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koffice/kexi/formeditor/container.cpp

1183 lines
34 KiB

/* This file is part of the KDE project
Copyright (C) 2003 Lucijan Busch <lucijan@gmx.at>
Copyright (C) 2004 Cedric Pasteur <cedric.pasteur@free.fr>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include <tqpainter.h>
#include <tqpixmap.h>
#include <tqrect.h>
#include <tqevent.h>
#include <tqvaluevector.h>
#include <tqlayout.h>
#include <tqcursor.h>
#include <kdebug.h>
#include <klocale.h>
#include <kpopupmenu.h>
#include <cstdlib> // for abs()
#include "utils.h"
#include "container.h"
#include "widgetlibrary.h"
#include "objecttree.h"
#include "form.h"
#include "formmanager.h"
#include "commands.h"
#include "events.h"
#include "kexiflowlayout.h"
using namespace KFormDesigner;
EventEater::EventEater(TQWidget *widget, TQObject *container)
: TQObject(container)
{
m_widget = widget;
m_container = container;
installRecursiveEventFilter(TQT_TQOBJECT(m_widget), this);
}
bool
EventEater::eventFilter(TQObject *, TQEvent *ev)
{
if(!m_container)
return false;
// When the user click the empty part of tab bar, only MouseReleaseEvent is sent,
// we need to simulate the Press event
if(ev->type() == TQEvent::MouseButtonRelease && m_widget->inherits(TQTABWIDGET_OBJECT_NAME_STRING))
{
TQMouseEvent *mev = TQT_TQMOUSEEVENT(ev);
if(mev->button() == Qt::LeftButton)
{
TQMouseEvent *myev = new TQMouseEvent(TQEvent::MouseButtonPress, mev->pos(), mev->button(), mev->state());
m_container->eventFilter(m_widget, myev);
delete myev;
//return true;
}
}
// else if(ev->type() == TQEvent::ChildInserted) {
// widget's children have changed, we need to reinstall filter
// installRecursiveEventFilter(m_widget, this);
// }
return m_container->eventFilter(m_widget, ev);
}
EventEater::~EventEater()
{
if(m_widget)
removeRecursiveEventFilter(TQT_TQOBJECT(m_widget), TQT_TQOBJECT(this));
}
// Container itself
Container::Container(Container *toplevel, TQWidget *container, TQObject *parent, const char *name)
: TQObject(parent, name)
, m_insertBegin(-1,-1)
, m_mousePressEventReceived(false)
, m_mouseReleaseEvent(TQEvent::None, TQPoint(), 0, 0)
{
m_container = container;
m_toplevel = toplevel;
m_moving = 0;
m_tree = 0;
m_form = toplevel ? toplevel->form() : 0;
m_layout = 0;
m_layType = NoLayout;
m_state = DoingNothing;
TQCString classname = container->className();
if((classname == "HBox") || (classname == "Grid") || (classname == "VBox") ||
(classname == "HFlow") || (classname == "VFlow"))
m_margin = 4; // those containers don't have frames, so little margin
else
m_margin = m_form ? m_form->defaultMargin() : 0;
m_spacing = m_form ? m_form->defaultSpacing() : 0;
if(toplevel)
{
ObjectTreeItem *it = new ObjectTreeItem(m_form->library()->displayName(classname),
widget()->name(), widget(), this, this);
setObjectTree(it);
if(parent->isWidgetType())
{
TQString n = parent->name();
ObjectTreeItem *parent = m_form->objectTree()->lookup(n);
m_form->objectTree()->addItem(parent, it);
}
else
m_form->objectTree()->addItem(toplevel->objectTree(), it);
connect(toplevel, TQT_SIGNAL(destroyed()), this, TQT_SLOT(widgetDeleted()));
}
connect(container, TQT_SIGNAL(destroyed()), this, TQT_SLOT(widgetDeleted()));
}
Container::~Container()
{
kdDebug() << " Container being deleted this == " << name() << endl;
}
void
Container::setForm(Form *form)
{
m_form = form;
m_margin = m_form ? m_form->defaultMargin() : 0;
m_spacing = m_form ? m_form->defaultSpacing() : 0;
}
bool
Container::eventFilter(TQObject *s, TQEvent *e)
{
// kdDebug() << e->type() << endl;
switch(e->type())
{
case TQEvent::MouseButtonPress:
{
m_insertBegin = TQPoint(-1, -1);
m_mousePressEventReceived = true;
kdDebug() << "TQEvent::MouseButtonPress sender object = " << s->name()
<< "of type " << s->className() << endl;
kdDebug() << "TQEvent::MouseButtonPress this = " << name() << endl;
m_moving = TQT_TQWIDGET(s);
TQMouseEvent *mev = TQT_TQMOUSEEVENT(e);
m_grab = TQPoint(mev->x(), mev->y());
// we are drawing a connection
if(FormManager::self()->isCreatingConnection()) {
drawConnection(mev);
return true;
}
if(((mev->state() == ControlButton) || (mev->state() == ShiftButton))
&& (!FormManager::self()->isInserting())) // multiple selection mode
{
if(m_form->selectedWidgets()->findRef(m_moving) != -1) // widget is already selected
{
if(m_form->selectedWidgets()->count() > 1) // we remove it from selection
unSelectWidget(m_moving);
else // the widget is the only selected, so it means we want to copy it
{
//m_copyRect = m_moving->geometry();
m_state = CopyingWidget;
if(m_form->formWidget())
m_form->formWidget()->initBuffer();
}
}
else // the widget is not yet selected, we add it
setSelectedWidget(m_moving, true, (mev->button() == Qt::RightButton));
}
else if((m_form->selectedWidgets()->count() > 1))//&& (!m_form->manager()->isInserting())) // more than one widget selected
{
if(m_form->selectedWidgets()->findRef(m_moving) == -1) // widget is not selected, it becomes the only selected widget
setSelectedWidget(m_moving, false, (mev->button() == Qt::RightButton));
// If the widget is already selected, we do nothing (to ease widget moving, etc.)
