447 lines
12 KiB
C++
447 lines
12 KiB
C++
/***************************************************************************
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* Copyright (c) 2007 Werner Mayer <wmayer[at]users.sourceforge.net> *
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* *
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* This file is part of the FreeCAD CAx development system. *
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* *
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* This library is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU Library General Public *
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* License as published by the Free Software Foundation; either *
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* version 2 of the License, or (at your option) any later version. *
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* *
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* This library 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 Library General Public License for more details. *
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* *
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* You should have received a copy of the GNU Library General Public *
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* License along with this library; see the file COPYING.LIB. If not, *
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* write to the Free Software Foundation, Inc., 59 Temple Place, *
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* Suite 330, Boston, MA 02111-1307, USA *
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* *
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***************************************************************************/
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#include "PreCompiled.h"
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#ifndef _PreComp_
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# include <QMenu>
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# include <QMouseEvent>
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# include <Inventor/nodes/SoCamera.h>
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#endif
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#include <Inventor/SbVec2s.h>
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#include "View3DInventorViewer.h"
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#include "Flag.h"
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using namespace Gui;
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/* TRANSLATOR Gui::Flag */
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// TODO: Rename to Annotation
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// Support transparency
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// Embed complete widgets
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Flag::Flag(QWidget* parent)
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: QtGLWidget(parent), coord(0.0f, 0.0f, 0.0f)
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{
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this->setFixedHeight(20);
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#if defined(HAVE_QT5_OPENGL)
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setAutoFillBackground(true);
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#endif
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}
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Flag::~Flag()
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{
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}
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void Flag::initializeGL()
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{
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const QPalette& p = this->palette();
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#if !defined(HAVE_QT5_OPENGL)
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qglClearColor(p.color(QPalette::Window));
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#else
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QColor c(p.color(QPalette::Window));
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glClearColor(c.redF(), c.greenF(), c.blueF(), c.alphaF());
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#endif
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}
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void Flag::paintGL()
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{
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#if !defined(HAVE_QT5_OPENGL)
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const QPalette& p = this->palette();
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glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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qglColor(p.color(QPalette::Text));
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renderText(10,15,this->text);
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#else
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QOpenGLWidget::paintGL();
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#endif
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}
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void Flag::paintEvent(QPaintEvent* e)
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{
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#if !defined(HAVE_QT5_OPENGL)
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QtGLWidget::paintEvent(e);
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#else
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const QPalette& p = this->palette();
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QColor c(p.color(QPalette::Text));
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QPainter painter;
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painter.begin(this);
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painter.setRenderHint(QPainter::Antialiasing);
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painter.fillRect(e->rect(), p.color(QPalette::Window));
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painter.setPen(c);
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painter.drawText(10, 15, this->text);
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painter.end();
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#endif
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}
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void Flag::resizeGL(int width, int height)
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{
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Q_UNUSED(width);
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Q_UNUSED(height);
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}
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void Flag::setOrigin(const SbVec3f& v)
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{
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this->coord = v;
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}
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const SbVec3f& Flag::getOrigin() const
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{
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return this->coord;
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}
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void Flag::drawLine (View3DInventorViewer* v, int tox, int toy)
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{
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if (!isVisible())
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return;
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// Get position of line
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QSize s = parentWidget()->size();
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SbVec2s view(s.width(), s.height());
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int fromx = pos().x();
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int fromy = pos().y() + height()/2;
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if (false) fromx += width();
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GLPainter p;
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p.begin(v->getGLWidget());
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#if !defined(HAVE_QT5_OPENGL)
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p.setDrawBuffer(GL_BACK);
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#endif
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// the line
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p.setLineWidth(1.0f);
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p.drawLine(fromx, fromy, tox, toy);
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// the point
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p.setPointSize(3.0f);
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p.drawPoint(tox, toy);
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p.end();
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}
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void Flag::setText(const QString& t)
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{
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this->text = t;
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}
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void Flag::resizeEvent(QResizeEvent* e)
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{
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QtGLWidget::resizeEvent(e);
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}
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void Flag::mouseMoveEvent(QMouseEvent *e)
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{
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if (e->buttons() & Qt::LeftButton) {
