+#ifndef __lib_gui_ewidget_h
+#define __lib_gui_ewidget_h
+
+#include <lib/gdi/grc.h> /* for gRegion */
+#include <lib/base/eptrlist.h> /* for eSmartPtrList */
+#include <lib/gui/ewindowstyle.h> /* for eWindowStyle */
+#include <lib/gui/ewidgetanimation.h>
+
+#define MAX_LAYER 16
+
+class eWidgetDesktop;class eWidgetDesktop;
+
+class eWidget
+{
+ friend class eWidgetDesktop;
+public:
+ eWidget(eWidget *parent);
+ virtual ~eWidget();
+
+ void move(ePoint pos);
+ void resize(eSize size);
+
+ ePoint position() const { return m_position; }
+ eSize size() const { return m_size; }
+
+ void invalidate(const gRegion ®ion = gRegion::invalidRegion());
+
+ /* the window were to attach childs to. Normally, this
+ is "this", but it can be overridden in case a widget
+ has a "client area", which is implemented as a child
+ widget. eWindow overrides this, for example. */
+ virtual eWidget *child() { return this; }
+
+ void show();
+ void hide();
+
+ void destruct();
+
+ SWIG_VOID(int) getStyle(ePtr<eWindowStyle> &SWIG_NAMED_OUTPUT(style)) { if (!m_style) return 1; style = m_style; return 0; }
+ void setStyle(eWindowStyle *style) { m_style = style; }
+
+ void setBackgroundColor(const gRGB &col);
+ void clearBackgroundColor();
+
+ void setZPosition(int z);
+ void setTransparent(int transp);
+
+ /* untested code */
+ int isVisible() { return (m_vis & wVisShow) && ((!m_parent) || m_parent->isVisible()); }
+ /* ... */
+
+ int isTransparent() { return m_vis & wVisTransparent; }
+
+ ePoint getAbsolutePosition();
+
+ eWidgetAnimation m_animation;
+private:
+ eWidgetDesktop *m_desktop;
+
+ enum {
+ wVisShow = 1,
+ wVisTransparent = 2,
+ };
+
+ int m_vis;
+
+ int m_layer;
+
+ ePtrList<eWidget> m_childs;
+ ePoint m_position;
+ eSize m_size;
+ /* will be accounted when there's a client offset */
+ eSize m_client_offset;
+ eWidget *m_parent;
+
+ ePtr<eWindowStyle> m_style;
+
+ void insertIntoParent();
+ void doPaint(gPainter &painter, const gRegion ®ion, int layer);
+ void recalcClipRegionsWhenVisible();
+
+ void parentRemoved();
+
+ gRGB m_background_color;
+ int m_have_background_color;
+
+ eWidget *m_current_focus, *m_focus_owner;
+
+ int m_z_position;
+ int m_notify_child_on_position_change;
+protected:
+ void mayKillFocus();
+public:
+
+ // all in local space!
+ gRegion m_clip_region, m_visible_region, m_visible_with_childs;
+ struct eWidgetDesktopCompBuffer *m_comp_buffer[MAX_LAYER];
+
+ enum eWidgetEvent
+ {
+ evtPaint,
+ evtKey,
+ evtChangedPosition,
+ evtChangedSize,
+
+ evtParentChangedPosition,
+
+ evtParentVisibilityChanged,
+ evtWillChangePosition, /* new size is eRect *data */
+ evtWillChangeSize,
+
+ evtAction,
+
+ evtFocusGot,
+ evtFocusLost,
+
+ evtUserWidget,
+ };
+ virtual int event(int event, void *data = 0, void *data2 = 0);
+ void setFocus(eWidget *focus);
+
+ /* enable this if you need the absolute position of the widget */
+ void setPositionNotifyChild(int n) { m_notify_child_on_position_change = 1; }
+
+ void notifyShowHide();
+};
+
+extern eWidgetDesktop *getDesktop(int which);
+
+#endif