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tdeaccessibility/kmouth/phrasebook/phrasetree.cpp

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/***************************************************************************
phrasetree.cpp - description
-------------------
begin : Don Okt 24 2002
copyright : (C) 2002 by Gunnar Schmi Dt
email : kmouth@schmi-dt.de
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#include <tdelocale.h>
#include <tdeconfig.h>
#include <tdeaction.h>
#include <tdestdaccel.h>
#include <tdeshortcutlist.h>
#include <tdeactionshortcutlist.h>
#include <kiconloader.h>
#include <tdemessagebox.h>
#include "phrasetree.h"
#include "phrasebookdialog.h"
#include "phrasebook.h"
PhraseTreeItem::PhraseTreeItem (TQListView *parent, TQListViewItem *after, TQString phrase, TDEShortcut shortcut, TQPixmap icon)
: TDEListViewItem (parent, after, phrase)
{
isPhraseValue = true;
cutValue = shortcut;
setText(1, cutValue.toString());
setPixmap(0, icon);
setExpandable (false);
}
PhraseTreeItem::PhraseTreeItem (TQListViewItem *parent, TQListViewItem *after, TQString phrase, TDEShortcut shortcut, TQPixmap icon)
: TDEListViewItem (parent, after, phrase)
{
isPhraseValue = true;
cutValue = shortcut;
setText(1, cutValue.toString());
setPixmap(0, icon);
setExpandable (false);
}
PhraseTreeItem::PhraseTreeItem (TQListView *parent, TQListViewItem *after, TQString name, TQPixmap icon)
: TDEListViewItem (parent, after, name)
{
isPhraseValue = false;
setPixmap(0, icon);
setExpandable (true);
}
PhraseTreeItem::PhraseTreeItem (TQListViewItem *parent, TQListViewItem *after, TQString name, TQPixmap icon)
: TDEListViewItem (parent, after, name)
{
isPhraseValue = false;
setPixmap(0, icon);
setExpandable (true);
}
bool PhraseTreeItem::isPhrase () {
return isPhraseValue;
}
TDEShortcut PhraseTreeItem::cut () {
return cutValue;
}
void PhraseTreeItem::setCut (TDEShortcut cut) {
cutValue = cut;
setText(1, cut.toString());
}
// ***************************************************************************
PhraseTree::PhraseTree (TQWidget *parent, const char *name)
: TDEListView (parent, name)
{
phrasebook_open = TDEGlobal::iconLoader()->loadIcon("phrasebook", TDEIcon::Small);
phrasebook_closed = TDEGlobal::iconLoader()->loadIcon("phrasebook_closed", TDEIcon::Small);
phrase = TDEGlobal::iconLoader()->loadIcon("phrase", TDEIcon::Small);
connect (this, TQT_SIGNAL(expanded (TQListViewItem *)), this, TQT_SLOT(itemExpanded (TQListViewItem *)));
connect (this, TQT_SIGNAL(collapsed (TQListViewItem *)), this, TQT_SLOT(itemCollapsed (TQListViewItem *)));
}
PhraseTree::~PhraseTree (){
}
namespace PhraseTreePrivate {
TQListViewItem *prevSibling (TQListViewItem *item) {
TQListViewItem *parent = item->parent();
TQListViewItem *above = item->itemAbove();
if (above == parent)
return 0;
while (above->parent() != parent)
above = above->parent();
return above;
}
bool findAbovePosition (TQListViewItem *item,
TQListViewItem **newParent,
TQListViewItem **newAbove)
{
if (item == 0)
return false;
TQListViewItem *parent = item->parent();
TQListViewItem *above = item->itemAbove();
if (above == 0)
return false;
else if (above == parent) {
*newParent = parent->parent();
*newAbove = prevSibling (parent);
return true;
}
else if (above->parent() == parent) {
*newParent = parent;
*newAbove = prevSibling (above);
return true;
}
else {
while (above->parent()->parent() != parent)
above = above->parent();
*newParent = above->parent();
*newAbove = above;
return true;
}
}
bool findBelowPosition (TQListViewItem *item,
TQListViewItem **newParent,
TQListViewItem **newAbove)
{
if (item == 0)
return false;
TQListViewItem *parent = item->parent();
TQListViewItem *below = item->nextSibling();
if (parent == 0 && below == 0)
return false;
else if (parent != 0 && below == 0) {
*newParent = parent->parent();
*newAbove = parent;
return true;
}
else if (below->isOpen()) {
*newParent = below;
*newAbove = 0;
return true;
}
else {
*newParent = parent;
*newAbove = below;
return true;
}
}
bool findRightPosition (TQListViewItem *item,
TQListViewItem **newParent,
TQListViewItem **newAbove)
{
if (item == 0)
return false;
TQListViewItem *above = prevSibling (item);
if (above == 0)
return false;
else if (((PhraseTreeItem *)above)->isPhrase())
