From f202bb58f49b2b6b045891ac9572644d676908be Mon Sep 17 00:00:00 2001
From: Gary Wang <wzc782970009@gmail.com>
Date: Thu, 25 Nov 2021 22:54:37 +0800
Subject: [PATCH] feat: new action for open a dialog to select image files

---
 app/actionmanager.cpp |  4 ++++
 app/actionmanager.h   |  2 ++
 app/mainwindow.cpp    | 15 +++++++++++++++
 app/mainwindow.h      |  2 ++
 4 files changed, 23 insertions(+)

diff --git a/app/actionmanager.cpp b/app/actionmanager.cpp
index 875d9bc..5ea2b85 100644
--- a/app/actionmanager.cpp
+++ b/app/actionmanager.cpp
@@ -41,6 +41,7 @@ void ActionManager::setupAction(MainWindow *mainWindow)
     CREATE_NEW_ACTION(mainWindow, actionPrevPicture);
     CREATE_NEW_ACTION(mainWindow, actionNextPicture);
 
+    CREATE_NEW_ACTION(mainWindow, actionOpen);
     CREATE_NEW_ACTION(mainWindow, actionHorizontalFlip);
     CREATE_NEW_ACTION(mainWindow, actionFitInView);
     CREATE_NEW_ACTION(mainWindow, actionFitByWidth);
@@ -63,6 +64,8 @@ void ActionManager::retranslateUi(MainWindow *mainWindow)
 {
     Q_UNUSED(mainWindow);
 
+    actionOpen->setText(QCoreApplication::translate("MainWindow", "&Open...", nullptr));
+
     actionActualSize->setText(QCoreApplication::translate("MainWindow", "Actual size", nullptr));
     actionToggleMaximize->setText(QCoreApplication::translate("MainWindow", "Toggle maximize", nullptr));
     actionZoomIn->setText(QCoreApplication::translate("MainWindow", "Zoom in", nullptr));
@@ -89,6 +92,7 @@ void ActionManager::retranslateUi(MainWindow *mainWindow)
 
 void ActionManager::setupShortcuts()
 {
+    actionOpen->setShortcut(QKeySequence(Qt::CTRL | Qt::Key_O));
     actionActualSize->setShortcut(QKeySequence(Qt::CTRL | Qt::Key_0));
     actionZoomIn->setShortcut(QKeySequence(QKeySequence::ZoomIn));
     actionZoomOut->setShortcut(QKeySequence(QKeySequence::ZoomOut));
diff --git a/app/actionmanager.h b/app/actionmanager.h
index f2aacfb..2577fde 100644
--- a/app/actionmanager.h
+++ b/app/actionmanager.h
@@ -16,6 +16,8 @@ public:
     void setupShortcuts();
 
 public:
+    QAction *actionOpen;
+
     QAction *actionActualSize;
     QAction *actionToggleMaximize;
     QAction *actionZoomIn;
diff --git a/app/mainwindow.cpp b/app/mainwindow.cpp
index d47be05..266eff3 100644
--- a/app/mainwindow.cpp
+++ b/app/mainwindow.cpp
@@ -27,6 +27,8 @@
 #include <QWindow>
 #include <QFile>
 #include <QTimer>
+#include <QFileDialog>
+#include <QStandardPaths>
 
 MainWindow::MainWindow(QWidget *parent)
     : FramelessWindow(parent)
@@ -406,6 +408,8 @@ void MainWindow::contextMenuEvent(QContextMenuEvent *event)
     QAction * helpAction = m_am->actionHelp;
     QAction * propertiesAction = m_am->actionProperties;
 
+    menu->addAction(m_am->actionOpen);
+
     if (copyMenu->actions().count() == 1) {
         menu->addActions(copyMenu->actions());
     } else {
@@ -540,6 +544,17 @@ QSize MainWindow::sizeHint() const
     return QSize(710, 530);
 }
 
+void MainWindow::on_actionOpen_triggered()
+{
+    QStringList picturesLocations = QStandardPaths::standardLocations(QStandardPaths::PicturesLocation);
+    QUrl pictureUrl = picturesLocations.isEmpty() ? QUrl::fromLocalFile(picturesLocations.first())
+                                                  : QUrl::fromLocalFile(QDir::homePath());
+    QList<QUrl> urls(QFileDialog::getOpenFileUrls(this, QString(), pictureUrl));
+    if (!urls.isEmpty()) {
+        showUrls(urls);
+    }
+}
+
 void MainWindow::on_actionActualSize_triggered()
 {
     m_graphicsView->resetScale();
diff --git a/app/mainwindow.h b/app/mainwindow.h
index 29c9d1a..e8e7fd1 100644
--- a/app/mainwindow.h
+++ b/app/mainwindow.h
@@ -68,6 +68,8 @@ protected:
     QSize sizeHint() const override;
 
 private slots:
+    void on_actionOpen_triggered();
+
     void on_actionActualSize_triggered();
     void on_actionToggleMaximize_triggered();
     void on_actionZoomIn_triggered();