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-rw-r--r--stats/barseries.cpp3
-rw-r--r--stats/barseries.h7
-rw-r--r--stats/boxseries.cpp3
-rw-r--r--stats/boxseries.h4
-rw-r--r--stats/chartitem.cpp31
-rw-r--r--stats/chartitem.h26
-rw-r--r--stats/pieseries.cpp3
-rw-r--r--stats/pieseries.h7
-rw-r--r--stats/scatterseries.cpp3
-rw-r--r--stats/scatterseries.h5
-rw-r--r--stats/statsaxis.cpp3
-rw-r--r--stats/statsaxis.h5
-rw-r--r--stats/statsgrid.cpp3
-rw-r--r--stats/statsgrid.h4
-rw-r--r--stats/statshelper.h47
-rw-r--r--stats/statsview.cpp119
-rw-r--r--stats/statsview.h54
17 files changed, 242 insertions, 85 deletions
diff --git a/stats/barseries.cpp b/stats/barseries.cpp
index 84a5ba967..ab9521315 100644
--- a/stats/barseries.cpp
+++ b/stats/barseries.cpp
@@ -382,8 +382,9 @@ bool BarSeries::hover(QPointF pos)
if (!information)
information = view.createChartItem<InformationBox>();
information->setText(makeInfo(item, highlighted.subitem), pos);
+ information->setVisible(true);
} else {
- information.reset();
+ information->setVisible(false);
}
return highlighted.bar >= 0;
diff --git a/stats/barseries.h b/stats/barseries.h
index 5f030ad76..50ef1e72d 100644
--- a/stats/barseries.h
+++ b/stats/barseries.h
@@ -5,6 +5,7 @@
#ifndef BAR_SERIES_H
#define BAR_SERIES_H
+#include "statshelper.h"
#include "statsseries.h"
#include "statsvariables.h"
@@ -81,7 +82,7 @@ private:
// A label that is composed of multiple lines
struct BarLabel {
- std::unique_ptr<ChartTextItem> item;
+ ChartItemPtr<ChartTextItem> item;
bool isOutside; // Is shown outside of bar
BarLabel(StatsView &view, const std::vector<QString> &labels, int bin_nr, int binCount);
void setVisible(bool visible);
@@ -90,7 +91,7 @@ private:
};
struct SubItem {
- std::unique_ptr<ChartBarItem> item;
+ ChartItemPtr<ChartBarItem> item;
std::unique_ptr<BarLabel> label;
double value_from;
double value_to;
@@ -116,7 +117,7 @@ private:
int getSubItemUnderMouse(const QPointF &f, bool horizontal, bool stacked) const;
};
- std::unique_ptr<InformationBox> information;
+ ChartItemPtr<InformationBox> information;
std::vector<Item> items;
bool horizontal;
bool stacked;
diff --git a/stats/boxseries.cpp b/stats/boxseries.cpp
index 4d3b90f21..c4f34dbb7 100644
--- a/stats/boxseries.cpp
+++ b/stats/boxseries.cpp
@@ -128,8 +128,9 @@ bool BoxSeries::hover(QPointF pos)
if (!information)
information = view.createChartItem<InformationBox>();
information->setText(formatInformation(item), pos);
+ information->setVisible(true);
} else {
- information.reset();
+ information->setVisible(false);
}
return highlighted >= 0;
}
diff --git a/stats/boxseries.h b/stats/boxseries.h
index 41248688b..ce48397ea 100644
--- a/stats/boxseries.h
+++ b/stats/boxseries.h
@@ -34,7 +34,7 @@ private:
int getItemUnderMouse(const QPointF &f);
struct Item {
- std::unique_ptr<ChartBoxItem> item;
+ ChartItemPtr<ChartBoxItem> item;
double lowerBound, upperBound;
StatsQuartiles q;
QString binName;
@@ -48,7 +48,7 @@ private:
int decimals;
std::vector<QString> formatInformation(const Item &item) const;
- std::unique_ptr<InformationBox> information;
+ ChartItemPtr<InformationBox> information;
std::vector<std::unique_ptr<Item>> items;
int highlighted; // -1: no item highlighted
};
diff --git a/stats/chartitem.cpp b/stats/chartitem.cpp
index be2b3d635..6a69b6973 100644
--- a/stats/chartitem.cpp
+++ b/stats/chartitem.cpp
@@ -16,15 +16,16 @@ static int round_up(double f)
}
ChartItem::ChartItem(StatsView &v, ChartZValue z) :
- dirty(false), dirtyPrev(nullptr), dirtyNext(nullptr),
+ dirty(false), prev(nullptr), next(nullptr),
zValue(z), view(v)
{
+ // Register before the derived constructors run, so that the
+ // derived classes can mark the item as dirty in the constructor.