return false;
else {
above->setOpen(true);
*newParent = above;
*newAbove = 0;
above = (*newParent)->firstChild();
while (above != 0) {
*newAbove = above;
above = above->nextSibling();
}
return true;
}
}
bool findLeftPosition (TQListViewItem *item,
TQListViewItem **newParent,
TQListViewItem **newAbove)
{
if (item == 0)
return false;
TQListViewItem *parent = item->parent();
if (parent == 0)
return false;
else {
*newParent = parent->parent();
*newAbove = parent;
return true;
}
}
}
void PhraseTree::moveItem (TQListViewItem *item,
TQListViewItem *parent,
TQListViewItem *above)
{
if (item != 0) {
if (item->parent() == 0)
takeItem (item);
else
item->parent()->takeItem (item);
if (parent == 0)
insertItem (item);
else
parent->insertItem (item);
item->moveItem(above);
}
}
bool PhraseTree::hasSelectedItems() {
TQListViewItem *i = firstChild();
if ( !i )
return false;
int level = 0;
do {
if (i->isSelected())
return true;
if (i->firstChild() != 0) {
i = i->firstChild();
level++;
}
else {
while ((i != 0) && (i->nextSibling() == 0)) {
i = i->parent();
level--;
}
if (i != 0)
i = i->nextSibling();
}
}
while (i != 0);
return false;
}
void PhraseTree::deleteSelectedItems() {
TQListViewItem *i = firstChild();
if ( !i )
return;
TQListViewItem *deleteItem = 0;
do {
if (i->isSelected())
deleteItem = i;
if ((i->firstChild() != 0) && (!i->isSelected())) {
i = i->firstChild();
}
else {
while ((i != 0) && (i->nextSibling() == 0)) {
i = i->parent();
}
if (i != 0)
i = i->nextSibling();
}
if (deleteItem != 0) {
delete deleteItem;
deleteItem = 0;
}
}
while (i != 0);
}
void PhraseTree::keyPressEvent (TQKeyEvent *e) {
if ((e->state() & TQt::KeyButtonMask) == TQt::AltButton) {
if (e->key() == TQt::Key_Up) {
TQListViewItem *item = currentItem();
if ((item != 0) && (item->isSelected())) {
TQListViewItem *parent;
TQListViewItem *above;
if (PhraseTreePrivate::findAbovePosition (item, &parent, &above)) {
moveItem(item, parent, above);
setCurrentItem (item);
item->setSelected(true);
}
}
e->accept();
return;
}
else if (e->key() == TQt::Key_Down) {
TQListViewItem *item = currentItem();
if ((item != 0) && (item->isSelected())) {
TQListViewItem *parent;
TQListViewItem *above;
if (PhraseTreePrivate::findBelowPosition (item, &parent, &above)) {
moveItem(item, parent, above);
setCurrentItem (item);
item->setSelected(true);
}
}
e->accept();
return;
}
else if (e->key() == TQt::Key_Left) {
TQListViewItem *item = currentItem();
if ((item != 0) && (item->isSelected())) {
TQListViewItem *parent;
TQListViewItem *above;
if (PhraseTreePrivate::findLeftPosition (item, &parent, &above)) {
moveItem(item, parent, above);
setCurrentItem (item);
item->setSelected(true);
}
}
e->accept();
return;
}
else if (e->key() == TQt::Key_Right) {
TQListViewItem *item = currentItem();
if ((item != 0) && (item->isSelected())) {
TQListViewItem *parent;
TQListViewItem *above;
if (PhraseTreePrivate::findRightPosition (item, &parent, &above)) {
moveItem(item, parent, above);
setCurrentItem (item);
item->setSelected(true);
}
}
e->accept();
return;
}
}
TDEListView::keyPressEvent(e);
}
PhraseTreeItem *PhraseTree::insertPhrase (TQListViewItem *parent, TQListViewItem *after, TQString phrase, TQString shortcut) {
TDEShortcut cut = TDEShortcut(shortcut);
if (isKeyPresent (cut, 0, false))
cut = TDEShortcut(TQString());
if (parent == 0)
return new PhraseTreeItem (this, after, phrase, cut, this->phrase);
else
return new PhraseTreeItem (parent, after, phrase, cut, this->phrase);
}
PhraseTreeItem *PhraseTree::insertBook (TQListViewItem *parent, TQListViewItem *after, TQString name) {
if (parent == 0)
return new PhraseTreeItem (this, after, name, phrasebook_closed);
else
return new PhraseTreeItem (parent, after, name, phrasebook_closed);
}
TQListViewItem *PhraseTree::addBook (TQListViewItem *parent, TQListViewItem *after, PhraseBook *book) {
TQListViewItem *last = after;
int level = 0;
PhraseBookEntryList::iterator it;
for (it = book->begin(); it != book->end(); ++it) {
int newLevel = (*it).getLevel();
while (level < newLevel) {
parent = insertBook(parent, last, "");
last = 0;
level++;
}
while (level > newLevel) {
last = parent;
if (parent != 0)
parent = parent->parent();
level--;
}
if ((*it).isPhrase()) {
