// TnzQt includes
#include "toonzqt/menubarcommand.h"
#include "docklayout.h"
// Qt includes
#include <QEvent>
#include <QMouseEvent>
#include <QApplication>
#include <QDesktopWidget>
// STD includes
#include <assert.h>
#include <math.h>
#include <algorithm>
//========================================================
//-----------------------
// Dock Lock Check
//-----------------------
DockingCheck *DockingCheck::instance()
{
static DockingCheck _instance;
return &_instance;
}
//-------------------------------------
void DockingCheck::setToggle(QAction *toggle)
{
m_toggle = toggle;
}
//-------------------------------------
void DockingCheck::setIsEnabled(bool on)
{
m_enabled = on;
if (m_toggle)
m_toggle->setChecked(on);
}
//========================================================
class DockingToggleCommand : public MenuItemHandler
{
public:
DockingToggleCommand() : MenuItemHandler("MI_DockingCheck") {}
void execute()
{
DockingCheck *dc = DockingCheck::instance();
dc->setIsEnabled(!dc->isEnabled());
}
} dockingToggleCommand;
//========================================================
//------------------------
// Geometry inlines
//------------------------
//!Calculates infinite-norm distance between points \b a and \b b.
inline int absoluteDistance(const QPoint &a, const QPoint &b)
{
return std::max(abs(a.x() - b.x()), abs(a.y() - b.y()));
}
//-------------------------------------
//Il metodo QRectF::toRect pare che faccia la cosa commentata. Ovviamente non e' la cosa piu' simpatica - considera
//che in questo modo i bordi del rect di input *non vengono approssimati alle piu' vicine coordinate intere*!
// es: topLeft= (1/3, 1/3); width= 4/3, height= 4/3 => left= top= right= bottom= 0.
inline QRect toRect(const QRectF &rect)
{
//return QRect(qRound(rect.left()), qRound(rect.top()), qRound(rect.width()), qRound(rect.height()));
return QRect(rect.topLeft().toPoint(), rect.bottomRight().toPoint() -= QPoint(1, 1));
}
//========================================================
//Forward declaration
namespace
{
QDesktopWidget *desktop;
void getClosestAvailableMousePosition(QPoint &globalPos);
}
//========================================================
//----------------------
// Layout inlines
//----------------------
inline void DockLayout::update()
{
//E' necessario?
applyGeometry();
}
//========================================================
//------------------------------
// My Dock Widget Methods
//------------------------------
//!Constructs a dock Widget; every newly constructed dock widget is floating (i.e. not docked
//!into the layout).
DockWidget::DockWidget(QWidget *parent, Qt::WindowFlags flags)
: QWidget(parent, flags), m_dragging(false), m_resizing(false), m_floating(true), m_undocking(false),
m_parentLayout(0), m_selectedPlace(0), m_maximized(0)
{
//Don't let this widget inherit the parent's backround color
//setAutoFillBackground(true);
//setBackgroundRole(QPalette::Background);
//setAttribute(Qt::WA_DeleteOnClose); //Since Toonz just hides panels...
setAttribute(Qt::WA_Hover);
//Set default minimum and maximum sizes.
setMinimumSize(QSize(50, 50));
setMaximumSize(QSize(10000, 10000));
m_decoAllocator = new DockDecoAllocator;
//Make sure the desktop is initialized and known
desktop = qApp->desktop();
}
//-------------------------------------
DockWidget::~DockWidget()
{
//Since close button lies on the title bar, make sure mouse is released if that is pressed.
if (QWidget::mouseGrabber() == this)
releaseMouse();
clearDockPlaceholders();
//Delete deco allocator
delete m_decoAllocator;
}
//-------------------------------------
//!Clears dock placeholders for this dockwidget. This is automatically called at drag ends.
void DockWidget::clearDockPlaceholders()
{
unsigned int i;
for (i = 0; i < m_placeholders.size(); ++i)
delete m_placeholders[i];
m_placeholders.clear();
}
//-------------------------------------
//!Shows dock widget in docked mode.
//!Returns true or false whether input \b QPoint is inside the dragging grip for \b this DockWidget, or not.