+ v.registerChartItem(*this);
}
ChartItem::~ChartItem()
{
- if (dirty)
- view.unregisterDirtyChartItem(*this);
}
QSizeF ChartItem::sceneSize() const
@@ -32,6 +33,11 @@ QSizeF ChartItem::sceneSize() const
return view.size();
}
+void ChartItem::markDirty()
+{
+ view.registerDirtyChartItem(*this);
+}
+
ChartPixmapItem::ChartPixmapItem(StatsView &v, ChartZValue z) : HideableChartItem(v, z),
positionDirty(false), textureDirty(false)
{
@@ -45,13 +51,13 @@ ChartPixmapItem::~ChartPixmapItem()
void ChartPixmapItem::setTextureDirty()
{
textureDirty = true;
- view.registerDirtyChartItem(*this);
+ markDirty();
}
void ChartPixmapItem::setPositionDirty()
{
positionDirty = true;
- view.registerDirtyChartItem(*this);
+ markDirty();
}
void ChartPixmapItem::render()
@@ -60,6 +66,8 @@ void ChartPixmapItem::render()
createNode(view.w()->createImageNode());
view.addQSGNode(node.get(), zValue);
}
+ updateVisible();
+
if (!img) {
resize(QSizeF(1,1));
img->fill(Qt::transparent);
@@ -141,6 +149,7 @@ void ChartScatterItem::render()
view.addQSGNode(node.get(), zValue);
textureDirty = positionDirty = true;
}
+ updateVisible();
if (textureDirty) {
node->node->setTexture(highlighted ? scatterItemHighlightedTexture.get() : scatterItemTexture.get());
textureDirty = false;
@@ -156,7 +165,7 @@ void ChartScatterItem::setPos(QPointF pos)
pos -= QPointF(scatterItemDiameter / 2.0, scatterItemDiameter / 2.0);
rect.moveTopLeft(pos);
positionDirty = true;
- view.registerDirtyChartItem(*this);
+ markDirty();
}
static double squareDist(const QPointF &p1, const QPointF &p2)
@@ -176,7 +185,7 @@ void ChartScatterItem::setHighlight(bool highlightedIn)
return;
highlighted = highlightedIn;
textureDirty = true;
- view.registerDirtyChartItem(*this);
+ markDirty();
}
QRectF ChartScatterItem::getRect() const
@@ -297,6 +306,7 @@ void ChartLineItem::render()
view.addQSGNode(node.get(), zValue);
positionDirty = materialDirty = true;
}
+ updateVisible();
if (positionDirty) {
// Attention: width is a geometry property and therefore handled by position dirty!
@@ -320,7 +330,7 @@ void ChartLineItem::setLine(QPointF fromIn, QPointF toIn)
from = fromIn;
to = toIn;
positionDirty = true;
- view.registerDirtyChartItem(*this);
+ markDirty();
}
ChartBarItem::ChartBarItem(StatsView &v, ChartZValue z, double borderWidth, bool horizontal) : HideableChartItem(v, z),
@@ -350,6 +360,7 @@ void ChartBarItem::render()
view.addQSGNode(node.get(), zValue);
positionDirty = colorDirty = true;
}
+ updateVisible();
if (colorDirty) {
node->node->setColor(color);
@@ -384,14 +395,14 @@ void ChartBarItem::setColor(QColor colorIn, QColor borderColorIn)
color = colorIn;
borderColor = borderColorIn;
colorDirty = true;
- view.registerDirtyChartItem(*this);
+ markDirty();
}
void ChartBarItem::setRect(const QRectF &rectIn)
{
rect = rectIn;
positionDirty = true;
- view.registerDirtyChartItem(*this);
+ markDirty();
}
QRectF ChartBarItem::getRect() const
diff --git a/stats/chartitem.h b/stats/chartitem.h
index 44caae9cc..6c8919dec 100644
--- a/stats/chartitem.h
+++ b/stats/chartitem.h
@@ -22,13 +22,14 @@ class ChartItem {
public:
virtual void render() = 0; // Only call on render thread!
