diff options
Diffstat (limited to 'src/gui/nodeitem.cpp')
-rw-r--r-- | src/gui/nodeitem.cpp | 318 |
1 files changed, 159 insertions, 159 deletions
diff --git a/src/gui/nodeitem.cpp b/src/gui/nodeitem.cpp index d308dd2..b452848 100644 --- a/src/gui/nodeitem.cpp +++ b/src/gui/nodeitem.cpp @@ -1,159 +1,159 @@ -/*
- TikZiT - a GUI diagram editor for TikZ
- Copyright (C) 2018 Aleks Kissinger
-
- 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 3 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, see <https://www.gnu.org/licenses/>.
-*/
-
-#include "tikzit.h"
-#include "nodeitem.h"
-#include "tikzscene.h"
-#include <cmath>
-
-#include <QPen>
-#include <QApplication>
-#include <QBrush>
-#include <QDebug>
-#include <QFont>
-#include <QFontMetrics>
-#include <QPainterPathStroker>
-
-NodeItem::NodeItem(Node *node)
-{
- _node = node;
- setFlag(QGraphicsItem::ItemIsSelectable);
- //setFlag(QGraphicsItem::ItemIsMovable);
- //setFlag(QGraphicsItem::ItemSendsGeometryChanges);
- readPos();
- updateBounds();
-}
-
-void NodeItem::readPos()
-{
- setPos(toScreen(_node->point()));
-}
-
-void NodeItem::writePos()
-{
- _node->setPoint(fromScreen(pos()));
-}
-
-QRectF NodeItem::labelRect() const {
- QString label = _node->label();
- //QFont f("Courier", 9);
- QFontMetrics fm(Tikzit::LABEL_FONT);
-
- QRectF rect = fm.boundingRect(label);
- //rect.adjust(-2,-2,2,2);
- rect.moveCenter(QPointF(0,0));
- return rect;
-}
-
-void NodeItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *, QWidget *)
-{
- if (_node->style()->isNone()) {
- QColor c(180,180,200);
- painter->setPen(QPen(c));
- painter->setBrush(QBrush(c));
- painter->drawEllipse(QPointF(0,0), 1,1);
-
- QPen pen(QColor(180,180,220));
- QVector<qreal> p;
- p << 1.0 << 2.0;
- pen.setDashPattern(p);
- pen.setWidthF(2.0f);
- painter->setPen(pen);
- painter->setBrush(Qt::NoBrush);
- painter->drawPath(shape());
- } else {
- QPen pen(_node->style()->strokeColor());
- pen.setWidth(_node->style()->strokeThickness());
- painter->setPen(pen);
- painter->setBrush(QBrush(_node->style()->fillColor()));
- painter->drawPath(shape());
- }
-
- if (_node->label() != "") {
- QRectF rect = labelRect();
- QPen pen(QColor(200,0,0,120));
- QVector<qreal> d;
- d << 2.0 << 2.0;
- pen.setDashPattern(d);
- painter->setPen(pen);
- painter->setBrush(QBrush(QColor(255,255,100,120)));
- painter->drawRect(rect);
-
- painter->setPen(QPen(Qt::black));
- painter->setFont(Tikzit::LABEL_FONT);
- painter->drawText(rect, Qt::AlignCenter, _node->label());
- }
-
- if (isSelected()) {
- QPainterPath sh = shape();
- QPainterPathStroker stroker;
- stroker.setWidth(4);
- QPainterPath outline = (stroker.createStroke(sh) + sh).simplified();
- painter->setPen(Qt::NoPen);
- painter->setBrush(QBrush(QColor(150,200,255,100)));
- painter->drawPath(outline);
- }
-
-}
-
-QPainterPath NodeItem::shape() const
-{
- QPainterPath path;
- path.addEllipse(QPointF(0,0), GLOBAL_SCALEF * 0.2, GLOBAL_SCALEF * 0.2);
- return path;
-}
-
-// TODO: nodeitem should sync boundingRect()-relevant stuff (label etc) explicitly,
-// to allow prepareGeometryChange()
-QRectF NodeItem::boundingRect() const
-{
- return _boundingRect;
-}
-
-void NodeItem::updateBounds()
-{
- prepareGeometryChange();
- QString label = _node->label();
- if (label != "") {
- QFontMetrics fm(Tikzit::LABEL_FONT);
- QRectF labelRect = fm.boundingRect(label);
- labelRect.moveCenter(QPointF(0, 0));
- _boundingRect = labelRect.united(shape().boundingRect()).adjusted(-4, -4, 4, 4);
- } else {
- _boundingRect = shape().boundingRect().adjusted(-4, -4, 4, 4);
- }
-}
-
-Node *NodeItem::node() const
-{
- return _node;
-}
-
-//QVariant NodeItem::itemChange(GraphicsItemChange change, const QVariant &value)
-//{
-// if (change == ItemPositionChange) {
-// QPointF newPos = value.toPointF();
-// int gridSize = GLOBAL_SCALE / 8;
-// QPointF gridPos(round(newPos.x()/gridSize)*gridSize, round(newPos.y()/gridSize)*gridSize);
