From e2c71c3844de35f20b9c7af8c513c993cf06cebb Mon Sep 17 00:00:00 2001
From: Simon Rettberg
Date: Thu, 19 Dec 2013 16:57:29 +0100
Subject: Check if the window is still centered once a second and move it if
 neccessary. This is needed to account for resolution changes while the
 vmChooser is being displayed.

---
 src/dialog.cpp | 20 ++++++++++++++++++++
 src/dialog.h   |  4 ++++
 src/main.cpp   |  2 +-
 3 files changed, 25 insertions(+), 1 deletion(-)

diff --git a/src/dialog.cpp b/src/dialog.cpp
index 21c5620..8ff215e 100644
--- a/src/dialog.cpp
+++ b/src/dialog.cpp
@@ -5,6 +5,8 @@
 #include <QRegExp>
 #include <QFile>
 #include <QProcess>
+#include <QTimer>
+#include <QDesktopWidget>
 
 #include "ui_dialog.h"
 #include "save_restore_session.h"
@@ -18,6 +20,13 @@ Dialog::Dialog(QWidget *parent)
 
     pvsSettings_ = NULL;
     ui->PVSOptionsGroupBox->hide();
+
+    // Re-center dialog every second to account for resolution changes
+    QRect desktopRect = QApplication::desktop()->availableGeometry(this);
+    oldCenter_ = desktopRect.center();
+    centerTimer_ = new QTimer(this);
+    connect(centerTimer_, SIGNAL(timeout()), this, SLOT(on_centerTimer()));
+    centerTimer_->start(1000);
 }
 
 Dialog::~Dialog() {
@@ -212,3 +221,14 @@ void Dialog::setTheme() {
 	ui->label_l->setStyleSheet(label_l_style);
 	ui->label_r->setStyleSheet(label_r_style);
 }
+
+void Dialog::on_centerTimer() {
+    // center dialog on primary screen
+    QRect desktopRect = QApplication::desktop()->availableGeometry(this);
+    QPoint center = desktopRect.center();
+    if (center != oldCenter_) {
+        this->move(center.x() - this->width() / 2, center.y() - this->height() / 2);
+        oldCenter_ = center;
+    }
+}
+
diff --git a/src/dialog.h b/src/dialog.h
index 805ed08..cc3627a 100644
--- a/src/dialog.h
+++ b/src/dialog.h
@@ -11,6 +11,7 @@
 namespace Ui {
     class Dialog;
 }
+class QTimer;
 
 class Dialog : public QDialog {
     Q_OBJECT
@@ -30,6 +31,8 @@ class Dialog : public QDialog {
     Ui::Dialog *ui;
     SessionTreeModel *model_;
     QSettings *pvsSettings_;
+    QPoint oldCenter_;
+    QTimer *centerTimer_;
     void readPVSSettings();
     void writePVSSettings();
 
@@ -39,6 +42,7 @@ class Dialog : public QDialog {
     void on_pushButtonStart_clicked();
     void on_pushButtonAbort_clicked();
     void on_treeView_activated(QModelIndex index);
+    void on_centerTimer();
 };
 
 #endif // DIALOG_H
diff --git a/src/main.cpp b/src/main.cpp
index 774f166..e5b8ce5 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -220,7 +220,7 @@ int main(int argc, char *argv[]) {
     w.selectSession(defaultSession);
     w.show();
 
-    // center dialog on screen
+    // center dialog on primary screen
     QRect desktopRect = QApplication::desktop()->availableGeometry(&w);
     QPoint center = desktopRect.center();
     w.move(center.x()-w.width()*0.5, center.y()-w.height()*0.5);
-- 
cgit v1.2.3-55-g7522