}
else// if(!m_form->manager()->isInserting())
setSelectedWidget(m_moving, false, (mev->button() == Qt::RightButton));
// we are inserting a widget or drawing a selection rect in the form
if((/*s == m_container &&*/ FormManager::self()->isInserting()) || ((s == m_container) && !m_toplevel))
{
int tmpx,tmpy;
if(!FormManager::self()->snapWidgetsToGrid() || (mev->state() == (Qt::LeftButton|ControlButton|AltButton)))
{
tmpx = mev->x();
tmpy = mev->y();
}
else
{
int gridX = m_form->gridSize();
int gridY = m_form->gridSize();
tmpx = int( (float)mev->x() / ((float)gridX) + 0.5 ); // snap to grid
tmpx *= gridX;
tmpy = int( (float)mev->y() / ((float)gridY) + 0.5 );
tmpy *= gridX;
}
m_insertBegin = (TQT_TQWIDGET(s))->mapTo(m_container, TQPoint(tmpx, tmpy));
if(m_form->formWidget())
m_form->formWidget()->initBuffer();
if(!FormManager::self()->isInserting())
m_state = DrawingSelectionRect;
}
else {
if(s->inherits(TQTABWIDGET_OBJECT_NAME_STRING)) // to allow changing page by clicking tab
return false;
}
if (m_objectForMouseReleaseEvent) {
const bool res = handleMouseReleaseEvent(m_objectForMouseReleaseEvent, &m_mouseReleaseEvent);
m_objectForMouseReleaseEvent = 0;
return res;
}
return true;
}
case TQEvent::MouseButtonRelease:
{
TQMouseEvent *mev = TQT_TQMOUSEEVENT(e);
if (!m_mousePressEventReceived) {
m_mouseReleaseEvent = *mev;
m_objectForMouseReleaseEvent = s;
return true;
}
m_mousePressEventReceived = false;
m_objectForMouseReleaseEvent = 0;
return handleMouseReleaseEvent(s, mev);
}
case TQEvent::MouseMove:
{
TQMouseEvent *mev = TQT_TQMOUSEEVENT(e);
if(m_insertBegin!=TQPoint(-1,-1) && FormManager::self()->isInserting() && ((mev->state() == Qt::LeftButton) || (mev->state() == (Qt::LeftButton|ControlButton)) ||
(mev->state() == (Qt::LeftButton|ControlButton|AltButton)) || (mev->state() == (Qt::LeftButton|ShiftButton)) ) )
// draw the insert rect
{
drawInsertRect(mev, s);
return true;
}
// Creating a connection, we highlight sender and receiver, and we draw a link between them
else if(FormManager::self()->isCreatingConnection() && !FormManager::self()->createdConnection()->sender().isNull())
{
ObjectTreeItem *tree = m_form->objectTree()->lookup(FormManager::self()->createdConnection()->sender());
if(!tree || !tree->widget())
return true;
if(m_form->formWidget() && (TQT_BASE_OBJECT(tree->widget()) != TQT_BASE_OBJECT(s)))
m_form->formWidget()->highlightWidgets(tree->widget(), TQT_TQWIDGET(s));
}
else if(m_insertBegin!=TQPoint(-1,-1) && s == m_container && !m_toplevel && (mev->state() != ControlButton) && !FormManager::self()->isCreatingConnection()) // draw the selection rect
{
if((mev->state() != Qt::LeftButton) || /*m_inlineEditing*/ m_state == InlineEditing)
return true;
int topx = (m_insertBegin.x() < mev->x()) ? m_insertBegin.x() : mev->x();
int topy = (m_insertBegin.y() < mev->y()) ? m_insertBegin.y() : mev->y();
int botx = (m_insertBegin.x() > mev->x()) ? m_insertBegin.x() : mev->x();
int boty = (m_insertBegin.y() > mev->y()) ? m_insertBegin.y() : mev->y();
TQRect r = TQRect(TQPoint(topx, topy), TQPoint(botx, boty));
m_insertRect = r;
if(m_form->formWidget())
m_form->formWidget()->drawRect(r, 1);
m_state = DoingNothing;
return true;
}
else if(mev->state() == (Qt::LeftButton|ControlButton)) // draw the insert rect for the copied widget
{
if(s == m_container)// || (m_form->selectedWidgets()->count() > 1))
return true;
drawCopiedWidgetRect(mev);
return true;
}
else if( ( (mev->state() == Qt::LeftButton) || (mev->state() == (Qt::LeftButton|ControlButton|AltButton)) )
&& !FormManager::self()->isInserting() && (m_state != CopyingWidget)) // we are dragging the widget(s) to move it
{
if(!m_toplevel && m_moving == m_container) // no effect for form
return false;
