From d39c6b9dd219f4db1a765c67a34ca67c0d9a001e Mon Sep 17 00:00:00 2001
From: Herwig Birke <Herwig.Birke@windesign.at>
Date: Tue, 18 Feb 2020 17:34:02 +0100
Subject: [PATCH] print preview zoom

---
 cprint.cpp       | 34 +++++++++++++++++++++++++++++-----
 cprint.h         | 26 ++++++++++++++++++++++++++
 cprint.ui        | 48 ++++++++++++++++++++++++++++++++++++++++++++++--
 pictureprint.qrc | 11 +++++++++++
 4 files changed, 112 insertions(+), 7 deletions(-)

diff --git a/cprint.cpp b/cprint.cpp
index 596fb3d..c44a760 100644
--- a/cprint.cpp
+++ b/cprint.cpp
@@ -67,17 +67,21 @@ cPrint::cPrint(QProgressBar* lpProgressBar, QListView* lpSelectedList, QStandard
 	m_lpPrintPreviewWidget->setObjectName(QString::fromUtf8("m_lpPrintPreviewWidget"));
 	ui->m_lpSplitter->insertWidget(0, m_lpPrintPreviewWidget);
 
-	const QIcon	zoomOutIcon			= QIcon::fromTheme("document-new");
-	const QIcon	zoomInIcon			= QIcon::fromTheme("zoom-in");
-
-	ui->m_lpZoomOut->setIcon(zoomOutIcon);
-	ui->m_lpZoomIn->setIcon(zoomInIcon);
+	ui->m_lpZoomOut->setIcon(QIcon::fromTheme("zoom-out"));
+	ui->m_lpZoomFit->setIcon(QIcon::fromTheme("zoom-fit"));
+	ui->m_lpZoomOriginal->setIcon(QIcon::fromTheme("zoom-original"));
+	ui->m_lpZoomIn->setIcon(QIcon::fromTheme("zoom-in"));
 
 	connect(ui->m_lpPrinterSelect,		&QComboBox::currentTextChanged,			this,	&cPrint::onPrinterChanged);
 	connect(ui->m_lpPrinterProperties,	&QPushButton::clicked,					this,	&cPrint::onPrinterSettings);
 	connect(ui->m_lpPrintPreview,		&QPushButton::clicked,					this,	&cPrint::onPrintPreview);
 	connect(ui->m_lpPrint,				&QPushButton::clicked,					this,	&cPrint::onPrint);
 
+	connect(ui->m_lpZoomOut,			&QPushButton::clicked,					this,	&cPrint::onZoomOut);
+	connect(ui->m_lpZoomFit,			&QPushButton::clicked,					this,	&cPrint::onZoomFit);
+	connect(ui->m_lpZoomOriginal,		&QPushButton::clicked,					this,	&cPrint::onZoomOriginal);
+	connect(ui->m_lpZoomIn,				&QPushButton::clicked,					this,	&cPrint::onZoomIn);
+
 	connect(m_lpPrintPreviewWidget,		&QPrintPreviewWidget::paintRequested,	this,	&cPrint::onPaintRequested);
 }
 
@@ -194,3 +198,23 @@ void cPrint::onPrint()
 //		painter.drawPixmap(0, 0, pixmap);
 //	}
 }
+
+void cPrint::onZoomOut()
+{
+	m_lpPrintPreviewWidget->zoomOut();
+}
+
+void cPrint::onZoomFit()
+{
+	m_lpPrintPreviewWidget->fitInView();
+}
+
+void cPrint::onZoomOriginal()
+{
+	m_lpPrintPreviewWidget->setZoomFactor(1.0);
+}
+
+void cPrint::onZoomIn()
+{
+	m_lpPrintPreviewWidget->zoomIn();
+}
diff --git a/cprint.h b/cprint.h
index d5671ae..898e528 100644
--- a/cprint.h
+++ b/cprint.h
@@ -92,6 +92,32 @@ private slots:
 	 \param printer
 	*/
 	void									onPaintRequested(QPrinter* printer);
+
+	/*!
+	 \brief
+
+	 \fn onZoomOut
+	*/
+	void									onZoomOut();
+	/*!
+	 \brief
+
+	 \fn onZoomFit
+	*/
+	void									onZoomFit();
+	/*!
+	 \brief
+
+	 \fn onZoomOriginal
+	*/
+	void									onZoomOriginal();
+	/*!
+	 \brief
+
+	 \fn onZoomIn
+	*/
+	void									onZoomIn();
+
 };
 
