diff options
Diffstat (limited to 'dw/layout.hh')
| -rw-r--r-- | dw/layout.hh | 141 |
1 files changed, 124 insertions, 17 deletions
diff --git a/dw/layout.hh b/dw/layout.hh index 13b8f312..304cf166 100644 --- a/dw/layout.hh +++ b/dw/layout.hh @@ -13,7 +13,7 @@ namespace core { * * \sa\ref dw-overview, \ref dw-layout-widgets, \ref dw-layout-views */ -class Layout: public object::Object +class Layout: public lout::object::Object { friend class Widget; @@ -29,6 +29,78 @@ public: virtual void canvasSizeChanged (int width, int ascent, int descent); }; + 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); + }; + + class LinkEmitter: public lout::signal::Emitter + { + private: + enum { ENTER, PRESS, RELEASE, CLICK }; + + protected: + bool emitToReceiver (lout::signal::Receiver *receiver, int signalNo, + int argc, lout::object::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); + }; + + LinkEmitter linkEmitter; + private: class Emitter: public lout::signal::Emitter { @@ -37,7 +109,7 @@ private: protected: bool emitToReceiver (lout::signal::Receiver *receiver, int signalNo, - int argc, Object **argv); + int argc, lout::object::Object **argv); public: inline void connectLayout (Receiver *receiver) { connect (receiver); } @@ -47,7 +119,7 @@ private: Emitter emitter; - class Anchor: public object::Object + class Anchor: public lout::object::Object { public: char *name; @@ -58,10 +130,10 @@ private: }; Platform *platform; - container::typed::List <View> *views; + View *view; Widget *topLevel, *widgetAtPoint; - /* The state, which must be projected into the views. */ + /* The state, which must be projected into the view. */ style::Color *bgColor; style::Cursor cursor; int canvasWidth, canvasAscent, canvasDescent; @@ -70,7 +142,7 @@ private: int scrollX, scrollY, viewportWidth, viewportHeight; bool canvasHeightGreater; int hScrollbarThickness, vScrollbarThickness; - + HPosition scrollTargetHpos; VPosition scrollTargetVpos; int scrollTargetX, scrollTargetY, scrollTargetWidth, scrollTargetHeight; @@ -80,7 +152,7 @@ private: bool scrollIdleNotInterrupted; /* Anchors of the widget tree */ - container::typed::HashTable <object::String, Anchor> *anchorsTable; + lout::container::typed::HashTable <lout::object::String, Anchor> *anchorsTable; SelectionState selectionState; FindtextState findtextState; @@ -136,13 +208,31 @@ private: int ex, int ey, int ewidth, int eheight); void queueResize (); void removeWidget (); - + public: Layout (Platform *platform); ~Layout (); - misc::ZoneAllocator *textZone; - + inline void connectLink (LinkReceiver *receiver) + { linkEmitter.connectLink (receiver); } + + inline bool emitLinkEnter (Widget *w, int link, int img, int x, int y) + { return linkEmitter.emitEnter (w, link, img, x, y); } + + inline bool emitLinkPress (Widget *w, int link, int img, + int x, int y, EventButton *event) + { return linkEmitter.emitPress (w, link, img, x, y, event); } + + inline bool emitLinkRelease (Widget *w, int link, int img, + int x, int y, EventButton *event) + { return linkEmitter.emitRelease (w, link, img, x, y, event); } + + inline bool emitLinkClick (Widget *w, int link, int img, + int x, int y, EventButton *event) + { return linkEmitter.emitClick (w, link, img, x, y, event); } + + lout::misc::ZoneAllocator *textZone; + void addWidget (Widget *widget); void setWidget (Widget *widget); @@ -159,6 +249,7 @@ public: void scrollTo (HPosition hpos, VPosition vpos, int x, int y, int width, int height); + void scroll (ScrollCommand); void setAnchor (const char *anchor); /* View */ @@ -168,7 +259,7 @@ public: /** * \brief This function is called by a view, to delegate a button press * event. - * + * * \em numPressed is 1 for simple presses, 2 for double presses etc. (more * that 2 is never needed), \em x and \em y the world coordinates, and * \em button the number of the button pressed. @@ -216,19 +307,34 @@ public: return platform->prevGlyph (text, idx); } + inline float dpiX () + { + return platform->dpiX (); + } + + inline float dpiY () + { + return platform->dpiY (); + } + inline style::Font *createFont (style::FontAttrs *attrs, bool tryEverything) { return platform->createFont (attrs, tryEverything); } - inline style::Color *createSimpleColor (int color) + inline bool fontExists (const char *name) + { + return platform->fontExists (name); + } + + inline style::Color *createColor (int color) { - return platform->createSimpleColor (color); + return platform->createColor (color); } - inline style::Color *createShadedColor (int color) + inline style::Tooltip *createTooltip (const char *text) { - return platform->createShadedColor (color); + return platform->createTooltip (text); } inline Imgbuf *createImgbuf (Imgbuf::Type type, int width, int height) @@ -250,8 +356,9 @@ public: emitter.connectLayout (receiver); } /** \brief See dw::core::FindtextState::search. */ - inline FindtextState::Result search (const char *str, bool caseSens) - { return findtextState.search (str, caseSens); } + inline FindtextState::Result search (const char *str, bool caseSens, + int backwards) + { return findtextState.search (str, caseSens, backwards); } /** \brief See dw::core::FindtextState::resetSearch. */ inline void resetSearch () { findtextState.resetSearch (); } |