SubsurfaceAbout class cleanup.

Main change is that now SubsurfaceAbout doesn't have instance object, but
it constructs and destructs dynamically.

 * Remove the static SubsurfaceAbout::instance() class member
 * construct/destruct about dialog on demand
 * Other small aboutbox cleanups.

Signed-off-by: Boris Barbulovski <bbarbulovski@gmail.com>
ACK-ed-by: Tomaz Canabrava <tcanabrava@kde.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

4 files changed, 72 insertions, 63 deletions

diff --git a/qt-ui/about.cpp b/qt-ui/about.cpp
index 0a6489d93..804d73b7c 100644
--- a/qt-ui/about.cpp
+++ b/qt-ui/about.cpp
@@ -1,39 +1,26 @@
 #include "about.h"
 #include "ssrf-version.h"
-#include "mainwindow.h"
-#include <QDebug>
-#include <QDialogButtonBox>
-#include <QNetworkReply>
-#include <qdesktopservices.h>
-
-SubsurfaceAbout *SubsurfaceAbout::instance()
-{
-	static SubsurfaceAbout *self = new SubsurfaceAbout(mainWindow());
-	self->setAttribute(Qt::WA_QuitOnClose, false);
-	return self;
-}
+#include <QDesktopServices>
+#include <QUrl>
 
 SubsurfaceAbout::SubsurfaceAbout(QWidget* parent, Qt::WindowFlags f)
 {
 	ui.setupUi(this);
+
+	setWindowModality(Qt::ApplicationModal);
+
 	ui.aboutLabel->setText(tr("<span style='font-size: 18pt; font-weight: bold;'>" \
 		"Subsurface %1 </span><br><br>" \
 		"Multi-platform divelog software<br>" \
 		"<span style='font-size: 8pt'>Linus Torvalds, Dirk Hohndel, and others, 2011-2014</span>").arg(VERSION_STRING));
-	licenseButton = new QPushButton(tr("&License"));
-	websiteButton = new QPushButton(tr("&Website"));
-	ui.buttonBox->addButton(licenseButton, QDialogButtonBox::ActionRole);
-	ui.buttonBox->addButton(websiteButton, QDialogButtonBox::ActionRole);
-	connect(licenseButton, SIGNAL(clicked(bool)), this, SLOT(licenseClicked()));
-	connect(websiteButton, SIGNAL(clicked(bool)), this, SLOT(websiteClicked()));
 }
 
-void SubsurfaceAbout::licenseClicked(void)
+void SubsurfaceAbout::on_licenseButton_clicked()
 {
 	QDesktopServices::openUrl(QUrl("http://www.gnu.org/licenses/gpl-2.0.txt"));
 }
 
-void SubsurfaceAbout::websiteClicked(void)
+void SubsurfaceAbout::on_websiteButton_clicked()
 {
 	QDesktopServices::openUrl(QUrl("http://subsurface.hohndel.org"));
 }
diff --git a/qt-ui/about.h b/qt-ui/about.h
index 06dc30c87..0a4c8ddb5 100644
--- a/qt-ui/about.h
+++ b/qt-ui/about.h
@@ -9,14 +9,11 @@ class SubsurfaceAbout : public QDialog {
 	Q_OBJECT
 
 public:
-	static SubsurfaceAbout* instance();
+	explicit SubsurfaceAbout(QWidget* parent = 0, Qt::WindowFlags f = 0);
 private slots:
-	void licenseClicked();
-	void websiteClicked();
+	void on_licenseButton_clicked();
+	void on_websiteButton_clicked();
 private:
-	explicit SubsurfaceAbout(QWidget* parent = 0, Qt::WindowFlags f = 0);
-	QPushButton *licenseButton;
-	QPushButton *websiteButton;
 	Ui::SubsurfaceAbout ui;
 };
 
diff --git a/qt-ui/about.ui b/qt-ui/about.ui
index 71f0acb0f..0c1735e26 100644
--- a/qt-ui/about.ui
+++ b/qt-ui/about.ui
@@ -29,22 +29,7 @@
   <property name="modal">
    <bool>true</bool>
   </property>
-  <layout class="QVBoxLayout" name="verticalLayout_2">
-   <property name="spacing">
-    <number>20</number>
-   </property>
-   <property name="leftMargin">
-    <number>30</number>
-   </property>
-   <property name="topMargin">
-    <number>30</number>
-   </property>
-   <property name="rightMargin">
-    <number>30</number>
-   </property>
-   <property name="bottomMargin">
-    <number>20</number>
-   </property>
+  <layout class="QVBoxLayout" name="verticalLayout" stretch="0,1,0">
    <item>
     <widget class="QLabel" name="subsurfaceIcon">
      <property name="text">
@@ -61,7 +46,7 @@
    <item>
     <widget class="QLabel" name="aboutLabel">
      <property name="text">
-      <string></string>
+      <string/>
      </property>
      <property name="textFormat">
       <enum>Qt::RichText</enum>
@@ -75,17 +60,55 @@
     </widget>
    </item>
    <item>
-    <widget class="QDialogButtonBox" name="buttonBox">
-     <property name="orientation">
-      <enum>Qt::Horizontal</enum>
-     </property>
-     <property name="standardButtons">
-      <set>QDialogButtonBox::Close</set>
-     </property>
-     <property name="centerButtons">
-      <bool>true</bool>
-     </property>
-    </widget>
+    <layout class="QHBoxLayout" name="horizontalLayout">
+     <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="licenseButton">
+       <property name="text">
+        <string>&amp;License</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QPushButton" name="websiteButton">
+       <property name="text">
+        <string>&amp;Website</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QPushButton" name="closeButton">
+       <property name="text">
+        <string>&amp;Close</string>
+       </property>
+      </widget>
+     </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>
+    </layout>
    </item>
   </layout>
  </widget>
@@ -94,18 +117,18 @@
  </resources>
  <connections>
   <connection>
-   <sender>buttonBox</sender>
-   <signal>rejected()</signal>
+   <sender>closeButton</sender>
+   <signal>clicked()</signal>
    <receiver>SubsurfaceAbout</receiver>
-   <slot>close()</slot>
+   <slot>accept()</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>227</x>
-     <y>437</y>
+     <x>290</x>
+     <y>411</y>
     </hint>
     <hint type="destinationlabel">
-     <x>227</x>
-     <y>224</y>
+     <x>340</x>
+     <y>409</y>
     </hint>
    </hints>
   </connection>
diff --git a/qt-ui/mainwindow.cpp b/qt-ui/mainwindow.cpp
index 6d7123a05..73191dacf 100644
--- a/qt-ui/mainwindow.cpp
+++ b/qt-ui/mainwindow.cpp
@@ -503,7 +503,9 @@ void MainWindow::on_actionInputPlan_triggered()
 
 void MainWindow::on_actionAboutSubsurface_triggered()
 {
-	SubsurfaceAbout::instance()->show();
+	SubsurfaceAbout dlg(this);
+
+	dlg.exec();
 }
 
 void MainWindow::on_actionUserManual_triggered()
@@ -900,4 +902,4 @@ void MainWindow::on_profSAC_clicked(bool triggered)
 	TOOLBOX_PREF_PROFILE(show_sac);
 }
 
-#undef TOOLBOX_PREF_PROFILE
\ No newline at end of file
+#undef TOOLBOX_PREF_PROFILE