diff options
Diffstat (limited to 'examples/layouts/anchorlayout/window.cpp')
| -rw-r--r-- | examples/layouts/anchorlayout/window.cpp | 555 |
1 files changed, 0 insertions, 555 deletions
diff --git a/examples/layouts/anchorlayout/window.cpp b/examples/layouts/anchorlayout/window.cpp deleted file mode 100644 index cab1b60..0000000 --- a/examples/layouts/anchorlayout/window.cpp +++ /dev/null @@ -1,555 +0,0 @@ -#include "window.h" -#include "layoutitem.h" -#include "scene.h" -#include "widgetchooserdelegate.h" - -#include <QtGui/qgraphicswidget.h> -#include <QtGui/qgraphicsanchorlayout.h> - -static QGraphicsLayoutItem *layoutItem(const QVariant &data) -{ - return reinterpret_cast<QGraphicsLayoutItem *>(qVariantValue<void *>(data)); -} - -static QString nodeName(QGraphicsLayoutItem *item) -{ - QString str = item->isLayout() ? QLatin1String("layout") : item->graphicsItem()->data(0).toString(); - str.replace(QLatin1Char(' '), QLatin1Char('_')); - return str; -} - -#define _QUOTEMACRO(x) #x -#define QUOTEMACRO(x) _QUOTEMACRO(x) - -Window::Window(const QStringList &arguments, QWidget *parent) - : QMainWindow(parent), m_inAddAnchor(false) -{ - m_ui.setupUi(this); - m_scene = new Scene; - - m_ui.graphicsView->setScene(m_scene); - connect(m_scene, SIGNAL(focusItemChanged(QGraphicsItem*)), this, SLOT(scene_focusItemChanged(QGraphicsItem*))); - - m_window = new QGraphicsWidget(0, Qt::Window); - m_scene->addItem(m_window); - m_layout = new QGraphicsAnchorLayout(m_window); - m_window->setLayout(m_layout); - m_window->resize(400, 300); - - findLayoutFiles(); - - WidgetChooserDelegate *delegate = new WidgetChooserDelegate(&m_layoutItems, m_layout, m_ui.anchors); - m_ui.anchors->setItemDelegate(delegate); - - if (arguments.count() >= 2) { - QString fileName = QString::fromAscii("%1/xml/%2.xml").arg(QUOTEMACRO(PRO_FILE_PWD), arguments.at(1)); - if (!loadLayout(fileName, m_layout)) { - QMessageBox::warning(this, tr("Not found"), tr("Could not find %1").arg(fileName)); - } - } -} - -void Window::findLayoutFiles() -{ - m_ignoreCurrentLayoutChange = true; - QLatin1String s(QUOTEMACRO(PRO_FILE_PWD)"/xml"); - QDirIterator it(s); - while (it.hasNext()) { - it.next(); - QFileInfo fi = it.fileInfo(); - QString baseName = fi.baseName(); - if (!baseName.isEmpty()) { // avoid "." and ".." - m_ui.layouts->addItem(baseName); - } - } - m_ignoreCurrentLayoutChange = false; -} - -void Window::on_layouts_currentRowChanged(int row) -{ - if (m_ignoreCurrentLayoutChange) - return; - - QListWidgetItem *item = m_ui.layouts->item(row); - if (item) { - QString fileName = QString::fromAscii("%1/xml/%2.xml").arg(QUOTEMACRO(PRO_FILE_PWD), item->text()); - if (!loadLayout(fileName, m_layout)) { - qWarning("could not find %s", qPrintable(fileName)); - } - } -} - -void Window::on_anchors_cellChanged(int row, int column) -{ - Q_UNUSED(row); - Q_UNUSED(column); - if (!m_inAddAnchor) - rebuildLayout(); -} - - -void Window::on_pbAddAnchor_clicked(bool) -{ - addAnchorRow(); -} - -void Window::on_actionAdd_item_triggered(bool ) -{ - addItem(); -} - -void Window::on_actionSave_layout_triggered(bool ) -{ - QString fileName = QFileDialog::getSaveFileName(this, tr("Save