//!Typically (and by default), true is returned whenever p lies inside the widget's title bar when floating;
//!however, you are free to place the drag grip anywhere reimplementing this method in custom dockwidgets.
bool DockWidget::isDragGrip(QPoint p)
{
if (isFloating()) {
QRect frame = frameGeometry();
QRect conts = geometry();
int margin = conts.left() - frame.left();
int titleBarHeight = conts.top() - frame.top();
QRect titleArea(QPoint(0, margin - titleBarHeight), QPoint(width() - 1, -1));
return titleArea.contains(p);
}
return 0;
}
//-------------------------------------
bool DockWidget::event(QEvent *e)
{
//qDebug("Dock Widget - Event type: %d", e->type());
//Little deviation or type specifications for received events
switch (e->type()) {
//Dock widgets are hover widgets - since their cursor may change on resize grips.
case QEvent::HoverMove:
hoverMoveEvent(static_cast<QHoverEvent *>(e));
return true;
//Native titlebar press events must be redirected to common ones
// - and, in this case mouse has to grabbed
case QEvent::NonClientAreaMouseButtonPress:
//grabMouse(); //Cannot not go here or resizes cannot be natively handled
mousePressEvent(static_cast<QMouseEvent *>(e));
return true;
//Titlebars are not natively handled in this raw class - their responsibility falls
//to user implementation of DockWidget class
case QEvent::WindowTitleChange:
windowTitleEvent(e);
return true;
default:
return QWidget::event(e);
}
}
//-------------------------------------
//!Adjusts widget cursor depending on \b isResizeGrip()
//NOTA: Da migliorare: ricordare il cursor settato o se era unset e riapplicare
//quando fuori dal resize grip.
void DockWidget::hoverMoveEvent(QHoverEvent *he)
{
if (m_floating && !m_resizing && !m_undocking) {
QCursor newCursor = Qt::ArrowCursor;
if (m_marginType = isResizeGrip(he->pos())) {
//Hovering a margin - update cursor shape
if (m_marginType & leftMargin) {
if (m_marginType & topMargin)
newCursor = Qt::SizeFDiagCursor;
else if (m_marginType & bottomMargin)
newCursor = Qt::SizeBDiagCursor;
else
newCursor = Qt::SizeHorCursor;
} else if (m_marginType & rightMargin) {
if (m_marginType & topMargin)
newCursor = Qt::SizeBDiagCursor;
else if (m_marginType & bottomMargin)
newCursor = Qt::SizeFDiagCursor;
else
newCursor = Qt::SizeHorCursor;
} else
newCursor = Qt::SizeVerCursor;
}
if (newCursor.shape() != cursor().shape())
setCursor(newCursor);
}
}
//-------------------------------------
//!Dispatches mouse presses for particular purposes...
//!a) Trigger a window resize (or none with native deco)
//! if press is over a resize grip
//!b) Trigger a window drag if press is over a drag grip
void DockWidget::mousePressEvent(QMouseEvent *me)
{
if (m_marginType = m_floating ? isResizeGrip(me->pos()) : 0) {
//Resize begins
//NOTE: It is better to assume that resize grips dominate over drag grips: this ensures
//that mouse cursor changes are always consistent with resize events.
