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307 lines
8.5 KiB
307 lines
8.5 KiB
/***************************************************************************
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* Copyright (C) 2005 by Zack Rusin <zrusin@kde.org> *
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* Sami Kyostil <skyostil@kempele.fi> *
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* Aaron J. Seigo <aseigo@kde.org> *
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* Martin Pfeiffer <hubipete@gmx.net> *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
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***************************************************************************/
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#include "kalziumtip.h"
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#include "kalziumutils.h"
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#include "element.h"
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#include <tqapplication.h>
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#include <tqpixmap.h>
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#include <tqimage.h>
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#include <tqsimplerichtext.h>
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#include <tqpainter.h>
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#include <tqdesktopwidget.h>
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#include <kdialog.h>
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#include <kdebug.h>
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#include <kglobal.h>
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#include <kiconloader.h>
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#include <klocale.h>
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#include <kstandarddirs.h>
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KalziumTip::KalziumTip( TQWidget * parent, const char * name, WFlags f ) : TQWidget( parent, name, f )
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{
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setFocusPolicy(TQ_NoFocus); //the widget don't get the keyboard focus
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setBackgroundMode(NoBackground); // widget has no background
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resize(0,0);
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hide(); //initailly hide it
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m_richText = 0;
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m_noElemIcon = TDEGlobal::iconLoader()->loadIcon( "orbits", TDEIcon::NoGroup, 64 );
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setMouseTracking(true); // receice mouse move events
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connect(&m_frameTimer, TQT_SIGNAL(timeout()), TQT_SLOT(internalUpdate()));
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}
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void KalziumTip::showTip( TQPoint mouse, Element* element, int visibleWidth, int visibleHeight )
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{
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TQWidget *p = 0;
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if ( dynamic_cast<TQWidget*>( parent() ) )
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p = TQT_TQWIDGET( parent() );
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if ( p )
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{
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if ( mouse.y() + size().height() > visibleHeight )
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mouse.setY( mouse.y() - size().height() );
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if ( mouse.x() + size().width() > visibleWidth )
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mouse.setX( mouse.x() - size().width() );
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if ( p->width() < visibleWidth )
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{
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if ( mouse.x() + size().width() > p->width() )
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mouse.setX( mouse.x() - size().width() );
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}
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if ( p->height() < visibleHeight )
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{
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if ( mouse.y() + size().height() > p->height() )
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mouse.setY( mouse.y() - size().height() );
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}
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}
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m_mousePointer = mouse;
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if( element == m_tippedElement )
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{
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// Avoid moving out of the current screen
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if (m_mousePointer.x()+width() > tqApp->desktop()->width())
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m_mousePointer.setX(tqApp->desktop()->width() - width());
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move(m_mousePointer); //do not paint again if already painted
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}
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else
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{
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if ( element == 0)
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return;
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m_tippedElement = element;
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loadIcon(); //load icon
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display();
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}
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}
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void KalziumTip::paintEvent(TQPaintEvent* e)
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{
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if (m_dirty)
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{
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displayInternal();
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m_dirty = false;
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}
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TQPainter p(this);
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p.drawPixmap(e->rect().topLeft(), m_pixmap, e->rect());
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}
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void KalziumTip::mouseMoveEvent(TQMouseEvent * e)
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{
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// delegate the mouse move event to the parent (actually the elements table)
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// so that this tooltip doesn't stop to be updated
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e->ignore();
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}
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void KalziumTip::display()
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{
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if( !m_tippedElement )
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return;
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delete m_richText;
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TQString elementname = m_tippedElement->elname();
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TQString number = i18n( "Number: %1" )
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.arg( TQString::number(m_tippedElement->number()) );
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TQString mass = i18n( "Mass: %1" )
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.arg( KalziumUtils::localizedValue(m_tippedElement->mass(), 6) );
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m_richText = new TQSimpleRichText("<qt><h1>" + elementname + "</h1><p>"
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+ number + "</p><p>"
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+ mass +"</p></qt>", font());
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m_richText->setWidth(400);
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m_maskEffect = isVisible() ? Plain : Dissolve;
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m_dissolveSize = 24;
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m_dissolveDelta = -1;
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displayInternal();
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m_frameTimer.start(500/30);
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move(m_mousePointer);
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show();
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}
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void KalziumTip::displayInternal()
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{
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if (!m_richText)
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return;
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// determine text rectangel sizes
