From f80b2293f535bfc6d321619c8d35e6f17474b427 Mon Sep 17 00:00:00 2001
From: Klaus Basan <klaus.basan@klausbasan.de>
Date: Thu, 24 May 2018 13:02:36 +0200
Subject: [PATCH] Scale UI component, used in launcher

---
 src/blackgui/components/scalescreenfactor.cpp |  77 ++++++++
 src/blackgui/components/scalescreenfactor.h   |  59 ++++++
 src/blackgui/components/scalescreenfactor.ui  |  66 +++++++
 src/swiftlauncher/swiftlauncher.cpp           |   3 +
 src/swiftlauncher/swiftlauncher.ui            | 168 ++++++++++--------
 5 files changed, 303 insertions(+), 70 deletions(-)
 create mode 100644 src/blackgui/components/scalescreenfactor.cpp
 create mode 100644 src/blackgui/components/scalescreenfactor.h
 create mode 100644 src/blackgui/components/scalescreenfactor.ui

diff --git a/src/blackgui/components/scalescreenfactor.cpp b/src/blackgui/components/scalescreenfactor.cpp
new file mode 100644
index 000000000..9476c78d2
--- /dev/null
+++ b/src/blackgui/components/scalescreenfactor.cpp
@@ -0,0 +1,77 @@
+/* Copyright (C) 2018
+ * swift project Community / Contributors
+ *
+ * This file is part of swift project. It is subject to the license terms in the LICENSE file found in the top-level
+ * directory of this distribution and at http://www.swift-project.org/license.html. No part of swift project,
+ * including this file, may be copied, modified, propagated, or distributed except according to the terms
+ * contained in the LICENSE file.
+ */
+
+#include "scalescreenfactor.h"
+#include "ui_scalescreenfactor.h"
+#include <QIntValidator>
+
+namespace BlackGui
+{
+    namespace Components
+    {
+        CScaleScreenFactor::CScaleScreenFactor(QWidget *parent) :
+            QFrame(parent),
+            ui(new Ui::CScaleScreenFactor)
+        {
+            ui->setupUi(this);
+            this->setMinMax(50, 150);
+
+            connect(ui->hs_Factor, &QSlider::valueChanged, this, &CScaleScreenFactor::onSliderChanged);
+            connect(ui->le_Factor, &QLineEdit::editingFinished, this, &CScaleScreenFactor::onEditFinished);
+        }
+
+        CScaleScreenFactor::~CScaleScreenFactor()
+        { }
+
+        void CScaleScreenFactor::setMinMax(int min, int max)
+        {
+            ui->hs_Factor->setMinimum(min);
+            ui->hs_Factor->setMaximum(max);
+            ui->le_Factor->setValidator(new QIntValidator(min, max, ui->le_Factor));
+
+            static const QString info("%1-%2");
+            ui->le_Factor->setToolTip(info.arg(min).arg(max));
+            ui->le_Factor->setPlaceholderText(info.arg(min).arg(max));
+            ui->hs_Factor->setToolTip(info.arg(min, max));
+
+            const int v = (min + max) / 2;
+            ui->hs_Factor->setValue(v);
+            ui->le_Factor->setText(QString::number(v));
+        }
+
+        qreal CScaleScreenFactor::getScaleFactor() const
+        {
+            return 0.01 * ui->hs_Factor->value();
+        }
+
+        QString CScaleScreenFactor::getScaleFactorAsString() const
+        {
+            const QString sf = QString::number(this->getScaleFactor(), 'f', 2);
+            return sf;
+        }
+
+        void CScaleScreenFactor::onSliderChanged(int value)
+        {
+            const QString v = QString::number(value);
+            if (ui->le_Factor->text() == v) { return; } // avoid signal roundtrips
+            ui->le_Factor->setText(v);
+        }
+
+        void CScaleScreenFactor::onEditFinished()
+        {
+            const QString v =  ui->le_Factor->text();
+            if (v.isEmpty()) { return; }
+            bool ok;
+            const int value = v.toInt(&ok);
+            if (!ok) { return; }
+            if (ui->hs_Factor->value() == value) { return; } // avoid signal roundtrips
+            ui->hs_Factor->setValue(value);
+        }
+    } // ns
+} // ns
diff --git a/src/blackgui/components/scalescreenfactor.h b/src/blackgui/components/scalescreenfactor.h
new file mode 100644
index 000000000..e5efaf247
--- /dev/null
+++ b/src/blackgui/components/scalescreenfactor.h
@@ -0,0 +1,59 @@
+/* Copyright (C) 2018
+ * swift project Community / Contributors
+ *
+ * This file is part of swift project. It is subject to the license terms in the LICENSE file found in the top-level
+ * directory of this distribution and at http://www.swift-project.org/license.html. No part of swift project,
+ * including this file, may be copied, modified, propagated, or distributed except according to the terms
+ * contained in the LICENSE file.
