add filtering to diff view

src/diffviewwidget.cpp

@@ -27,9 +27,16 @@
 
 #include "diffviewwidget.h"
 
+#include <QAction>
+#include <QDoubleSpinBox>
 #include <QLabel>
+#include <QMenu>
 #include <QProgressBar>
 
+#include <kddockwidgets/DockWidget.h>
+#include <kddockwidgets/MainWindow.h>
+
+#include "diffviewproxy.h"
 #include "dockwidgetsetup.h"
 #include "filterandzoomstack.h"
 #include "models/treemodel.h"
@@ -45,14 +52,50 @@ DiffViewWidget::DiffViewWidget(QWidget* parent)
     , ui(new Ui::ResultsDiffPage)
     , m_parserA(new PerfParser(this))
     , m_parserB(new PerfParser(this))
+    , m_filterAndZoomStackA(new FilterAndZoomStack(this))
+    , m_filterAndZoomStackB(new FilterAndZoomStack(this))
+    , m_filterMenu(new QMenu(this))
     , m_model(new DiffViewModel(this))
+    , m_contents(createDockingArea(QStringLiteral("diffview"), this))
+    , m_timelineA(new TimeLineWidget(m_parserA, m_filterMenu, m_filterAndZoomStackA, this))
+    , m_timelineB(new TimeLineWidget(m_parserB, m_filterMenu, m_filterAndZoomStackB, this))
 {
     ui->setupUi(this);
-    ;
-    ui->diffTreeView->setModel(m_model);
+    auto diffProxy = new DiffViewProxy(this);
+    diffProxy->setSourceModel(m_model);
+
+    ResultsUtil::setupTreeView(ui->diffTreeView, ui->diffSearch, diffProxy, DiffViewModel::InitialSortColumn,
+                               DiffViewModel::SortRole);
     ui->diffTreeView->sortByColumn(DiffViewModel::InitialSortColumn, Qt::DescendingOrder);
     ResultsUtil::setupCostDelegate<DiffViewModel>(m_model, ui->diffTreeView);
 
+    auto dockify = [](QWidget* widget, const QString& id, const QString& title, const QString& shortcut) {
+        auto* dock = new KDDockWidgets::DockWidget(id);
+        dock->setWidget(widget);
+        dock->setTitle(title);
+        dock->toggleAction()->setShortcut(shortcut);
+        return dock;
+    };
+
+    m_timelineDockA = dockify(m_timelineA, QStringLiteral("timelinea"), tr("Timeline A"), tr("Ctrl+A"));
+    m_contents->addDockWidget(m_timelineDockA, KDDockWidgets::Location_OnBottom);
+    m_timelineDockB = dockify(m_timelineB, QStringLiteral("timelineb"), tr("Timeline B"), tr("Ctrl+B"));
+    m_timelineDockA->addDockWidgetAsTab(m_timelineDockB);
+
+    auto costThreshold = new QDoubleSpinBox(this);
+    costThreshold->setDecimals(2);
+    costThreshold->setMinimum(0);
+    costThreshold->setMaximum(99.90);
+    costThreshold->setPrefix(tr("Cost Threshold: "));
+    costThreshold->setSuffix(QStringLiteral("%"));
+    costThreshold->setValue(0.01);
+    costThreshold->setSingleStep(0.01);
+    connect(costThreshold, static_cast<void (QDoubleSpinBox::*)(double)>(&QDoubleSpinBox::valueChanged), this,
+            [diffProxy](double threshold) { diffProxy->setThreshold(threshold); });
+
+    ui->bottomUpVerticalLayout->addWidget(costThreshold);
+    ui->bottomUpVerticalLayout->addWidget(m_contents);
+
     auto repositionFilterBusyIndicator = [this] {
         auto geometry = m_filterBusyIndicator->geometry();
         geometry.setWidth(width() / 2);
@@ -104,6 +147,15 @@ DiffViewWidget::DiffViewWidget(QWidget* parent)
         }
     });
 
+    connect(m_filterAndZoomStackA, &FilterAndZoomStack::filterChanged, this, [this](const Data::FilterAction& action) {
+        m_bFinished = true;
+        m_parserA->filterResults(action);
+    });
+    connect(m_filterAndZoomStackB, &FilterAndZoomStack::filterChanged, this, [this](const Data::FilterAction& action) {
+        m_aFinished = true;
+        m_parserB->filterResults(action);
+    });
+
     {
         m_filterBusyIndicator = new QWidget(this);
         m_filterBusyIndicator->setMinimumHeight(100);

src/diffviewwidget.h

@@ -30,6 +30,7 @@
 #include "data.h"
 #include <QWidget>
 
+class QMenu;
 class PerfParser;
 class DiffViewModel;
 class TimeLineWidget;
@@ -58,6 +59,9 @@ public slots:
     QScopedPointer<Ui::ResultsDiffPage> ui;
     PerfParser* m_parserA;
     PerfParser* m_parserB;
+    FilterAndZoomStack* m_filterAndZoomStackA;
+    FilterAndZoomStack* m_filterAndZoomStackB;
+    QMenu* m_filterMenu;
     DiffViewModel* m_model;
     KDDockWidgets::MainWindow* m_contents;
     KDDockWidgets::DockWidget* m_timelineDockA;

src/models/CMakeLists.txt

@@ -16,6 +16,7 @@ add_library(models STATIC
     ../settings.cpp
     ../util.cpp
     callercalleeproxy.cpp
+    diffviewproxy.cpp
 )
 
 target_link_libraries(models

src/models/costdelegate.cpp

@@ -32,6 +32,7 @@
 
 #include <cmath>
 
+// TODO: c++17 move to std clamp
 float clamp(float value, float low, float high)
 {
     if (value < low)

src/models/diffviewproxy.h

@@ -0,0 +1,45 @@
+/*
+  diffviewproxy.h
+
+  This file is part of Hotspot, the Qt GUI for performance analysis.
+
+  Copyright (C) 2021 Klarälvdalens Datakonsult AB, a KDAB Group company, [email protected]
+  Author: Lieven Hey <[email protected]>
+
+  Licensees holding valid commercial KDAB Hotspot licenses may use this file in
+  accordance with Hotspot Commercial License Agreement provided with the Software.
+
+  Contact [email protected] if any conditions of this licensing are not clear to you.
+
+  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 2 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 <http://www.gnu.org/licenses/>.
+*/
+
+#pragma once
+
+#include <QSortFilterProxyModel>
+
+class DiffViewProxy : public QSortFilterProxyModel
+{
+public:
+    explicit DiffViewProxy(QObject* parent = nullptr);
+    ~DiffViewProxy();
+
+    void setThreshold(double threshold);
+
+protected:
+    bool filterAcceptsRow(int source_row, const QModelIndex& parent) const override;
+
+private:
+    double m_threshold = 0.01;
+};