if((!m_moving) || (!m_moving->parentWidget()))// || (m_moving->parentWidget()->inherits(TQWIDGETSTACK_OBJECT_NAME_STRING)))
return true;
moveSelectedWidgetsBy(mev->x() - m_grab.x(), mev->y() - m_grab.y());
m_state = MovingWidget;
}
return true; // eat
}
case TQEvent::Paint: // Draw the dotted background
{
if(s != m_container)
return false;
int gridX = m_form->gridSize();
int gridY = m_form->gridSize();
TQPainter p(m_container);
p.setPen(TQPen(white, 2));
p.setRasterOp(XorROP);
int cols = m_container->width() / gridX;
int rows = m_container->height() / gridY;
for(int rowcursor = 1; rowcursor <= rows; ++rowcursor)
{
for(int colcursor = 1; colcursor <= cols; ++colcursor)
{
p.drawPoint(-1 + colcursor *gridX, -1 + rowcursor *gridY);
}
}
return false;
}
case TQEvent::Resize: // we are resizing a widget, so we set m_move to true -> the layout will be reloaded when releasing mouse
{
if(m_form->interactiveMode())
m_state = MovingWidget;
break;
}
//case TQEvent::AccelOverride:
case TQEvent::KeyPress:
{
TQKeyEvent *kev = TQT_TQKEYEVENT(e);
if(kev->key() == Key_F2) // pressing F2 == double-clicking
{
m_state = InlineEditing;
TQWidget *w;
// try to find the widget which was clicked last and should be edited
if(m_form->selectedWidgets()->count() == 1)
w = m_form->selectedWidgets()->first();
else if(m_form->selectedWidgets()->findRef(m_moving) != -1)
w = m_moving;
else
w = m_form->selectedWidgets()->last();
m_form->library()->startEditing(w->className(), w, this);
}
else if(kev->key() == Key_Escape)
{
if(FormManager::self()->isCreatingConnection())
FormManager::self()->stopCreatingConnection();
else if(FormManager::self()->isInserting())
FormManager::self()->stopInsert();
return true;
}
else if((kev->key() == Key_Control) && (m_state == MovingWidget))
{
if(!m_moving)
return true;
// we simulate a mouse move event to update screen
TQMouseEvent *mev = new TQMouseEvent(TQEvent::MouseMove, m_moving->mapFromGlobal(TQCursor::pos()), Qt::NoButton,
Qt::LeftButton|ControlButton );
eventFilter(TQT_TQOBJECT(m_moving), TQT_TQEVENT(mev));
delete mev;
}
else if(kev->key() == FormManager::self()->contextMenuKey())
{
FormManager::self()->createContextMenu(TQT_TQWIDGET(s), this, false);
return true;
}
else if (kev->key() == Key_Delete)
{
FormManager::self()->deleteWidget();
return true;
}
// directional buttons move the widget
else if(kev->key() == Key_Left){ // move the widget of gridX to the left
moveSelectedWidgetsBy(-form()->gridSize(), 0);
return true;
}
else if(kev->key() == Key_Right){ // move the widget of gridX to the right
moveSelectedWidgetsBy(form()->gridSize(), 0);
return true;
}
else if(kev->key() == Key_Up){ // move the widget of gridY to the top
moveSelectedWidgetsBy(0, - form()->gridSize());
return true;
}
else if(kev->key() == Key_Down){ // move the widget of gridX to the bottom
moveSelectedWidgetsBy(0, form()->gridSize());
return true;
}
else if((kev->key() == Key_Tab) || (kev->key() == Key_BackTab)){
ObjectTreeItem *item = form()->objectTree()->lookup(form()->selectedWidgets()->first()->name());
if(!item || !item->parent())
return true;
ObjectTreeList *list = item->parent()->children();
if(list->count() == 1)
return true;
int index = list->findRef(item);
if(kev->key() == Key_BackTab){
if(index == 0) // go back to the last item
index = list->count() - 1;
else
index = index - 1;
}
else {
if(index == int(list->count() - 1)) // go back to the first item
index = 0;
else
index = index + 1;
}
ObjectTreeItem *nextItem = list->at(index);
if(nextItem && nextItem->widget())
form()->setSelectedWidget(nextItem->widget(), false);
}
return true;
}
case TQEvent::KeyRelease:
{
TQKeyEvent *kev = TQT_TQKEYEVENT(e);
if((kev->key() == Key_Control) && (m_state == CopyingWidget)) {
// cancel copying
//m_copyRect = TQRect();
if(m_form->formWidget())
m_form->formWidget()->clearForm();
