#include "tdockwindows.h"
#include <QBoxLayout>
#include <QVBoxLayout>
#include <QRegion>
#include <QPainter>
#include <QStyleOption>
#include <QMouseEvent>
//----------------------------------------
//-------------------
// Decorations
//-------------------
class TDockDecoAllocator : public DockDecoAllocator {
DockSeparator *newSeparator(DockLayout *owner, bool orientation,
Region *parentRegion) override;
DockPlaceholder *newPlaceholder(DockWidget *owner, Region *r, int idx,
int attributes) override;
};
//========================================================================
//-----------------------
// TMainWindow
//-----------------------
TMainWindow::TMainWindow(QWidget *parent, Qt::WindowFlags flags)
: QWidget(parent, flags) {
// Delete on close
setAttribute(Qt::WidgetAttribute(Qt::WA_DeleteOnClose));
// Set a vertical layout to include menu bars
QVBoxLayout *vlayout = new QVBoxLayout;
vlayout->setMargin(0);
vlayout->setSpacing(4);
setLayout(vlayout);
// Allocate the dock layout
m_layout = new DockLayout;
m_layout->setContentsMargins(0, 0, 0, 0);
m_layout->setSpacing(8);
m_layout->setDecoAllocator(new TDockDecoAllocator);
vlayout->addLayout(m_layout);
vlayout->setAlignment(m_layout, Qt::AlignTop);
show(); // NOTA: E' NECESSARIO MOSTRARE LA FINESTRA, prima di dockare
// qualcosa (altrimenti non viene fatto
// l'update della geometria della main window, e il contentsRect del layout
// viene sballato!!).
}
//----------------------------------------
TMainWindow::~TMainWindow() {}
//----------------------------------------
//! Adds input \b item to this TMainWindow. If item was already
//! assigned to \b this TMainWindow, nothing happens.
void TMainWindow::addDockWidget(TDockWidget *item) {
if (!m_layout->find(item)) m_layout->addWidget(item);
}
//----------------------------------------
void TMainWindow::removeDockWidget(TDockWidget *item) {
m_layout->removeWidget(item);
}
//----------------------------------------
// NOTE: Unlike QMainWindow::addToolBar, we only allow one
// fixed-size undockable menu bar at top of the dock layout.
void TMainWindow::setMenuWidget(QWidget *menubar) {
if (menubar) {
QVBoxLayout *vlayout = static_cast<QVBoxLayout *>(layout());
// If necessary, remove current menu bar
if (m_menu && m_menu != menubar) vlayout->removeWidget(m_menu);
vlayout->insertWidget(0, menubar);
}
}
//----------------------------------------
void TMainWindow::setDecoAllocator(DockDecoAllocator *allocator) {
m_layout->setDecoAllocator(allocator);
}
//----------------------------------------
//! Sets global thickness of separators between dock widget.
void TMainWindow::setSeparatorsThickness(int thick) {
if (thick > 0) {
m_layout->setSpacing(thick);
m_layout->redistribute();
}
}
//----------------------------------------
void TMainWindow::resizeEvent(QResizeEvent *event) { m_layout->redistribute(); }
//========================================================================
//-------------------
// TDockWidget
//-------------------
//! Constructs a TDockWidget with given parent and window flags. If parent is
//! a TMainWindow, then the constructed dock widget is assigned to it
//! (addDockWidget'd).
//! TDockWidgets are always floating at construction.
TDockWidget::TDockWidget(QWidget *parent, Qt::WindowFlags flags)
: DockWidget(parent, flags), m_widget(0), m_titlebar(0), m_margin(5) {
setAutoFillBackground(false);
// setFrameStyle(QFrame::StyledPanel);
QBoxLayout *layout = new QBoxLayout(QBoxLayout::TopToBottom);
layout->setSpacing(0);
setLayout(layout);
// Check if parent is a TMainWindow class
TMainWindow *parentMain = qobject_cast<TMainWindow *>(parent);
if (parentMain) parentMain->addDockWidget(this);
setDecoAllocator(new TDockDecoAllocator);
}
//----------------------------------------
TDockWidget::TDockWidget(const QString &title, QWidget *parent,
Qt::WindowFlags flags)
: DockWidget(parent, flags), m_widget(0), m_titlebar(0), m_margin(5) {
setWindowTitle(title);
QBoxLayout *layout = new QBoxLayout(QBoxLayout::TopToBottom);
layout->setSpacing(0);
setLayout(layout);
}
//----------------------------------------
void TDockWidget::setTitleBarWidget(QWidget *titlebar) {
if (titlebar) {
QBoxLayout *boxLayout = static_cast<QBoxLayout *>(layout());
if (m_titlebar && m_titlebar != titlebar)
boxLayout->removeWidget(m_titlebar);
boxLayout->insertWidget(0, titlebar);
// Set top/left-aligned
boxLayout->setAlignment(
titlebar, getOrientation() == vertical ? Qt::AlignTop : Qt::AlignLeft);
m_titlebar = titlebar;
if (m_floating) setFloatingAppearance();
}
}
//----------------------------------------
void TDockWidget::windowTitleEvent(QEvent *e) {
if (m_titlebar) m_titlebar->update();
}
//----------------------------------------
void TDockWidget::setWidget(QWidget *widget) {
if (widget) {
QBoxLayout *boxLayout = static_cast<QBoxLayout *>(layout());
if (m_widget && m_widget != widget) boxLayout->removeWidget(m_widget);
boxLayout->insertWidget(1, widget);
widget->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
m_widget = widget;
}
}
//----------------------------------------
void TDockWidget::setFloatingAppearance() {
if (m_titlebar) {
// If has a custom title bar, impose a margin to the layout
// to provide a frame.
