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| 1 | pmbaty | 1 | /* |
| 2 | * Portions of this file are copyright Rebirth contributors and licensed as |
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| 3 | * described in COPYING.txt. |
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| 4 | * Portions of this file are copyright Parallax Software and licensed |
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| 5 | * according to the Parallax license below. |
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| 6 | * See COPYING.txt for license details. |
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| 7 | |||
| 8 | THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX |
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| 9 | SOFTWARE CORPORATION ("PARALLAX"). PARALLAX, IN DISTRIBUTING THE CODE TO |
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| 10 | END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A |
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| 11 | ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS |
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| 12 | IN USING, DISPLAYING, AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS |
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| 13 | SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE |
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| 14 | FREE PURPOSES. IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE |
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| 15 | CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES. THE END-USER UNDERSTANDS |
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| 16 | AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE. |
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| 17 | COPYRIGHT 1993-1999 PARALLAX SOFTWARE CORPORATION. ALL RIGHTS RESERVED. |
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| 18 | */ |
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| 19 | |||
| 20 | #include <stdexcept> |
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| 21 | #include <stdio.h> |
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| 22 | #include <stdlib.h> |
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| 23 | |||
| 24 | #include "u_mem.h" |
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| 25 | #include "maths.h" |
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| 26 | #include "pstypes.h" |
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| 27 | #include "gr.h" |
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| 28 | #include "ui.h" |
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| 29 | #include "event.h" |
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| 30 | #include "mouse.h" |
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| 31 | #include "window.h" |
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| 32 | #include "dxxerror.h" |
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| 33 | |||
| 34 | #include "key.h" |
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| 35 | |||
| 36 | namespace dcx { |
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| 37 | |||
| 38 | UI_GADGET * selected_gadget; |
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| 39 | |||
| 40 | constexpr std::integral_constant<uint8_t, 1> UI_GADGET_BUTTON::s_kind; |
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| 41 | constexpr std::integral_constant<uint8_t, 2> UI_GADGET_LISTBOX::s_kind; |
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| 42 | constexpr std::integral_constant<uint8_t, 3> UI_GADGET_SCROLLBAR::s_kind; |
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| 43 | constexpr std::integral_constant<uint8_t, 4> UI_GADGET_RADIO::s_kind; |
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| 44 | constexpr std::integral_constant<uint8_t, 5> UI_GADGET_CHECKBOX::s_kind; |
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| 45 | constexpr std::integral_constant<uint8_t, 6> UI_GADGET_INPUTBOX::s_kind; |
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| 46 | constexpr std::integral_constant<uint8_t, 7> UI_GADGET_USERBOX::s_kind; |
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| 47 | constexpr std::integral_constant<uint8_t, 9> UI_GADGET_ICON::s_kind; |
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| 48 | |||
| 49 | namespace { |
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| 50 | |||
| 51 | struct event_gadget : d_event |
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| 52 | { |
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| 53 | UI_GADGET *const gadget; |
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| 54 | constexpr event_gadget(const event_type t, UI_GADGET *const g) : |
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| 55 | d_event(t), gadget(g) |
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| 56 | { |
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| 57 | } |
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| 58 | }; |
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| 59 | |||
| 60 | } |
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| 61 | |||
| 62 | void ui_gadget_add(UI_DIALOG * dlg, short x1, short y1, short x2, short y2, UI_GADGET *gadget) |
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| 63 | { |
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| 64 | if (dlg->gadget == NULL ) |
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| 65 | { |
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| 66 | dlg->gadget = gadget; |
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| 67 | gadget->prev = gadget; |
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| 68 | gadget->next = gadget; |
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| 69 | } else { |
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| 70 | dlg->gadget->prev->next = gadget; |
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| 71 | gadget->next = dlg->gadget; |
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| 72 | gadget->prev = dlg->gadget->prev; |
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| 73 | dlg->gadget->prev = gadget; |
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| 74 | } |
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| 75 | |||
| 76 | gadget->when_tab = NULL; |
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| 77 | gadget->when_btab = NULL; |
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| 78 | gadget->when_up = NULL; |
