plot: Add button to load all data

See issue #499.

This also fixes a bug introduced in 6784a6a854
which effectively disabled the partial prefetch mechanism on large
tables.

src/MainWindow.cpp

@@ -1713,10 +1713,6 @@ void MainWindow::updatePlot(SqliteTableModel *model, bool update)
 
         if(model)
         {
-            // Make sure all data is loaded before trying to plot anything
-            while(model->canFetchMore())
-                model->fetchMore();
-
             for(int i = 0; i < model->columnCount(); ++i)
             {
                 QVariant::Type columntype = guessdatatype(model, i);
@@ -2493,3 +2489,16 @@ void MainWindow::browseDataSetDefaultTableEncoding()
 {
     browseDataSetTableEncoding(true);
 }
+
+void MainWindow::browseDataFetchAllData()
+{
+    if(m_browseTableModel)
+    {
+        // Make sure all data is loaded
+        while(m_browseTableModel->canFetchMore())
+            m_browseTableModel->fetchMore();
+
+        // Update plot
+        updatePlot(m_browseTableModel);
+    }
+}

src/MainWindow.h

@@ -226,6 +226,7 @@ private slots:
     void showRowidColumn(bool show);
     void browseDataSetTableEncoding(bool forAllTables = false);
     void browseDataSetDefaultTableEncoding();
+    void browseDataFetchAllData();
 };
 
