Fixed issue #156.

--HG--
branch : develop

src/app/mainwindow.cpp

@@ -85,6 +85,8 @@ MainWindow::MainWindow(QWidget *parent)
     helpLabel = new QLabel(QObject::tr("Create new pattern piece to start working."));
     ui->statusBar->addWidget(helpLabel);
 
+    ToolBarZoom();
+
     pattern = new VContainer();
 
     doc = new VPattern(pattern, comboBoxDraws, &mode);
@@ -843,6 +845,24 @@ void MainWindow::ToolBarDraws()
     ui->actionLayout->setEnabled(false);
 }
 
+void MainWindow::ToolBarZoom()
+{
+    /*First we will try use Standard Shortcuts from Qt, but because keypad "-" and "+" not the same keys like in main
+    keypad, shortcut Ctrl+"-" or "+" from keypad will not working with standard shortcut (QKeySequence::ZoomIn or
+    QKeySequence::ZoomOut). For examle "+" is Qt::Key_Plus + Qt::KeypadModifier for keypad.
+    Also for me don't work Qt:CTRL and work Qt::ControlModifier.*/
+
+    const QList<QKeySequence> zoomInShortcuts = {QKeySequence::ZoomIn,
+                                                 Qt::ControlModifier + Qt::Key_Plus + Qt::KeypadModifier};
+    ui->actionZoomIn->setShortcuts(zoomInShortcuts);
+    connect(ui->actionZoomIn, &QAction::triggered, view, &VMainGraphicsView::ZoomIn);
+
+    const QList<QKeySequence> zoomOutShortcuts = {QKeySequence::ZoomOut,
+                                                 Qt::ControlModifier + Qt::Key_Minus + Qt::KeypadModifier};
+    ui->actionZoomOut->setShortcuts(zoomOutShortcuts);
+    connect(ui->actionZoomOut, &QAction::triggered, view, &VMainGraphicsView::ZoomOut);
+}
+
 //---------------------------------------------------------------------------------------------------------------------
 void MainWindow::InitToolButtons()
 {
@@ -1300,6 +1320,8 @@ void MainWindow::Clear()
     ui->actionOptionDraw->setEnabled(false);
     ui->actionSave->setEnabled(false);
     ui->actionPattern_properties->setEnabled(false);
+    ui->actionZoomIn->setEnabled(false);
+    ui->actionZoomOut->setEnabled(false);
     SetEnableTool(false);
     qApp->setPatternUnit(Valentina::Cm);
     qApp->setPatternType(Pattern::Individual);
@@ -1374,6 +1396,8 @@ void MainWindow::SetEnableWidgets(bool enable)
     }
     ui->actionTable->setEnabled(enable);
     ui->actionHistory->setEnabled(enable);
+    ui->actionZoomIn->setEnabled(enable);
+    ui->actionZoomOut->setEnabled(enable);
 }
 
 //---------------------------------------------------------------------------------------------------------------------

src/app/mainwindow.h

@@ -203,6 +203,7 @@ private:
     QTimer             *autoSaveTimer;
     void               ToolBarOption();
     void               ToolBarDraws();
+    void               ToolBarZoom();
     void               InitToolButtons();
     void               CancelTool();
     void               ArrowTool();

src/app/mainwindow.ui

@@ -694,6 +694,8 @@
     <addaction name="actionTable"/>
     <addaction name="actionHistory"/>
     <addaction name="actionLayout"/>
+    <addaction name="actionZoomIn"/>
+    <addaction name="actionZoomOut"/>
     <addaction name="separator"/>
     <addaction name="actionPattern_properties"/>
     <addaction name="actionOptions"/>
@@ -757,6 +759,19 @@
     <bool>false</bool>
    </attribute>
   </widget>
+  <widget class="QToolBar" name="toolBarZoom">
+   <property name="windowTitle">
+    <string>toolBar_2</string>
+   </property>
+   <attribute name="toolBarArea">
+    <enum>TopToolBarArea</enum>
+   </attribute>
+   <attribute name="toolBarBreak">
+    <bool>false</bool>
+   </attribute>
+   <addaction name="actionZoomIn"/>
+   <addaction name="actionZoomOut"/>
+  </widget>
   <action name="actionNew">
    <property name="icon">
     <iconset theme="document-new">
@@ -1002,6 +1017,34 @@
     <string>Pattern properties</string>
    </property>
   </action>
+  <action name="actionZoomIn">
+   <property name="enabled">
+    <bool>false</bool>
+   </property>
+   <property name="icon">
+    <iconset theme="zoom-in"/>
+   </property>
+   <property name="text">
+    <string>Zoom In</string>
+   </property>
+   <property name="toolTip">
+    <string>zoom in</string>
+   </property>
+  </action>
+  <action name="actionZoomOut">
+   <property name="enabled">
+    <bool>false</bool>
+   </property>
+   <property name="icon">
+    <iconset theme="zoom-out"/>
+   </property>
+   <property name="text">
+    <string>Zoom Out</string>
+   </property>
+   <property name="toolTip">
+    <string>Zoom out</string>
+   </property>
+  </action>
  </widget>
  <layoutdefault spacing="6" margin="11"/>
  <tabstops>

src/app/widgets/vmaingraphicsview.cpp

@@ -123,6 +123,22 @@ void VMainGraphicsView::animFinished()
     sender()->~QObject();
 }
 
+//---------------------------------------------------------------------------------------------------------------------
+void VMainGraphicsView::ZoomIn()
+{
+    scale(1.1, 1.1);
+    VAbstractTool::NewSceneRect(this->scene(), this);
+    emit NewFactor(1.1);
+}
+
+//---------------------------------------------------------------------------------------------------------------------
+void VMainGraphicsView::ZoomOut()
+{
+    scale(1.0/1.1, 1.0/1.1);
+    VAbstractTool::NewSceneRect(this->scene(), this);
+    emit NewFactor(1.0/1.1);
+}
+
 //---------------------------------------------------------------------------------------------------------------------
 void VMainGraphicsView::mousePressEvent(QMouseEvent *mousePress)
 {

src/app/widgets/vmaingraphicsview.h

@@ -64,6 +64,8 @@ public slots:
      * @brief animFinished
      */
     void     animFinished();
+    void     ZoomIn();
+    void     ZoomOut();
 protected:
     /**
      * @brief wheelEvent handle wheel events.