-// _node->setPoint(fromScreen(gridPos));
-//
-// return gridPos;
-// } else {
-// return QGraphicsItem::itemChange(change, value);
-// }
-//}
+/* + TikZiT - a GUI diagram editor for TikZ + Copyright (C) 2018 Aleks Kissinger + + 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 3 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, see <https://www.gnu.org/licenses/>. +*/ + +#include "tikzit.h" +#include "nodeitem.h" +#include "tikzscene.h" +#include <cmath> + +#include <QPen> +#include <QApplication> +#include <QBrush> +#include <QDebug> +#include <QFont> +#include <QFontMetrics> +#include <QPainterPathStroker> + +NodeItem::NodeItem(Node *node) +{ + _node = node; + setFlag(QGraphicsItem::ItemIsSelectable); + //setFlag(QGraphicsItem::ItemIsMovable); + //setFlag(QGraphicsItem::ItemSendsGeometryChanges); + readPos(); + updateBounds(); +} + +void NodeItem::readPos() +{ + setPos(toScreen(_node->point())); +} + +void NodeItem::writePos() +{ + _node->setPoint(fromScreen(pos())); +} + +QRectF NodeItem::labelRect() const { + QString label = _node->label(); + //QFont f("Courier", 9); + QFontMetrics fm(Tikzit::LABEL_FONT); + + QRectF rect = fm.boundingRect(label); + //rect.adjust(-2,-2,2,2); + rect.moveCenter(QPointF(0,0)); + return rect; +} + +void NodeItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *, QWidget *) +{ + if (_node->style()->isNone()) { + QColor c(180,180,200); + painter->setPen(QPen(c)); + painter->setBrush(QBrush(c)); + painter->drawEllipse(QPointF(0,0), 1,1); + + QPen pen(QColor(180,180,220)); + QVector<qreal> p; + p << 1.0 << 2.0; + pen.setDashPattern(p); + pen.setWidthF(2.0f); + painter->setPen(pen); + painter->setBrush(Qt::NoBrush); + painter->drawPath(shape()); + } else { + QPen pen(_node->style()->strokeColor()); + pen.setWidth(_node->style()->strokeThickness()); + painter->setPen(pen); + painter->setBrush(QBrush(_node->style()->fillColor())); + painter->drawPath(shape()); + } + + if (_node->label() != "") { + QRectF rect = labelRect(); + QPen pen(QColor(200,0,0,120)); + QVector<qreal> d; + d << 2.0 << 2.0; + pen.setDashPattern(d); + painter->setPen(pen); + painter->setBrush(QBrush(QColor(255,255,100,120))); + painter->drawRect(rect); + + painter->setPen(QPen(Qt::black)); + painter->setFont(Tikzit::LABEL_FONT); + painter->drawText(rect, Qt::AlignCenter, _node->label()); + } + + if (isSelected()) { + QPainterPath sh = shape(); + QPainterPathStroker stroker; + stroker.setWidth(4); + QPainterPath outline = (stroker.createStroke(sh) + sh).simplified(); + painter->setPen(Qt::NoPen); + painter->setBrush(QBrush(QColor(150,200,255,100))); + painter->drawPath(outline); + } + +} + +QPainterPath NodeItem::shape() const +{ + QPainterPath path; + path.addEllipse(QPointF(0,0), GLOBAL_SCALEF * 0.2, GLOBAL_SCALEF * 0.2); + return path; +} + +// TODO: nodeitem should sync boundingRect()-relevant stuff (label etc) explicitly, +// to allow prepareGeometryChange() +QRectF NodeItem::boundingRect() const +{ + return _boundingRect; +} + +void NodeItem::updateBounds() +{ + prepareGeometryChange(); + QString label = _node->label(); + if (label != "") { + QFontMetrics fm(Tikzit::LABEL_FONT); + QRectF labelRect = fm.boundingRect(label); + labelRect.moveCenter(QPointF(0, 0)); + _boundingRect = labelRect.united(shape().boundingRect()).adjusted(-4, -4, 4, 4); + } else { + _boundingRect = shape().boundingRect().adjusted(-4, -4, 4, 4); + } +} + +Node *NodeItem::node() const +{ + return _node; +} + +//QVariant NodeItem::itemChange(GraphicsItemChange change, const QVariant &value) +//{ +// if (change == ItemPositionChange) { +// QPointF newPos = value.toPointF(); +// int gridSize = GLOBAL_SCALE / 8; +// QPointF gridPos(round(newPos.x()/gridSize)*gridSize, round(newPos.y()/gridSize)*gridSize); +// _node->setPoint(fromScreen(gridPos)); +// +// return gridPos; +// } else { +// return QGraphicsItem::itemChange(change, value); +// } +//} |