diff options
Diffstat (limited to 'dw/widget.hh')
| -rw-r--r-- | dw/widget.hh | 173 |
1 files changed, 9 insertions, 164 deletions
diff --git a/dw/widget.hh b/dw/widget.hh index fde48ecc..013be27b 100644 --- a/dw/widget.hh +++ b/dw/widget.hh @@ -20,149 +20,16 @@ namespace core { * * \sa\ref dw-overview, \ref dw-layout-widgets */ -class Widget: public identity::IdentifiableObject +class Widget: public lout::identity::IdentifiableObject { friend class Layout; -public: - class EventReceiver: public lout::signal::Receiver - { - public: - virtual bool buttonPress (Widget *widget, EventButton *event); - virtual bool buttonRelease (Widget *widget, EventButton *event); - virtual bool motionNotify (Widget *widget, EventMotion *event); - virtual void enterNotify (Widget *widget, EventCrossing *event); - virtual void leaveNotify (Widget *widget, EventCrossing *event); - }; - - /** - * \brief This receiver is for signals related to HTML pages. - * - * The \em link argument to all signals defines a number, which has - * been passed before, e.g. by setting dw::core::style::Style::x_link. - * When defining this number (e.g in dw::core::style::Style::x_link), - * and when receiving the signal, the caller must interpret these numbers - * in a consistent way. In the HTML link block, this number is an index - * to an array of URLs. - * - * \em link = -1 represents an undefined link. - * - * The \em img argument to all signals defines a number which has - * been passed before, e.g. by setting dw::core::style::Style::x_img. - * When defining this number (e.g in dw::core::style::Style::x_img), - * and when receiving the signal, the caller must interpret these numbers - * in a consistent way. In the HTML link block, this number is an index - * to an array of structures containing image information. - * - * \em img = -1 represents an undefined image. - * - * \em x and \em y define the coordinates within the link area. They are - * only used for server-side image maps, see dw::Image. - * - * \sa dw::Image, dw::Textblock - */ - class LinkReceiver: public lout::signal::Receiver - { - public: - /** - * \brief Called, when a link is entered, left, or the position has - * changed. - * - * When a link is entered, this method is called with the respective - * arguments. When a link is left, this method is called with all - * three arguments (\em link, \em x, \em y) set to -1. - * - * When coordinates are supported, a change of the coordinates also - * causes emitting this signal. - */ - virtual bool enter (Widget *widget, int link, int img, int x, int y); - - /** - * \brief Called, when the user has pressed the mouse button on a - * link (but not yet released). - * - * The causing event is passed as \em event. - */ - virtual bool press (Widget *widget, int link, int img, int x, int y, - EventButton *event); - - /** - * \brief Called, when the user has released the mouse button on a - * link. - * - * The causing event is passed as \em event. - */ - virtual bool release (Widget *widget, int link, int img, int x, int y, - EventButton *event); - - /** - * \brief Called, when the user has clicked on a link. - * - * For mouse interaction, this is equivalent to "press" and "release" - * on the same link. In this case, \em event contains the "release" - * event. - * - * When activating links via keyboard is supported, only a "clicked" - * signal will be emitted, and \em event will be NULL. - */ - virtual bool click (Widget *widget, int link, int img, int x, int y, - EventButton *event); - }; - -private: - class EventEmitter: public lout::signal::Emitter - { - private: - enum { BUTTON_PRESS, BUTTON_RELEASE, MOTION_NOTIFY, ENTER_NOTIFY, - LEAVE_NOTIFY }; - - protected: - bool emitToReceiver (lout::signal::Receiver *receiver, int signalNo, - int argc, Object **argv); - - public: - inline void connectEvent (EventReceiver *receiver) - { connect (receiver); } - - bool emitButtonPress (Widget *widget, EventButton *event); - bool emitButtonRelease (Widget *widget, EventButton *event); - bool emitMotionNotify (Widget *widget, EventMotion *event); - void emitEnterNotify (Widget *widget, EventCrossing *event); - void emitLeaveNotify (Widget *widget, EventCrossing *event); - }; - - class LinkEmitter: public lout::signal::Emitter - { - private: - enum { ENTER, PRESS, RELEASE, CLICK }; - - protected: - bool emitToReceiver (lout::signal::Receiver *receiver, int signalNo, - int argc, Object **argv); - - public: - inline void connectLink (LinkReceiver *receiver) { connect (receiver); } - - bool emitEnter (Widget *widget, int link, int img, int x, int y); - bool emitPress (Widget *widget, int link, int img, int x, int y, - EventButton *event); - bool emitRelease (Widget *widget, int link, int img, int x, int y, - EventButton *event); - bool emitClick (Widget *widget, int link, int img, int x, int y, - EventButton *event); - }; - - EventEmitter eventEmitter; - - style::Style *style; - - protected: enum Flags { /** * \brief Set, when dw::core::Widget::requisition is not up to date * anymore. - */ + */ NEEDS_RESIZE = 1 << 0, /** @@ -175,7 +42,7 @@ protected: /** * \brief Set, when dw::core::Widget::extremes is not up to date * anymore. - */ + */ EXTREMES_CHANGED = 1 << 2, /** @@ -183,7 +50,7 @@ protected: * methods are implemented. * * Will hopefully be removed, after redesigning the size model. - */ + */ USES_HINTS = 1 << 3, /** @@ -191,7 +58,7 @@ protected: * some contents, e.g. an image, as opposed to a horizontal ruler. * * Will hopefully be removed, after redesigning the size model. - */ + */ HAS_CONTENTS = 1 << 4, /** @@ -207,6 +74,7 @@ private: * \brief The parent widget, NULL for top-level widgets. */ Widget *parent; + style::Style *style; Flags flags; @@ -248,7 +116,6 @@ public: int parentRef; protected: - LinkEmitter linkEmitter; /** * \brief The current allocation: size and position, always relative to the @@ -266,7 +133,7 @@ protected: inline void setFlags (Flags f) { flags = (Flags)(flags | f); } inline void unsetFlags (Flags f) { flags = (Flags)(flags & ~f); } - + inline void queueDraw () { @@ -346,7 +213,7 @@ protected: EventMotion *event, bool withinContent) { return layout->selectionState.buttonMotion (it, charPos, linkNo, event, withinContent); } - + inline bool selectionHandleEvent (SelectionState::EventType eventType, Iterator *it, int charPos, int linkNo, MousePositionEvent *event, @@ -372,28 +239,6 @@ public: inline bool needsAllocate () { return flags & NEEDS_ALLOCATE; } inline bool extremesChanged () { return flags & EXTREMES_CHANGED; } inline bool wasAllocated () { return flags & WAS_ALLOCATED; } - - inline void connectEvent (EventReceiver *receiver) - { eventEmitter.connectEvent (receiver); } - - inline void connectLink (LinkReceiver *receiver) - { linkEmitter.connectLink (receiver); } - - inline bool emitLinkEnter (int link, int img, int x, int y) - { return linkEmitter.emitEnter (this, link, img, x, y); } - - inline bool emitLinkPress (int link, int img, - int x, int y, EventButton *event) - { return linkEmitter.emitPress (this, link, img, x, y, event); } - - inline bool emitLinkRelease (int link, int img, - int x, int y, EventButton *event) - { return linkEmitter.emitRelease (this, link, img, x, y, event); } - - inline bool emitLinkClick (int link, int img, - int x, int y, EventButton *event) - { return linkEmitter.emitClick (this, link, img, x, y, event); } - inline bool usesHints () { return flags & USES_HINTS; } inline bool hasContents () { return flags & HAS_CONTENTS; } @@ -420,7 +265,7 @@ public: bool motionNotify (EventMotion *event); void enterNotify (EventCrossing *event); void leaveNotify (EventCrossing *event); - + virtual void setStyle (style::Style *style); void setBgColor (style::Color *bgColor); style::Color *getBgColor (); |