Add a Qt I/O Graph dialog.

For each graph you can set:
- Its visibility
- A name
- A display filter
- Color, from a fixed list
- Plot style: Line, Impulse, Bar, Stacked Bar, Dot, Square, Diamond
- Basic Y Axes (packets/s, bytes/s, bits/s)
- Computed Y Axes (SUM, MIN, AVG, MAX)
- Smoothing

You can pan and zoom using the mouse and keyboard. Clicking on a graph
selects the last packet for that interval. If all graphs have the same Y
axis a single label is shown, otherwise a legend is shown.

The time scale (X axis) can be toggled between relative seconds and the
time of day.

Graphs can be saved as PDF, PNG, BMP, and JPEG. Settings are "sticky"
via the io_graphs UAT.

To do:
- Minimize graph drawing delays.
- Figure out why smoothing differs from GTK+
- Everything else at the top of io_graph_dialog.cpp
- Fix empty resets.

A fair amount of code was copied from TCPStreamDialog. We might want to
subclass QCustomPlot and place the shared code there.

Move common syntax checking to SyntaxLineEdit.

Move some common code from ui/gtk/io_stat.c to ui/io_graph_item.[ch] and
use it in both GTK+ and Qt.

Make the io_graph_item_t array allocation in io_stat.c static. The
behavior should be identical and this gives us additional compile-time
checks.

Change-Id: I9a3d544469b7048f0761fdbf7bcf20f44ae76577
Reviewed-on: https://code.wireshark.org/review/435
Reviewed-by: Gerald Combs <gerald@wireshark.org>
Tested-by: Gerald Combs <gerald@wireshark.org>

