Moved file picker widget from ACG to OpenFlipper. (It has OpenFlipper dependencies, that's why.)

git-svn-id: http://www.openflipper.org/svnrepo/OpenFlipper/branches/Free@17652 383ad7c9-94d9-4d36-a494-682f7c89f535

OpenFlipper/CoreApp/CMakeLists.txt

@@ -68,6 +68,7 @@ set (directories
   ../widgets/stereoSettingsWidget
   ../widgets/postProcessorWidget
   ../widgets/rendererWidget
+  ../widgets/filePicker 
   ${WIN_EXTRA_DIRS}
 )
 

OpenFlipper/widgets/filePicker/FilePicker.cc

+/*
+ * FilePicker.cc
+ *
+ *  Created on: Jan 8, 2013
+ *      Author: ebke
+ */
+
+#include "FilePicker.hh"
+
+#include <QHBoxLayout>
+#include <QMessageBox>
+
+FilePicker::FilePicker(QWidget *parent) :
+    QWidget(parent),
+    textBox_(new QComboBox),
+    browseButton_(new QPushButton(trUtf8("Browse…"))),
+    recent_files_ini_key_("GenericFilePickerRecents"),
+    dialog_type_(DT_OPEN_FILE),
+    overwrite_confirmed_by_user_(false) {
+
+    init();
+}
+
+FilePicker::FilePicker(QString recent_files_ini_key,
+                           DialogType dialog_type,
+                           QWidget *parent)  :
+    QWidget(parent),
+    textBox_(new QComboBox),
+    browseButton_(new QPushButton(trUtf8("Browse…"))),
+    recent_files_ini_key_(recent_files_ini_key),
+    dialog_type_(dialog_type),
+    overwrite_confirmed_by_user_(false) {
+
+    init();
+}
+
+void FilePicker::init() {
+    /*
+     * Do layout stuff.
+     */
+    textBox_->setSizePolicy(QSizePolicy::MinimumExpanding,
+                            textBox_->sizePolicy().verticalPolicy());
+    textBox_->setEditable(true);
+    textBox_->setSizeAdjustPolicy(QComboBox::AdjustToMinimumContentsLength);
+
+    QHBoxLayout *layout = new QHBoxLayout(this);
+    layout->setContentsMargins(0, 0, 0, 0);
+    layout->addWidget(textBox_);
+    layout->addWidget(browseButton_);
+
+    /*
+     * Do functional stuff.
+     */
+    textBox_->insertItems(
+            0,
+            OpenFlipper::Options::getRecentItems(recent_files_ini_key()));
+    connect(browseButton_, SIGNAL( clicked() ), this, SLOT( slot_browse() ));
+    //editTextChanged(const QString &);
+    connect(textBox_, SIGNAL( editTextChanged(const QString &) ),
+            this, SLOT( path_changed() ));
+}
+
+void FilePicker::set_recent_files_ini_key(QString value) {
+    recent_files_ini_key_ = value;
+    textBox_->clear();
+    textBox_->insertItems(
+            0,
+            OpenFlipper::Options::getRecentItems(recent_files_ini_key_));
+}
+
+void FilePicker::path_changed() {
+    overwrite_confirmed_by_user_ = false;
+}
+
+bool FilePicker::confirm_overwrite_if_necessary() {
+    if (overwrite_confirmed_by_user()) return true;
+    if (dialog_type() != DT_SAVE_FILE) return true;
+    if (!QFile::exists(currentFileName())) return true;
+
+    const QString file_name = QFileInfo(currentFileName()).fileName();
+    const QMessageBox::StandardButton result =
+            QMessageBox::question(
+                    this, trUtf8("Overwrite File?"),
+                    trUtf8("The file \"%1\" exists. "
+                            "Do you want to overwrite?")
+                            .arg(file_name),
+                    QMessageBox::Yes | QMessageBox::No,
+                    QMessageBox::Yes);
+
+    if (result == QMessageBox::Yes) {
+        overwrite_confirmed_by_user_ = true;
+        return true;
+    } else {
+        return false;
+    }
+}
+
+void FilePicker::slot_browse() {
+    OpenFlipper::Options::obtainPathName(
+            textBox_,
+            dialog_title().toUtf8().constData(),
+            file_filter().toUtf8().constData(),
+            recent_files_ini_key().toUtf8().constData(),
+            static_cast<OpenFlipper::Options::DialogType>(dialog_type()));
+
+    std::cout << "overwrite confirmed." << std::endl;
+    overwrite_confirmed_by_user_ = true;
+}
+
+FilePicker::~FilePicker() {
+}