bool dirty; // If true, call render() when rebuilding the scene
- ChartItem *dirtyPrev, *dirtyNext; // Double linked list of dirty items
+ ChartItem *prev, *next; // Double linked list of items
const ChartZValue zValue;
+ virtual ~ChartItem(); // Attention: must only be called by render thread.
protected:
ChartItem(StatsView &v, ChartZValue z);
- virtual ~ChartItem();
QSizeF sceneSize() const;
StatsView &view;
+ void markDirty();
};
template <typename Node>
@@ -36,9 +37,11 @@ class HideableChartItem : public ChartItem {
protected:
HideableChartItem(StatsView &v, ChartZValue z);
std::unique_ptr<Node> node;
- bool visible; // Argh. If visibility is set before node is created, we have to cache it.
+ bool visible;
+ bool visibleChanged;
template<class... Args>
void createNode(Args&&... args); // Call to create node with visibility flag.
+ void updateVisible(); // Must be called by child class to update visibility flag!
public:
void setVisible(bool visible);
};
@@ -186,9 +189,11 @@ private:
template <typename Node>
void HideableChartItem<Node>::setVisible(bool visibleIn)
{
+ if (visible == visibleIn)
+ return;
visible = visibleIn;
- if (node)
- node->setVisible(visible);
+ visibleChanged = true;
+ markDirty();
}
template <typename Node>
@@ -196,12 +201,21 @@ template<class... Args>
void HideableChartItem<Node>::createNode(Args&&... args)
{
node.reset(new Node(visible, std::forward<Args>(args)...));
+ visibleChanged = false;
}
template <typename Node>
HideableChartItem<Node>::HideableChartItem(StatsView &v, ChartZValue z) : ChartItem(v, z),
- visible(true)
+ visible(true), visibleChanged(false)
+{
+}
+
+template <typename Node>
+void HideableChartItem<Node>::updateVisible()
{
+ if (visibleChanged)
+ node->setVisible(visible);
+ visibleChanged = false;
}
#endif
diff --git a/stats/pieseries.cpp b/stats/pieseries.cpp
index 83b1645f1..a100d66e0 100644
--- a/stats/pieseries.cpp
+++ b/stats/pieseries.cpp
@@ -244,8 +244,9 @@ bool PieSeries::hover(QPointF pos)
if (!information)
information = view.createChartItem<InformationBox>();
information->setText(makeInfo(highlighted), pos);
+ information->setVisible(true);
} else {
- information.reset();
+ information->setVisible(false);
}
return highlighted >= 0;
}
diff --git a/stats/pieseries.h b/stats/pieseries.h
index da1886500..a75909efe 100644
--- a/stats/pieseries.h
+++ b/stats/pieseries.h
@@ -3,6 +3,7 @@
#ifndef PIE_SERIES_H
#define PIE_SERIES_H
+#include "statshelper.h"
#include "statsseries.h"
#include <memory>
@@ -33,12 +34,12 @@ private:
// Get item under mouse pointer, or -1 if none
int getItemUnderMouse(const QPointF &f) const;
- std::unique_ptr<ChartPieItem> item;
+ ChartItemPtr<ChartPieItem> item;
QString categoryName;
std::vector<QString> makeInfo(int idx) const;
struct Item {
- std::unique_ptr<ChartTextItem> innerLabel, outerLabel;
+ ChartItemPtr<ChartTextItem> innerLabel, outerLabel;
QString name;
double angleFrom, angleTo; // In fraction of total
int count;
@@ -58,7 +59,7 @@ private:
};
std::vector<OtherItem> other;
- std::unique_ptr<InformationBox> information;
+ ChartItemPtr<InformationBox> information;
QPointF center; // center of drawing area
double radius; // radius of pie
int highlighted;
diff --git a/stats/scatterseries.cpp b/stats/scatterseries.cpp
index e522ce81f..791bb81ca 100644
--- a/stats/scatterseries.cpp
+++ b/stats/scatterseries.cpp
@@ -116,7 +116,7 @@ bool ScatterSeries::hover(QPointF pos)
highlighted = std::move(newHighlighted);
if (highlighted.empty()) {
- information.reset();
+ information->setVisible(false);
