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/***************************************************************************
 *   Copyright (C) 2003 by S�astien Laot                                 *
 *   slaout@linux62.org                                                    *
 *                                                                         *
 *   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.                                   *
 *                                                                         *
 *   This program 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 General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.             *
 ***************************************************************************/

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <tqpopupmenu.h>
#include <tdelocale.h>

#include <iostream>

#include "focusedwidgets.h"
#include "bnpview.h"
#include "global.h"
#include "basket.h"

#ifdef KeyPress
#undef KeyPress
#endif
#include <tqevent.h>

/** class FocusedTextEdit */

FocusedTextEdit::FocusedTextEdit(bool disableUpdatesOnKeyPress, TQWidget *parent, const char *name)
 : KTextEdit(parent, name),
   m_disableUpdatesOnKeyPress(disableUpdatesOnKeyPress)
{
	setWFlags(TQt::WNoAutoErase); // Does not work, we still need the disableUpdatesOnKeyPress hack!
}

FocusedTextEdit::~FocusedTextEdit()
{
}

/**
  * Thanks to alex.theel@gmx.net, author of TuxCards
  * Code copied from tuxcards-1.2/src/gui/editor/editor.cpp
  *
  ***
  * Override the regular paste() methode, so that lines are
  * not separated by each other with an blank line.
  */
void FocusedTextEdit::paste()
{
	adaptClipboardText(TQClipboard::Selection);
	adaptClipboardText(TQClipboard::Clipboard);

	// If we paste a application/x-qrichtext content starting with a "-" or a "*",
	// then auto-bulletting will crash.
	// So we insert a space to be sure what we paste will not trigger the auto-bulleting.

//	enum AutoFormatting { AutoNone = 0, AutoBulletList = 0x00000001, AutoAll = 0xffffffff }
//	uint oldAutoFormating = autoFormatting();
//	setAutoFormatting(AutoNone);

	TQClipboard *clipboard = TQApplication::clipboard();
	int paragraph;
	int index;
	getCursorPosition(&paragraph, &index);

	bool preventAutoBullet = (index == 0) &&
		(clipboard->data(TQClipboard::Selection)->provides("application/x-qrichtext") ||
		 clipboard->data(TQClipboard::Clipboard)->provides("application/x-qrichtext")   );

	if (preventAutoBullet)
		insert(" ");

	KTextEdit::paste();

	if (preventAutoBullet) {
		int paragraph2;
		int index2;
		getCursorPosition(&paragraph2, &index2);
		setSelection(paragraph, index, paragraph, index + 1);
		removeSelectedText();
		if (paragraph == paragraph2) // We removed one character in that paragraph, so we should move the cursor back to old position... minus one character
			index2--;
		setCursorPosition(paragraph2, index2);
	}


//	setAutoFormatting(oldAutoFormating);
}

/**
  * Thanks to alex.theel@gmx.net, author of TuxCards
  * Code copied from tuxcards-1.2/src/gui/editor/editor.cpp
  *
  ***
  * Auxiliar method that takes the text from the clipboard - using the
  * specified 'mode' -, replaces all '\n' within that text and writes
  * it back to the clipboard.
  */
void FocusedTextEdit::adaptClipboardText(TQClipboard::Mode mode)
{
	TQClipboard *clipboard = TQApplication::clipboard();
	if (!clipboard)
		return;

	if ( (textFormat() == TQt::RichText) && (!clipboard->data(mode)->provides("application/x-qrichtext")) ) {
		TQString text = clipboard->text(mode);
		if (!text.isEmpty()) {
			text = text.replace("\n", TQChar(0x2028));
			clipboard->setText(text, mode);
		}
	}
}


TQTextCursor* FocusedTextEdit::textCursor() const
{
	return KTextEdit::textCursor();
}


void FocusedTextEdit::keyPressEvent(TQKeyEvent *event)
{
	if (event->key() == TQt::Key_Escape) {
		emit escapePressed();
		return;
	// In RichTextFormat mode, [Return] create a new paragraphe.
	// To keep consistency with TextFormat mode (new line on [Return]),
	// we redirect [Return] to simulate [Ctrl+Return] (create a new line in both modes).
	// Create new paragraphes still possible in RichTextFormat mode with [Shift+Enter].
	} else if (event->key() == TQt::Key_Return && event->state() == 0)
		event = new TQKeyEvent(TQEvent::KeyPress, event->key(), event->ascii(), TQt::ControlButton,
		                      event->text(), event->isAutoRepeat(), event->count() );
	else if (event->key() == TQt::Key_Return && event->state() & TQt::ControlButton)
		event = new TQKeyEvent(TQEvent::KeyPress, event->key(), event->ascii(), TQt::ShiftButton,
		                      event->text(), event->isAutoRepeat(), event->count() );

