124 lines
3.5 KiB
C++
124 lines
3.5 KiB
C++
/***
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Olive - Non-Linear Video Editor
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Copyright (C) 2019 Olive Team
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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 3 of the License, or
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(at your option) any later version.
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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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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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***/
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#include "nodeviewitem.h"
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#include <QFontMetrics>
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#include <QPainter>
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#include <QStyleOptionGraphicsItem>
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#include "ui/icons/icons.h"
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const int kNodeViewItemBorderWidth = 2;
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const int kNodeViewItemWidth = 250;
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const int kNodeViewItemTextPadding = 4;
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const int kNodeViewItemIconPadding = 12;
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NodeViewItem::NodeViewItem(QGraphicsItem *parent) :
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QGraphicsRectItem(parent),
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node_(nullptr)
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{
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// Set flags for this widget
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setFlag(QGraphicsItem::ItemIsMovable);
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setFlag(QGraphicsItem::ItemIsSelectable);
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// Use the current default font height to size this widget
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QFont f;
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QFontMetrics fm(f);
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setRect(0, 0, kNodeViewItemWidth, fm.height() + kNodeViewItemTextPadding * 2);
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// FIXME: Magic "number"/magic "color" - allow this to be editable by the user
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SetColor(QColor(32, 32, 128));
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}
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void NodeViewItem::SetColor(const QColor &color)
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{
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color_ = color;
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// Create a light gradient based on this color
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UpdateGradient();
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update();
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}
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void NodeViewItem::SetNode(Node *n)
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{
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node_ = n;
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update();
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}
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Node *NodeViewItem::node()
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{
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return node_;
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}
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void NodeViewItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
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{
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// Set up border, which will change color if selected
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QPen pen;
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pen.setWidth(kNodeViewItemBorderWidth);
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if (option->state & QStyle::State_Selected) {
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pen.setColor(widget->palette().highlight().color());
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} else {
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// FIXME: Not configurable?
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pen.setColor(Qt::black);
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}
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// Draw rect
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painter->setPen(pen);
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painter->setBrush(brush());
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painter->drawRect(rect());
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// Draw text
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if (node_ != nullptr) {
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// FIXME: The text is always drawn white assuming the color will be dark - the intention is to provide preset
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// colors that will always be dark for the user to choose, so this value can stay white.
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painter->setPen(Qt::white);
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// Draw the expand icon
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QRectF icon_rect = rect();
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icon_rect.adjust(kNodeViewItemIconPadding,
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kNodeViewItemIconPadding,
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-kNodeViewItemIconPadding,
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-kNodeViewItemIconPadding);
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olive::icon::TriRight.paint(painter, icon_rect.toRect(), Qt::AlignLeft | Qt::AlignVCenter);
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// Draw the text in a rect (the rect is sized around text already in the constructor)
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QRectF text_rect = rect();
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text_rect.adjust(kNodeViewItemIconPadding + icon_rect.height() + kNodeViewItemTextPadding,
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kNodeViewItemTextPadding,
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-kNodeViewItemTextPadding,
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-kNodeViewItemTextPadding);
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painter->drawText(text_rect, Qt::AlignTop | Qt::AlignLeft, node_->Name());
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}
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}
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void NodeViewItem::UpdateGradient()
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{
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QLinearGradient grad(QPointF(0, rect().top()), QPointF(0, rect().bottom()));
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grad.setColorAt(0, color_.lighter(175));
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grad.setColorAt(1, color_);
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setBrush(grad);
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}
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