mdw@git.distorted.org.uk Git - ssr/blob - StraySrc/Libraries/Sapphire/csapph/h/drag

   1 /*
   2  * drag.h
   3  *
   4  * [Generated from drag, 25 September 1996]
   5  */
   6
   7 #if !defined(__CC_NORCROFT) || !defined(__arm)
   8   #error You must use the Norcroft ARM Compiler for Sapphire programs
   9 #endif
  10
  11 #pragma include_only_once
  12 #pragma force_top_level
  13
  14 #ifndef __drag_h
  15 #define __drag_h
  16
  17 #ifndef __sapphire_h
  18   #include "sapphire.h"
  19 #endif
  20
  21 /*----- Overview ----------------------------------------------------------*
  22  *
  23  * Functions provided:
  24  *
  25  *  drag_start
  26  *  drag_scroll
  27  *  drag_setDash
  28  *  drag_cancel
  29  *  drag_redraw
  30  *  drag_eorColour
  31  */
  32
  33 /* --- drag_start --- *
  34  *
  35  * On entry:    R0 == window containing the drag
  36  *              R1 == flags word (see flags below)
  37  *              R2 == pointer to drag routine
  38  *              R3 == magic number to pass in R9
  39  *              R4 == value to pass to routine in R10
  40  *              R5 == value to pass to routine in R12
  41  *
  42  * On exit:     --
  43  *
  44  * Use:         Starts a drag operation.  Any outstanding drag operation
  45  *              is cancelled on the assumption that someone stole our
  46  *              UserDragBox event.
  47  */
  48
  49 extern routine drag_start;
  50
  51 /* --- drag_scroll --- *
  52  *
  53  * On entry:    R1 == pointer to window state block
  54  *
  55  * On exit:     R2,R3 == new scroll positions to set
  56  *              R14 == R1+20 (pointer to scroll offsets)
  57  *
  58  * Use:         Works out the scroll positions which should be set to auto-
  59  *              scroll the window.  The algorithm is simple: the window is
  60  *              scrolled so that the point beneath the mouse pointer is
  61  *              within the window's visible work area.
  62  */
  63
  64 extern routine drag_scroll;
  65
  66 /* --- drag_setDash --- *
  67  *
  68  * On entry:    R0 == dash pattern byte
  69  *
  70  * On exit:     --
  71  *
  72  * Use:         Sets the dash pattern to be the given value.
  73  */
  74
  75 extern routine drag_setDash;
  76
  77 /* --- drag_cancel --- *
  78  *
  79  * On entry:    --
  80  *
  81  * On exit:     --
  82  *
  83  * Use:         Cancels the current drag operation.
  84  */
  85
  86 extern routine drag_cancel;
  87
  88 /* --- drag_redraw --- *
  89  *
  90  * On entry:    R1 == pointer to redraw block
  91  *
  92  * On exit:     --
  93  *
  94  * Use:         Redraws the drag box, if the redraw takes place in the
  95  *              currently dragging window.
  96  */
  97
  98 extern routine drag_redraw;
  99
 100 /* --- drag_eorColour --- *
 101  *
 102  * On entry:    R0 == colour A
 103  *              R1 == colour B
 104  *
 105  * On exit:     --
 106  *
 107  * Use:         Sets the foreground colour to be an EOR colour such that
 108  *              when painted over Wimp colour A, it appears as Wimp colour B.
 109  */
 110
 111 extern routine drag_eorColour;
 112
 113 /*----- Flags -------------------------------------------------------------*/
 114
 115 #define drFlag_noUpdate ((1<<0))
 116
 117 /*----- Drag handler events -----------------------------------------------*/
 118
 119 /* --- Note --- *
 120  *
 121  * The events which request that you draw something are called for each
 122  * rectangle of the draw operation -- i.e. do not call Wimp_GetRectangle
 123  * because this is done for you.
 124  */
 125
 126 #define drEvent_draw 0
 127
 128 #define drEvent_undraw 1
 129
 130 #define drEvent_update 2
 131
 132 #define drEvent_trans 3
 133
 134 #define drEvent_getPos 4
 135
 136 #define drEvent_done 5
 137
 138 #define drEvent_cancel 6
 139
 140 /*----- That's all, folks -------------------------------------------------*/
 141
 142 #endif