Merge branch 'master' of https://github.com/huderlem/porymap into slam

include/core/filedialog.h

@@ -0,0 +1,65 @@
+#ifndef FILEDIALOG_H
+#define FILEDIALOG_H
+
+#include <QFileDialog>
+
+/*
+    Static QFileDialog functions will (unless otherwise specified) use native file dialogs.
+    In general this is good (we want our file dialogs to be visually seamless) but unfortunately
+    the native file dialogs ignore the parent widget, so in some cases they'll return focus to
+    the main window rather than the window that opened the file dialog.
+
+    To make working around this a little easier we use this class, which will use the native
+    file dialog and manually return focus to the parent widget.
+
+    It will also save the directory of the previous file selected in a file dialog, and if
+    no 'dir' argument is specified it will open new dialogs at that directory.
+
+*/
+
+class FileDialog : public QFileDialog
+{
+public:
+    FileDialog(QWidget *parent, Qt::WindowFlags flags) : QFileDialog(parent, flags) {};
+    FileDialog(QWidget *parent = nullptr,
+               const QString &caption = QString(),
+               const QString &directory = QString(),
+               const QString &filter = QString()) : QFileDialog(parent, caption, directory, filter) {};
+
+    static void setDirectory(const QString &dir) { FileDialog::prevDirectory = dir; }
+    static QString getDirectory() { return FileDialog::prevDirectory; }
+
+    static QString getOpenFileName(QWidget *parent = nullptr,
+                                   const QString &caption = QString(),
+                                   const QString &dir = QString(),
+                                   const QString &filter = QString(),
+                                   QString *selectedFilter = nullptr,
+                                   QFileDialog::Options options = Options());
+
+    static QStringList getOpenFileNames(QWidget *parent = nullptr,
+                                        const QString &caption = QString(),
+                                        const QString &dir = QString(),
+                                        const QString &filter = QString(),
+                                        QString *selectedFilter = nullptr,
+                                        QFileDialog::Options options = Options());
+
+    static QString getExistingDirectory(QWidget *parent = nullptr,
+                                        const QString &caption = QString(),
+                                        const QString &dir = QString(),
+                                        QFileDialog::Options options = ShowDirsOnly);
+
+    static QString getSaveFileName(QWidget *parent = nullptr,
+                                   const QString &caption = QString(),
+                                   const QString &dir = QString(),
+                                   const QString &filter = QString(),
+                                   QString *selectedFilter = nullptr,
+                                   QFileDialog::Options options = Options());
+
+private:
+    static QString prevDirectory;
+    static QString getDirectoryFromInput(const QString &dir);
+    static void setDirectoryFromFile(const QString &fileName);
+    static void restoreFocus(QWidget *parent);
+};
+
+#endif // FILEDIALOG_H