return false;
} else {
if (!information)
@@ -148,6 +148,7 @@ bool ScatterSeries::hover(QPointF pos)
}
information->setText(text, pos);
+ information->setVisible(true);
return true;
}
}
diff --git a/stats/scatterseries.h b/stats/scatterseries.h
index d747f3c8d..e1642f4c6 100644
--- a/stats/scatterseries.h
+++ b/stats/scatterseries.h
@@ -4,6 +4,7 @@
#ifndef SCATTER_SERIES_H
#define SCATTER_SERIES_H
+#include "statshelper.h"
#include "statsseries.h"
#include <memory>
@@ -32,7 +33,7 @@ private:
std::vector<int> getItemsUnderMouse(const QPointF &f) const;
struct Item {
- std::unique_ptr<ChartScatterItem> item;
+ ChartItemPtr<ChartScatterItem> item;
dive *d;
double pos, value;
Item(StatsView &view, ScatterSeries *series, dive *d, double pos, double value);
@@ -40,7 +41,7 @@ private:
void highlight(bool highlight);
};
- std::unique_ptr<InformationBox> information;
+ ChartItemPtr<InformationBox> information;
std::vector<Item> items;
std::vector<int> highlighted;
const StatsVariable &varX;
diff --git a/stats/statsaxis.cpp b/stats/statsaxis.cpp
index 5c4f0403e..7af41c14b 100644
--- a/stats/statsaxis.cpp
+++ b/stats/statsaxis.cpp
@@ -159,6 +159,9 @@ void StatsAxis::setSize(double sizeIn)
{
size = sizeIn;
+ // Ticks (and labels) should probably be reused. For now, clear them.
+ for (Tick &tick: ticks)
+ view.deleteChartItem(tick.item);
labels.clear();
ticks.clear();
updateLabels();
diff --git a/stats/statsaxis.h b/stats/statsaxis.h
index 89c9edbe2..02662ddd9 100644
--- a/stats/statsaxis.h
+++ b/stats/statsaxis.h
@@ -3,6 +3,7 @@
#define STATS_AXIS_H
#include "chartitem.h"
+#include "statshelper.h"
#include <memory>
#include <vector>
@@ -36,7 +37,7 @@ public:
protected:
StatsAxis(StatsView &view, const QString &title, bool horizontal, bool labelsBetweenTicks);
- std::unique_ptr<ChartLineItem> line;
+ ChartItemPtr<ChartLineItem> line;
QString title;
double titleWidth;
@@ -51,7 +52,7 @@ protected:
virtual std::pair<QString, QString> getFirstLastLabel() const = 0;
struct Tick {
- std::unique_ptr<ChartLineItem> item;
+ ChartItemPtr<ChartLineItem> item;
double pos;
};
std::vector<Tick> ticks;
diff --git a/stats/statsgrid.cpp b/stats/statsgrid.cpp
index f8ad22c14..f29069341 100644
--- a/stats/statsgrid.cpp
+++ b/stats/statsgrid.cpp
@@ -20,7 +20,10 @@ void StatsGrid::updatePositions()
// We probably should be smarter and reuse existing lines.
// For now, this does it.
+ for (auto &line: lines)
+ view.deleteChartItem(line);
lines.clear();
+
if (xtics.empty() || ytics.empty())
return;
diff --git a/stats/statsgrid.h b/stats/statsgrid.h
index ab1b0a513..696341c0b 100644
--- a/stats/statsgrid.h
+++ b/stats/statsgrid.h
@@ -1,6 +1,8 @@
// SPDX-License-Identifier: GPL-2.0
// The background grid of a chart
+#include "statshelper.h"
+
#include <memory>
#include <vector>
@@ -15,5 +17,5 @@ public:
private:
StatsView &view;
const StatsAxis &xAxis, &yAxis;
- std::vector<std::unique_ptr<ChartLineItem>> lines;
+ std::vector<ChartItemPtr<ChartLineItem>> lines;
};
diff --git a/stats/statshelper.h b/stats/statshelper.h
index f5d7cbcea..6b4a30ab5 100644
--- a/stats/statshelper.h
+++ b/stats/statshelper.h
@@ -7,6 +7,52 @@
#include <memory>
#include <QSGNode>
+// A stupid pointer class that initializes to null and can be copy
+// assigned. This is for historical reasons: unique_ptrs to ChartItems
+// were replaced by plain pointers. Instead of nulling the plain pointers
+// in the constructors, use this. Ultimately, we might think about making
+// this thing smarter, once removal of individual ChartItems is implemented.