 #endif

src/MainWindow.ui

@@ -333,7 +333,7 @@
             <rect>
              <x>0</x>
              <y>0</y>
-             <width>280</width>
+             <width>468</width>
              <height>558</height>
             </rect>
            </property>
@@ -1255,6 +1255,17 @@
           </property>
          </widget>
         </item>
+        <item>
+         <widget class="QToolButton" name="buttonLoadAllData">
+          <property name="toolTip">
+           <string>Load all data. This has only an effect if not all data has been fetched from the table yet due to the partial fetch mechanism.</string>
+          </property>
+          <property name="icon">
+           <iconset resource="icons/icons.qrc">
+            <normaloff>:/icons/keyword</normaloff>:/icons/keyword</iconset>
+          </property>
+         </widget>
+        </item>
        </layout>
       </widget>
      </item>
@@ -1867,6 +1878,16 @@
   <tabstop>spinPragmaWalAutoCheckpoint</tabstop>
   <tabstop>comboLogSubmittedBy</tabstop>
   <tabstop>buttonLogClear</tabstop>
+  <tabstop>mainTab</tabstop>
+  <tabstop>buttonBegin</tabstop>
+  <tabstop>buttonEnd</tabstop>
+  <tabstop>tabSqlAreas</tabstop>
+  <tabstop>treePlotColumns</tabstop>
+  <tabstop>comboLineType</tabstop>
+  <tabstop>comboPointShape</tabstop>
+  <tabstop>butSavePlot</tabstop>
+  <tabstop>buttonLoadAllData</tabstop>
+  <tabstop>treeSchemaDock</tabstop>
  </tabstops>
  <resources>
   <include location="icons/icons.qrc"/>
@@ -1959,8 +1980,8 @@
    <slot>addRecord()</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>443</x>
-     <y>141</y>
+     <x>402</x>
+     <y>143</y>
     </hint>
     <hint type="destinationlabel">
      <x>399</x>
@@ -1975,8 +1996,8 @@
    <slot>deleteRecord()</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>565</x>
-     <y>141</y>
+     <x>506</x>
+     <y>143</y>
     </hint>
     <hint type="destinationlabel">
      <x>399</x>
@@ -1991,8 +2012,8 @@
    <slot>navigatePrevious()</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>74</x>
-     <y>585</y>
+     <x>86</x>
+     <y>539</y>
     </hint>
     <hint type="destinationlabel">
      <x>399</x>
@@ -2007,8 +2028,8 @@
    <slot>navigateNext()</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>168</x>
-     <y>585</y>
+     <x>183</x>
+     <y>539</y>
     </hint>
     <hint type="destinationlabel">
      <x>399</x>
@@ -2023,8 +2044,8 @@
    <slot>navigateGoto()</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>413</x>
-     <y>586</y>
+     <x>365</x>
+     <y>539</y>
     </hint>
     <hint type="destinationlabel">
      <x>399</x>
@@ -2039,8 +2060,8 @@
    <slot>navigateGoto()</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>565</x>
-     <y>586</y>
+     <x>506</x>
+     <y>538</y>
     </hint>
     <hint type="destinationlabel">
      <x>399</x>
@@ -2295,8 +2316,8 @@
    <slot>createTreeContextMenu(QPoint)</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>101</x>
-     <y>125</y>
+     <x>111</x>
+     <y>261</y>
     </hint>
     <hint type="destinationlabel">
      <x>399</x>
@@ -2343,8 +2364,8 @@
    <slot>loadPragmas()</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>101</x>
-     <y>125</y>
+     <x>111</x>
+     <y>540</y>
     </hint>
     <hint type="destinationlabel">
      <x>-1</x>
@@ -2359,8 +2380,8 @@
    <slot>savePragmas()</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>101</x>
-     <y>125</y>
+     <x>111</x>
+     <y>540</y>
     </hint>
     <hint type="destinationlabel">
      <x>802</x>
@@ -2379,8 +2400,8 @@
      <y>126</y>
     </hint>
     <hint type="destinationlabel">
-     <x>691</x>
-     <y>163</y>
+     <x>632</x>
+     <y>173</y>
     </hint>
    </hints>
   </connection>
@@ -2395,8 +2416,8 @@
      <y>126</y>
     </hint>
     <hint type="destinationlabel">
-     <x>990</x>
-     <y>240</y>
+     <x>1028</x>
+     <y>230</y>
     </hint>
    </hints>
   </connection>
@@ -2407,12 +2428,12 @@
    <slot>setCurrentIndex(int)</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>872</x>
-     <y>126</y>
+     <x>772</x>
+     <y>135</y>
     </hint>
     <hint type="destinationlabel">
-     <x>987</x>
-     <y>240</y>
+     <x>1028</x>
+     <y>230</y>
     </hint>
    </hints>
   </connection>
@@ -2439,8 +2460,8 @@
    <slot>closeSqlTab(int)</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>81</x>
-     <y>125</y>
+     <x>91</x>
+     <y>259</y>
     </hint>
     <hint type="destinationlabel">
      <x>-1</x>
@@ -2663,8 +2684,8 @@
    <slot>navigateEnd()</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>189</x>
-     <y>573</y>
+     <x>223</x>
+     <y>539</y>
     </hint>
     <hint type="destinationlabel">
      <x>499</x>
@@ -2679,8 +2700,8 @@
    <slot>navigateBegin()</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>69</x>
-     <y>140</y>
+     <x>50</x>
+     <y>539</y>
     </hint>
     <hint type="destinationlabel">
      <x>499</x>
@@ -2727,8 +2748,8 @@
    <slot>jumpToRow(QString,QString,QByteArray)</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>60</x>
-     <y>105</y>
+     <x>70</x>
+     <y>242</y>
     </hint>
     <hint type="destinationlabel">
      <x>518</x>
@@ -2800,6 +2821,22 @@
     </hint>
    </hints>
   </connection>
+  <connection>
+   <sender>buttonLoadAllData</sender>
+   <signal>clicked()</signal>
+   <receiver>MainWindow</receiver>
+   <slot>browseDataFetchAllData()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>1003</x>
+     <y>389</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>1005</x>
+     <y>412</y>
+    </hint>
+   </hints>
+  </connection>
  </connections>
  <slots>
   <slot>fileOpen()</slot>
@@ -2860,5 +2897,6 @@
   <slot>showRowidColumn(bool)</slot>
   <slot>browseDataSetTableEncoding()</slot>
   <slot>browseDataSetDefaultTableEncoding()</slot>
+  <slot>browseDataFetchAllData()</slot>
  </slots>
 </ui>