}
return true;
}
case TQEvent::MouseButtonDblClick: // editing
{
kdDebug() << "Container: Mouse dbl click for widget " << s->name() << endl;
TQWidget *w = TQT_TQWIDGET(s);
if(!w)
return false;
//m_inlineEditing = true;
m_state = InlineEditing;
m_form->library()->startEditing(w->className(), w, this);
return true;
}
case TQEvent::ContextMenu:
case TQEvent::Enter:
case TQEvent::Leave:
case TQEvent::FocusIn:
case TQEvent::FocusOut:
// case TQEvent::DragEnter:
// case TQEvent::DragMove:
// case TQEvent::DragLeave:
return true; // eat them
default:
return false; // let the widget do the rest ...
}
return false;
}
bool
Container::handleMouseReleaseEvent(TQObject *s, TQMouseEvent *mev)
{
if(FormManager::self()->isInserting()) // we insert the widget at cursor pos
{
if(m_form->formWidget())
m_form->formWidget()->clearForm();
KCommand *com = new InsertWidgetCommand(this/*, mev->pos()*/);
m_form->addCommand(com, true);
m_insertBegin = TQPoint(-1,-1);
m_insertRect = TQRect();
return true;
}
else if(s == m_container && !m_toplevel && (mev->button() != Qt::RightButton) && m_insertRect.isValid()) // we are drawing a rect to select widgets
{
drawSelectionRect(mev);
return true;
}
if(mev->button() == Qt::RightButton) // Right-click -> context menu
{
FormManager::self()->createContextMenu(TQT_TQWIDGET(s), this);
}
else if(mev->state() == (Qt::LeftButton|TQt::ControlButton))// && (m_copyRect.isValid()))
{
// copying a widget by Ctrl+dragging
if(m_form->formWidget())
m_form->formWidget()->clearForm();
if(s == m_container) // should have no effect on form
return true;
// prevent accidental copying of widget (when moving mouse a little while selecting)
if( ( (mev->pos().x() - m_grab.x()) < form()->gridSize() && (m_grab.x() - mev->pos().x()) < form()->gridSize() ) &&
( (mev->pos().y() - m_grab.y()) < form()->gridSize() && (m_grab.y() - mev->pos().y()) < form()->gridSize() ) )
{
kdDebug() << "The widget has not been moved. No copying" << endl;
return true;
}
m_form->setInteractiveMode(false);
// We simulate copy and paste
FormManager::self()->copyWidget();
if(m_form->selectedWidgets()->count() > 1)
FormManager::self()->setInsertPoint( mev->pos() );
else
FormManager::self()->setInsertPoint( TQT_TQWIDGET(s)->mapTo(m_container, mev->pos() - m_grab) );
FormManager::self()->pasteWidget();
m_form->setInteractiveMode(true);
//m_initialPos = TQPoint();
}
else if(m_state == MovingWidget) // one widget has been moved, so we need to update the layout
reloadLayout();
// cancel copying as user released Ctrl before releasing mouse button
m_insertBegin = TQPoint(-1,-1);
m_insertRect = TQRect();
m_state = DoingNothing;
return true; // eat
}
void
Container::setSelectedWidget(TQWidget *w, bool add, bool dontRaise, bool moreWillBeSelected)
{
if (w)
kdDebug() << "slotSelectionChanged " << w->name()<< endl;
if(!w)
{
m_form->setSelectedWidget(m_container);
return;
}
m_form->setSelectedWidget(w, add, dontRaise, moreWillBeSelected);
}
void
Container::unSelectWidget(TQWidget *w)
{
if(!w)
return;
m_form->unSelectWidget(w);
}
Container*
Container::toplevel()
{
if(m_toplevel)
return m_toplevel;
else
return this;
}
void
Container::deleteWidget(TQWidget *w)
{
if(!w)
return;
// kdDebug() << "Deleting a widget: " << w->name() << endl;
m_form->objectTree()->removeItem(w->name());
FormManager::self()->deleteWidgetLater( w );
m_form->setSelectedWidget(m_container);
}
void
Container::widgetDeleted()
{
m_container = 0;
deleteLater();
}
/// Layout functions
void
Container::setLayout(LayoutType type)
{
if(m_layType == type)
return;
delete m_layout;
m_layout = 0;
m_layType = type;
switch(type)
{
case HBox:
{
m_layout = (TQLayout*) new TQHBoxLayout(m_container, m_margin, m_spacing);
createBoxLayout(new HorWidgetList(m_form->toplevelContainer()->widget()));