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move(e->globalPos() - dragPosition);
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e->accept();
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#if defined(HAVE_QT5_OPENGL)
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View3DInventorViewer* viewer = dynamic_cast<View3DInventorViewer*>(parentWidget());
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if (viewer)
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viewer->getSoRenderManager()->scheduleRedraw();
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#endif
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}
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}
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void Flag::mousePressEvent(QMouseEvent *e)
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{
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if (e->button() == Qt::LeftButton) {
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dragPosition = e->globalPos() - frameGeometry().topLeft();
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e->accept();
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}
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}
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void Flag::contextMenuEvent(QContextMenuEvent * e)
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{
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QMenu menu(this);
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QAction* topleft = menu.addAction(tr("Top left"));
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topleft->setCheckable(true);
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QAction* botleft = menu.addAction(tr("Bottom left"));
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botleft->setCheckable(true);
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QAction* topright = menu.addAction(tr("Top right"));
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topright->setCheckable(true);
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QAction* botright = menu.addAction(tr("Bottom right"));
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botright->setCheckable(true);
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menu.addSeparator();
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QAction* remove = menu.addAction(tr("Remove"));
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QAction* select = menu.exec(e->globalPos());
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if (remove == select)
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this->deleteLater();
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}
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QSize Flag::sizeHint() const
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{
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int w = 100;
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int h = 20;
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QFontMetrics metric(this->font());
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QRect r = metric.boundingRect(text);
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w = std::max<int>(w, r.width()+20);
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h = std::max<int>(h, r.height());
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return QSize(w, h);
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}
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// ------------------------------------------------------------------------
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FlagLayout::FlagLayout(QWidget *parent, int margin, int spacing)
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: QLayout(parent)
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{
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setMargin(margin);
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setSpacing(spacing);
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}
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FlagLayout::FlagLayout(int spacing)
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{
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setSpacing(spacing);
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}
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FlagLayout::~FlagLayout()
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{
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QLayoutItem *l;
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while ((l = takeAt(0)))
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delete l;
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}
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void FlagLayout::addItem(QLayoutItem *item)
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{
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add(item, TopLeft);
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}
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void FlagLayout::addWidget(QWidget *widget, Position position)
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{
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add(new QWidgetItem(widget), position);
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}
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Qt::Orientations FlagLayout::expandingDirections() const
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{
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return Qt::Horizontal | Qt::Vertical;
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}
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bool FlagLayout::hasHeightForWidth() const
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{
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return false;
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}
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int FlagLayout::count() const
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{
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return list.size();
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}
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QLayoutItem *FlagLayout::itemAt(int index) const
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{
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ItemWrapper *wrapper = list.value(index);
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if (wrapper)
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return wrapper->item;
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else
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return 0;
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}
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QSize FlagLayout::minimumSize() const
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{
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return calculateSize(MinimumSize);
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}
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void FlagLayout::setGeometry(const QRect &rect)
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{
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int topHeight = 0;
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int bottomHeight = 0;
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QLayout::setGeometry(rect);
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// left side
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for (int i = 0; i < list.size(); ++i) {
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ItemWrapper *wrapper = list.at(i);
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QLayoutItem *item = wrapper->item;
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Position position = wrapper->position;
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if (position == TopLeft) {
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topHeight += spacing();
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item->setGeometry(QRect(rect.x() + spacing(), topHeight,
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item->sizeHint().width(), item->sizeHint().height()));
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topHeight += item->geometry().height();
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} else if (position == BottomLeft) {
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bottomHeight += item->geometry().height() + spacing();
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item->setGeometry(QRect(rect.x() + spacing(), rect.height() - bottomHeight,
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item->sizeHint().width(), item->sizeHint().height()));
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}
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}
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// right side
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topHeight = 0;
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bottomHeight = 0;
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for (int i = 0; i < list.size(); ++i) {
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ItemWrapper *wrapper = list.at(i);
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QLayoutItem *item = wrapper->item;
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Position position = wrapper->position;
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int rightpos = item->sizeHint().width() + spacing();
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if (position == TopRight) {
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topHeight += spacing();
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item->setGeometry(QRect(rect.x() + rect.width() - rightpos, topHeight,
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item->sizeHint().width(), item->sizeHint().height()));
