v1.4.4

source/windowing/StarButtonWidget.hpp

@@ -0,0 +1,138 @@
+#ifndef STAR_BUTTON_WIDGET_HPP
+#define STAR_BUTTON_WIDGET_HPP
+
+#include "StarButtonGroup.hpp"
+
+namespace Star {
+
+STAR_CLASS(ButtonWidget);
+
+class ButtonWidget : public Widget {
+public:
+  ButtonWidget();
+  ButtonWidget(WidgetCallbackFunc callback,
+      String const& baseImage,
+      String const& hoverImage = "",
+      String const& pressedImage = "",
+      String const& disabledImage = "");
+  virtual ~ButtonWidget();
+
+  virtual bool sendEvent(InputEvent const& event) override;
+  virtual void mouseOver() override;
+  virtual void mouseOut() override;
+  virtual void mouseReturnStillDown() override;
+  virtual void hide() override;
+
+  // Callback is called when the checked / pressed state is changed.
+  void setCallback(WidgetCallbackFunc callback);
+
+  ButtonGroupPtr buttonGroup() const;
+  // Sets the button group for this widget, and adds it to the button group if
+  // it is not already added.  Additionally, sets the button as checkable.
+  void setButtonGroup(ButtonGroupPtr buttonGroup, int id = ButtonGroup::NoButton);
+  // If a button group is set, returns this button's id in the button group.
+  int buttonGroupId();
+
+  bool isHovered() const;
+
+  bool isPressed() const;
+  void setPressed(bool pressed);
+
+  bool isCheckable() const;
+  void setCheckable(bool checkable);
+
+  bool isHighlighted() const;
+  void setHighlighted(bool highlighted);
+
+  bool isChecked() const;
+  void setChecked(bool checked);
+  // Either checks a button, or toggles the state, depending on whether the
+  // button is part of an exclusive group or not.
+  void check();
+
+  bool sustainCallbackOnDownHold();
+  void setSustainCallbackOnDownHold(bool sustain);
+
+  void setImages(String const& baseImage,
+      String const& hoverImage = "",
+      String const& pressedImage = "",
+      String const& disabledImage = "");
+  void setCheckedImages(String const& baseImage,
+      String const& hoverImage = "",
+      String const& pressedImage = "",
+      String const& disabledImage = "");
+  void setOverlayImage(String const& overlayImage = "");
+
+  // Used to offset drawing when the button is being pressed / checked
+  Vec2I const& pressedOffset() const;
+  void setPressedOffset(Vec2I const& offset);
+
+  virtual void setText(String const& text);
+  virtual void setFontSize(int size);
+  virtual void setTextOffset(Vec2I textOffset);
+
+  void setTextAlign(HorizontalAnchor hAnchor);
+  void setFontColor(Color color);
+  void setFontColorDisabled(Color color);
+  void setFontColorChecked(Color color);
+
+  virtual WidgetPtr getChildAt(Vec2I const& pos) override;
+
+  void disable();
+  void enable();
+  void setEnabled(bool enabled);
+
+  void setInvisible(bool invisible);
+
+protected:
+  virtual RectI getScissorRect() const override;
+  virtual void renderImpl() override;
+
+  void drawButtonPart(String const& image, Vec2F const& position);
+  void updateSize();
+
+  WidgetCallbackFunc m_callback;
+  ButtonGroupPtr m_buttonGroup;
+
+  bool m_hovered;
+  bool m_pressed;
+  bool m_checkable;
+  bool m_checked;
+
+  bool m_disabled;
+  bool m_highlighted;
+
+  String m_baseImage;
+  String m_hoverImage;
+  String m_pressedImage;
+  String m_disabledImage;
+
+  bool m_hasCheckedImages;
+  String m_baseImageChecked;
+  String m_hoverImageChecked;
+  String m_pressedImageChecked;
+  String m_disabledImageChecked;
+
+  String m_overlayImage;
+
+  bool m_invisible;
+
+  Vec2I m_pressedOffset;
+  Vec2U m_buttonBoundSize;
+
+  int m_fontSize;
+  String m_text;
+  Vec2I m_textOffset;
+
+  bool m_sustain;
+
+private:
+  HorizontalAnchor m_hTextAnchor;
+  Color m_fontColor;
+  Color m_fontColorDisabled;
+  Maybe<Color> m_fontColorChecked;
+};
+
+}
+
+#endif