1 files changed, 506 insertions, 0 deletions

diff --git a/ui/qt/io_graph_dialog.ui b/ui/qt/io_graph_dialog.ui
new file mode 100644
index 0000000000..c2b43846ad
--- /dev/null
+++ b/ui/qt/io_graph_dialog.ui
@@ -0,0 +1,506 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>IOGraphDialog</class>
+ <widget class="QDialog" name="IOGraphDialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>850</width>
+    <height>640</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Dialog</string>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout">
+   <item>
+    <widget class="QCustomPlot" name="ioPlot" native="true">
+     <property name="sizePolicy">
+      <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
+       <horstretch>0</horstretch>
+       <verstretch>4</verstretch>
+      </sizepolicy>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <widget class="ElidedLabel" name="hintLabel">
+     <property name="toolTip">
+      <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;
+
+&lt;h3&gt;Valuable and amazing time-saving keyboard shortcuts&lt;/h3&gt;
+&lt;table&gt;&lt;tbody&gt;
+
+&lt;tr&gt;&lt;th&gt;+&lt;/th&gt;&lt;td&gt;Zoom in&lt;/td&gt;&lt;/th&gt;
+&lt;tr&gt;&lt;th&gt;-&lt;/th&gt;&lt;td&gt;Zoom out&lt;/td&gt;&lt;/th&gt;
+&lt;tr&gt;&lt;th&gt;0&lt;/th&gt;&lt;td&gt;Reset graph to its initial state&lt;/td&gt;&lt;/th&gt;
+
+&lt;tr&gt;&lt;th&gt;→&lt;/th&gt;&lt;td&gt;Move right 10 pixels&lt;/td&gt;&lt;/th&gt;
+&lt;tr&gt;&lt;th&gt;←&lt;/th&gt;&lt;td&gt;Move left 10 pixels&lt;/td&gt;&lt;/th&gt;
+&lt;tr&gt;&lt;th&gt;↑&lt;/th&gt;&lt;td&gt;Move up 10 pixels&lt;/td&gt;&lt;/th&gt;
+&lt;tr&gt;&lt;th&gt;↓&lt;/th&gt;&lt;td&gt;Move down 10 pixels&lt;/td&gt;&lt;/th&gt;
+&lt;tr&gt;&lt;th&gt;&lt;i&gt;Shift+&lt;/i&gt;→&lt;/th&gt;&lt;td&gt;Move right 1 pixel&lt;/td&gt;&lt;/th&gt;
+&lt;tr&gt;&lt;th&gt;&lt;i&gt;Shift+&lt;/i&gt;←&lt;/th&gt;&lt;td&gt;Move left 1 pixel&lt;/td&gt;&lt;/th&gt;
+&lt;tr&gt;&lt;th&gt;&lt;i&gt;Shift+&lt;/i&gt;↑&lt;/th&gt;&lt;td&gt;Move up 1 pixel&lt;/td&gt;&lt;/th&gt;
+&lt;tr&gt;&lt;th&gt;&lt;i&gt;Shift+&lt;/i&gt;↓&lt;/th&gt;&lt;td&gt;Move down 1 pixel&lt;/td&gt;&lt;/th&gt;
+
+&lt;tr&gt;&lt;th&gt;g&lt;/th&gt;&lt;td&gt;Go to packet under cursor&lt;/td&gt;&lt;/th&gt;
+
+&lt;tr&gt;&lt;th&gt;z&lt;/th&gt;&lt;td&gt;Toggle mouse drag / zoom&lt;/td&gt;&lt;/th&gt;
+&lt;tr&gt;&lt;th&gt;t&lt;/th&gt;&lt;td&gt;Toggle capture / session time origin&lt;/td&gt;&lt;/th&gt;
+&lt;tr&gt;&lt;th&gt;Space&lt;/th&gt;&lt;td&gt;Toggle crosshairs&lt;/td&gt;&lt;/th&gt;
+
+&lt;/tbody&gt;&lt;/table&gt;
+&lt;/body&gt;&lt;/html&gt;</string>
+     </property>
+     <property name="text">
+      <string/>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <widget class="QTreeWidget" name="graphTreeWidget">
+     <property name="sizePolicy">
+      <sizepolicy hsizetype="Expanding" vsizetype="Expanding">
+       <horstretch>0</horstretch>
+       <verstretch>1</verstretch>
+      </sizepolicy>
+     </property>
+     <column>
+      <property name="text">
+       <string>Name</string>
+      </property>
+     </column>
+     <column>
+      <property name="text">
+       <string>Display filter</string>
+      </property>
+     </column>
+     <column>
+      <property name="text">
+       <string>Color</string>
+      </property>
+     </column>
+     <column>
+      <property name="text">
+       <string>Style</string>
+      </property>
+     </column>
+     <column>
+      <property name="text">
+       <string>Y Axis</string>
+      </property>
+     </column>
+     <column>
+      <property name="text">
+       <string>Y Field</string>
+      </property>
+     </column>
+     <column>
+      <property name="text">
+       <string>Smoothing</string>
+      </property>
+     </column>
+    </widget>
+   </item>
+   <item>
+    <layout class="QHBoxLayout" name="horizontalLayout">
+     <item>
+      <widget class="QToolButton" name="newToolButton">
+       <property name="toolTip">
+        <string>Change the dissection behavior for a protocol.</string>
+       </property>
+       <property name="text">
+        <string/>
+       </property>
+       <property name="icon">
+        <iconset resource="../../image/toolbar.qrc">
+         <normaloff>:/stock/plus-8.png</normaloff>:/stock/plus-8.png</iconset>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QToolButton" name="deleteToolButton">
+       <property name="toolTip">
+        <string>Remove this dissection behavior.</string>
+       </property>
+       <property name="icon">
+        <iconset resource="../../image/toolbar.qrc">
+         <normaloff>:/stock/minus-8.png</normaloff>:/stock/minus-8.png</iconset>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QToolButton" name="copyToolButton">
+       <property name="toolTip">
+        <string>Copy this dissection behavior.</string>
+       </property>
+       <property name="text">
+        <string/>
+       </property>
+       <property name="icon">
+        <iconset resource="../../image/toolbar.qrc">
+         <normaloff>:/stock/copy-8.png</normaloff>:/stock/copy-8.png</iconset>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <spacer name="horizontalSpacer_4">
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>40</width>
+         <height>20</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+     <item>
+      <widget class="QLabel" name="mouseLabel">
+       <property name="text">
+        <string>Mouse</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QRadioButton" name="dragRadioButton">
+       <property name="toolTip">
+        <string>Drag using the mouse button.</string>
+       </property>
+       <property name="text">
+        <string>drags</string>
+       </property>
+       <property name="checkable">
+        <bool>true</bool>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QRadioButton" name="zoomRadioButton">
+       <property name="toolTip">
+        <string>Select using the mouse button.</string>
+       </property>
+       <property name="text">
+        <string>zooms</string>
+       </property>
+       <property name="checkable">
+        <bool>true</bool>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <spacer name="horizontalSpacer_3">
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>40</width>
+         <height>20</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+     <item>
+      <widget class="QLabel" name="label_2">
+       <property name="text">
+        <string>Interval</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QComboBox" name="intervalComboBox"/>
+     </item>
+     <item>
+      <spacer name="horizontalSpacer_2">
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>40</width>