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| 79 | gadget->when_down = NULL; |
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| 80 | gadget->when_left = NULL; |
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| 81 | gadget->when_right = NULL; |
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| 82 | gadget->status = 1; |
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| 83 | gadget->oldstatus = 0; |
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| 84 | if ( x1==0 && x2==0 && y1==0 && y2== 0 ) |
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| 85 | gadget->canvas.reset(); |
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| 86 | else |
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| 87 | gadget->canvas = gr_create_sub_canvas(window_get_canvas(*ui_dialog_get_window(dlg)), x1, y1, x2-x1+1, y2-y1+1); |
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| 88 | gadget->x1 = gadget->canvas->cv_bitmap.bm_x; |
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| 89 | gadget->y1 = gadget->canvas->cv_bitmap.bm_y; |
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| 90 | gadget->x2 = gadget->canvas->cv_bitmap.bm_x+x2-x1+1; |
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| 91 | gadget->y2 = gadget->canvas->cv_bitmap.bm_y+y2-y1+1; |
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| 92 | gadget->parent = NULL; |
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| 93 | gadget->hotkey = -1; |
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| 94 | } |
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| 95 | |||
| 96 | |||
| 97 | #if 0 |
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| 98 | int is_under_another_window( UI_DIALOG * dlg, UI_GADGET * gadget ) |
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| 99 | { |
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| 100 | UI_DIALOG * temp; |
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| 101 | |||
| 102 | temp = dlg->next; |
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| 103 | |||
| 104 | while( temp != NULL ) { |
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| 105 | if ( ( gadget->x1 > temp->x) && |
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| 106 | ( gadget->x1 < (temp->x+temp->width) ) && |
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| 107 | ( gadget->y1 > temp->y) && |
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| 108 | ( gadget->y1 < (temp->y+temp->height) ) |
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| 109 | ) |
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| 110 | { |
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| 111 | //gadget->status =1; |
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| 112 | return 1; |
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| 113 | } |
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| 114 | |||
| 115 | |||
| 116 | if ( ( gadget->x2 > temp->x) && |
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| 117 | ( gadget->x2 < (temp->x+temp->width) ) && |
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| 118 | ( gadget->y2 > temp->y) && |
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| 119 | ( gadget->y2 < (temp->y+temp->height) ) |
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| 120 | ) |
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| 121 | { |
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| 122 | //gadget->status =1; |
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| 123 | return 1; |
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| 124 | } |
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| 125 | |||
| 126 | |||
| 127 | temp = temp->next; |
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| 128 | } |
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| 129 | return 0; |
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| 130 | } |
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| 131 | #endif |
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| 132 | |||
| 133 | |||
| 134 | int ui_mouse_on_gadget( UI_GADGET * gadget ) |
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| 135 | { |
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| 136 | int x, y, z; |
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| 137 | |||
| 138 | mouse_get_pos(&x, &y, &z); |
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| 139 | if ((x >= gadget->x1) && (x <= gadget->x2-1) && (y >= gadget->y1) && (y <= gadget->y2-1) ) |
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| 140 | { |
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| 141 | #if 0 // check is no longer required - if it is under another window, that dialog's handler would have returned 1 |
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| 142 | if (is_under_another_window(dlg, gadget)) |
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| 143 | return 0; |
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| 144 | #endif |
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| 145 | return 1; |
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| 146 | } else |
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| 147 | return 0; |
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| 148 | } |
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| 149 | |||
| 150 | static window_event_result ui_gadget_do(UI_DIALOG *dlg, UI_GADGET *g,const d_event &event) |
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| 151 | { |
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| 152 | switch( g->kind ) |
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| 153 | { |
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| 154 | case UI_GADGET_BUTTON::s_kind: |
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| 155 | return ui_button_do(dlg, static_cast<UI_GADGET_BUTTON *>(g), event); |
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| 156 | case UI_GADGET_LISTBOX::s_kind: |
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| 157 | return ui_listbox_do(dlg, static_cast<UI_GADGET_LISTBOX *>(g), event); |
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| 158 | case UI_GADGET_SCROLLBAR::s_kind: |
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| 159 | return ui_scrollbar_do(dlg, static_cast<UI_GADGET_SCROLLBAR *>(g), event); |
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| 160 | case UI_GADGET_RADIO::s_kind: |
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| 161 | return ui_radio_do(dlg, static_cast<UI_GADGET_RADIO *>(g), event); |
