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34 #ifndef BASEVALIDATINGLINEEDIT_H
35 #define BASEVALIDATINGLINEEDIT_H
37 #include "utils_global.h"
39 #include <QtGui/QLineEdit>
43 struct BaseValidatingLineEditPrivate;
46 * Base class for validating line edits that performs validation in a virtual
47 * validate() function to be implemented in derived classes.
48 * When invalid, the text color will turn red and a tooltip will
49 * contain the error message. This approach is less intrusive than a
50 * QValidator which will prevent the user from entering certain characters.
52 * The widget has a concept of an "initialText" which can be something like
53 * "<Enter name here>". This results in state 'DisplayingInitialText', which
54 * is not valid, but is not marked red.
56 class QTCREATOR_UTILS_EXPORT BaseValidatingLineEdit : public QLineEdit
59 Q_DISABLE_COPY(BaseValidatingLineEdit)
60 Q_PROPERTY(QString initialText READ initialText WRITE setInitialText DESIGNABLE true)
61 Q_PROPERTY(QColor errorColor READ errorColor WRITE setErrorColor DESIGNABLE true)
64 enum State { Invalid, DisplayingInitialText, Valid };
66 explicit BaseValidatingLineEdit(QWidget *parent = 0);
67 virtual ~BaseValidatingLineEdit();
72 QString errorMessage() const;
74 QString initialText() const;
75 void setInitialText(const QString &);
77 QColor errorColor() const;
78 void setErrorColor(const QColor &);
80 // Trigger an update (after changing settings)
81 void triggerChanged();
83 static QColor textColor(const QWidget *w);
84 static void setTextColor(QWidget *w, const QColor &c);
88 void validChanged(bool validState);
89 void validReturnPressed();
92 virtual bool validate(const QString &value, QString *errorMessage) const = 0;
95 // Custom behaviour can be added here. The base implementation must
97 virtual void slotReturnPressed();
98 virtual void slotChanged(const QString &t);
101 BaseValidatingLineEditPrivate *m_bd;
106 #endif // BASEVALIDATINGLINEEDIT_H