mirror of
https://github.com/ptitSeb/Serious-Engine
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84 lines
3.0 KiB
C
84 lines
3.0 KiB
C
/*
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* LWSDK Header File
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* Copyright 2001, NewTek, Inc.
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*
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* LWLAYTOOL.H -- Layout Interactive Tools
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*/
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#ifndef LWSDK_LAYTOOL_H
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#define LWSDK_LAYTOOL_H
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#include <lwtool.h>
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#include <lwcustobj.h>
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#define LWLAYOUTTOOL_CLASS "LayoutTool"
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#define LWLAYOUTTOOL_VERSION 1
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/*
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* A Layout tool is a LightWave viewport tool whose draw() function
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* takes a LWCustomObjAccess instead of a LWWireDrawAccess structure.
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* It has the following handler functions.
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*
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* done destroy the instance when the user discards the tool.
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*
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* draw display a wireframe representation of the tool in a 3D
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* viewport. Typically this draws the handles.
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*
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* help return a text string to be displayed as a help tip for
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* this tool.
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*
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* dirty return flag bit if either the wireframe or help string
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* need to be refreshed.
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*
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* count return the number of handles. If zero, then 'start' is
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* used to set the initial handle point.
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*
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* handle return the 3D location and priority of handle 'i', or zero
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* if the handle is currently invalid.
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*
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* start take an initial mouse-down position and return the index
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* of the handle that should be dragged.
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*
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* adjust drag the given handle to a new location and return the
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* index of the handle that should continue being dragged
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* (often the same as the input).
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*
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* down process a mouse-down event. If this function returns
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* false, handle processing will be done instead of raw
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* mouse event processing.
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*
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* move process a mouse-move event. This is only called if the
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* down function returned true.
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*
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* up process a mouse-up event. This is only called if the down
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* function returned true.
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*
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* event process a general event: DROP, RESET or ACTIVATE
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*
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* panel create and return a view-type xPanel for the tool instance.
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*/
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typedef struct st_LWLayoutToolFuncs {
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void (*done) (LWInstance);
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void (*draw) (LWInstance, LWCustomObjAccess *);
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const char * (*help) (LWInstance, LWToolEvent *);
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int (*dirty) (LWInstance);
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int (*count) (LWInstance, LWToolEvent *);
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int (*handle) (LWInstance, LWToolEvent *, int i, LWDVector pos);
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int (*start) (LWInstance, LWToolEvent *);
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int (*adjust) (LWInstance, LWToolEvent *, int i);
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int (*down) (LWInstance, LWToolEvent *);
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void (*move) (LWInstance, LWToolEvent *);
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void (*up) (LWInstance, LWToolEvent *);
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void (*event) (LWInstance, int code);
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LWXPanelID (*panel) (LWInstance);
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} LWLayoutToolFuncs;
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typedef struct st_LWLayoutTool {
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LWInstance instance;
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LWLayoutToolFuncs *tool;
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} LWLayoutTool;
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#endif
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