layout"), QLatin1String(QUOTEMACRO(PRO_FILE_PWD)"/xml"), QLatin1String("*.xml")); - if (!fileName.isEmpty()) - saveLayout(fileName); -} - -void Window::on_itemName_textEdited(const QString & ) -{ - updateItem(); -} - -void Window::on_itemMinW_valueChanged(double ) -{ - updateItem(); -} - -void Window::on_itemMinH_valueChanged(double ) -{ - updateItem(); -} - -void Window::on_itemPrefW_valueChanged(double ) -{ - updateItem(); -} - -void Window::on_itemPrefH_valueChanged(double ) -{ - updateItem(); -} - -void Window::on_itemMaxW_valueChanged(double ) -{ - updateItem(); -} - -void Window::on_itemMaxH_valueChanged(double ) -{ - updateItem(); -} - -void Window::scene_focusItemChanged(QGraphicsItem *item) -{ - bool isItemValid = item && item->isWidget(); - m_ui.groupBox->setEnabled(isItemValid); - QGraphicsLayoutItem *newCurrentItem = m_currentItem; - m_currentItem = 0; - if (isItemValid) { - QGraphicsWidget *w = static_cast<QGraphicsWidget *>(item); - setItemData(item->data(0).toString(), w->minimumSize(), w->preferredSize(), w->maximumSize()); - newCurrentItem = w; - } else { - setItemData(QString(), QSizeF(), QSizeF(), QSizeF()); - } - m_currentItem = newCurrentItem; -} - -void Window::updateItem() -{ - if (!m_currentItem) - return; - if (QGraphicsItem *gi = m_currentItem->graphicsItem()) { - gi->setData(0, m_ui.itemName->text()); - gi->update(); - } - QSizeF min(m_ui.itemMinW->value(), m_ui.itemMinH->value()); - QSizeF pref(m_ui.itemPrefW->value(), m_ui.itemPrefH->value()); - QSizeF max(m_ui.itemMaxW->value(), m_ui.itemMaxH->value()); - - if (min.isValid()) - m_currentItem->setMinimumSize(min); - if (pref.isValid()) - m_currentItem->setPreferredSize(pref); - if (max.isValid()) - m_currentItem->setMaximumSize(max); -} - -void Window::rebuildLayout() -{ - int i; - for (i = m_layout->count(); i > 0; --i) { - m_layout->removeAt(0); - } - - int rc = m_ui.anchors->rowCount(); - for (i = 0; i < rc; ++i) { - bool ok; - - QGraphicsLayoutItem *startItem = layoutItemAt(m_ui.anchors->model(), i, 0); - if (!startItem) - continue; - Qt::AnchorPoint startEdge = (Qt::AnchorPoint)(m_ui.anchors->item(i, 1)->data(Qt::UserRole).toInt(&ok)); - if (!ok) - continue; - QGraphicsLayoutItem *endItem = layoutItemAt(m_ui.anchors->model(), i, 2); - if (!endItem) - continue; - Qt::AnchorPoint endEdge = (Qt::AnchorPoint)(m_ui.anchors->item(i, 3)->data(Qt::UserRole).toInt(&ok)); - if (!ok) - continue; - - m_layout->addAnchor(startItem, startEdge, endItem, endEdge); - } -} - -void Window::setItemData(const QString &name, const QSizeF &min, const QSizeF &pref, const QSizeF &max) -{ - m_ui.itemName->setText(name); - m_ui.itemMinW->setValue(min.width()); - m_ui.itemMinH->setValue(min.height()); - m_ui.itemPrefW->setValue(pref.width()); - m_ui.itemPrefH->setValue(pref.height()); - m_ui.itemMaxW->setValue(max.width()); - m_ui.itemMaxH->setValue(max.height()); -} - -QGraphicsLayoutItem *Window::addItem(const QString &name) -{ - int rc = m_layoutItems.count(); - QString effectiveName = name.isEmpty() ? QString::fromAscii("item %1").arg(rc + 1) : name; - QGraphicsLayoutItem *layoutItem = new LayoutItem(effectiveName, m_window); - m_layoutItems.append(layoutItem); - m_scene->setFocusItem(layoutItem->graphicsItem()); - return