break;
}
case VBox:
{
m_layout = (TQLayout*) new TQVBoxLayout(m_container, m_margin, m_spacing);
createBoxLayout(new VerWidgetList(m_form->toplevelContainer()->widget()));
break;
}
case Grid:
{
createGridLayout();
break;
}
case HFlow:
{
KexiFlowLayout *flow = new KexiFlowLayout(m_container,m_margin, m_spacing);
flow->setOrientation(Qt::Horizontal);
m_layout = (TQLayout*)flow;
createFlowLayout();
break;
}
case VFlow:
{
KexiFlowLayout *flow = new KexiFlowLayout(m_container,m_margin, m_spacing);
flow->setOrientation(Qt::Vertical);
m_layout = (TQLayout*)flow;
createFlowLayout();
break;
}
default:
{
m_layType = NoLayout;
return;
}
}
m_container->setGeometry(m_container->geometry()); // just update layout
m_layout->activate();
}
void
Container::reloadLayout()
{
LayoutType type = m_layType;
setLayout(NoLayout);
setLayout(type);
}
void
Container::createBoxLayout(WidgetList *list)
{
TQBoxLayout *layout = static_cast<TQBoxLayout*>(m_layout);
for(ObjectTreeItem *tree = m_tree->children()->first(); tree; tree = m_tree->children()->next())
list->append( tree->widget());
list->sort();
for(TQWidget *obj = list->first(); obj; obj = list->next())
layout->addWidget(obj);
delete list;
}
void
Container::createFlowLayout()
{
KexiFlowLayout *flow = dynamic_cast<KexiFlowLayout*>(m_layout);
if(!flow || m_tree->children()->isEmpty())
return;
const int offset = 15;
WidgetList *list=0, *list2=0;
if(flow->orientation() ==Qt::Horizontal) {
list = new VerWidgetList(m_form->toplevelContainer()->widget());
list2 = new HorWidgetList(m_form->toplevelContainer()->widget());
}
else {
list = new HorWidgetList(m_form->toplevelContainer()->widget());
list2 = new VerWidgetList(m_form->toplevelContainer()->widget());
}
// fill the list
for(ObjectTreeItem *tree = m_tree->children()->first(); tree; tree = m_tree->children()->next())
list->append( tree->widget());
list->sort();
if(flow->orientation() ==Qt::Horizontal) {
int y = list->first()->y();
for(TQWidget *w = list->first(); w; w = list->next()) {
if( (w->y() > y +offset)) {
// start a new line
list2->sort();
for(TQWidget *obj = list2->first(); obj; obj = list2->next())
flow->add(obj);
list2->clear();
y = w->y();
}
list2->append(w);
}
list2->sort(); // don't forget the last line
for(TQWidget *obj = list2->first(); obj; obj = list2->next())
flow->add(obj);
}
else {
int x = list->first()->x();
for(TQWidget *w = list->first(); w; w = list->next()) {
if( (w->x() > x +offset)) {
// start a new column
list2->sort();
for(TQWidget *obj = list2->first(); obj; obj = list2->next())
flow->add(obj);
list2->clear();
x = w->x();
}
list2->append(w);
}
list2->sort(); // don't forget the last column
for(TQWidget *obj = list2->first(); obj; obj = list2->next())
flow->add(obj);
}
delete list;
delete list2;
}
void
Container::createGridLayout(bool testOnly)
{
//Those lists sort widgets by y and x
VerWidgetList *vlist = new VerWidgetList(m_form->toplevelContainer()->widget());
HorWidgetList *hlist = new HorWidgetList(m_form->toplevelContainer()->widget());
// The vector are used to store the x (or y) beginning of each column (or row)
TQValueVector<int> cols;
TQValueVector<int> rows;
int end=-1000;
bool same = false;
for(ObjectTreeItem *tree = m_tree->children()->first(); tree; tree = m_tree->children()->next())
vlist->append( tree->widget());
vlist->sort();
for(ObjectTreeItem *tree = m_tree->children()->first(); tree; tree = m_tree->children()->next())
hlist->append( tree->widget());
hlist->sort();
// First we need to make sure that two widgets won't be in the same row,
// ie that no widget overlap another one
if(!testOnly) {
for(WidgetListIterator it(*vlist); it.current() != 0; ++it)
{
TQWidget *w = it.current();
WidgetListIterator it2 = it;
for(; it2.current() != 0; ++it2) {