layout()->setMargin(m_margin);
if (!m_floating) // was docked
{
// Adding margin to extremal sizes
int addition = 2 * m_margin;
setMinimumSize(
QSize(minimumWidth() + addition, minimumHeight() + addition));
setMaximumSize(
QSize(maximumWidth() + addition, maximumHeight() + addition));
}
}
// else
// setWindowFlags(Qt::Tool);
}
//----------------------------------------
void TDockWidget::setDockedAppearance() {
// No layout margin is visible when docked
layout()->setMargin(0);
if (m_floating) // was floating
{
// Removing margin from extremal sizes
int addition = 2 * m_margin;
setMinimumSize(
QSize(minimumWidth() - addition, minimumHeight() - addition));
setMaximumSize(
QSize(maximumWidth() - addition, maximumHeight() - addition));
}
}
//----------------------------------------
bool TDockWidget::isDragGrip(QPoint p) {
if (!m_titlebar) return DockWidget::isDragGrip(p);
return m_titlebar->geometry().contains(p);
}
//----------------------------------------
int TDockWidget::isResizeGrip(QPoint p) {
if (m_dragging || (!m_titlebar && m_floating)) return 0;
int marginType = 0;
QRect geom(QPoint(0, 0), QPoint(width(), height()));
int margin = layout()->margin();
QRect contGeom(geom.adjusted(margin, margin, -margin, -margin));
if (geom.contains(p) && !contGeom.contains(p)) {
if (p.x() < 15) marginType |= leftMargin;
if (p.y() < 15) marginType |= topMargin;
if (p.x() > width() - 15) marginType |= rightMargin;
if (p.y() > height() - 15) marginType |= bottomMargin;
}
return marginType;
}
//----------------------------------------
//! Currently working only for \b status = true. If you need to
//! dock a TDockWidget, you \b must specify a dock location by either
//! choosing a placeholder or identifying the Region and insertion index,
//! and then running 'parentLayout()->dockItem(..)'.
void TDockWidget::setFloating(bool status) {
if (status) {
setWindowFlags(Qt::Tool | Qt::FramelessWindowHint);
if (!m_floating) parentLayout()->undockItem(this);
}
}
//----------------------------------------
//! Specifies the orientation of the dock widget. It can
//! be either \b vertical (default) or \b horizontal, meaning that
//! the titlebar is laid respectively at the top or left side of
//! content widget. Directly speaking, it is equivalent to setting the
//! Qt's QDockWidget::DockWidgetVerticalTitleBar feature.
void TDockWidget::setOrientation(bool direction) {
QBoxLayout *boxLayout = static_cast<QBoxLayout *>(layout());
QBoxLayout::Direction boxDirection;
if (direction == vertical) {
boxLayout->setAlignment(m_titlebar, Qt::AlignTop);
boxDirection = QBoxLayout::TopToBottom;
} else {
boxLayout->setAlignment(m_titlebar, Qt::AlignLeft);
boxDirection = QBoxLayout::LeftToRight;
}
boxLayout->setDirection(boxDirection);
}
//----------------------------------------
bool TDockWidget::getOrientation() const {
QBoxLayout *boxLayout = static_cast<QBoxLayout *>(layout());
return (boxLayout->direction() == QBoxLayout::TopToBottom) ? vertical
: horizontal;
}
//----------------------------------------
//! Maximizes \b this TDockWidget, if docked.