layoutItem; -} - -static const char *strEdges[] = {"Left", - "HCenter", - "Right", - "Top", - "VCenter", - "Bottom"}; - -void Window::setAnchorData(QGraphicsLayoutItem *startItem, const QString &startName, Qt::AnchorPoint startEdge, - QGraphicsLayoutItem *endItem, const QString &endName, Qt::AnchorPoint endEdge, int row /*= -1*/) -{ - if (row == -1) { - row = m_ui.anchors->rowCount(); - m_ui.anchors->insertRow(row); - } - m_inAddAnchor = true; - - QTableWidgetItem *item = new QTableWidgetItem; - item->setData(Qt::UserRole, qVariantFromValue<void*>(reinterpret_cast<void*>(startItem))); - item->setData(Qt::DisplayRole, startName); - m_ui.anchors->setItem(row, 0, item); - - item = new QTableWidgetItem; - item->setData(Qt::UserRole, int(startEdge)); - item->setData(Qt::DisplayRole, QLatin1String(strEdges[startEdge])); - m_ui.anchors->setItem(row, 1, item); - - item = new QTableWidgetItem; - item->setData(Qt::UserRole, qVariantFromValue<void*>(reinterpret_cast<void*>(endItem))); - item->setData(Qt::DisplayRole, endName); - m_ui.anchors->setItem(row, 2, item); - - item = new QTableWidgetItem; - item->setData(Qt::UserRole, int(endEdge)); - item->setData(Qt::DisplayRole, QLatin1String(strEdges[endEdge])); - m_ui.anchors->setItem(row, 3, item); - - item = new QTableWidgetItem; - item->setData(Qt::DisplayRole, 6); - m_ui.anchors->setItem(row, 4, item); - - item = new QTableWidgetItem; - item->setData(Qt::DisplayRole, 6); - m_ui.anchors->setItem(row, 5, item); - m_inAddAnchor = false; - -} - -void Window::addAnchorRow() -{ - int rc = m_ui.anchors->rowCount(); - QGraphicsLayoutItem *defaultLayoutItem = m_layout; - if (m_layoutItems.count() > 0) { - defaultLayoutItem = m_layoutItems.at(0); - } - - m_ui.anchors->insertRow(rc); - - if (defaultLayoutItem) { - QString defaultName = defaultLayoutItem->isLayout() ? - QLatin1String("layout") : - defaultLayoutItem->graphicsItem()->data(0).toString(); - setAnchorData(defaultLayoutItem, defaultName, Qt::AnchorRight, defaultLayoutItem, defaultName, Qt::AnchorLeft, rc); - rebuildLayout(); - } -} - -QGraphicsLayoutItem *Window::layoutItemAt(QAbstractItemModel *model, int row, int column /*= 0*/) -{ - int rc = model->rowCount(); - QGraphicsLayoutItem *item = 0; - if (row < rc) { - QVariant data = model->data(model->index(row, column), Qt::UserRole); - if (data.isValid()) { - item = layoutItem(data); - } - } - return item; -} - -bool Window::saveLayout(const QString& fileName) -{ - bool ok; - QFile out(fileName); - ok = out.open(QIODevice::WriteOnly); - if (ok) { - QXmlStreamWriter xml(&out); - xml.setAutoFormatting(true); - xml.writeStartDocument(); - xml.writeStartElement(QLatin1String("anchorlayout")); - int i; - for (i = 0; i < m_layoutItems.count(); ++i) { - QGraphicsLayoutItem *item = m_layoutItems.at(i); - xml.writeStartElement(QLatin1String("item")); - QString name = nodeName(item); - if (name == QLatin1String("layout")) - name = QLatin1String("this"); - xml.writeAttribute(QLatin1String("id"), name); - for (int p = 0; p < 3; ++p) { - const char *propertyNames[] = {"minimumSize", "preferredSize", "maximumSize"}; - typedef QSizeF (QGraphicsLayoutItem::*QGLISizeGetter)(void) const; - QGLISizeGetter sizeGetters[] = { &QGraphicsLayoutItem::minimumSize, - &QGraphicsLayoutItem::preferredSize, - &QGraphicsLayoutItem::maximumSize}; - QSizeF size = ((*item).