author | nemo |
Mon, 27 Dec 2010 17:34:34 -0500 | |
changeset 4735 | 08749f5127b9 |
parent 4586 | 4ba4f021070f |
child 4976 | 088d40d8aba2 |
permissions | -rw-r--r-- |
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#include <QFile> |
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#include <QMessageBox> |
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#include "drawmapwidget.h" |
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Add QAspectRatioLayout borrowed from http://wiki.forum.nokia.com/index.php/CS001309_-_Maintaining_square_form_for_a_widget_in_Qt to maintain width == height * 2 aspect ratio for map drawing widget
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DrawMapWidget::DrawMapWidget(QWidget *parent) : |
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QWidget(parent), |
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ui(new Ui::DrawMapWidget) |
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{ |
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ui->setupUi(this); |
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m_scene = 0; |
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} |
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|
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Add QAspectRatioLayout borrowed from http://wiki.forum.nokia.com/index.php/CS001309_-_Maintaining_square_form_for_a_widget_in_Qt to maintain width == height * 2 aspect ratio for map drawing widget
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DrawMapWidget::~DrawMapWidget() |
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Add QAspectRatioLayout borrowed from http://wiki.forum.nokia.com/index.php/CS001309_-_Maintaining_square_form_for_a_widget_in_Qt to maintain width == height * 2 aspect ratio for map drawing widget
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{ |
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delete ui; |
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} |
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void DrawMapWidget::changeEvent(QEvent *e) |
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{ |
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QWidget::changeEvent(e); |
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switch (e->type()) { |
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case QEvent::LanguageChange: |
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ui->retranslateUi(this); |
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break; |
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default: |
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break; |
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} |
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} |
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Add QAspectRatioLayout borrowed from http://wiki.forum.nokia.com/index.php/CS001309_-_Maintaining_square_form_for_a_widget_in_Qt to maintain width == height * 2 aspect ratio for map drawing widget
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void DrawMapWidget::setScene(DrawMapScene * scene) |
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{ |
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ui->graphicsView->setScene(scene); |
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m_scene = scene; |
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} |
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|
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Add QAspectRatioLayout borrowed from http://wiki.forum.nokia.com/index.php/CS001309_-_Maintaining_square_form_for_a_widget_in_Qt to maintain width == height * 2 aspect ratio for map drawing widget
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void DrawMapWidget::resizeEvent(QResizeEvent * event) |
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{ |
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Q_UNUSED(event); |
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if(ui->graphicsView && ui->graphicsView->scene()) |
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ui->graphicsView->fitInView(ui->graphicsView->scene()->sceneRect(), Qt::KeepAspectRatio); |
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} |
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Make use of showEvent, so there's no more need in manual resizing of draw map widget
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Make use of showEvent, so there's no more need in manual resizing of draw map widget
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void DrawMapWidget::showEvent(QShowEvent * event) |
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{ |
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Q_UNUSED(event); |
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|
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resizeEvent(0); |
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} |
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void DrawMapWidget::undo() |
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{ |
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if(m_scene) m_scene->undo(); |
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} |
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void DrawMapWidget::clear() |
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{ |
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if(m_scene) m_scene->clearMap(); |
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} |
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void DrawMapWidget::save(const QString & fileName) |
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{ |
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if(m_scene) |
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{ |
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QFile file(fileName); |
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|
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if(!file.open(QIODevice::WriteOnly)) |
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QMessageBox::warning(this, tr("File error"), tr("Cannot open file '%1' for writing").arg(fileName)); |
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else |
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file.write(qCompress(m_scene->encode()).toBase64()); |
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} |
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} |
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|
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void DrawMapWidget::load(const QString & fileName) |
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{ |
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if(m_scene) |
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{ |
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QFile f(fileName); |
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|
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if(!f.open(QIODevice::ReadOnly)) |
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QMessageBox::warning(this, tr("File error"), tr("Cannot read file '%1'").arg(fileName)); |
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else |
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m_scene->decode(qUncompress(QByteArray::fromBase64(f.readAll()))); |
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} |
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} |