+         <height>20</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+     <item>
+      <widget class="QCheckBox" name="todCheckBox">
+       <property name="text">
+        <string>Time of day</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <spacer name="horizontalSpacer_5">
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>40</width>
+         <height>20</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+     <item>
+      <widget class="QCheckBox" name="logCheckBox">
+       <property name="text">
+        <string>Log scale</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <spacer name="horizontalSpacer">
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>40</width>
+         <height>20</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+     <item>
+      <widget class="QPushButton" name="resetButton">
+       <property name="text">
+        <string>Reset</string>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+   <item>
+    <widget class="QDialogButtonBox" name="buttonBox">
+     <property name="orientation">
+      <enum>Qt::Horizontal</enum>
+     </property>
+     <property name="standardButtons">
+      <set>QDialogButtonBox::Close|QDialogButtonBox::Help|QDialogButtonBox::Save</set>
+     </property>
+    </widget>
+   </item>
+  </layout>
+  <action name="actionReset">
+   <property name="text">
+    <string>Reset Graph</string>
+   </property>
+   <property name="toolTip">
+    <string>Reset the graph to its initial state.</string>
+   </property>
+   <property name="shortcut">
+    <string>0</string>
+   </property>
+  </action>
+  <action name="actionZoomIn">
+   <property name="text">
+    <string>Zoom In</string>
+   </property>
+   <property name="toolTip">
+    <string>Zoom in</string>
+   </property>
+   <property name="shortcut">
+    <string>+</string>
+   </property>
+  </action>
+  <action name="actionZoomOut">
+   <property name="text">
+    <string>Zoom Out</string>
+   </property>
+   <property name="toolTip">
+    <string>Zoom out</string>
+   </property>
+   <property name="shortcut">
+    <string>-</string>
+   </property>
+  </action>
+  <action name="actionMoveUp10">
+   <property name="text">
+    <string>Move Up 10 Pixels</string>
+   </property>
+   <property name="toolTip">
+    <string>Move up 10 pixels</string>
+   </property>
+   <property name="shortcut">
+    <string>Up</string>
+   </property>
+  </action>
+  <action name="actionMoveLeft10">
+   <property name="text">
+    <string>Move Left 10 Pixels</string>
+   </property>
+   <property name="toolTip">
+    <string>Move left 10 pixels</string>
+   </property>
+   <property name="shortcut">
+    <string>Left</string>
+   </property>
+  </action>
+  <action name="actionMoveRight10">
+   <property name="text">
+    <string>Move Right 10 Pixels</string>
+   </property>
+   <property name="toolTip">
+    <string>Move right 10 pixels</string>
+   </property>
+   <property name="shortcut">
+    <string>Right</string>
+   </property>
+  </action>
+  <action name="actionMoveDown10">
+   <property name="text">
+    <string>Move Down 10 Pixels</string>
+   </property>
+   <property name="toolTip">
+    <string>Move down 10 pixels</string>
+   </property>
+   <property name="shortcut">
+    <string>Down</string>
+   </property>
+  </action>
+  <action name="actionMoveUp1">
+   <property name="text">
+    <string>Move Up 1 Pixel</string>
+   </property>
+   <property name="toolTip">
+    <string>Move up 1 pixel</string>
+   </property>
+   <property name="shortcut">
+    <string>Shift+Up</string>
+   </property>
+  </action>
+  <action name="actionMoveLeft1">
+   <property name="text">
+    <string>Move Left 1 Pixel</string>
+   </property>
+   <property name="toolTip">
+    <string>Move left 1 pixel</string>
+   </property>
+   <property name="shortcut">
+    <string>Shift+Left</string>
+   </property>
+  </action>
+  <action name="actionMoveRight1">
+   <property name="text">
+    <string>Move Right 1 Pixel</string>
+   </property>
+   <property name="toolTip">
+    <string>Move right 1 pixel</string>
+   </property>
+   <property name="shortcut">
+    <string>Shift+Right</string>
+   </property>
+  </action>
+  <action name="actionMoveDown1">
+   <property name="text">
+    <string>Move Down 1 Pixel</string>
+   </property>
+   <property name="toolTip">
+    <string>Move down 1 pixel</string>
+   </property>
+   <property name="shortcut">
+    <string>Shift+Down</string>
+   </property>
+  </action>
+  <action name="actionGoToPacket">
+   <property name="text">
+    <string>Go To Packet Under Cursor</string>
+   </property>
+   <property name="toolTip">
+    <string>Go to packet currently under the cursor</string>
+   </property>
+   <property name="shortcut">
+    <string>G</string>
+   </property>
+  </action>
+  <action name="actionDragZoom">
+   <property name="text">
+    <string>Drag / Zoom</string>
+   </property>
+   <property name="toolTip">
+    <string>Toggle mouse drag / zoom behavior</string>
+   </property>
+   <property name="shortcut">
+    <string>Z</string>
+   </property>
+  </action>
+  <action name="actionToggleTimeOrigin">
+   <property name="text">
+    <string>Capture / Session Time Origin</string>
+   </property>
+   <property name="toolTip">
+    <string>Toggle capture / session time origin</string>
+   </property>
+   <property name="shortcut">
+    <string>T</string>
+   </property>
+  </action>
+  <action name="actionCrosshairs">
+   <property name="text">
+    <string>Crosshairs</string>
+   </property>
+   <property name="toolTip">
+    <string>Toggle crosshairs</string>
+   </property>
+   <property name="shortcut">
+    <string>Space</string>
+   </property>
+  </action>
+ </widget>
+ <customwidgets>
+  <customwidget>
+   <class>QCustomPlot</class>
+   <extends>QWidget</extends>
+   <header>qcustomplot.h</header>
+   <container>1</container>
+  </customwidget>
+  <customwidget>
+   <class>ElidedLabel</class>
+   <extends>QLabel</extends>
+   <header>elided_label.h</header>
+  </customwidget>
+ </customwidgets>
+ <resources>
+  <include location="../../image/toolbar.qrc"/>
+ </resources>
+ <connections>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>accepted()</signal>
+   <receiver>IOGraphDialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>248</x>
+     <y>254</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>157</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>rejected()</signal>
+   <receiver>IOGraphDialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>316</x>
+     <y>260</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>286</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>