Clear backlog automatically

src/platform/qt/LogView.cpp

@@ -1,5 +1,8 @@
 #include "LogView.h"
 
+#include <QTextBlock>
+#include <QTextCursor>
+
 using namespace QGBA;
 
 LogView::LogView(QWidget* parent)
@@ -13,7 +16,9 @@ LogView::LogView(QWidget* parent)
 	connect(m_ui.levelError, SIGNAL(toggled(bool)), this, SLOT(setLevelError(bool)));
 	connect(m_ui.levelFatal, SIGNAL(toggled(bool)), this, SLOT(setLevelFatal(bool)));
 	connect(m_ui.levelGameError, SIGNAL(toggled(bool)), this, SLOT(setLevelGameError(bool)));
-	m_logLevel = -1;
+	connect(m_ui.clear, SIGNAL(clicked()), this, SLOT(clear()));
+	m_logLevel = GBA_LOG_WARN | GBA_LOG_ERROR | GBA_LOG_FATAL;
+	m_lines = 0;
 }
 
 void LogView::postLog(int level, const QString& log) {
@@ -21,6 +26,10 @@ void LogView::postLog(int level, const QString& log) {
 		return;
 	}
 	m_ui.view->appendPlainText(QString("%1:\t%2").arg(toString(level)).arg(log));
+	++m_lines;
+	if (m_lines > LINE_LIMIT) {
+		clearLine();
+	}
 }
 
 void LogView::clear() {
@@ -96,3 +105,12 @@ QString LogView::toString(int level) {
 	}
 	return QString();
 }
+
+void LogView::clearLine() {
+	QTextCursor cursor(m_ui.view->document());
+	cursor.setPosition(0);
+	cursor.select(QTextCursor::BlockUnderCursor);
+	cursor.removeSelectedText();
+	cursor.deleteChar();
+	--m_lines;
+}

src/platform/qt/LogView.h

@@ -31,12 +31,17 @@ private slots:
 	void setLevelGameError(bool);
 
 private:
+	static const int LINE_LIMIT = 1000;
+
 	Ui::LogView m_ui;
 	int m_logLevel;
+	int m_lines;
 
 	static QString toString(int level);
 	void setLevel(int level) { m_logLevel |= level; }
 	void clearLevel(int level) { m_logLevel &= ~level; }
+
+	void clearLine();
 };
 
 }

src/platform/qt/LogView.ui

@@ -28,7 +28,7 @@
            <string>Debug</string>
           </property>
           <property name="checked">
-           <bool>true</bool>
+           <bool>false</bool>
           </property>
          </widget>
         </item>
@@ -38,7 +38,7 @@
            <string>Stub</string>
           </property>
           <property name="checked">
-           <bool>true</bool>
+           <bool>false</bool>
           </property>
          </widget>
         </item>
@@ -48,7 +48,7 @@
            <string>Info</string>
           </property>
           <property name="checked">
-           <bool>true</bool>
+           <bool>false</bool>
           </property>
          </widget>
         </item>
@@ -104,7 +104,7 @@
            <string>Game Error</string>
           </property>
           <property name="checked">
-           <bool>true</bool>
+           <bool>false</bool>
           </property>
          </widget>
         </item>
@@ -143,22 +143,5 @@
   </layout>
  </widget>
  <resources/>
- <connections>
+ <connections/>
-  <connection>
-   <sender>clear</sender>
-   <signal>clicked()</signal>
-   <receiver>view</receiver>
-   <slot>clear()</slot>
-   <hints>
-    <hint type="sourcelabel">
-     <x>98</x>
-     <y>376</y>
-    </hint>
-    <hint type="destinationlabel">
-     <x>299</x>
-     <y>311</y>
-    </hint>
-   </hints>
-  </connection>
- </connections>
 </ui>