OpenFlipper/widgets/filePicker/FilePicker.hh

+/*
+ * FilePicker.hh
+ *
+ *  Created on: Jan 8, 2013
+ *      Author: ebke
+ */
+
+#ifndef FILEPICKER_HH_
+#define FILEPICKER_HH_
+
+#include <QWidget>
+#include <QComboBox>
+#include <QLineEdit>
+#include <QPushButton>
+#include <OpenFlipper/common/RecentFiles.hh>
+
+class FilePicker : public QWidget {
+    Q_OBJECT
+    Q_PROPERTY(QString recent_files_ini_key
+               READ recent_files_ini_key
+               WRITE set_recent_files_ini_key)
+    Q_PROPERTY(QString dialog_title
+               READ dialog_title
+               WRITE set_dialog_title)
+    Q_PROPERTY(QString file_filter
+               READ file_filter
+               WRITE set_file_filter)
+    Q_PROPERTY(DialogType dialog_type
+               READ dialog_type
+               WRITE set_dialog_type)
+    Q_PROPERTY(QString current_file_name
+               READ current_file_name
+               WRITE set_current_file_name)
+    Q_ENUMS(DialogType)
+
+    public:
+        enum DialogType {
+            DT_OPEN_FILE = OpenFlipper::Options::DT_OPEN,
+            DT_SAVE_FILE = OpenFlipper::Options::DT_SAVE,
+            DT_CHOOSE_PATH = OpenFlipper::Options::DT_CHOOSE_PATH
+        };
+
+        explicit FilePicker(QWidget *parent = 0);
+        explicit FilePicker(QString recent_files_ini_key,
+                              DialogType dialog_type,
+                              QWidget *parent = 0);
+        virtual ~FilePicker();
+
+        QString current_file_name() {
+            return textBox_->currentText();
+        }
+
+        void set_current_file_name(QString value) {
+            return textBox_->lineEdit()->setText(value);
+        }
+
+        // Legacy:
+        QString currentFileName() {
+            return current_file_name();
+        }
+
+        QString recent_files_ini_key() { return recent_files_ini_key_; }
+        void set_recent_files_ini_key(QString value);
+
+        QString dialog_title() { return dialog_title_; }
+        void set_dialog_title(QString value) {
+            dialog_title_ = value;
+        }
+
+        QString file_filter() { return file_filter_; }
+        void set_file_filter(QString value) {
+            file_filter_ = value;
+        }
+
+        DialogType dialog_type() { return dialog_type_; }
+        void set_dialog_type(DialogType value) {
+            dialog_type_ = value;
+        }
+
+        bool overwrite_confirmed_by_user() {
+            return overwrite_confirmed_by_user_;
+        }
+
+    public slots:
+        bool confirm_overwrite_if_necessary();
+
+    protected slots:
+        void slot_browse();
+        void path_changed();
+
+    private:
+        void init();
+
+    protected:
+        QComboBox *textBox_;
+        QPushButton *browseButton_;
+        QString recent_files_ini_key_;
+        QString dialog_title_;
+        QString file_filter_;
+        DialogType dialog_type_;
+        bool overwrite_confirmed_by_user_;
+};
+
+#endif /* FILEPICKER_HH_ */