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/*
* This file is part of KQuickCharts
* SPDX-FileCopyrightText: 2019 Arjen Hiemstra <ahiemstra@heimr.nl>
*
* SPDX-License-Identifier: LGPL-2.1-only OR LGPL-3.0-only OR LicenseRef-KDE-Accepted-LGPL
*/
#include "GridLines.h"
#include "LineGridNode.h"
#include "XYChart.h"
LinePropertiesGroup::LinePropertiesGroup(GridLines *parent)
: QObject(parent)
{
m_parent = parent;
}
bool LinePropertiesGroup::visible() const
{
return m_visible;
}
void LinePropertiesGroup::setVisible(bool newVisible)
{
if (newVisible == m_visible) {
return;
}
m_visible = newVisible;
Q_EMIT propertiesChanged();
}
QColor LinePropertiesGroup::color() const
{
return m_color;
}
void LinePropertiesGroup::setColor(const QColor &newColor)
{
if (newColor == m_color) {
return;
}
m_color = newColor;
Q_EMIT propertiesChanged();
}
float LinePropertiesGroup::lineWidth() const
{
return m_lineWidth;
}
void LinePropertiesGroup::setLineWidth(float newLineWidth)
{
if (newLineWidth == m_lineWidth) {
return;
}
m_lineWidth = newLineWidth;
Q_EMIT propertiesChanged();
}
int LinePropertiesGroup::frequency() const
{
return m_frequency;
}
void LinePropertiesGroup::setFrequency(int newFrequency)
{
if (newFrequency == m_frequency) {
return;
}
m_frequency = newFrequency;
Q_EMIT propertiesChanged();
}
int LinePropertiesGroup::count() const
{
return m_count;
}
void LinePropertiesGroup::setCount(int newCount)
{
if (newCount == m_count) {
return;
}
m_count = newCount;
Q_EMIT propertiesChanged();
}
GridLines::GridLines(QQuickItem *parent)
: QQuickItem(parent)
{
setFlag(QQuickItem::ItemHasContents);
m_major = std::make_unique<LinePropertiesGroup>(this);
connect(m_major.get(), &LinePropertiesGroup::propertiesChanged, this, &GridLines::update);
m_minor = std::make_unique<LinePropertiesGroup>(this);
connect(m_minor.get(), &LinePropertiesGroup::propertiesChanged, this, &GridLines::update);
}
GridLines::Direction GridLines::direction() const
{
return m_direction;
}
void GridLines::setDirection(GridLines::Direction newDirection)
{
if (newDirection == m_direction) {
return;
}
m_direction = newDirection;
update();
Q_EMIT directionChanged();
}
XYChart *GridLines::chart() const
{
return m_chart;
}
void GridLines::setChart(XYChart *newChart)
{
if (newChart == m_chart) {
return;
}
if (m_chart) {
disconnect(m_chart, &XYChart::computedRangeChanged, this, &GridLines::update);
}
m_chart = newChart;
if (m_chart) {
connect(m_chart, &XYChart::computedRangeChanged, this, &GridLines::update);
}
update();
Q_EMIT chartChanged();
}
float GridLines::spacing() const
{
return m_spacing;
}
void GridLines::setSpacing(float newSpacing)
{
if (newSpacing == m_spacing || m_chart != nullptr) {
return;
}
m_spacing = newSpacing;
update();
Q_EMIT spacingChanged();
}
LinePropertiesGroup *GridLines::majorGroup() const
{
return m_major.get();
}
LinePropertiesGroup *GridLines::minorGroup() const
{
return m_minor.get();
}
QSGNode *GridLines::updatePaintNode(QSGNode *node, QQuickItem::UpdatePaintNodeData *)
{
if (!node) {
node = new QSGNode{};
node->appendChildNode(new LineGridNode{});
node->appendChildNode(new LineGridNode{});
}
if (m_chart) {
if (m_direction == Direction::Horizontal) {
m_spacing = width() / (m_chart->computedRange().distanceX - 1);
} else {
m_spacing = height() / (m_chart->computedRange().distanceY);
}
}
updateLines(static_cast<LineGridNode *>(node->childAtIndex(0)), m_minor.get());
updateLines(static_cast<LineGridNode *>(node->childAtIndex(1)), m_major.get());
return node;
}
void GridLines::updateLines(LineGridNode *node, LinePropertiesGroup *properties)
{
node->setVisible(properties->visible());
node->setRect(boundingRect());
node->setVertical(m_direction == Direction::Vertical);
node->setColor(properties->color());
node->setLineWidth(properties->lineWidth());
if (properties->count() > 0) {
node->setSpacing(m_direction == Direction::Horizontal ? width() / (properties->count() + 1) : height() / (properties->count() + 1));
} else {
node->setSpacing(m_spacing * properties->frequency());
}
node->update();
}
#include "moc_GridLines.cpp"
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