#ifndef APP_GraphicObject_H #define APP_GraphicObject_H /****************************************************************************** ** ** C++ Class Library for the Amiga© system software. ** ** Copyright (C) 1994 by Armin Vogt ** EMail: armin@uni-paderborn.de ** All Rights Reserved. ** ** $VER: apphome:APlusPlus/graphics/GraphicObject.h 1.10 (27.07.94) $ ** ******************************************************************************/ extern "C" { #include #include } #include #include #define GOB_OWNER GraphicObject *gob_owner class GWindow; /****************************************************************************************** » GraphicObject class « virtual base class This class enhances the IntuiObject class to handle all objects within a GUI that have any kind of graphical dimensions (Windows, Gadgets etc.). GraphicObjects can incorporate other GraphicObjects which have a common GraphicObject as owner. These depending GraphicObjects are placed within their owner relative to the owners dimensions. A GraphicObject itself can be used to group several GraphicObject-derived objects. ******************************************************************************************/ class GraphicObject : public IntuiObject, virtual public RectObject { public: virtual APTR redrawSelf(GWindow* home,ULONG& returnType); /** redrawSelf() is called each time the home window has changed size. ** To have the GraphicObjects redraw themselves after they have been ** adjusted to the new size (i.e. left(),top(),width() and height() are already set.) ** GadgetCV derived classes have to return their incorporated gadget ** structure/list to have it attached to the window. **/ ULONG setAttributes(AttrList& attrs); ULONG getAttribute(Tag,ULONG&); // runtime type inquiry support static const Intui_Type_info info_obj; virtual const Type_info& get_info() const // get the 'type_id' to an existing object { return info_obj; } static const Type_info& info() // get the 'type_id' of a specific class { return info_obj; } virtual void adjustChilds(); // adjust dimensions of the child GraphicObjects protected: GraphicObject(GOB_OWNER,AttrList& attrs); ~GraphicObject(); }; #define GOB_Spec_Dummy (TAG_USER | GRAPHICOBJECT) #define gob_edge 8 #define gob_reledge 4 #define gob_orient 2 #define gob_relative 1 #define gob_spec(edge,reledge,orient,relative) (gob_edge*edge+gob_reledge*reledge+gob_orient*orient+gob_relative*relative) #define GOB_LeftFromLeftOfParent (GOB_Spec_Dummy + gob_spec(0,0,0,0)) #define GOB_RightFromLeftOfParent (GOB_Spec_Dummy + gob_spec(1,0,0,0)) #define GOB_TopFromTopOfParent (GOB_Spec_Dummy + gob_spec(0,0,1,0)) #define GOB_BottomFromTopOfParent (GOB_Spec_Dummy + gob_spec(1,0,1,0)) #define GOB_LeftFromRightOfParent (GOB_Spec_Dummy + gob_spec(0,1,0,0)) #define GOB_RightFromRightOfParent (GOB_Spec_Dummy + gob_spec(1,1,0,0)) #define GOB_TopFromBottomOfParent (GOB_Spec_Dummy + gob_spec(0,1,1,0)) #define GOB_BottomFromBottomOfParent (GOB_Spec_Dummy + gob_spec(1,1,1,0)) #define GOB_LeftFromLeftOfPred (GOB_Spec_Dummy + gob_spec(0,0,0,1)) #define GOB_RightFromLeftOfPred (GOB_Spec_Dummy + gob_spec(1,0,0,1)) #define GOB_TopFromTopOfPred (GOB_Spec_Dummy + gob_spec(0,0,1,1)) #define GOB_BottomFromTopOfPred (GOB_Spec_Dummy + gob_spec(1,0,1,1)) #define GOB_LeftFromRightOfPred (GOB_Spec_Dummy + gob_spec(0,1,0,1)) #define GOB_RightFromRightOfPred (GOB_Spec_Dummy + gob_spec(1,1,0,1)) #define GOB_TopFromBottomOfPred (GOB_Spec_Dummy + gob_spec(0,1,1,1)) #define GOB_BottomFromBottomOfPred (GOB_Spec_Dummy + gob_spec(1,1,1,1)) #define GOB_Dummy (GOB_Spec_Dummy + 16) #define GOB_Left GOB_LeftFromLeftOfParent #define GOB_Top GOB_TopFromTopOfParent #define GOB_Right GOB_RightFromLeftOfParent #define GOB_Bottom GOB_BottomFromTopOfParent #define GOB_Width (GOB_Dummy + 1) #define GOB_Height (GOB_Dummy + 2) /** GOB_Width and GOB_Height tags can be used to define a GraphicObject ** having constant dimensions. When using one of these tags only one ** additional edge needs to be specified while the opposite edge is ** placed in the given distance (width or height) to the one specified. **/ #define BDR_Dummy (GOB_Dummy + 64) //#define GOB_Percent(frac) ( ( ((ULONG)0xffff)*frac ) ) /** GOB_Percent computes a fraction that relates the dimension of a GraphicObject to ** the same dimension of the owner. Proportional dimensions can be used with all GOB_ tags. ** They are recognized by their sign: negative values are considered percentual values while ** positive values are taken as absolute distances in pixel. ** For instance, set a gadget a third of the windows width and 2/3 of this width ** from the left egde: ** ** GraphicObject(window, GOB_Left,GOB_Percent(2/3),GOB_Width,GOB_Percent(1/3) ** ** Make sure that the denominator (here '2' of '2/3') is smaller than 65535 to prevent an ** integer overflow! **/ // Percent & Absolute do not work at the moment!!!!!!!!!!!!!!!!!!!!!!!!!!!! #define GOB_Absolute(related,value) ((XYVAL)value) /*( ((LONG)(value)) > 0xffff ? \ ( ( ((ULONG)(related)) * ( ((LONG)(value))-0xffff ) ) / 0x0000ffff) : value ) */ /** GOB_Absolute gives the absolute value of a GOB_Percent tag data. ** It determines if the value given is meant to be absolute or percentual. For percentual ** values, which have to be defined with GOB_Percent(), it computes the fraction of the related ** length and returns an absolute value. **/ #define GOB_Border (GOB_Dummy + 3) #define GOB_BorderObj(borderobj) GOB_Border,GBorder::confirm(borderobj) /* GOB_Border allows the class user to specify a Border object that draws some kind * of border around the GraphicObject. Use the GOB_BorderObj(Border* borderkind) macro * rather than the GOB_Border tag since the first assures type checking. */ #endif /* GraphicObject.h */