TQWidget *nextw = it2.current();
if((w->y() >= nextw->y()) || (nextw->y() >= w->geometry().bottom()))
break;
if(!w->geometry().intersects(nextw->geometry()))
break;
// If the geometries of the two widgets intersect each other,
// we move one of the widget to the rght or bottom of the other
if((nextw->y() - w->y()) > abs(nextw->x() - w->x()))
nextw->move(nextw->x(), w->geometry().bottom()+1);
else if(nextw->x() >= w->x())
nextw->move(w->geometry().right()+1, nextw->y());
else
w->move(nextw->geometry().right()+1, nextw->y());
}
}
}
// Then we count the number of rows in the layout, and set their beginnings
for(WidgetListIterator it(*vlist); it.current() != 0; ++it)
{
TQWidget *w = it.current();
WidgetListIterator it2 = it;
if(!same) { // this widget will make a new row
end = w->geometry().bottom();
rows.append(w->y());
}
// If same == true, it means we are in the same row as prev widget
// (so no need to create a new column)
++it2;
if(!it2.current())
break;
TQWidget *nextw = it2.current();
if(nextw->y() >= end)
same = false;
else {
same = !(same && (nextw->y() >= w->geometry().bottom()));
if(!same)
end = w->geometry().bottom();
}
}
kdDebug() << "the new grid will have n rows: n == " << rows.size() << endl;
end = -10000;
same = false;
// We do the same thing for the columns
for(WidgetListIterator it(*hlist); it.current() != 0; ++it)
{
TQWidget *w = it.current();
WidgetListIterator it2 = it;
if(!same) {
end = w->geometry().right();
cols.append(w->x());
}
++it2;
if(!it2.current())
break;
TQWidget *nextw = it2.current();
if(nextw->x() >= end)
same = false;
else {
same = !(same && (nextw->x() >= w->geometry().right()));
if(!same)
end = w->geometry().right();
}
}
kdDebug() << "the new grid will have n columns: n == " << cols.size() << endl;
// We create the layout ..
TQGridLayout *layout=0;
if(!testOnly) {
layout = new TQGridLayout(m_container, rows.size(), cols.size(), m_margin, m_spacing, "grid");
m_layout = (TQLayout*)layout;
}
// .. and we fill it with widgets
for(WidgetListIterator it(*vlist); it.current() != 0; ++it)
{
TQWidget *w = it.current();
TQRect r = w->geometry();
uint wcol=0, wrow=0, endrow=0, endcol=0;
uint i = 0;
// We look for widget row(s) ..
while(r.y() >= rows[i])
{
if(rows.size() <= i+1) // we are the last row
{
wrow = i;
break;
}
if(r.y() < rows[i+1])
{
wrow = i; // the widget will be in this row
uint j = i + 1;
// Then we check if the widget needs to span multiple rows
while(rows.size() >= j+1 && r.bottom() > rows[j])
{
endrow = j;
j++;
}
break;
}
i++;
}
//kdDebug() << "the widget " << w->name() << " wil be in the row " << wrow <<
//" and will go to the row " << endrow << endl;
// .. and column(s)
i = 0;
while(r.x() >= cols[i])
{
if(cols.size() <= i+1) // last column
{
wcol = i;
break;
}
if(r.x() < cols[i+1])
{
wcol = i;
uint j = i + 1;
// Then we check if the widget needs to span multiple columns
while(cols.size() >= j+1 && r.right() > cols[j])
{
endcol = j;
j++;
}
break;
}
i++;
}
//kdDebug() << "the widget " << w->name() << " wil be in the col " << wcol <<
// " and will go to the col " << endcol << endl;
ObjectTreeItem *item = m_form->objectTree()->lookup(w->name());
if(!endrow && !endcol) {
if(!testOnly)
layout->addWidget(w, wrow, wcol);
item->setGridPos(wrow, wcol, 0, 0);
}
else {
if(!endcol) endcol = wcol;
if(!endrow) endrow = wrow;
if(!testOnly)
layout->addMultiCellWidget(w, wrow, endrow, wcol, endcol);
item->setGridPos(wrow, wcol, endrow-wrow+1, endcol-wcol+1);
}
}
}
TQString
Container::layoutTypeToString(int type)
{
switch(type)
{
case HBox: return "HBox";
case VBox: return "VBox";
case Grid: return "Grid";
case HFlow: return "HFlow";
case VFlow: return "VFlow";
default: return "NoLayout";
}
}
Container::LayoutType
Container::stringToLayoutType(const TQString &name)
{