+template <typename T>
+class ChartItemPtr {
+ friend class StatsView; // Only the stats view can create these pointers
+ T *ptr;
+ ChartItemPtr(T *ptr) : ptr(ptr)
+ {
+ }
+public:
+ ChartItemPtr() : ptr(nullptr)
+ {
+ }
+ ChartItemPtr(const ChartItemPtr &p) : ptr(p.ptr)
+ {
+ }
+ void reset()
+ {
+ ptr = nullptr;
+ }
+ ChartItemPtr &operator=(const ChartItemPtr &p)
+ {
+ ptr = p.ptr;
+ return *this;
+ }
+ operator bool() const
+ {
+ return !!ptr;
+ }
+ bool operator!() const
+ {
+ return !ptr;
+ }
+ T &operator*() const
+ {
+ return *ptr;
+ }
+ T *operator->() const
+ {
+ return ptr;
+ }
+};
+
// In general, we want chart items to be hideable. For example to show/hide
// labels on demand. Very sadly, the QSG API is absolutely terrible with
// respect to temporarily disabling. Instead of simply having a flag,
@@ -82,6 +128,7 @@ template <typename Node>
void HideableQSGNode<Node>::setVisible(bool visible)
{
hidden = !visible;
+ Node::markDirty(QSGNode::DirtySubtreeBlocked);
}
#endif
diff --git a/stats/statsview.cpp b/stats/statsview.cpp
index 550219286..5d7183fc3 100644
--- a/stats/statsview.cpp
+++ b/stats/statsview.cpp
@@ -35,9 +35,7 @@ StatsView::StatsView(QQuickItem *parent) : QQuickItem(parent),
xAxis(nullptr),
yAxis(nullptr),
draggedItem(nullptr),
- rootNode(nullptr),
- firstDirtyChartItem(nullptr),
- lastDirtyChartItem(nullptr)
+ rootNode(nullptr)
{
setFlag(ItemHasContents, true);
@@ -68,7 +66,7 @@ void StatsView::mousePressEvent(QMouseEvent *event)
if (legend->getRect().contains(pos)) {
dragStartMouse = pos;
dragStartItem = rect.topLeft();
- draggedItem = legend.get();
+ draggedItem = &*legend;
grabMouse();
}
}
@@ -114,6 +112,14 @@ QSGNode *StatsView::updatePaintNode(QSGNode *oldNode, QQuickItem::UpdatePaintNod
if (!n)
n = rootNode = new RootNode(window());
+ // Delete all chart items that are marked for deletion.