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TQRect textRect(0,0,0,0);
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textRect.setWidth(m_richText->widthUsed());
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textRect.setHeight(m_richText->height());
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//moves the rect
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textRect.moveBy(-textRect.left(), -textRect.top());
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// add the new coordinates
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textRect.addCoords(0,0,2,2);
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int margin = KDialog::marginHint();
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int height = TQMAX(m_icon.height(), textRect.height()) + 2 * margin;
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int textX = 2 + m_icon.width() + 2 * margin;
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int width = textX + textRect.width() + margin;
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int textY = (height - textRect.height()) / 2;
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//resize pixmap, mask and widget
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m_mask.resize(width, height);
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m_pixmap.resize(width, height);
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resize(width, height);
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// create and set transparency mask
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switch(m_maskEffect)
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{
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case Plain:
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plainMask();
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break;
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case Dissolve:
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dissolveMask();
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break;
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}
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// draw background
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TQPainter bufferPainter(&m_pixmap);
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bufferPainter.setPen(TQt::black);
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bufferPainter.setBrush(backgroundColor());
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bufferPainter.drawRoundRect(0, 0, width, height,
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1600 / width, 1600 / height);
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// draw icon if present
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if (!m_icon.isNull())
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{
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bufferPainter.drawPixmap(margin,
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margin,
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m_icon, 0, 0,
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m_icon.width(), m_icon.height());
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}
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// draw text shadow
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TQColorGroup cg = colorGroup();
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cg.setColor(TQColorGroup::Text, cg.background().dark(115));
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int shadowOffset = TQApplication::reverseLayout() ? -1 : 1;
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m_richText->draw(&bufferPainter, 5 + textX + shadowOffset, textY + 1, TQRect(), cg);
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// draw text
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cg = colorGroup();
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m_richText->draw(&bufferPainter, 5 + textX, textY, rect(), cg);
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}
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void KalziumTip::dissolveMask()
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{
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TQPainter maskPainter(&m_mask);
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m_mask.fill(TQt::black);
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maskPainter.setBrush(TQt::white);
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maskPainter.setPen(TQt::white);
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maskPainter.drawRoundRect(m_mask.rect(), 1600 / m_mask.rect().width(),
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1600 / m_mask.rect().height());
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m_dissolveSize += m_dissolveDelta;
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if (m_dissolveSize > 0)
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{
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maskPainter.setRasterOp(TQt::EraseROP);
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int x, y, s;
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const int size = 16;
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const int heightsize = size + height();
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for (y = 0; y < heightsize; y += size)
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{
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x = width();
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s = m_dissolveSize * x / 128;
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for (; x > -size; x -= size, s -= 2)
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{
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if (s < 0)
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{
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s = 0;
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}
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maskPainter.drawEllipse(x - s / 2, y - s / 2, s, s);
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}
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}
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}
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else if (m_dissolveSize < 0)
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{
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m_frameTimer.stop();
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m_dissolveDelta = 1;
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}
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setMask(m_mask);
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}
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void KalziumTip::hide()
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{
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m_frameTimer.stop();
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m_tippedElement = 0;
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TQWidget::hide();
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}
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void KalziumTip::plainMask()
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{
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TQPainter maskPainter(&m_mask);
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m_mask.fill(TQt::black);
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maskPainter.setBrush(TQt::white);
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maskPainter.setPen(TQt::white);
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maskPainter.drawRoundRect(m_mask.rect(), 1600 / m_mask.rect().width(),
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1600 / m_mask.rect().height());
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setMask(m_mask);
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m_frameTimer.stop();
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}
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void KalziumTip::internalUpdate()
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{
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m_dirty = true;
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update();
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}
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void KalziumTip::loadIcon()
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{
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TQString iconpath = locate( "data" , "kalzium/elempics/" + m_tippedElement->symbol() + ".jpg" );
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if ( !iconpath.isEmpty() )
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{
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TQImage img ( iconpath, "JPEG" );
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img = img.smoothScale ( 128, 128, TQ_ScaleMin );
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m_icon.convertFromImage( img );
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}
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else
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{
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m_icon = m_noElemIcon;
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}
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}
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#include "kalziumtip.moc"
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