if(name == "HBox") return HBox;
if(name == "VBox") return VBox;
if(name == "Grid") return Grid;
if(name == "HFlow") return HFlow;
if(name == "VFlow") return VFlow;
return NoLayout;
}
/// Drawing functions used by eventFilter
void
Container::drawConnection(TQMouseEvent *mev)
{
if(mev->button() != Qt::LeftButton)
{
FormManager::self()->resetCreatedConnection();
return;
}
// First click, we select the sender and display menu to choose signal
if(FormManager::self()->createdConnection()->sender().isNull())
{
FormManager::self()->createdConnection()->setSender(m_moving->name());
if(m_form->formWidget())
{
m_form->formWidget()->initBuffer();
m_form->formWidget()->highlightWidgets(m_moving, 0/*, TQPoint()*/);
}
FormManager::self()->createSignalMenu(m_moving);
return;
}
// the user clicked outside the menu, we cancel the connection
if(FormManager::self()->createdConnection()->signal().isNull())
{
FormManager::self()->stopCreatingConnection();
return;
}
// second click to choose the receiver
if(FormManager::self()->createdConnection()->receiver().isNull())
{
FormManager::self()->createdConnection()->setReceiver(m_moving->name());
FormManager::self()->createSlotMenu(m_moving);
m_container->repaint();
return;
}
// the user clicked outside the menu, we cancel the connection
if(FormManager::self()->createdConnection()->slot().isNull())
{
FormManager::self()->stopCreatingConnection();
return;
}
}
void
Container::drawSelectionRect(TQMouseEvent *mev)
{
//finish drawing unclipped selection rectangle: clear the surface
if(m_form->formWidget())
m_form->formWidget()->clearForm();
int topx = (m_insertBegin.x() < mev->x()) ? m_insertBegin.x() : mev->x();
int topy = (m_insertBegin.y() < mev->y()) ? m_insertBegin.y() : mev->y();
int botx = (m_insertBegin.x() > mev->x()) ? m_insertBegin.x() : mev->x();
int boty = (m_insertBegin.y() > mev->y()) ? m_insertBegin.y() : mev->y();
TQRect r = TQRect(TQPoint(topx, topy), TQPoint(botx, boty));
setSelectedWidget(m_container, false);
TQWidget *widgetToSelect = 0;
// We check which widgets are in the rect and select them
for(ObjectTreeItem *item = m_tree->children()->first(); item; item = m_tree->children()->next())
{
TQWidget *w = item->widget();
if(!w)
continue;
if(w->geometry().intersects(r) && w != m_container) {
if (widgetToSelect)
setSelectedWidget(widgetToSelect, true/*add*/, false/*raise*/, true/*moreWillBeSelected*/);
widgetToSelect = w; //select later
}
}
if (widgetToSelect) //the last one left
setSelectedWidget(widgetToSelect, true/*add*/, false/*raise*/, false/*!moreWillBeSelected*/);
m_insertRect = TQRect();
m_state = DoingNothing;
m_container->repaint();
}
void
Container::drawInsertRect(TQMouseEvent *mev, TQObject *s)
{
int tmpx, tmpy;
TQPoint pos = TQT_TQWIDGET(s)->mapTo(m_container, mev->pos());
int gridX = m_form->gridSize();
int gridY = m_form->gridSize();
if(!FormManager::self()->snapWidgetsToGrid() || (mev->state() == (Qt::LeftButton|ControlButton|AltButton)) )
{
tmpx = pos.x();
tmpy = pos.y();
}
else
{
tmpx = int( (float) pos.x() / ((float)gridX) + 0.5);
tmpx *= gridX;
tmpy = int( (float)pos.y() / ((float)gridY) + 0.5);
tmpy *= gridX;
}
int topx = (m_insertBegin.x() < tmpx) ? m_insertBegin.x() : tmpx;
int topy = (m_insertBegin.y() < tmpy) ? m_insertBegin.y() : tmpy;
int botx = (m_insertBegin.x() > tmpx) ? m_insertBegin.x() : tmpx;
int boty = (m_insertBegin.y() > tmpy) ? m_insertBegin.y() : tmpy;
m_insertRect = TQRect(TQPoint(topx, topy), TQPoint(botx, boty));
if(m_insertRect.x() < 0)
m_insertRect.setLeft(0);
if(m_insertRect.y() < 0)
m_insertRect.setTop(0);
if(m_insertRect.right() > m_container->width())
m_insertRect.setRight(m_container->width());
if(m_insertRect.bottom() > m_container->height())
m_insertRect.setBottom(m_container->height());
