + setMouseTracking(true); +} + +void QtGridSelectionDialog::hideEvent(QHideEvent*) { + setMouseTracking(false); +} + +void QtGridSelectionDialog::mouseMoveEvent(QMouseEvent*) { + QPoint diff = (frameGeometry().bottomRight() - QCursor::pos()); + QSize newDimensions = currentGridSize; + if (diff.x() > frameSize.width() * 1.5) { + newDimensions -= QSize(diff.x() / (frameSize.width() * 1.5), 0); + } + if (diff.y() > frameSize.height() * 1.5) { + newDimensions -= QSize(0, diff.y() / (frameSize.height() * 1.5)); + } + if (minGridSize.expandedTo(newDimensions).boundedTo(maxGridSize) != currentGridSize) { + currentGridSize = minGridSize.expandedTo(newDimensions).boundedTo(maxGridSize); + resize(sizeHint()); + } +} + +void QtGridSelectionDialog::leaveEvent(QEvent *) { + QPoint diff = (frameGeometry().bottomRight() - QCursor::pos()); + QSize newGridSize = currentGridSize; + if (diff.x() < 0) { + newGridSize += QSize(1,0); + } + if (diff.y() < 0) { + newGridSize += QSize(0,1); + } + if (minGridSize.expandedTo(newGridSize).boundedTo(maxGridSize) != currentGridSize) { + currentGridSize = minGridSize.expandedTo(newGridSize).boundedTo(maxGridSize); + resize(sizeHint()); + } +} + +} |