 #endif // CPRINT_H
diff --git a/cprint.ui b/cprint.ui
index 976a6a4..1b61328 100644
--- a/cprint.ui
+++ b/cprint.ui
@@ -197,15 +197,59 @@
       <layout class="QHBoxLayout" name="horizontalLayout">
        <item>
         <widget class="QToolButton" name="m_lpZoomOut">
+         <property name="toolTip">
+          <string>zoom out</string>
+         </property>
+         <property name="statusTip">
+          <string>zoom out</string>
+         </property>
          <property name="text">
-          <string>...</string>
+          <string>zoom out</string>
+         </property>
+         <property name="iconSize">
+          <size>
+           <width>24</width>
+           <height>24</height>
+          </size>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <widget class="QToolButton" name="m_lpZoomFit">
+         <property name="toolTip">
+          <string>zoo to fit</string>
+         </property>
+         <property name="statusTip">
+          <string>zoom to fit</string>
+         </property>
+         <property name="text">
+          <string>zoom to fit</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <widget class="QToolButton" name="m_lpZoomOriginal">
+         <property name="toolTip">
+          <string>zoom original</string>
+         </property>
+         <property name="statusTip">
+          <string>zoom original</string>
+         </property>
+         <property name="text">
+          <string>zoom original</string>
          </property>
         </widget>
        </item>
        <item>
         <widget class="QToolButton" name="m_lpZoomIn">
+         <property name="toolTip">
+          <string>zoom in</string>
+         </property>
+         <property name="statusTip">
+          <string>zoom in</string>
+         </property>
          <property name="text">
-          <string>...</string>
+          <string>zoom in</string>
          </property>
         </widget>
        </item>
diff --git a/pictureprint.qrc b/pictureprint.qrc
index 16118c4..e047c37 100644
--- a/pictureprint.qrc
+++ b/pictureprint.qrc
@@ -5,5 +5,16 @@
     <qresource prefix="/icons/arc">
         <file alias="index.theme">images/arc/index.theme</file>
         <file alias="16x16/zoom-in.png">images/arc/16x16/actions/zoom-in.png</file>
+        <file alias="16x16/zoom-fit.png">images/arc/16x16/actions/zoom-fit.png</file>
+        <file alias="16x16/zoom-original.png">images/arc/16x16/actions/zoom-original.png</file>
+        <file alias="16x16/zoom-out.png">images/arc/16x16/actions/zoom-out.png</file>
+        <file alias="22x22/zoom-fit.png">images/arc/22x22/actions/zoom-fit.png</file>
+        <file alias="22x22/zoom-in.png">images/arc/22x22/actions/zoom-in.png</file>
+        <file alias="22x22/zoom-original.png">images/arc/22x22/actions/zoom-original.png</file>
+        <file alias="22x22/zoom-out.png">images/arc/22x22/actions/zoom-out.png</file>
+        <file alias="24x24/zoom-fit.png">images/arc/24x24/actions/zoom-fit.png</file>
+        <file alias="24x24/zoom-in.png">images/arc/24x24/actions/zoom-in.png</file>
+        <file alias="24x24/zoom-original.png">images/arc/24x24/actions/zoom-original.png</file>
+        <file alias="24x24/zoom-out.png">images/arc/24x24/actions/zoom-out.png</file>
     </qresource>
 </RCC>