From 246615f946a8063bcd68ba7c008e3cd0d3e6b615 Mon Sep 17 00:00:00 2001
From: Aqua-sama <aqua@iserlohn-fortress.net>
Date: Sun, 1 Nov 2020 21:02:13 +0200
Subject: Add original size and fit buttons

---
 meson.build        |  2 +-
 src/mainwindow.cpp | 21 +++++++++----
 src/mainwindow.h   |  2 ++
 src/mainwindow.ui  | 87 +++++++++++++++++++++++++++++++++++++++++++++++++-----
 4 files changed, 97 insertions(+), 15 deletions(-)

diff --git a/meson.build b/meson.build
index 7c3aac3..3907431 100644
--- a/meson.build
+++ b/meson.build
@@ -1,6 +1,6 @@
 project('qimv', 'cpp',
   version : '0.1',
-  default_options : ['warning_level=3', 'cpp_std=c++14'])
+  default_options : ['warning_level=3', 'cpp_std=c++17'])
 
 summary({
   'prefix': get_option('prefix'),
diff --git a/src/mainwindow.cpp b/src/mainwindow.cpp
index 9eba572..839b2c3 100644
--- a/src/mainwindow.cpp
+++ b/src/mainwindow.cpp
@@ -13,17 +13,26 @@ MainWindow::MainWindow(const QStringList &filePaths, QWidget *parent)
   if (!filePaths.isEmpty()) {
     current.load(filePaths.first());
     setWindowTitle(title_format.arg(filePaths.first()));
-    ui->label->setPixmap(current);
+    resizePixmap();
   }
+
+  connect(ui->original_toolButton, &QToolButton::clicked, this,
+          [this]() { ui->label->setPixmap(current); });
+
+  connect(ui->fit_toolButton, &QToolButton::clicked, this,
+          [this]() { resizePixmap(); });
 }
 
 MainWindow::~MainWindow() { delete ui; }
 
 void MainWindow::resizeEvent(QResizeEvent *event) {
-  const auto width = ui->label->width();
-  const auto height = ui->label->height();
-
-  ui->label->setPixmap(current.scaled(width, height, Qt::KeepAspectRatio));
-
+  resizePixmap();
   QMainWindow::resizeEvent(event);
 }
+
+void MainWindow::resizePixmap() {
+  const auto size =
+      ui->scrollArea->viewport()->size().boundedTo(current.size());
+  ui->label->setPixmap(
+      current.scaled(size, Qt::KeepAspectRatio, Qt::SmoothTransformation));
+}
diff --git a/src/mainwindow.h b/src/mainwindow.h
index a270fd8..dfd704b 100644
--- a/src/mainwindow.h
+++ b/src/mainwindow.h
@@ -18,6 +18,8 @@ protected:
   void resizeEvent(QResizeEvent *event) override;
 
 private:
+  void resizePixmap();
+
   Ui::MainWindow *ui;
   QPixmap current;
   const QString title_format{"qimv [%1]"};
diff --git a/src/mainwindow.ui b/src/mainwindow.ui
index 5ea19df..733b06e 100644
--- a/src/mainwindow.ui
+++ b/src/mainwindow.ui
@@ -14,7 +14,7 @@
    <string>qimv</string>
   </property>
   <widget class="QWidget" name="centralwidget">
-   <layout class="QVBoxLayout" name="verticalLayout">
+   <layout class="QVBoxLayout" name="verticalLayout_2">
     <property name="leftMargin">
      <number>0</number>
     </property>
@@ -28,15 +28,87 @@
      <number>0</number>
     </property>
     <item>
-     <widget class="QLabel" name="label">
-      <property name="text">
-       <string>[ no data ]</string>
-      </property>
-      <property name="alignment">
-       <set>Qt::AlignCenter</set>
+     <widget class="QScrollArea" name="scrollArea">
+      <property name="widgetResizable">
+       <bool>true</bool>
       </property>
+      <widget class="QWidget" name="scrollAreaWidgetContents">
+       <property name="geometry">
+        <rect>
+         <x>0</x>
+         <y>0</y>
+         <width>798</width>
+         <height>548</height>
+        </rect>
+       </property>
+       <layout class="QVBoxLayout" name="verticalLayout">
+        <property name="spacing">
+         <number>0</number>
+        </property>
+        <property name="leftMargin">
+         <number>0</number>
+        </property>
+        <property name="topMargin">
+         <number>0</number>
+        </property>
+        <property name="rightMargin">
+         <number>0</number>
+        </property>
+        <property name="bottomMargin">
+         <number>0</number>
+        </property>
+        <item>
+         <widget class="QLabel" name="label">
+          <property name="text">
+           <string>[ no data ]</string>
+          </property>
+          <property name="alignment">
+           <set>Qt::AlignCenter</set>
+          </property>
+         </widget>
+        </item>
+       </layout>
+      </widget>
      </widget>
     </item>
+    <item>
+     <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="QToolButton" name="original_toolButton">
+        <property name="text">
+         <string>orig</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <widget class="QToolButton" name="fit_toolButton">
+        <property name="text">
+         <string>fit</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <widget class="QSlider" name="horizontalSlider">
+        <property name="orientation">
+         <enum>Qt::Horizontal</enum>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </item>
    </layout>
   </widget>
   <widget class="QMenuBar" name="menubar">
@@ -56,7 +128,6 @@
    </widget>
    <addaction name="menuqimv"/>
   </widget>
-  <widget class="QStatusBar" name="statusbar"/>
   <action name="actionQuit">
    <property name="text">
     <string>Quit</string>
-- 
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