dialog.h Example File

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 #ifndef DIALOG_H
 #define DIALOG_H

 #include <QWidget>

 class QCheckBox;
 class QLabel;
 class QErrorMessage;

 class DialogOptionsWidget;

 class Dialog : public QWidget
 {
     Q_OBJECT

 public:
     Dialog(QWidget *parent = 0);

 private slots:
     void setInteger();
     void setDouble();
     void setItem();
     void setText();
     void setColor();
     void setFont();
     void setExistingDirectory();
     void setOpenFileName();
     void setOpenFileNames();
     void setSaveFileName();
     void criticalMessage();
     void informationMessage();
     void questionMessage();
     void warningMessage();
     void errorMessage();

 private:
     QLabel *integerLabel;
     QLabel *doubleLabel;
     QLabel *itemLabel;
     QLabel *textLabel;
     QLabel *colorLabel;
     QLabel *fontLabel;
     QLabel *directoryLabel;
     QLabel *openFileNameLabel;
     QLabel *openFileNamesLabel;
     QLabel *saveFileNameLabel;
     QLabel *criticalLabel;
     QLabel *informationLabel;
     QLabel *questionLabel;
     QLabel *warningLabel;
     QLabel *errorLabel;
     QErrorMessage *errorMessageDialog;
     DialogOptionsWidget *fileDialogOptionsWidget;
     DialogOptionsWidget *colorDialogOptionsWidget;
     DialogOptionsWidget *fontDialogOptionsWidget;
     QString openFilesPath;
 };

 #endif