+ */
+
+//! \file
+
+#ifndef BLACKGUI_COMPONENTS_SCALESCREENFACTOR_H
+#define BLACKGUI_COMPONENTS_SCALESCREENFACTOR_H
+
+#include "blackgui/blackguiexport.h"
+#include <QFrame>
+#include <QScopedPointer>
+
+namespace Ui { class CScaleScreenFactor; }
+namespace BlackGui
+{
+    namespace Components
+    {
+        /**
+         * UI to scale screen factor
+         */
+        class BLACKGUI_EXPORT CScaleScreenFactor : public QFrame
+        {
+            Q_OBJECT
+
+        public:
+            //! Constructor
+            explicit CScaleScreenFactor(QWidget *parent = nullptr);
+
+            //! Destructor
+            virtual ~CScaleScreenFactor();
+
+            //! Minimum/maximum values
+            void setMinMax(int min, int max);
+
+            //! Scale factor
+            qreal getScaleFactor() const;
+
+            //! Scale factor as string
+            QString getScaleFactorAsString() const;
+
+        private:
+            //! Slider value changed
+            void onSliderChanged(int value);
+
+            //! Line edit change
+            void onEditFinished();
+
+            QScopedPointer<Ui::CScaleScreenFactor> ui;
+        };
+    } // ns
+}// ns
+
+#endif // guard
diff --git a/src/blackgui/components/scalescreenfactor.ui b/src/blackgui/components/scalescreenfactor.ui
new file mode 100644
index 000000000..2d6d85bd8
--- /dev/null
+++ b/src/blackgui/components/scalescreenfactor.ui
@@ -0,0 +1,66 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>CScaleScreenFactor</class>
+ <widget class="QFrame" name="CScaleScreenFactor">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>165</width>
+    <height>24</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Scale screen factor</string>
+  </property>
+  <layout class="QHBoxLayout" name="hl_ScaleScreenFactor" stretch="0,1,5">
+   <property name="leftMargin">
+    <number>1</number>
+   </property>
+   <property name="topMargin">
+    <number>1</number>
+   </property>
+   <property name="rightMargin">
+    <number>1</number>
+   </property>
+   <property name="bottomMargin">
+    <number>1</number>
+   </property>
+   <item>
+    <widget class="QLabel" name="lbl_Scale">
+     <property name="text">
+      <string>Scale:</string>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <widget class="QLineEdit" name="le_Factor">
+     <property name="maxLength">
+      <number>5</number>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <widget class="QSlider" name="hs_Factor">
+     <property name="minimum">
+      <number>50</number>
+     </property>
+     <property name="maximum">
+      <number>150</number>
+     </property>
+     <property name="singleStep">
+      <number>5</number>
+     </property>
+     <property name="value">
+      <number>100</number>
+     </property>
+     <property name="orientation">
+      <enum>Qt::Horizontal</enum>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>
diff --git a/src/swiftlauncher/swiftlauncher.cpp b/src/swiftlauncher/swiftlauncher.cpp
index adf116f8e..a14e6a02b 100644
--- a/src/swiftlauncher/swiftlauncher.cpp
+++ b/src/swiftlauncher/swiftlauncher.cpp
@@ -357,6 +357,9 @@ QString CSwiftLauncher::toCmdLine(const QString &exe, const QStringList &exeArgs
 void CSwiftLauncher::startButtonPressed()
 {
     const QObject *sender = QObject::sender();
+    const qreal scaleFactor = ui->comp_Scale->getScaleFactor();
+    CGuiApplication::highDpiScreenSupport(scaleFactor);
+
     if (sender == ui->tb_SwiftGui)
     {
         if (this->setSwiftGuiExecutable())
diff --git a/src/swiftlauncher/swiftlauncher.ui b/src/swiftlauncher/swiftlauncher.ui
index 6a55c08c7..c3beed1cd 100644
--- a/src/swiftlauncher/swiftlauncher.ui
+++ b/src/swiftlauncher/swiftlauncher.ui
@@ -99,7 +99,7 @@
                <x>0</x>
                <y>0</y>
                <width>392</width>
-               <height>319</height>
+               <height>299</height>
               </rect>
              </property>
              <attribute name="label">
@@ -130,7 +130,7 @@
                <x>0</x>
                <y>0</y>
                <width>392</width>
-               <height>319</height>
+               <height>299</height>
               </rect>
              </property>
              <attribute name="label">
@@ -195,7 +195,7 @@
                <x>0</x>
                <y>0</y>
                <width>392</width>
-               <height>319</height>
+               <height>299</height>
               </rect>
              </property>
              <attribute name="label">
@@ -361,7 +361,7 @@
                <x>0</x>
                <y>0</y>
                <width>392</width>
-               <height>319</height>
+               <height>299</height>