m_resizing = true;
m_dragMouseInitialPos = me->globalPos(); //Re-used as old position
} else if (isDragGrip(me->pos())) {
//Dragging begins
DockingCheck *lock = DockingCheck::instance(); //Docking system lock
m_dragMouseInitialPos = me->globalPos();
m_dragInitialPos = pos();
//Grab mouse inputs - useful if widget gets under placeholders
if (me->type() == QEvent::NonClientAreaMouseButtonPress)
//If can receive double-clicks, avoid grabbing mouse
grabMouse();
if (m_floating) {
m_dragging = true;
//Do not allow docking if there is a maximized widget or the layout is locked
if (m_parentLayout && !m_parentLayout->getMaximized() && !lock->isEnabled())
m_parentLayout->calculateDockPlaceholders(this);
} else {
if (!lock->isEnabled())
m_undocking = true;
m_dragInitialPos = parentWidget()->mapToGlobal(m_dragInitialPos);
}
}
}
//-------------------------------------
void DockWidget::mouseMoveEvent(QMouseEvent *me)
{
QPoint correctedGlobalPos(me->globalPos());
getClosestAvailableMousePosition(correctedGlobalPos);
if (m_resizing) {
//m_dragMouseInitialPos re-used as old position
int dx = correctedGlobalPos.x() - m_dragMouseInitialPos.x();
int dy = correctedGlobalPos.y() - m_dragMouseInitialPos.y();
QRect geom = geometry();
if (m_marginType & leftMargin) {
int newWidth = geom.width() - dx;
if (newWidth >= minimumWidth() && newWidth <= maximumWidth())
geom.setLeft(geom.left() + dx);
} else if (m_marginType & rightMargin)
geom.setRight(geom.right() + dx);
if (m_marginType & topMargin) {
int newHeight = geom.height() - dy;
if (newHeight >= minimumHeight() && newHeight <= maximumHeight())
geom.setTop(geom.top() + dy);
} else if (m_marginType & bottomMargin)
geom.setBottom(geom.bottom() + dy);
setGeometry(geom);
m_dragMouseInitialPos = correctedGlobalPos;
} else if (m_dragging) {
move(m_dragInitialPos + correctedGlobalPos - m_dragMouseInitialPos);
selectDockPlaceholder(me);
} else if (m_undocking) {
int distance = absoluteDistance(me->globalPos(), m_dragMouseInitialPos);
if (distance > 8) {
m_undocking = false;
//Attempt undocking
if (m_parentLayout->undockItem(this)) {
m_dragging = true;
//Then, move dock widget under cursor, as if drag actually begun at button press.
move(m_dragInitialPos + correctedGlobalPos - m_dragMouseInitialPos);
show(); //Dock widget is not automatically shown after undock.
//Re-grab mouse inputs. Seems that making the window float (i.e.: reparenting) breaks old grab.
//NOTE: mouse *must* be grabbed only when visible - see Qt manual.
grabMouse();
//After undocking takes place, docking possibilities have to be recalculated
m_parentLayout->calculateDockPlaceholders(this);
selectDockPlaceholder(me);
}
}
}
}
//-------------------------------------
void DockWidget::mouseReleaseEvent(QMouseEvent *me)
{
//Ensure mouse is released
releaseMouse();
if (m_dragging) {
m_dragging = false;
if (m_floating && m_selectedPlace) {
m_parentLayout->dockItem(this, m_selectedPlace);
} else {
//qDebug("Dock failed");
}
//Clear dock placeholders
clearDockPlaceholders();
m_selectedPlace = 0;
} else if (m_undocking) {
//qDebug("Undock failed");
m_undocking = false;
} else if (m_resizing) {
m_resizing = false;
}
}
//-------------------------------------
//!DockWidgets respond to title bar double clicks maximizing the widget in
//!layout's contents rect.
void DockWidget::mouseDoubleClickEvent(QMouseEvent *me)
{
if (!m_floating && isDragGrip(me->pos())) {
parentLayout()->setMaximized(this, !m_maximized);
}
}
//-------------------------------------
//!Switch in selected dock placeholder's hierarchy.
void DockWidget::wheelEvent(QWheelEvent *we)
{
if (m_dragging) {
if (m_selectedPlace) {
DockPlaceholder *newSelected = (we->delta() > 0) ? m_selectedPlace->parentPlaceholder() : m_selectedPlace->childPlaceholder(parentWidget()->mapFromGlobal(we->globalPos()));
if (newSelected != m_selectedPlace) {
m_selectedPlace->hide();
newSelected->show();
m_selectedPlace = newSelected;
}
}
}
}
//-------------------------------------
//!Returns widget (separator or docked widget) containing input \point, or 0 if none.
//!Convenience function combining parentLayout() and containerOf(\b point).
//!\b NOTE: Observe that, in any case, the use of QEnterEvents is discouraged for this purpose:
//!remember that we forcedly remain within its boundaries when dragging a dock widget;
//!instead, we are rather interested about entering the dock widgets *below*.
QWidget *DockWidget::hoveredWidget(QMouseEvent *me)
{
if (!m_parentLayout)
return 0;
QPoint point = parentWidget()->mapFromGlobal(me->globalPos());
return m_parentLayout->containerOf(point);
}
//-------------------------------------
//!Returns adjacent placeholders to hovered widget. If hovered is a separator,
//!just return associated placeholder.