*(sizeGetters[p])) (); - xml.writeStartElement(QLatin1String("property")); - xml.writeAttribute(QLatin1String("name"), QLatin1String(propertyNames[p])); - xml.writeStartElement(QLatin1String("size")); - xml.writeAttribute(QLatin1String("width"), QString::number(size.width())); - xml.writeAttribute(QLatin1String("height"), QString::number(size.height())); - xml.writeEndElement(); - xml.writeEndElement(); - } - xml.writeEndElement(); - } - - QHash<int, QString> edgeString; - for (i = 0; i < sizeof(strEdges)/sizeof(char*); ++i) { - edgeString.insert(i, QLatin1String(strEdges[i])); - } - int rc = m_ui.anchors->rowCount(); - for (i = 0; i < rc; ++i) { - xml.writeStartElement(QLatin1String("anchor")); - bool ok; - - QGraphicsLayoutItem *startItem = layoutItemAt(m_ui.anchors->model(), i, 0); - if (!startItem) - continue; - Qt::AnchorPoint startEdge = (Qt::AnchorPoint)(m_ui.anchors->item(i, 1)->data(Qt::UserRole).toInt(&ok)); - if (!ok) - continue; - QGraphicsLayoutItem *endItem = layoutItemAt(m_ui.anchors->model(), i, 2); - if (!endItem) - continue; - Qt::AnchorPoint endEdge = (Qt::AnchorPoint)(m_ui.anchors->item(i, 3)->data(Qt::UserRole).toInt(&ok)); - if (!ok) - continue; - - QString strStart = nodeName(startItem); - if (strStart == QLatin1String("layout")) - strStart = QLatin1String("this"); - xml.writeAttribute(QLatin1String("first"), QString::fromAscii("%1.%2").arg(strStart, edgeString.value(startEdge))); - - QString strEnd = nodeName(endItem); - if (strEnd == QLatin1String("layout")) - strEnd = QLatin1String("this"); - xml.writeAttribute(QLatin1String("second"), QString::fromAscii("%1.%2").arg(strEnd, edgeString.value(endEdge))); - - xml.writeEndElement(); - } - - xml.writeEndElement(); - xml.writeEndDocument(); - out.close(); - } - return ok; -} - -static bool parseProperty(QXmlStreamReader *xml, QString *name, QSizeF *size) -{ - QString propName = xml->attributes().value("name").toString(); - QSizeF sz; - while (!xml->atEnd()) { - xml->readNext(); - if (xml->isStartElement() && xml->name() == QLatin1String("size")) { - QXmlStreamAttributes attrs = xml->attributes(); - QString sw = attrs.value("width").toString(); - QString sh = attrs.value("height").toString(); - bool ok; - float w = sw.toFloat(&ok); - if (ok) { - sz.setWidth(w); - } - - float h = sw.toFloat(&ok); - if (ok) { - sz.setHeight(h); - } - - } - if (xml->isEndElement() && xml->name() == QLatin1String("property")) { - if (name && size && sz.isValid()) { - *name = propName; - *size = sz; - return true; - } - } - } - return false; -} - -static bool parseEdge(const QString &itemEdge, QByteArray *id, Qt::AnchorPoint *edge) -{ - QStringList item_edge = itemEdge.split(QLatin1Char('.')); - bool ok = item_edge.count() == 2; - if (ok) { - QByteArray strEdge = item_edge.at(1).toAscii().toLower(); - if (strEdge == "left") { - *edge = Qt::AnchorLeft; - } else if (strEdge == "hcenter") { - *edge = Qt::AnchorHorizontalCenter; - } else if (strEdge == "right") { - *edge = Qt::AnchorRight; - } else if (strEdge == "top") { - *edge = Qt::AnchorTop; - } else if (strEdge == "vcenter") { - *edge = Qt::AnchorVerticalCenter; - } else if (strEdge == "bottom") { - *edge = Qt::AnchorBottom; - } else { - ok = false; - } - if (ok) - *id = item_edge.at(0).toAscii(); - } - return ok; -} - -bool Window::loadLayout(const QString& fileName, QGraphicsAnchorLayout *layout) -{ - QFile input(fileName); - bool ok = input.open(QIODevice::ReadOnly | QIODevice::Text); - if (ok) { - int i; - for (i = 0; i < m_layoutItems.count(); ++i) { - QGraphicsLayoutItem *item = m_layoutItems.at(i); - delete item; - } - - m_layoutItems.clear(); - m_ui.anchors->setRowCount(0); - - QLatin1String str_anchorlayout("anchorlayout"); - QLatin1String str_item("item"); - QLatin1String str_property("property"); - QXmlStreamReader xml(&input); - - int level = 0; - QHash<QByteArray, QGraphicsLayoutItem*> hash; - QString item_id; - QSizeF min, pref, max; - - while (!xml.atEnd()) { - QXmlStreamReader::TokenType token = xml.readNext(); - switch (token) { - case QXmlStreamReader::StartDocument: - break; - case QXmlStreamReader::StartElement: - if (level == 0 && xml.name() == str_anchorlayout) { - - } else if (level == 1 && xml.name() == str_item) { - item_id = xml.attributes().value("id").toString(); - } else if (level == 1 && xml.name() == QLatin1String("anchor")) { - QXmlStreamAttributes attrs = xml.attributes(); - QString first = attrs.value("first").toString(); - QString second = attrs.value("second").toString(); - QByteArray startID; - Qt::AnchorPoint startEdge; - QGraphicsLayoutItem *startItem = 0; - if (parseEdge(first, &startID, &startEdge)) { - if (startID == "this") { - startID = "layout"; - startItem = layout; - } else { - startItem = hash.value(startID); - } - } else { - qWarning("%s is not a valid edge description", qPrintable(first)); - break; - } - - QByteArray endID; - Qt::AnchorPoint endEdge; - QGraphicsLayoutItem *endItem = 0; - if (parseEdge(second, &endID, &endEdge)) { - if (endID == "this") { - endID = "layout"; - endItem = layout; - } else { - endItem = hash.value(endID); - } - } else { - qWarning("%s is not a valid edge description", qPrintable(second)); - break; - } - setAnchorData( startItem, startID, startEdge, - endItem, endID, endEdge, -1); - } else if (level == 2 && xml.name() == str_property) { - QString name; - QSizeF size; - if (parseProperty(&xml, &name, &size)) { - if (name == QLatin1String("minimumSize")) { - min = size; - } else if (name == QLatin1String("preferredSize")) { - pref = size; - } else if (name == QLatin1String("maximumSize")) { - max = size; - } - break; - } - } else { - --level; - } - ++level; - break; - case QXmlStreamReader::EndElement: - if (xml.name() == str_anchorlayout) { - } - if (xml.name() == str_item) { - QGraphicsLayoutItem *item = addItem(item_id); - item->setMinimumSize(min); - item->setPreferredSize(pref); - item->setMaximumSize(max); - hash.insert(item_id.toAscii(), item); - } - --level; - break; - } - } - if (xml.hasError()) { - // do error handling - qWarning("%s", qPrintable(xml.errorString())); - } - input.close(); - } - if (ok) - rebuildLayout(); - return ok; -} |