1 files changed, 174 insertions, 0 deletions
diff --git a/src/ui/TextField.h b/src/ui/TextField.h
new file mode 100644
index 00000000..1675a2e0
--- /dev/null
+++ b/src/ui/TextField.h
@@ -0,0 +1,174 @@
+#pragma once
+
+#include <QColor>
+#include <QLineEdit>
+#include <QPaintEvent>
+#include <QPropertyAnimation>
+#include <QStateMachine>
+#include <QtGlobal>
+
+class TextField;
+class TextFieldLabel;
+class TextFieldStateMachine;
+
+class TextField : public QLineEdit
+{
+        Q_OBJECT
+
+        Q_PROPERTY(QColor textColor WRITE setTextColor READ textColor)
+        Q_PROPERTY(QColor inkColor WRITE setInkColor READ inkColor)
+        Q_PROPERTY(QColor labelColor WRITE setLabelColor READ labelColor)
+        Q_PROPERTY(QColor underlineColor WRITE setUnderlineColor READ underlineColor)
+        Q_PROPERTY(QColor backgroundColor WRITE setBackgroundColor READ backgroundColor)
+
+public:
+        explicit TextField(QWidget *parent = 0);
+
+        void setInkColor(const QColor &color);
+        void setBackgroundColor(const QColor &color);
+        void setLabel(const QString &label);
+        void setLabelColor(const QColor &color);
+        void setLabelFontSize(qreal size);
+        void setShowLabel(bool value);
+        void setTextColor(const QColor &color);
+        void setUnderlineColor(const QColor &color);
+
+        QColor inkColor() const;
+        QColor labelColor() const;
+        QColor textColor() const;
+        QColor underlineColor() const;
+        QColor backgroundColor() const;
+        QString label() const;
+        bool hasLabel() const;
+        qreal labelFontSize() const;
+
+protected:
+        bool event(QEvent *event) override;
+        void paintEvent(QPaintEvent *event) override;
+
+private:
+        void init();
+
+        QColor ink_color_;
+        QColor background_color_;
+        QColor label_color_;
+        QColor text_color_;
+        QColor underline_color_;
+        QString label_text_;
+        TextFieldLabel *label_;
+        TextFieldStateMachine *state_machine_;
+        bool show_label_;
+        qreal label_font_size_;
+};
+
+class TextFieldLabel : public QWidget
+{
+        Q_OBJECT
+
+        Q_PROPERTY(qreal scale WRITE setScale READ scale)
+        Q_PROPERTY(QPointF offset WRITE setOffset READ offset)
+        Q_PROPERTY(QColor color WRITE setColor READ color)
+
+public:
+        TextFieldLabel(TextField *parent);
+
+        inline void setColor(const QColor &color);
+        inline void setOffset(const QPointF &pos);
+        inline void setScale(qreal scale);
+
+        inline QColor color() const;
+        inline QPointF offset() const;
+        inline qreal scale() const;
+
+protected:
+        void paintEvent(QPaintEvent *event) override;
+
+private:
+        TextField *const text_field_;
+
+        QColor color_;
+        qreal scale_;
+        qreal x_;
+        qreal y_;
+};
+
+inline void
+TextFieldLabel::setColor(const QColor &color)
+{
+        color_ = color;
+        update();
+}
+
+inline void
+TextFieldLabel::setOffset(const QPointF &pos)
+{
+        x_ = pos.x();
+        y_ = pos.y();
+        update();
+}
+
+inline void
+TextFieldLabel::setScale(qreal scale)
+{
+        scale_ = scale;
+        update();
+}
+
+inline QPointF
+TextFieldLabel::offset() const
+{
+        return QPointF(x_, y_);
+}
+inline qreal
+TextFieldLabel::scale() const
+{
+        return scale_;
+}
+inline QColor
+TextFieldLabel::color() const
+{
+        return color_;
+}
+
+class TextFieldStateMachine : public QStateMachine
+{
+        Q_OBJECT
+
+        Q_PROPERTY(qreal progress WRITE setProgress READ progress)
+
+public:
+        TextFieldStateMachine(TextField *parent);
+
+        inline void setProgress(qreal progress);
+        void setLabel(TextFieldLabel *label);
+
+        inline qreal progress() const;
+
+public slots:
+        void setupProperties();
+
+private:
+        QPropertyAnimation *color_anim_;
+        QPropertyAnimation *offset_anim_;
+
+        QState *focused_state_;
+        QState *normal_state_;
+
+        TextField *text_field_;
+        TextFieldLabel *label_;
+
+        qreal progress_;
+};
+
+inline void
+TextFieldStateMachine::setProgress(qreal progress)
+{
+        progress_ = progress;
+        text_field_->update();
+}
+
+inline qreal
+TextFieldStateMachine::progress() const
+{
+        return progress_;
+}