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| 162 | case UI_GADGET_CHECKBOX::s_kind: |
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| 163 | return ui_checkbox_do(dlg, static_cast<UI_GADGET_CHECKBOX *>(g), event); |
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| 164 | case UI_GADGET_INPUTBOX::s_kind: |
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| 165 | return ui_inputbox_do(dlg, static_cast<UI_GADGET_INPUTBOX *>(g), event); |
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| 166 | case UI_GADGET_USERBOX::s_kind: |
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| 167 | return ui_userbox_do(dlg, static_cast<UI_GADGET_USERBOX *>(g), event); |
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| 168 | case UI_GADGET_ICON::s_kind: |
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| 169 | return ui_icon_do(dlg, static_cast<UI_GADGET_ICON *>(g), event); |
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| 170 | } |
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| 171 | return window_event_result::ignored; |
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| 172 | } |
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| 173 | |||
| 174 | window_event_result ui_gadget_send_event(UI_DIALOG *dlg, event_type type, UI_GADGET *gadget) |
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| 175 | { |
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| 176 | const event_gadget event{type, gadget}; |
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| 177 | |||
| 178 | if (gadget->parent) |
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| 179 | return ui_gadget_do(dlg, gadget->parent, event); |
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| 180 | |||
| 181 | return window_send_event(*ui_dialog_get_window(dlg), event); |
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| 182 | } |
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| 183 | |||
| 184 | UI_GADGET *ui_event_get_gadget(const d_event &event) |
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| 185 | { |
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| 186 | auto &e = static_cast<const event_gadget &>(event); |
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| 187 | Assert(e.type >= EVENT_UI_GADGET_PRESSED); // Any UI event |
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| 188 | return e.gadget; |
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| 189 | } |
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| 190 | |||
| 191 | window_event_result ui_dialog_do_gadgets(UI_DIALOG * dlg,const d_event &event) |
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| 192 | { |
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| 193 | int keypress = 0; |
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| 194 | UI_GADGET * tmp, * tmp1; |
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| 195 | |||
| 196 | if (event.type == EVENT_KEY_COMMAND) |
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| 197 | keypress = event_key_get(event); |
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| 198 | |||
| 199 | tmp = dlg->gadget; |
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| 200 | |||
| 201 | if (tmp == NULL) return window_event_result::ignored; |
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| 202 | |||
| 203 | if (selected_gadget==NULL) |
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| 204 | selected_gadget = tmp; |
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| 205 | |||
| 206 | tmp1 = dlg->keyboard_focus_gadget; |
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| 207 | |||
| 208 | do |
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| 209 | { |
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| 210 | if (ui_mouse_on_gadget(tmp) && B1_JUST_PRESSED ) |
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| 211 | { |
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| 212 | selected_gadget = tmp; |
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| 213 | if (tmp->parent!=NULL) |
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| 214 | { |
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| 215 | while (tmp->parent != NULL ) |
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| 216 | tmp = tmp->parent; |
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| 217 | dlg->keyboard_focus_gadget = tmp; |
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| 218 | break; |
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| 219 | } |
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| 220 | else |
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| 221 | { |
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| 222 | dlg->keyboard_focus_gadget = tmp; |
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| 223 | break; |
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| 224 | } |
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| 225 | } |
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| 226 | if ( tmp->hotkey == keypress ) |
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| 227 | { |
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| 228 | dlg->keyboard_focus_gadget = tmp; |
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| 229 | break; |
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| 230 | } |
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| 231 | tmp = tmp->next; |
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| 232 | } while( tmp != dlg->gadget ); |
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| 233 | |||
| 234 | if (dlg->keyboard_focus_gadget != NULL) |
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| 235 | { |
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| 236 | [=]{ |
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| 237 | UI_GADGET *UI_GADGET::*when; |
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| 238 | switch (keypress ) |
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| 239 | { |
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| 240 | case (KEY_TAB): |
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| 241 | when = &UI_GADGET::when_tab; |
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| 242 | break; |
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| 243 | case (KEY_TAB+KEY_SHIFTED): |
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| 244 | when = &UI_GADGET::when_btab; |