DockPlaceholder *DockWidget::placeAdjacentTo(DockWidget *dockWidget, int boundary)
{
Region *r = parentLayout()->find(dockWidget);
if (((boundary == DockPlaceholder::left || boundary == DockPlaceholder::right) && r->getOrientation() == Region::horizontal) || ((boundary == DockPlaceholder::top || boundary == DockPlaceholder::bottom) && r->getOrientation() == Region::vertical)) {
//Placeholder is coherent with region orientation
return r->placeholders().size() ? r->placeholder(boundary % 2) : 0;
} else {
//Search in parent region
Region *parent = r->getParent();
if (parent) {
unsigned int i = parent->find(r);
return parent->placeholders().size() ? parent->placeholder(i + (boundary % 2)) : 0;
} else {
//No parent region - dockWidget is the only widget of the whole layout;
//Then check the first 2 elements of placeholders vector.
if (!m_placeholders[boundary % 2]->getParentRegion()) {
return m_placeholders.size() ? m_placeholders[boundary % 2] : 0;
}
}
}
return 0;
}
//-------------------------------------
//!Returns placeholder associated with input separator.
DockPlaceholder *DockWidget::placeOfSeparator(DockSeparator *sep)
{
Region *r = sep->getParentRegion();
int idx = sep->getIndex();
return r->placeholders().size() ? r->placeholder(idx + 1) : 0;
}
//-------------------------------------
//!Processes an input mouse event to select the active placeholder among the possible ones
//!for \b this dock widget. The selected placeholder is also evidenced with respect to the
//!other (or these are kept hidden) according to the body of this function.
void DockWidget::selectDockPlaceholder(QMouseEvent *me)
{
//const int inf= 1000000;
DockPlaceholder *selected = 0;
//Search placeholders cotaining muose position
unsigned int i;
for (i = 0; i < m_placeholders.size(); ++i) {
if (m_placeholders[i]->geometry().contains(me->globalPos())) {
selected = m_placeholders[i];
}
}
//In order to avoid flickering
if (m_selectedPlace != selected) {
if (m_selectedPlace)
m_selectedPlace->hide();
if (selected)
selected->show();
}
m_selectedPlace = selected;
}
//========================================================
//-------------------------
// Dock Placeholders
//-------------------------
inline QRect DockPlaceholder::parentGeometry() const
{
return m_region ? toRect(m_region->getGeometry()) : m_owner->parentLayout()->contentsRect();
}
//------------------------------------------------------
//!Assigns the geometry of \b this placeholder.
//!Once a placeholder is created, in response to a user window drag,
//!dock placeholders are calculated. After a placeholder is created,
//!its geometry is built according to this function. It is possible to
//!reimplement it in order to build custom placeholder styles.
inline void DockPlaceholder::buildGeometry()
{
QRect relativeToMainRect;
if (m_separator)
relativeToMainRect = m_separator->geometry();
else {
QRect parentRect = parentGeometry();
DockLayout *layout = m_owner->parentLayout();
QRect mainRect = layout->contentsRect();
int sepWidth = layout->spacing();
int margin = 6; //layout->margin(); //Purtroppo questa info e' assegnata prima delle Room...