if(FormManager::self()->isInserting() && m_insertRect.isValid())
{
if(m_form->formWidget())
{
TQRect drawRect = TQRect(m_container->mapTo(m_form->widget(), m_insertRect.topLeft())
, m_insertRect.size());
m_form->formWidget()->drawRect(drawRect, 2);
}
}
}
void
Container::drawCopiedWidgetRect(TQMouseEvent *mev)
{
// We've been dragging a widget, but Ctrl was hold, so we start copy
if(m_state == MovingWidget) {
//FormManager::self()->undo(); // undo last moving
//m_moving->move(m_initialPos);
if(m_form->formWidget()) {
m_container->repaint();
m_form->formWidget()->initBuffer();
}
m_state = CopyingWidget;
}
//m_copyRect.moveTopLeft(m_container->mapFromGlobal( mev->globalPos()) - m_grab);
if(m_form->formWidget()) {
TQValueList<TQRect> rectList;
for(TQWidget *w = m_form->selectedWidgets()->first(); w; w = m_form->selectedWidgets()->next()) {
TQRect drawRect = w->geometry();
TQPoint p = mev->pos() - m_grab;
drawRect.moveBy(p.x(), p.y());
p = m_container->mapTo(m_form->widget(), TQPoint(0, 0));
//drawRect = TQRect( ((TQWidget*)s)->mapTo(m_form->widget(), drawRect.topLeft()), drawRect.size());
drawRect.moveBy(p.x(), p.y());
rectList.append(drawRect);
}
m_form->formWidget()->drawRects(rectList, 2);
}
}
/// Other functions used by eventFilter
void
Container::moveSelectedWidgetsBy(int realdx, int realdy, TQMouseEvent *mev)
{
if (m_form->selectedWidget() == m_form->widget())
return; //do not move top-level widget
const int gridX = m_form->gridSize();
const int gridY = m_form->gridSize();
int dx=realdx, dy=realdy;
for(TQWidget *w = m_form->selectedWidgets()->first(); w; w = m_form->selectedWidgets()->next())
{
if(!w || !w->parent() || w->parent()->inherits(TQTABWIDGET_OBJECT_NAME_STRING) || w->parent()->inherits(TQWIDGETSTACK_OBJECT_NAME_STRING))
continue;
if(w->parentWidget() && w->parentWidget()->isA(TQWIDGETSTACK_OBJECT_NAME_STRING))
{
w = w->parentWidget(); // widget is WidgetStack page
if(w->parentWidget() && w->parentWidget()->inherits(TQTABWIDGET_OBJECT_NAME_STRING)) // widget is tabwidget page
w = w->parentWidget();
}
int tmpx = w->x() + realdx;
int tmpy = w->y() + realdy;
if(tmpx < 0)
dx = TQMAX(0 - w->x(), dx); // because dx is <0
else if(tmpx > w->parentWidget()->width() - gridX)
dx = TQMIN(w->parentWidget()->width() - gridX - w->x(), dx);
if(tmpy < 0)
dy = TQMAX(0 - w->y(), dy); // because dy is <0
else if(tmpy > w->parentWidget()->height() - gridY)
dy = TQMIN(w->parentWidget()->height() - gridY - w->y(), dy);
}
for(TQWidget *w = m_form->selectedWidgets()->first(); w; w = m_form->selectedWidgets()->next())
{
// Don't move tab widget pages (or widget stack pages)
if(!w || !w->parent() || w->parent()->inherits(TQTABWIDGET_OBJECT_NAME_STRING) || w->parent()->inherits(TQWIDGETSTACK_OBJECT_NAME_STRING))
continue;
if(w->parentWidget() && w->parentWidget()->isA(TQWIDGETSTACK_OBJECT_NAME_STRING))
{
w = w->parentWidget(); // widget is WidgetStack page
if(w->parentWidget() && w->parentWidget()->inherits(TQTABWIDGET_OBJECT_NAME_STRING)) // widget is tabwidget page
w = w->parentWidget();
}
int tmpx, tmpy;
if(!FormManager::self()->snapWidgetsToGrid() || (mev && mev->state() == (Qt::LeftButton|ControlButton|AltButton)) )
{
tmpx = w->x() + dx;
tmpy = w->y() + dy;
}
else
{
tmpx = int( float( w->x() + dx) / float(gridX) + 0.5) * gridX;
tmpy = int( float( w->y() + dy) / float(gridY) + 0.5) * gridY;
}
if((tmpx != w->x()) || (tmpy != w->y()))
w->move(tmpx,tmpy);
}
}
////////////
DesignTimeDynamicChildWidgetHandler::DesignTimeDynamicChildWidgetHandler()
: m_item(0)
{
}
DesignTimeDynamicChildWidgetHandler::~DesignTimeDynamicChildWidgetHandler()
{
}
void
DesignTimeDynamicChildWidgetHandler::childWidgetAdded(TQWidget* w)
{
if (m_item) {
installRecursiveEventFilter(TQT_TQOBJECT(w), m_item->eventEater());
}
}
#include "container.moc"