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| 245 | break; |
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| 246 | case (KEY_UP): |
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| 247 | when = &UI_GADGET::when_up; |
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| 248 | break; |
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| 249 | case (KEY_DOWN): |
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| 250 | when = &UI_GADGET::when_down; |
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| 251 | break; |
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| 252 | case (KEY_LEFT): |
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| 253 | when = &UI_GADGET::when_left; |
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| 254 | break; |
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| 255 | case (KEY_RIGHT): |
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| 256 | when = &UI_GADGET::when_right; |
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| 257 | break; |
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| 258 | default: |
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| 259 | return; |
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| 260 | } |
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| 261 | if (const auto p = dlg->keyboard_focus_gadget->*when) |
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| 262 | dlg->keyboard_focus_gadget = p; |
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| 263 | }(); |
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| 264 | } |
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| 265 | |||
| 266 | window_event_result rval = window_event_result::ignored; |
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| 267 | if (dlg->keyboard_focus_gadget != tmp1) |
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| 268 | { |
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| 269 | if (dlg->keyboard_focus_gadget != NULL ) |
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| 270 | dlg->keyboard_focus_gadget->status = 1; |
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| 271 | if (tmp1 != NULL ) |
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| 272 | tmp1->status = 1; |
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| 273 | rval = window_event_result::handled; |
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| 274 | |||
| 275 | if (keypress) |
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| 276 | return rval; |
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| 277 | } |
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| 278 | |||
| 279 | tmp = dlg->gadget; |
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| 280 | do |
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| 281 | { |
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| 282 | // If it is under another dialog, that dialog's handler would have returned 1 for mouse events. |
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| 283 | // Key events are handled in a priority depending on the window ordering. |
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| 284 | //if (!is_under_another_window( dlg, tmp )) |
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| 285 | rval = ui_gadget_do(dlg, tmp, event); |
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| 286 | |||
| 287 | if (rval == window_event_result::deleted) |
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| 288 | break; |
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| 289 | |||
| 290 | tmp = tmp->next; |
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| 291 | } while(/*!rval &&*/ tmp != dlg->gadget); // have to look for pesky scrollbars in case an arrow button or arrow key are held down |
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| 292 | |||
| 293 | return rval; |
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| 294 | } |
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| 295 | |||
| 296 | |||
| 297 | |||
| 298 | UI_GADGET * ui_gadget_get_next( UI_GADGET * gadget ) |
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| 299 | { |
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| 300 | UI_GADGET * tmp; |
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| 301 | |||
| 302 | tmp = gadget->next; |
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| 303 | |||
| 304 | while( tmp != gadget && (tmp->parent!=NULL) ) |
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| 305 | tmp = tmp->next; |
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| 306 | |||
| 307 | return tmp; |
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| 308 | } |
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| 309 | |||
| 310 | UI_GADGET * ui_gadget_get_prev( UI_GADGET * gadget ) |
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| 311 | { |
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| 312 | UI_GADGET * tmp; |
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| 313 | |||
| 314 | tmp = gadget->prev; |
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| 315 | |||
| 316 | while( tmp != gadget && (tmp->parent!=NULL) ) |
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| 317 | tmp = tmp->prev; |
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| 318 | |||
| 319 | return tmp; |
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| 320 | } |
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| 321 | |||
| 322 | void ui_gadget_calc_keys( UI_DIALOG * dlg) |
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| 323 | { |
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| 324 | UI_GADGET * tmp; |
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| 325 | |||
| 326 | tmp = dlg->gadget; |
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| 327 | |||
| 328 | if (tmp==NULL) return; |
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| 329 | |||
| 330 | do |
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| 331 | { |
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| 332 | tmp->when_tab = ui_gadget_get_next(tmp); |
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| 333 | tmp->when_btab = ui_gadget_get_prev(tmp); |
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| 334 | |||
| 335 | tmp = tmp->next; |
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| 336 | } while( tmp != dlg->gadget ); |
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| 337 | |||
| 338 | } |
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| 339 | |||
| 340 | } |