workbench/libs/popupmenu/pmshadow.h

   1 //
   2 // pmshadow.h
   3 //
   4 // PopupMenu Library - Shadows
   5 //
   6 // Copyright (C)2000 Henrik Isaksson <henrik@boing.nu>
   7 // All Rights Reserved.
   8 //
   9
  10 #ifndef PM_SHADOW_H
  11 #define PM_SHADOW_H
  12
  13 #ifndef PM_DLIST_H
  14 #include "pmdlist.h"
  15 #endif
  16
  17 #define MAX(a,b)        (a>b?a:b)
  18 #define MIN(a,b)        (a<b?a:b)
  19
  20 struct PMShadowRect {
  21         PMGLN           n;
  22         WORD            Left;
  23         WORD            Top;
  24         WORD            Right;
  25         WORD            Bottom;
  26 };
  27
  28 typedef struct PMShadowRect PMSR;
  29 typedef struct MinList PMSRList;
  30
  31 #define PM_InitShadowList               (PMSRList *)PM_InitList
  32 #define PM_FreeShadowList(l)            PM_FreeList((PMDList *)l)
  33 #define PM_CopyShadowList(l)            (PMSRList *)PM_CopyList((PMDList *)l)
  34 #define PM_AddShadowToList(l, A)        PM_AddToList((PMDList *)l, (PMNode *)A)
  35 #define PM_UnlinkShadow(l, A)           PM_Unlink((PMDList *)l, (PMNode *)A)
  36 #define PM_FreeShadowNode(A)            PM_FreeNode((PMNode *)A)
  37 //#define PM_CopyShadowNode(A)          (PMSR *)PM_CopyNode((PMNode *)A)
  38 /*
  39 void PM_AddShadowToList(PMSRList *l, PMSR *A);  // Add A to l. *
  40 void PM_UnlinkShadow(PMSRList *l, PMSR *A);     // Remove A from l. *
  41 void PM_FreeShadowNode(PMSR *A);                // Free a shadow node. *
  42 */
  43 PMSR *PM_CopyShadowNode(PMSR *A);               // Copy a shadow node. *
  44
  45
  46 //PMSRList *PM_InitShadowList(void);            // Create a new list header *
  47 //void PM_FreeShadowList(PMSRList *list);               // Free a list of shadow rects *
  48 //PMSRList *PM_CopyShadowList(PMSRList *list);  // Copy a list of shadow rects *
  49
  50 BOOL PM_AddRect(PMSRList *list,                 // Add a rectangle to a
  51         WORD l, WORD t, WORD r, WORD b);        // list of shadows. *
  52
  53 BOOL PM_AddShadow(PMSRList *sigma,              // Add shadows in delta to
  54                 PMSRList *delta);               // sigma, and modify shadows
  55                                                 // in delta so they will not
  56                                                 // overlap shadows in sigma. *
  57
  58 BOOL PM_SubMenuRect(PMSRList *sigma,            // Subract a rectangle from
  59         WORD l, WORD t, WORD w, WORD h);        // list. *
  60
  61
  62 //
  63 // Support functions.
  64 //
  65
  66 BOOL PM_ShadowOverlap(PMSR *A, PMSR *B);        // Does A touch B anywhere? *
  67 BOOL PM_SubRects(PMSRList *dest,                // Remove parts of worknode
  68         PMSR *worknode, PMSR *rect);            // that are overlapped by rect. *
  69
  70 #endif