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FlameGraph: Allow zooming into items

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Double clicking an item will now rebuild the flame graph with that item
as root. Double clicking on an empty area will reset the root.

Change-Id: I16dd4b00d0dd09ff922a01acee67f0d553da6323
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>
Reviewed-by: Milian Wolff <milian.wolff@kdab.com>
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
This commit is contained in:
Ulf Hermann
2018-01-23 18:03:14 +01:00
parent 438db9a488
commit 27c51ed4c8
5 changed files with 66 additions and 10 deletions
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27
src/plugins/qmlprofiler/qml/QmlProfilerFlameGraphView.qml
View File

@@ -58,8 +58,21 @@ ScrollView {
contentHeight: flamegraph.height
boundsBehavior: Flickable.StopAtBounds
MouseArea {
anchors.fill: parent
onClicked: {
tooltip.selectedNode = null;
flameGraphModel.typeSelected(-1);
}
onDoubleClicked: {
tooltip.selectedNode = null;
flameGraphModel.typeSelected(-1);
flamegraph.resetRoot();
}
}
FlameGraph {
property int delegateHeight: Math.max(30, flickable.height / depth)
property int delegateHeight: Math.min(60, Math.max(30, flickable.height / depth))
property color blue: "blue"
property color blue1: Qt.lighter(blue)
property color blue2: Qt.rgba(0.375, 0, 1, 1)
@@ -71,7 +84,7 @@ ScrollView {
id: flamegraph
width: parent.width
height: depth * delegateHeight
height: Math.max(depth * delegateHeight, flickable.height)
model: flameGraphModel
sizeRole: root.sizeRole
sizeThreshold: 0.002
@@ -135,7 +148,7 @@ ScrollView {
+ Math.floor(width / flamegraph.width * 1000) / 10 + "%)";
}
text: textVisible ? buildText() : ""
FlameGraph.onDataChanged: if (textVisible) text = buildText();
FlameGraph.onModelIndexChanged: if (textVisible) text = buildText();
onMouseEntered: {
tooltip.hoveredNode = flamegraphItem;
@@ -152,7 +165,7 @@ ScrollView {
}
}
onClicked: {
function selectClicked() {
if (flamegraphItem.FlameGraph.dataValid) {
tooltip.selectedNode = flamegraphItem;
flameGraphModel.typeSelected(flamegraphItem.FlameGraph.data(
@@ -167,6 +180,12 @@ ScrollView {
}
}
onClicked: selectClicked()
onDoubleClicked: {
selectClicked();
flamegraph.root = FlameGraph.modelIndex;
}
// Functions, not properties to limit the initial overhead when creating the nodes,
// and because FlameGraph.data(...) cannot be notified anyway.
function title() { return FlameGraph.data(QmlProfilerFlameGraphModel.TypeRole) || ""; }