	if (m_disableUpdatesOnKeyPress)
		setUpdatesEnabled(false);
	KTextEdit::keyPressEvent(event);
	// Workarround (for ensuring the cursor to be visible): signal not emited when pressing those keys:
	if (event->key() == TQt::Key_Home || event->key() == TQt::Key_End || event->key() == TQt::Key_PageUp || event->key() == TQt::Key_PageDown) {
		int para;
		int index;
		getCursorPosition(&para, &index);
		emit cursorPositionChanged(para, index);
	}
	if (m_disableUpdatesOnKeyPress) {
		setUpdatesEnabled(true);
		if (text().isEmpty())
			;// emit textChanged(); // TODO: DOESN'T WORK: the editor is not resized down to only one line of text
		else
			ensureCursorVisible();
		updateContents();
	}
}

void FocusedTextEdit::wheelEvent(TQWheelEvent *event)
{
	if (event->delta() > 0 && contentsY() > 0) {
		KTextEdit::wheelEvent(event);
		return;
	} else if (event->delta() < 0 && contentsY() + visibleHeight() < contentsHeight()) {
		KTextEdit::wheelEvent(event);
		return;
	} else
		Global::bnpView->currentBasket()->wheelEvent(event);
}

void FocusedTextEdit::enterEvent(TQEvent *event)
{
	emit mouseEntered();
	KTextEdit::enterEvent(event);
}

TQPopupMenu* FocusedTextEdit::createPopupMenu(const TQPoint &pos)
{
	TQPopupMenu *menu = KTextEdit::createPopupMenu(pos);

	int index = 0;
	int id = 0;
	while (true) {
		id = menu->idAt(index);
		if (id == -1)
			break;
		// Disable Spell Check for rich text editors, because it doesn't work anyway:
		if (textFormat() == TQt::RichText && (menu->text(id) == i18n("Auto Spell Check") || menu->text(id) == i18n("Check Spelling...")))
			menu->setItemEnabled(id, false);
		// Always enable tabulations!:
		if (menu->text(id) == i18n("Allow Tabulations"))
			menu->setItemEnabled(id, false);
		index++;
	}

	// And return the menu:
	return menu;
}

/** class FocusedColorCombo: */

FocusedColorCombo::FocusedColorCombo(TQWidget *parent, const char *name)
 : KColorCombo(parent, name)
{
}

FocusedColorCombo::~FocusedColorCombo()
{
}

void FocusedColorCombo::keyPressEvent(TQKeyEvent *event)
{
	if (event->key() == TQt::Key_Escape)
		emit escapePressed();
	else if (event->key() == TQt::Key_Return)
		emit returnPressed2();
	else
		KColorCombo::keyPressEvent(event);
}

/** class FocusedFontCombo: */

FocusedFontCombo::FocusedFontCombo(TQWidget *parent, const char *name)
 : TDEFontCombo(parent, name)
{
}

FocusedFontCombo::~FocusedFontCombo()
{
}

void FocusedFontCombo::keyPressEvent(TQKeyEvent *event)
{
	if (event->key() == TQt::Key_Escape)
		emit escapePressed();
	else if (event->key() == TQt::Key_Return)
		emit returnPressed2();
	else
		TDEFontCombo::keyPressEvent(event);
}

/** class FocusedComboBox: */

FocusedComboBox::FocusedComboBox(TQWidget *parent, const char *name)
 : KComboBox(parent, name)
{
}

FocusedComboBox::~FocusedComboBox()
{
}

void FocusedComboBox::keyPressEvent(TQKeyEvent *event)
{
	if (event->key() == TQt::Key_Escape)
		emit escapePressed();
	else if (event->key() == TQt::Key_Return)
		emit returnPressed2();
	else
		KComboBox::keyPressEvent(event);
}

/** class FocusedLineEdit: */

FocusedLineEdit::FocusedLineEdit(TQWidget *parent, const char *name)
 : KLineEdit(parent, name)
{
}

FocusedLineEdit::~FocusedLineEdit()
{
}

void FocusedLineEdit::keyPressEvent(TQKeyEvent *event)
{
	if (event->key() == TQt::Key_Escape)
		emit escapePressed();
	else
		KLineEdit::keyPressEvent(event);
}

void FocusedLineEdit::enterEvent(TQEvent *event)
{
	emit mouseEntered();
	KLineEdit::enterEvent(event);
}

#include "focusedwidgets.moc"