+ ChartItem *nextitem;
+ for (ChartItem *item = deletedItems.first; item; item = nextitem) {
+ nextitem = item->next;
+ delete item;
+ }
+ deletedItems.clear();
+
QRectF rect = boundingRect();
if (plotRect != rect) {
plotRect = rect;
@@ -121,12 +127,11 @@ QSGNode *StatsView::updatePaintNode(QSGNode *oldNode, QQuickItem::UpdatePaintNod
plotAreaChanged(plotRect.size());
}
- for (ChartItem *item = std::exchange(firstDirtyChartItem, nullptr); item;
- item = std::exchange(item->dirtyNext, nullptr)) {
+ for (ChartItem *item = dirtyItems.first; item; item = item->next) {
item->render();
item->dirty = false;
- item->dirtyPrev = nullptr;
}
+ dirtyItems.splice(cleanItems);
return n;
}
@@ -137,34 +142,74 @@ void StatsView::addQSGNode(QSGNode *node, ChartZValue z)
rootNode->zNodes[idx]->appendChildNode(node);
}
-void StatsView::unregisterDirtyChartItem(ChartItem &item)
+void StatsView::registerChartItem(ChartItem &item)
+{
+ cleanItems.append(item);
+}
+
+void StatsView::registerDirtyChartItem(ChartItem &item)
{
- if (!item.dirty)
+ if (item.dirty)
return;
- if (item.dirtyNext)
- item.dirtyNext->dirtyPrev = item.dirtyPrev;
+ cleanItems.remove(item);
+ dirtyItems.append(item);
+ item.dirty = true;
+}
+
+void StatsView::deleteChartItemInternal(ChartItem &item)
+{
+ if (item.dirty)
+ dirtyItems.remove(item);
else
- lastDirtyChartItem = item.dirtyPrev;
- if (item.dirtyPrev)
- item.dirtyPrev->dirtyNext = item.dirtyNext;
+ cleanItems.remove(item);
+ deletedItems.append(item);
+}
+
+StatsView::ChartItemList::ChartItemList() : first(nullptr), last(nullptr)
+{
+}
+
+void StatsView::ChartItemList::clear()
+{
+ first = last = nullptr;
+}
+
+void StatsView::ChartItemList::remove(ChartItem &item)
+{
+ if (item.next)
+ item.next->prev = item.prev;
+ else
+ last = item.prev;
+ if (item.prev)
+ item.prev->next = item.next;
else
- firstDirtyChartItem = item.dirtyNext;
- item.dirtyPrev = item.dirtyNext = nullptr;
- item.dirty = false;
+ first = item.next;
+ item.prev = item.next = nullptr;
}
-void StatsView::registerDirtyChartItem(ChartItem &item)
+void StatsView::ChartItemList::append(ChartItem &item)
{
- if (item.dirty)
+ if (!first) {
+ first = &item;
+ } else {
+ item.prev = last;
+ last->next = &item;
+ }
+ last = &item;
+}
+
+void StatsView::ChartItemList::splice(ChartItemList &l2)
+{
+ if (!first) // if list is empty -> nothing to do.
return;
- if (!firstDirtyChartItem) {
- firstDirtyChartItem = &item;
+ if (!l2.first) {
+ l2 = *this;
} else {
- item.dirtyPrev = lastDirtyChartItem;
- lastDirtyChartItem->dirtyNext = &item;
+ l2.last->next = first;
+ first->prev = l2.last;
+ l2.last = last;
}
- lastDirtyChartItem = &item;
- item.dirty = true;
+ clear();
}
QQuickWindow *StatsView::w() const
@@ -286,8 +331,8 @@ T *StatsView::createSeries(Args&&... args)
void StatsView::setTitle(const QString &s)
{
- if (s.isEmpty()) {
- title.reset();
+ if (title) {
+ // Ooops. Currently we do not support setting the title twice.
return;
}
title = createChartItem<ChartTextItem>(ChartZValue::Legend, titleFont, s);
@@ -305,10 +350,7 @@ void StatsView::updateTitlePos()
template <typename T, class... Args>
T *StatsView::createAxis(const QString &title, Args&&... args)
{
- std::unique_ptr<T> ptr = createChartItem<T>(title, std::forward<Args>(args)...);
- T *res = ptr.get();
- axes.push_back(std::move(ptr));
- return res;
+ return &*createChartItem<T>(title, std::forward<Args>(args)...);
}
void StatsView::setAxes(StatsAxis *x, StatsAxis *y)
@@ -324,19 +366,18 @@ void StatsView::reset()
highlightedSeries = nullptr;
xAxis = yAxis = nullptr;
draggedItem = nullptr;
- for (ChartItem *item = std::exchange(firstDirtyChartItem, nullptr); item;
- item = std::exchange(item->dirtyNext, nullptr)) {
- item->dirty = false;
- item->dirtyPrev = nullptr;
- }
+ title.reset();
legend.reset();
+ regressionItem.reset();
+
+ // Mark clean and dirty chart items for deletion
+ cleanItems.splice(deletedItems);
+ dirtyItems.splice(deletedItems);
+
series.clear();
quartileMarkers.clear();
histogramMarkers.clear();
- regressionItem.reset();
grid.reset();
- axes.clear();
- title.reset();
}
void StatsView::plot(const StatsState &stateIn)
diff --git a/stats/statsview.h b/stats/statsview.h
index bf8ad48a2..dab666ec8 100644
--- a/stats/statsview.h
+++ b/stats/statsview.h
@@ -3,6 +3,7 @@
#define STATS_VIEW_H
#include "statsstate.h"
+#include "statshelper.h"
#include <memory>
#include <QFont>
#include <QImage>
@@ -46,14 +47,24 @@ public:
QSizeF size() const;
QRectF plotArea() const;
void addQSGNode(QSGNode *node, ChartZValue z); // Must only be called in render thread!