if (isRoot()) {
//Set the whole contents rect
relativeToMainRect = parentRect;
//Set a square at middle of parent geometry
//QPoint center= parentRect.center();
//relativeToMainRect= QRect(center - QPoint(50,50), center + QPoint(50,50));
} else if (getParentRegion() == 0 || getParentRegion() == layout->rootRegion()) {
//Outer insertion case
switch (getAttribute()) {
int leftBound, upperBound;
case left:
leftBound = parentRect.left() - margin;
relativeToMainRect = QRect(leftBound, parentRect.top(), margin, parentRect.height());
break;
case right:
leftBound = parentRect.right() + 1;
relativeToMainRect = QRect(leftBound, parentRect.top(), margin, parentRect.height());
break;
case top:
upperBound = parentRect.top() - margin;
relativeToMainRect = QRect(parentRect.left(), upperBound, parentRect.width(), margin);
break;
default:
upperBound = parentRect.bottom() + 1;
relativeToMainRect = QRect(parentRect.left(), upperBound, parentRect.width(), margin);
break;
}
} else
switch (getAttribute()) {
int leftBound, upperBound;
case left:
leftBound = parentRect.left();
relativeToMainRect = QRect(leftBound, parentRect.top(), sepWidth, parentRect.height());
break;
case right:
leftBound = parentRect.right() - sepWidth + 1;
relativeToMainRect = QRect(leftBound, parentRect.top(), sepWidth, parentRect.height());
break;
case top:
upperBound = parentRect.top();
relativeToMainRect = QRect(parentRect.left(), upperBound, parentRect.width(), sepWidth);
break;
default:
upperBound = parentRect.bottom() - sepWidth + 1;
relativeToMainRect = QRect(parentRect.left(), upperBound, parentRect.width(), sepWidth);
break;
}
}
QPoint topLeft = m_owner->parentWidget()->mapToGlobal(relativeToMainRect.topLeft());
QPoint bottomRight = m_owner->parentWidget()->mapToGlobal(relativeToMainRect.bottomRight());
setGeometry(QRect(topLeft, bottomRight));
}
//------------------------------------------------------
DockPlaceholder::DockPlaceholder(DockWidget *owner, Region *r, int idx, int attributes)
: QWidget(owner), m_owner(owner), m_separator(0),
m_region(r), m_idx(idx), m_attributes(attributes)
{
setWindowFlags(Qt::Tool | Qt::WindowStaysOnTopHint | Qt::FramelessWindowHint);
//Set separators
if (r && idx && idx < (int)r->getChildList().size()) {
m_separator = r->separators()[idx - 1];
}
}
//------------------------------------------------------
inline DockSeparator *DockPlaceholder::getSeparator() const
{
return m_separator;
}
//------------------------------------------------------
//!Find the 'parent' of this placeholder (same side/orientation, on grandParent region)
//!NOTE: If no grandParent exists \b this is the root, which is then returned.
DockPlaceholder *DockPlaceholder::parentPlaceholder()
{
//Placeholders covering a whole separator or roots have no parent (return itself)
if (m_attributes == sepHor || m_attributes == sepVert || isRoot())
return this;
//Now, check if owner Region has a parent.
Region *grandParent;
if (!m_region || !m_region->getParent())
return this;
if (grandParent = m_region->getParent()->getParent()) {
//Good, we finally have to search in grandParent's region our direct parent.
unsigned int idx = grandParent->find(m_region->getParent());
//Since placeholders are built ordered, just use the found idx.
if (m_attributes == left || m_attributes == top)
return grandParent->placeholders().size() ? grandParent->placeholder(idx) : this;
else
return grandParent->placeholders().size() ? grandParent->placeholder(idx + 1) : this;
} else {
//GrandParent would be a new root. Then, take the first two possible placeholders
//of the entire dockWidget.
if (m_owner->m_placeholders.size()) {
DockPlaceholder *result = m_owner->m_placeholders[m_attributes % 2];
if (!result->m_region)
return result;
}
return this;
}
}
//------------------------------------------------------
//!The opposite of parentPlaceholder() - but a point belonging to the child
//!region to be selected is requested as univoque key among all children.
DockPlaceholder *DockPlaceholder::childPlaceholder(QPoint p)
{
//Ensure this is not a root placeholder
if (m_attributes == root)
return this;
//Define children list and ensure it is not void.
Region *r;
unsigned int i;
bool lastExtremity;
if (m_region) {
if (!m_region->getChildList().size())
return this;
//Search the subregion containing p
for (i = 0; i < m_region->getChildList().size(); ++i)
if (m_region->childRegion(i)->getGeometry().contains(p))
break;
if (i == m_region->getChildList().size())
return this; //No subregion found...
lastExtremity = (m_idx > (int)i);
//Ensure it has subRegions.
r = m_region->childRegion(i);
if (!r->getChildList().size())
return this;
} else {
r = m_owner->parentLayout()->rootRegion();
lastExtremity = m_attributes % 2;
}
//Now, take the 'grandson' region as above.