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topHeight += item->geometry().height();
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} else if (position == BottomRight) {
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bottomHeight += item->geometry().height() + spacing();
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item->setGeometry(QRect(rect.x() + rect.width() - rightpos, rect.height() - bottomHeight,
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item->sizeHint().width(), item->sizeHint().height()));
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}
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}
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}
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QSize FlagLayout::sizeHint() const
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{
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return calculateSize(SizeHint);
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}
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QLayoutItem *FlagLayout::takeAt(int index)
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{
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if (index >= 0 && index < list.size()) {
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ItemWrapper *layoutStruct = list.takeAt(index);
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return layoutStruct->item;
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}
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return 0;
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}
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void FlagLayout::add(QLayoutItem *item, Position position)
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{
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list.append(new ItemWrapper(item, position));
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}
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QSize FlagLayout::calculateSize(SizeType sizeType) const
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{
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QSize totalSize;
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for (int i = 0; i < list.size(); ++i) {
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ItemWrapper *wrapper = list.at(i);
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QSize itemSize;
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if (sizeType == MinimumSize)
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itemSize = wrapper->item->minimumSize();
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else // (sizeType == SizeHint)
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itemSize = wrapper->item->sizeHint();
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totalSize.rheight() += itemSize.height();
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totalSize.rwidth() = qMax<int>(totalSize.width(),itemSize.width());
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}
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return totalSize;
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}
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TYPESYSTEM_SOURCE_ABSTRACT(Gui::GLFlagWindow, Gui::GLGraphicsItem)
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GLFlagWindow::GLFlagWindow(View3DInventorViewer* view) : _viewer(view), _flagLayout(0)
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{
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}
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GLFlagWindow::~GLFlagWindow()
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{
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deleteFlags();
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if (_flagLayout)
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_flagLayout->deleteLater();
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}
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void GLFlagWindow::deleteFlags()
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{
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if (_flagLayout) {
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int ct = _flagLayout->count();
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for (int i=0; i<ct;i++) {
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QWidget* flag = _flagLayout->itemAt(0)->widget();
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if (flag) {
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_flagLayout->removeWidget(flag);
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flag->deleteLater();
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}
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}
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#if defined(HAVE_QT5_OPENGL)
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if (ct > 0)
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_viewer->getSoRenderManager()->scheduleRedraw();
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#endif
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}
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}
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void GLFlagWindow::addFlag(Flag* item, FlagLayout::Position pos)
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{
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if (!_flagLayout) {
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_flagLayout = new FlagLayout(3);
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_viewer->setLayout(_flagLayout);
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}
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item->setParent(_viewer);
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_flagLayout->addWidget(item, pos);
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item->show();
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_viewer->getSoRenderManager()->scheduleRedraw();
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}
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void GLFlagWindow::removeFlag(Flag* item)
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{
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if (_flagLayout) {
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_flagLayout->removeWidget(item);
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#if defined(HAVE_QT5_OPENGL)
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_viewer->getSoRenderManager()->scheduleRedraw();
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#endif
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}
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}
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Flag* GLFlagWindow::getFlag(int index) const
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{
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if (_flagLayout) {
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QWidget* flag = _flagLayout->itemAt(index)->widget();
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return qobject_cast<Flag*>(flag);
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}
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return 0;
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}
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int GLFlagWindow::countFlags() const
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{
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if (_flagLayout) {
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return _flagLayout->count();
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}
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return 0;
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}
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void GLFlagWindow::paintGL()
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{
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// draw lines for the flags
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if (_flagLayout) {
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// it can happen that the GL widget gets replaced internally (SoQt only, not with quarter) which
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// causes to destroy the FlagLayout instance
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int ct = _flagLayout->count();
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const SbViewportRegion vp = _viewer->getSoRenderManager()->getViewportRegion();
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SbVec2s size = vp.getViewportSizePixels();
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float aspectratio = float(size[0])/float(size[1]);
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SbViewVolume vv = _viewer->getSoRenderManager()->getCamera()->getViewVolume(aspectratio);
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for (int i=0; i<ct;i++) {
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Flag* flag = qobject_cast<Flag*>(_flagLayout->itemAt(i)->widget());
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if (flag) {
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SbVec3f pt = flag->getOrigin();
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vv.projectToScreen(pt, pt);
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int tox = (int)(pt[0] * size[0]);
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int toy = (int)((1.0f-pt[1]) * size[1]);
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flag->drawLine(_viewer, tox, toy);
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}
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}
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}
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}
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#include "moc_Flag.cpp"
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