               </rect>
              </property>
              <attribute name="label">
@@ -443,7 +443,7 @@
                       <x>0</x>
                       <y>0</y>
                       <width>376</width>
-                      <height>156</height>
+                      <height>136</height>
                      </rect>
                     </property>
                     <layout class="QVBoxLayout" name="vl_DataUpdatesScrollArea">
@@ -494,7 +494,7 @@
                <x>0</x>
                <y>0</y>
                <width>392</width>
-               <height>319</height>
+               <height>299</height>
               </rect>
              </property>
              <attribute name="label">
@@ -531,7 +531,7 @@
             <property name="minimumSize">
              <size>
               <width>0</width>
-              <height>140</height>
+              <height>160</height>
              </size>
             </property>
             <property name="currentIndex">
@@ -543,68 +543,36 @@
                <x>0</x>
                <y>0</y>
                <width>392</width>
-               <height>116</height>
+               <height>136</height>
               </rect>
              </property>
              <attribute name="label">
               <string>Start application</string>
              </attribute>
              <layout class="QGridLayout" name="gl_Start">
-              <item row="0" column="2">
-               <widget class="QToolButton" name="tb_SwiftMappingTool">
-                <property name="toolTip">
-                 <string>start swift data (the mapping tool)</string>
+              <property name="leftMargin">
+               <number>3</number>
+              </property>
+              <property name="topMargin">
+               <number>3</number>
+              </property>
+              <property name="rightMargin">
+               <number>3</number>
+              </property>
+              <property name="bottomMargin">
+               <number>3</number>
+              </property>
+              <item row="0" column="0" colspan="5">
+               <widget class="BlackGui::Components::CScaleScreenFactor" name="comp_Scale">
+                <property name="frameShape">
+                 <enum>QFrame::StyledPanel</enum>
                 </property>
-                <property name="text">
-                 <string>mapping tool</string>
-                </property>
-                <property name="icon">
-                 <iconset resource="../blackmisc/blackmisc.qrc">
-                  <normaloff>:/own/icons/own/swift3D/sw3DGreen-256.png</normaloff>:/own/icons/own/swift3D/sw3DGreen-256.png</iconset>
-                </property>
-                <property name="iconSize">
-                 <size>
-                  <width>64</width>
-                  <height>64</height>
-                 </size>
+                <property name="frameShadow">
+                 <enum>QFrame::Raised</enum>
                 </property>
                </widget>
               </item>
-              <item row="0" column="4">
-               <widget class="QToolButton" name="tb_Database">
-                <property name="toolTip">
-                 <string>open browser for swift database</string>
-                </property>
-                <property name="text">
-                 <string>goto swift database</string>
-                </property>
-                <property name="icon">
-                 <iconset resource="../blackmisc/blackmisc.qrc">
-                  <normaloff>:/own/icons/own/swift3D/sw3DGreen-256.png</normaloff>:/own/icons/own/swift3D/sw3DGreen-256.png</iconset>
-                </property>
-                <property name="iconSize">
-                 <size>
-                  <width>48</width>
-                  <height>48</height>
-                 </size>
-                </property>
-               </widget>
-              </item>
-              <item row="1" column="2" alignment="Qt::AlignHCenter">
-               <widget class="QLabel" name="lbl_SwiftData">
-                <property name="text">
-                 <string>mapping tool</string>
-                </property>
-               </widget>
-              </item>
-              <item row="1" column="1" alignment="Qt::AlignHCenter">
-               <widget class="QLabel" name="lbl_SwiftCore">
-                <property name="text">
-                 <string>core</string>
-                </property>
-               </widget>
-              </item>
-              <item row="0" column="0">
+              <item row="1" column="0">
                <widget class="QToolButton" name="tb_SwiftGui">