Phrase phrase = (*it).getPhrase();
last = insertPhrase (parent, last, phrase.getPhrase(), phrase.getShortcut());
}
else {
Phrase phrase = (*it).getPhrase();
parent = insertBook(parent, last, phrase.getPhrase());
last = 0;
level++;
}
}
while (level > 0) {
last = parent;
if (parent != 0)
parent = parent->parent();
level--;
}
return last;
}
void PhraseTree::fillBook (PhraseBook *book, bool respectSelection) {
TQListViewItem *i = firstChild();
int level = 0;
if ( !i )
return;
do {
if (i->isSelected() || !respectSelection || level > 0) {
PhraseTreeItem *it = (PhraseTreeItem *)i;
Phrase phrase(it->text(0), it->cut().toStringInternal());
*book += PhraseBookEntry(phrase, level, it->isPhrase());
}
if (i->firstChild() != 0) {
if (i->isSelected() || !respectSelection || level > 0)
level++;
i = i->firstChild();
}
else {
while ((i != 0) && (i->nextSibling() == 0)) {
i = i->parent();
if (level > 0)
level--;
}
if (i != 0)
i = i->nextSibling();
}
}
while (i != 0);
}
TQDragObject *PhraseTree::dragObject () {
return dragObject (true);
}
TQDragObject *PhraseTree::dragObject (bool isDependent) {
PhraseBook book;
fillBook (&book, true);
if (isDependent)
return new PhraseBookDrag(&book, viewport());
return new PhraseBookDrag(&book);
}
bool PhraseTree::acceptDrag (TQDropEvent* event) const {
if (TDEListView::acceptDrag (event))
return true;
else
return PhraseBookDrag::canDecode(event);
}
// Returns iSeq index if cut2 has a sequence of equal or higher priority
// to a sequence in cut, else -1
static int keyConflict (const TDEShortcut& cut, const TDEShortcut& cut2) {
for (uint iSeq = 0; iSeq < cut.count(); iSeq++) {
for (uint iSeq2 = 0; iSeq2 <= iSeq && iSeq2 < cut2.count(); iSeq2++) {
if (cut.seq(iSeq) == cut2.seq(iSeq2))
return iSeq;
}
}
return -1;
}
void PhraseTree::_warning (const KKeySequence& cut, TQString sAction, TQString sTitle) {
sAction = sAction.stripWhiteSpace();
TQString s =
i18n("The '%1' key combination has already been allocated "
"to %2.\n"
"Please choose a unique key combination.").
arg(cut.toString()).arg(sAction);
KMessageBox::sorry( this, s, sTitle );
}
bool PhraseTree::isStdAccelPresent (const TDEShortcut& cut, bool warnUser) {
for (uint iSeq = 0; iSeq < cut.count(); iSeq++) {
const KKeySequence& seq = cut.seq(iSeq);
TDEStdAccel::StdAccel id = TDEStdAccel::findStdAccel( seq );
if( id != TDEStdAccel::AccelNone
&& keyConflict (cut, TDEStdAccel::shortcut(id)) > -1)
{
if (warnUser)
_warning (cut.seq(iSeq),
i18n("the standard \"%1\" action").arg(TDEStdAccel::label(id)),
i18n("Conflict with Standard Application Shortcut"));
return true;
}
}
return false;
}
bool PhraseTree::isGlobalKeyPresent (const TDEShortcut& cut, bool warnUser) {
TQMap<TQString, TQString> mapEntry = TDEGlobal::config()->entryMap ("Global Shortcuts");
TQMap<TQString, TQString>::Iterator it;
for (it = mapEntry.begin(); it != mapEntry.end(); ++it) {
int iSeq = keyConflict (cut, TDEShortcut(*it));
if (iSeq > -1) {
if (warnUser)
_warning (cut.seq(iSeq),
i18n("the global \"%1\" action").arg(it.key()),
i18n("Conflict with Global Shortcuts"));
return true;
}
}
return false;
}
bool PhraseTree::isPhraseKeyPresent (const TDEShortcut& cut, PhraseTreeItem* cutItem, bool warnUser) {
for (TQListViewItemIterator it(this); it.current(); ++it) {
PhraseTreeItem* item = dynamic_cast<PhraseTreeItem*>(it.current());
if ((item != 0) && (item != cutItem)) {
int iSeq = keyConflict (cut, item->cut());
if (iSeq > -1) {
if (warnUser)
_warning (cut.seq(iSeq),
i18n("an other phrase"),
i18n("Key Conflict"));
return true;
}
}
}
return false;
}
bool PhraseTree::isKeyPresent (const TDEShortcut& cut, PhraseTreeItem* cutItem, bool warnUser) {
if (isStdAccelPresent (cut, warnUser))
return true;
if (isGlobalKeyPresent (cut, warnUser))
return true;
if (isPhraseKeyPresent (cut, cutItem, warnUser))
return true;
return false;
}
void PhraseTree::itemExpanded (TQListViewItem *item) {
PhraseTreeItem *i = (PhraseTreeItem *)item;
if (!i->isPhrase())
i->setPixmap(0, phrasebook_open);
}
void PhraseTree::itemCollapsed (TQListViewItem *item) {
PhraseTreeItem *i = (PhraseTreeItem *)item;
if (!i->isPhrase())
i->setPixmap(0, phrasebook_closed);
}
// ***************************************************************************
#include "phrasetree.moc"