+ void registerChartItem(ChartItem &item);
void registerDirtyChartItem(ChartItem &item);
- void unregisterDirtyChartItem(ChartItem &item);
+
+ // Create a chart item and add it to the scene.
+ // The item must not be deleted by the caller, but can be
+ // scheduled for deletion using deleteChartItem() below.
+ // Most items can be made invisible, which is preferred over deletion.
+ // All items on the scene will be deleted once the chart is reset.
template <typename T, class... Args>
- std::unique_ptr<T> createChartItem(Args&&... args);
+ ChartItemPtr<T> createChartItem(Args&&... args);
+ template <typename T>
+ void deleteChartItem(ChartItemPtr<T> &item);
private slots:
void replotIfVisible();
private:
+ bool resetChart;
+
// QtQuick related things
QRectF plotRect;
QSGNode *updatePaintNode(QSGNode *oldNode, QQuickItem::UpdatePaintNodeData *updatePaintNodeData) override;
@@ -119,17 +130,16 @@ private:
StatsState state;
QFont titleFont;
- std::vector<std::unique_ptr<StatsAxis>> axes;
- std::unique_ptr<StatsGrid> grid;
std::vector<std::unique_ptr<StatsSeries>> series;
- std::unique_ptr<Legend> legend;
- std::vector<std::unique_ptr<QuartileMarker>> quartileMarkers;
- std::vector<std::unique_ptr<HistogramMarker>> histogramMarkers;
- std::unique_ptr<ChartTextItem> title;
- std::unique_ptr<RegressionItem> regressionItem;
+ std::unique_ptr<StatsGrid> grid;
+ std::vector<ChartItemPtr<QuartileMarker>> quartileMarkers;
+ std::vector<ChartItemPtr<HistogramMarker>> histogramMarkers;
StatsSeries *highlightedSeries;
StatsAxis *xAxis, *yAxis;
+ ChartItemPtr<ChartTextItem> title;
+ ChartItemPtr<Legend> legend;
Legend *draggedItem;
+ ChartItemPtr<RegressionItem> regressionItem;
QPointF dragStartMouse, dragStartItem;
void hoverEnterEvent(QHoverEvent *event) override;
@@ -138,16 +148,34 @@ private:
void mouseReleaseEvent(QMouseEvent *event) override;
void mouseMoveEvent(QMouseEvent *event) override;
RootNode *rootNode;
- ChartItem *firstDirtyChartItem, *lastDirtyChartItem;
+
+ // There are three double linked lists of chart items:
+ // clean items, dirty items and items to be deleted.
+ struct ChartItemList {
+ ChartItemList();
+ ChartItem *first, *last;
+ void append(ChartItem &item);
+ void remove(ChartItem &item);
+ void clear();
+ void splice(ChartItemList &list);
+ };
+ ChartItemList cleanItems, dirtyItems, deletedItems;
+ void deleteChartItemInternal(ChartItem &item);
};
// This implementation detail must be known to users of the class.
// Perhaps move it into a statsview_impl.h file.
template <typename T, class... Args>
-std::unique_ptr<T> StatsView::createChartItem(Args&&... args)
+ChartItemPtr<T> StatsView::createChartItem(Args&&... args)
+{
+ return ChartItemPtr(new T(*this, std::forward<Args>(args)...));
+}
+
+template <typename T>
+void StatsView::deleteChartItem(ChartItemPtr<T> &item)
{
- std::unique_ptr<T> res(new T(*this, std::forward<Args>(args)...));
- return res;
+ deleteChartItemInternal(*item);
+ item.reset();
}
#endif
generated by cgit v1.2.3-70-g09d2 (git 2.47.0) at 2024-12-26 15:39:55 +0000