| 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 |