for (i = 0; i < r->getChildList().size(); ++i)
if (r->childRegion(i)->getGeometry().contains(p))
break;
if (i == r->getChildList().size())
return this; //No subregion found...
r = r->childRegion(i);
//Finally, return child placeholder found.
return r->placeholders().size() ? lastExtremity ? r->placeholders().back() : r->placeholders().front() : this;
}
//------------------------------------------------------
//!Returns greatest placeholder which contains this one.
inline DockPlaceholder *DockPlaceholder::greatestPlaceholder()
{
DockPlaceholder *old = this, *current = parentPlaceholder();
while (current != old) {
old = current;
current = old->parentPlaceholder();
}
return current;
}
//------------------------------------------------------
//!Returns smallest placeholder contained by this one - a point belonging to the child
//!region to be selected is requested as univoque key among all children.
inline DockPlaceholder *DockPlaceholder::smallestPlaceholder(QPoint p)
{
DockPlaceholder *old = this, *current = childPlaceholder(p);
while (current != old) {
old = current;
current = old->childPlaceholder(p);
}
return current;
}
//========================================================================
//------------------
// Separators
//------------------
DockSeparator::DockSeparator(DockLayout *owner, bool orientation, Region *parentRegion)
: QWidget(owner->parentWidget()), m_owner(owner), m_orientation(orientation),
m_parentRegion(parentRegion), m_pressed(false)
{
setObjectName("DockSeparator");
setWindowFlags(Qt::SubWindow);
setAutoFillBackground(false);
//Set appropriate widget cursor
if (m_orientation == Region::horizontal)
setCursor(Qt::SplitHCursor);
else
setCursor(Qt::SplitVCursor);
show();
}
//-------------------------------------
void DockSeparator::mousePressEvent(QMouseEvent *me)
{
m_pressed = true;
m_oldPos = me->globalPos();
const std::deque<DockSeparator *> &sepList = m_parentRegion->separators();
const std::deque<Region *> &childList = m_parentRegion->getChildList();
//Find separated Regions (separator index)
unsigned int i;
for (i = 0; i < sepList.size(); ++i)
if (sepList[i] == this)
break;
//Calculate bounds for separator shift
//First ensure extremal sizes are recalculated
m_parentRegion->calculateExtremalSizes();
int sepWidth = m_owner->spacing();
Region *r = getParentRegion();
double parentLeft, parentRight;
int leftSepCount = m_index;
int rightSepCount = r->separators().size() - leftSepCount; //This sep included
if (m_orientation == Region::horizontal) {
parentLeft = r->getGeometry().left();
parentRight = r->getGeometry().right();
} else {
parentLeft = r->getGeometry().top();
parentRight = r->getGeometry().bottom();
}
//Calculate left and right extremal sizes
int j, leftMinSize = 0, rightMinSize = 0, leftMaxSize = 0, rightMaxSize = 0;
for (j = 0; j <= m_index; ++j) {
leftMinSize += r->childRegion(j)->getMinimumSize(m_orientation);
leftMaxSize += r->childRegion(j)->getMaximumSize(m_orientation);
}
int size = r->getChildList().size();
for (j = m_index + 1; j < size; ++j) {
rightMinSize += r->childRegion(j)->getMinimumSize(m_orientation);
rightMaxSize += r->childRegion(j)->getMaximumSize(m_orientation);
}
//Sull'intera regione padre
m_leftBound = std::max(parentLeft + leftMinSize + leftSepCount * sepWidth,
parentRight - rightMaxSize - rightSepCount * sepWidth);
m_rightBound = std::min(parentLeft + leftMaxSize + leftSepCount * sepWidth,
parentRight - rightMinSize - rightSepCount * sepWidth);
}
//-------------------------------------
inline void DockSeparator::mouseReleaseEvent(QMouseEvent *me)
{
m_pressed = false;
}
//-------------------------------------
void DockSeparator::mouseMoveEvent(QMouseEvent *me)
{
if (m_pressed) {
double movedPosition, newPosition;
if (m_orientation == Region::horizontal) {
double dx = me->globalX() - m_oldPos.x();