void TDockWidget::setMaximized(bool status) {
parentLayout()->setMaximized(this, status);
}
//----------------------------------------
QSize TDockWidget::getDockedMinimumSize() {
int addedSize = 2 * m_margin;
return m_floating ? minimumSize() -= QSize(addedSize, addedSize)
: minimumSize();
}
//----------------------------------------
QSize TDockWidget::getDockedMaximumSize() {
int addedSize = 2 * m_margin;
return m_floating ? maximumSize() -= QSize(addedSize, addedSize)
: maximumSize();
}
//========================================================================
//--------------------------
// Custom Decorations
//--------------------------
class TDockSeparator : public DockSeparator {
public:
TDockSeparator(DockLayout *owner, bool orientation, Region *parentRegion)
: DockSeparator(owner, orientation, parentRegion) {}
void paintEvent(QPaintEvent *pe) override;
};
//----------------------------------------
class TDockPlaceholder : public DockPlaceholder {
QWidget *m_associated[3];
public:
TDockPlaceholder(DockWidget *owner, Region *r, int idx, int attributes);
~TDockPlaceholder();
void buildGeometry() override;
void showEvent(QShowEvent *se) override;
void hideEvent(QHideEvent *he) override;
};
//----------------------------------------
TDockPlaceholder::TDockPlaceholder(DockWidget *owner, Region *r, int idx,
int attributes)
: DockPlaceholder(owner, r, idx, attributes) {
setAutoFillBackground(true);
setObjectName("TDockPlaceholder");
setWindowOpacity(0.8);
}
//----------------------------------------
TDockPlaceholder::~TDockPlaceholder() {
if (isRoot()) {
delete m_associated[0];
delete m_associated[1];
delete m_associated[2];
}
}
//----------------------------------------
inline void TDockPlaceholder::buildGeometry() {
DockPlaceholder::buildGeometry();
if (isRoot()) {
// Solution 2: Set associated widgets
QRect geom(geometry());
QSize horSize(geom.width(), 6);
QSize vertSize(6, geom.height() + 12);
setGeometry(QRect(geom.topLeft() - QPoint(6, 6), vertSize));
m_associated[0] = new TDockPlaceholder(0, 0, 0, 0);
m_associated[0]->setGeometry(QRect(geom.topLeft() - QPoint(0, 6), horSize));
m_associated[1] = new TDockPlaceholder(0, 0, 0, 0);
m_associated[1]->setGeometry(
QRect(geom.topRight() + QPoint(1, -6), vertSize));
m_associated[2] = new TDockPlaceholder(0, 0, 0, 0);
m_associated[2]->setGeometry(
QRect(geom.bottomLeft() + QPoint(0, 1), horSize));
}
}
//-------------------------------------
void TDockPlaceholder::showEvent(QShowEvent *se) {
if (isRoot()) {
// Show associated widgets
m_associated[0]->show();
m_associated[1]->show();
m_associated[2]->show();
}
}
//-------------------------------------
void TDockPlaceholder::hideEvent(QHideEvent *he) {
if (isRoot()) {
// Show associated widgets
m_associated[0]->hide();
m_associated[1]->hide();
m_associated[2]->hide();
}
}
//-------------------------------------
void TDockSeparator::paintEvent(QPaintEvent *pe) {
QPainter p(this);
QStyleOption opt(0);
opt.state = (getOrientation() == Region::horizontal)
? QStyle::State_None
: QStyle::State_Horizontal;
/*if (w->isEnabled())
opt.state |= QStyle::State_Enabled;
if (o != Qt::Horizontal)
opt.state |= QStyle::State_Horizontal;
if (mouse_over)
opt.state |= QStyle::State_MouseOver;*/
opt.rect = QRect(QPoint(0, 0), QSize(geometry().size()));
opt.palette = palette();
style()->drawPrimitive(QStyle::PE_IndicatorDockWidgetResizeHandle, &opt, &p,
this);
p.end();
}
//-------------------------------------
DockSeparator *TDockDecoAllocator::newSeparator(DockLayout *owner,
bool orientation,
Region *parentRegion) {
return new TDockSeparator(owner, orientation, parentRegion);
}
//-------------------------------------
DockPlaceholder *TDockDecoAllocator::newPlaceholder(DockWidget *owner,
Region *r, int idx,
int attributes) {
return new TDockPlaceholder(owner, r, idx, attributes);
}
//-------------------------------------
void TDockWidget::selectDockPlaceholder(QMouseEvent *me) {
if (m_placeholders.size() && m_placeholders[0]->isRoot()) {
DockPlaceholder *selected = 0;
QPoint pos = parentWidget()->mapFromGlobal(me->globalPos());
if (parentLayout()->contentsRect().contains(pos))
selected = m_placeholders[0];
if (m_selectedPlace != selected) {
if (m_selectedPlace) m_selectedPlace->hide();
if (selected) selected->show();
}
m_selectedPlace = selected;
} else
DockWidget::selectDockPlaceholder(me);
}