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//
// KBlackBox
//
// A simple game inspired by an emacs module
//
/***************************************************************************
* Copyright (c) 1999-2000, Robert Cimrman *
* cimrman3@students.zcu.cz *
* *
* Copyright (c) 2007, Nicolas Roffet *
* nicolas-kde@roffet.com *
* *
* *
* 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 St, Fifth Floor, Boston, MA 02110-1301, USA *
***************************************************************************/
#include "kbbgraphicsitemblackbox.h"
#include <QGraphicsLineItem>
#include <QGraphicsRectItem>
#include <QGraphicsScene>
#include <QGraphicsSceneMouseEvent>
#include <QGraphicsView>
#include "kbbgraphicsitem.h"
#include "kbbscalablegraphicwidget.h"
#include "kbbthememanager.h"
//
// Constructor / Destructor
//
KBBGraphicsItemBlackBox::KBBGraphicsItemBlackBox(QGraphicsView* parent, QGraphicsScene* scene, KBBThemeManager* themeManager, bool isPreview) : QGraphicsRectItem (0)
{
scene->addItem(this);
m_columns = 1;
m_rows = 1;
m_widget = 0;
m_scene = scene;
m_background = new KBBGraphicsItem(KBBScalableGraphicWidget::blackbox, m_scene, themeManager);
//Grid
const KBBScalableGraphicWidget::itemType g = KBBScalableGraphicWidget::blackboxGrid;
m_zValueLines = themeManager->zValue(g);
m_penLines.setColor(themeManager->color(g));
m_penLines.setStyle(themeManager->style(g));
m_penLines.setWidthF(themeManager->width(g));
//accept hover events unless the central widget is a preview (crashes the program)
if (!isPreview)
setAcceptHoverEvents(true);
}
//
// Public
//
void KBBGraphicsItemBlackBox::setSize(const int columns, const int rows)
{
m_background->setTransform(QTransform::fromScale(1./m_columns, 1./m_rows), true);
if ((m_columns!=columns) || (m_rows!=rows)) {
m_columns = columns;
m_rows = rows;
const int b = KBBScalableGraphicWidget::BORDER_SIZE;
const int r = KBBScalableGraphicWidget::RATIO;
setRect(b, b, m_columns*r, m_rows*r);
//remove old lines
for (int i=0; i<m_lines.count(); i++)
delete m_lines[i];
m_lines.clear();
// add new lines
for (int i=0; i<m_columns+1; i++) {
QGraphicsLineItem *item = new QGraphicsLineItem( b + i*r, b, b + i*r, b + m_rows*r, this);
m_lines.append(item);
}
for (int i=0; i<m_rows+1; i++) {
QGraphicsLineItem *item = new QGraphicsLineItem( b, b + i*r, b + m_columns*r, b + i*r, this);
m_lines.append(item);
}
// set line style
for (int i=0; i<m_lines.count(); i++) {
m_lines[i]->setPen(m_penLines);
m_lines[i]->setZValue(m_zValueLines);
}
m_background->setPos(b, b);
}
m_background->setTransform(QTransform::fromScale(m_columns/1., m_rows/1.), true);
}
void KBBGraphicsItemBlackBox::setKBBScalableGraphicWidget(KBBScalableGraphicWidget* w)
{
m_widget = w;
}
//
// Private
//
void KBBGraphicsItemBlackBox::mousePressEvent (QGraphicsSceneMouseEvent* event)
{
int x = (int)(event->pos().x() - KBBScalableGraphicWidget::BORDER_SIZE)/KBBScalableGraphicWidget::RATIO;
int y = (int)(event->pos().y() - KBBScalableGraphicWidget::BORDER_SIZE)/KBBScalableGraphicWidget::RATIO;
if (m_widget!=0)
m_widget->mouseBoxClick(event->button(), x + y*m_columns);
}
void KBBGraphicsItemBlackBox::hoverLeaveEvent(QGraphicsSceneHoverEvent*)
{
m_widget->cursorOff();
}
void KBBGraphicsItemBlackBox::hoverMoveEvent(QGraphicsSceneHoverEvent* event)
{
int x = (int)(event->pos().x() - KBBScalableGraphicWidget::BORDER_SIZE)/KBBScalableGraphicWidget::RATIO;
int y = (int)(event->pos().y() - KBBScalableGraphicWidget::BORDER_SIZE)/KBBScalableGraphicWidget::RATIO;
emit hoverMoved(x + y*m_columns);
}
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