movedPosition = getParentRegion()->childRegion(m_index)->getGeometry().right() + dx;
newPosition = std::min(std::max(movedPosition, m_leftBound), m_rightBound);
dx += newPosition - movedPosition;
if (dx) {
Region *r;
QRectF newGeometry;
double newWidth, dxTemp = dx;
int i;
//Propagate dx in left-adjacent regions
for (i = m_index; dx != 0 && i >= 0; --i) {
r = getParentRegion()->childRegion(i);
newGeometry = r->getGeometry();
//Right margin is shifted by dx
newGeometry.adjust(0, 0, dx, 0);
newWidth = newGeometry.width();
//New width absorbs part of dx according to constraints
newWidth = std::min(std::max(newWidth,
(double)r->getMinimumSize(Region::horizontal)),
(double)r->getMaximumSize(Region::horizontal));
newGeometry.adjust(dx = newGeometry.width() - newWidth, 0, 0, 0);
r->setGeometry(newGeometry);
r->redistribute();
}
dx = dxTemp;
int size = getParentRegion()->getChildList().size();
//Propagate dx in right-adjacent regions
for (i = m_index + 1; dx != 0 && i < size; ++i) {
r = getParentRegion()->childRegion(i);
newGeometry = r->getGeometry();
newGeometry.adjust(dx, 0, 0, 0);
newWidth = newGeometry.width();
newWidth = std::min(std::max(newWidth,
(double)r->getMinimumSize(Region::horizontal)),
(double)r->getMaximumSize(Region::horizontal));
newGeometry.adjust(0, 0, dx = newWidth - newGeometry.width(), 0);
r->setGeometry(newGeometry);
r->redistribute();
}
m_owner->update();
}
} else {
double dy = me->globalY() - m_oldPos.y();
movedPosition = getParentRegion()->childRegion(m_index)->getGeometry().bottom() + dy;
newPosition = std::min(std::max(movedPosition, m_leftBound), m_rightBound);
dy += newPosition - movedPosition;
if (dy) {
Region *r;
QRectF newGeometry;
double newHeight, dyTemp = dy;
int i;
for (i = m_index; dy != 0 && i >= 0; --i) {
r = getParentRegion()->childRegion(i);
newGeometry = r->getGeometry();
QRectF oldGeometry = newGeometry;
newGeometry.adjust(0, 0, 0, dy);
newHeight = newGeometry.height();
newHeight = std::min(std::max(newHeight,
(double)r->getMinimumSize(Region::vertical)),
(double)r->getMaximumSize(Region::vertical));
newGeometry.adjust(0, dy = newGeometry.height() - newHeight, 0, 0);
r->setGeometry(newGeometry);
r->redistribute();
}
dy = dyTemp;
int size = getParentRegion()->getChildList().size();
for (i = m_index + 1; dy != 0 && i < size; ++i) {
r = getParentRegion()->childRegion(i);
newGeometry = r->getGeometry();
newGeometry.adjust(0, dy, 0, 0);
newHeight = newGeometry.height();
newHeight = std::min(std::max(newHeight,
(double)r->getMinimumSize(Region::vertical)),
(double)r->getMaximumSize(Region::vertical));
newGeometry.adjust(0, 0, 0, dy = newHeight - newGeometry.height());
r->setGeometry(newGeometry);
r->redistribute();
}
m_owner->update();
}
}
m_oldPos = QPoint(me->globalX(), me->globalY());
}
}
//========================================================
//----------------------------------
// Available geometries code
//----------------------------------
namespace
{
//-------------------------------------
//Finds the closest mouse point belonging to some available geometry.
void getClosestAvailableMousePosition(QPoint &globalPos)
{
//Search the screen rect containing the mouse position
int i, screens = desktop->numScreens();
for (i = 0; i < screens; ++i)
if (desktop->screenGeometry(i).contains(globalPos))
break;
//Find the closest point to the corresponding available region
QRect rect(desktop->availableGeometry(i));
if (rect.contains(globalPos))
return;
//Return the closest point to the available geometry
QPoint result;
if (globalPos.x() < rect.left())
globalPos.setX(rect.left());
else if (globalPos.x() > rect.right())
globalPos.setX(rect.right());
if (globalPos.y() < rect.top())
globalPos.setY(rect.top());
else if (globalPos.y() > rect.bottom())
globalPos.setY(rect.bottom());
}
} //Local namespace