                 <property name="toolTip">
                  <string>start swift GUI</string>
@@ -624,14 +592,7 @@
                 </property>
                </widget>
               </item>
-              <item row="1" column="0" alignment="Qt::AlignHCenter">
-               <widget class="QLabel" name="lbl_SwiftGui">
-                <property name="text">
-                 <string>GUI</string>
-                </property>
-               </widget>
-              </item>
-              <item row="0" column="1">
+              <item row="1" column="1">
                <widget class="QToolButton" name="tb_SwiftCore">
                 <property name="toolTip">
                  <string>start swift core</string>
@@ -651,7 +612,27 @@
                 </property>
                </widget>
               </item>
-              <item row="0" column="3">
+              <item row="1" column="2">
+               <widget class="QToolButton" name="tb_SwiftMappingTool">
+                <property name="toolTip">
+                 <string>start swift data (the mapping tool)</string>
+                </property>
+                <property name="text">
+                 <string>mapping tool</string>
+                </property>
+                <property name="icon">
+                 <iconset resource="../blackmisc/blackmisc.qrc">
+                  <normaloff>:/own/icons/own/swift3D/sw3DGreen-256.png</normaloff>:/own/icons/own/swift3D/sw3DGreen-256.png</iconset>
+                </property>
+                <property name="iconSize">
+                 <size>
+                  <width>64</width>
+                  <height>64</height>
+                 </size>
+                </property>
+               </widget>
+              </item>
+              <item row="1" column="3">
                <widget class="QToolButton" name="tb_ConfigurationWizard">
                 <property name="text">
                  <string>...</string>
@@ -668,14 +649,55 @@
                 </property>
                </widget>
               </item>
-              <item row="1" column="3" alignment="Qt::AlignHCenter">
+              <item row="1" column="4">
+               <widget class="QToolButton" name="tb_Database">
+                <property name="toolTip">
+                 <string>open browser for swift database</string>
+                </property>
+                <property name="text">
+                 <string>goto swift database</string>
+                </property>
+                <property name="icon">
+                 <iconset resource="../blackmisc/blackmisc.qrc">
+                  <normaloff>:/own/icons/own/swift3D/sw3DGreen-256.png</normaloff>:/own/icons/own/swift3D/sw3DGreen-256.png</iconset>
+                </property>
+                <property name="iconSize">
+                 <size>
+                  <width>48</width>
+                  <height>48</height>
+                 </size>
+                </property>
+               </widget>
+              </item>
+              <item row="2" column="0">
+               <widget class="QLabel" name="lbl_SwiftGui">
+                <property name="text">
+                 <string>GUI</string>
+                </property>
+               </widget>
+              </item>
+              <item row="2" column="1">
+               <widget class="QLabel" name="lbl_SwiftCore">
+                <property name="text">
+                 <string>core</string>
+                </property>
+               </widget>
+              </item>
+              <item row="2" column="2">
+               <widget class="QLabel" name="lbl_SwiftData">
+                <property name="text">
+                 <string>mapping tool</string>
+                </property>
+               </widget>
+              </item>
+              <item row="2" column="3">
                <widget class="QLabel" name="lbl_Wizard">
                 <property name="text">
                  <string>config</string>
                 </property>
                </widget>
               </item>
-              <item row="1" column="4" alignment="Qt::AlignHCenter">
+              <item row="2" column="4">
                <widget class="QLabel" name="lbl_Database">
                 <property name="text">
                  <string>goto DB</string>
@@ -778,6 +800,12 @@
    <header>blackgui/components/abouthtmlcomponent.h</header>
    <container>1</container>
   </customwidget>
+  <customwidget>
+   <class>BlackGui::Components::CScaleScreenFactor</class>
+   <extends>QFrame</extends>
+   <header>blackgui/components/scalescreenfactor.h</header>
+   <container>1</container>
+  </customwidget>
  </customwidgets>
  <tabstops>
   <tabstop>tbr_LatestNews</tabstop>