341 lines
8.2 KiB
C++
341 lines
8.2 KiB
C++
/*
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* Portions of this file are copyright Rebirth contributors and licensed as
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* described in COPYING.txt.
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* Portions of this file are copyright Parallax Software and licensed
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* according to the Parallax license below.
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* See COPYING.txt for license details.
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THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
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SOFTWARE CORPORATION ("PARALLAX"). PARALLAX, IN DISTRIBUTING THE CODE TO
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END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A
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ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS
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IN USING, DISPLAYING, AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS
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SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE
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FREE PURPOSES. IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE
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CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES. THE END-USER UNDERSTANDS
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AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.
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COPYRIGHT 1993-1999 PARALLAX SOFTWARE CORPORATION. ALL RIGHTS RESERVED.
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*/
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#include <stdexcept>
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#include <stdio.h>
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#include <stdlib.h>
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#include "u_mem.h"
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#include "maths.h"
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#include "pstypes.h"
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#include "gr.h"
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#include "ui.h"
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#include "event.h"
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#include "mouse.h"
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#include "window.h"
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#include "dxxerror.h"
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#include "key.h"
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namespace dcx {
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UI_GADGET * selected_gadget;
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constexpr std::integral_constant<uint8_t, 1> UI_GADGET_BUTTON::s_kind;
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constexpr std::integral_constant<uint8_t, 2> UI_GADGET_LISTBOX::s_kind;
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constexpr std::integral_constant<uint8_t, 3> UI_GADGET_SCROLLBAR::s_kind;
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constexpr std::integral_constant<uint8_t, 4> UI_GADGET_RADIO::s_kind;
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constexpr std::integral_constant<uint8_t, 5> UI_GADGET_CHECKBOX::s_kind;
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constexpr std::integral_constant<uint8_t, 6> UI_GADGET_INPUTBOX::s_kind;
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constexpr std::integral_constant<uint8_t, 7> UI_GADGET_USERBOX::s_kind;
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constexpr std::integral_constant<uint8_t, 9> UI_GADGET_ICON::s_kind;
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namespace {
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struct event_gadget : d_event
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{
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UI_GADGET *const gadget;
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constexpr event_gadget(const event_type t, UI_GADGET *const g) :
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d_event(t), gadget(g)
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{
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}
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};
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}
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void ui_gadget_add(UI_DIALOG * dlg, short x1, short y1, short x2, short y2, UI_GADGET *gadget)
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{
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if (dlg->gadget == NULL )
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{
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dlg->gadget = gadget;
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gadget->prev = gadget;
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gadget->next = gadget;
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} else {
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dlg->gadget->prev->next = gadget;
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gadget->next = dlg->gadget;
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gadget->prev = dlg->gadget->prev;
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dlg->gadget->prev = gadget;
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}
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gadget->when_tab = NULL;
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gadget->when_btab = NULL;
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gadget->when_up = NULL;
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gadget->when_down = NULL;
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gadget->when_left = NULL;
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gadget->when_right = NULL;
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gadget->status = 1;
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gadget->oldstatus = 0;
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if ( x1==0 && x2==0 && y1==0 && y2== 0 )
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gadget->canvas.reset();
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else
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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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gadget->x1 = gadget->canvas->cv_bitmap.bm_x;
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gadget->y1 = gadget->canvas->cv_bitmap.bm_y;
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gadget->x2 = gadget->canvas->cv_bitmap.bm_x+x2-x1+1;
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gadget->y2 = gadget->canvas->cv_bitmap.bm_y+y2-y1+1;
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gadget->parent = NULL;
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gadget->hotkey = -1;
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}
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#if 0
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int is_under_another_window( UI_DIALOG * dlg, UI_GADGET * gadget )
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{
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UI_DIALOG * temp;
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temp = dlg->next;
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while( temp != NULL ) {
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if ( ( gadget->x1 > temp->x) &&
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( gadget->x1 < (temp->x+temp->width) ) &&
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( gadget->y1 > temp->y) &&
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( gadget->y1 < (temp->y+temp->height) )
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)
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{
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//gadget->status =1;
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return 1;
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}
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if ( ( gadget->x2 > temp->x) &&
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( gadget->x2 < (temp->x+temp->width) ) &&
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( gadget->y2 > temp->y) &&
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( gadget->y2 < (temp->y+temp->height) )
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)
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{
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//gadget->status =1;
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return 1;
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}
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temp = temp->next;
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}
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return 0;
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}
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#endif
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int ui_mouse_on_gadget( UI_GADGET * gadget )
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{
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int x, y, z;
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mouse_get_pos(&x, &y, &z);
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if ((x >= gadget->x1) && (x <= gadget->x2-1) && (y >= gadget->y1) && (y <= gadget->y2-1) )
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{
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#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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if (is_under_another_window(dlg, gadget))
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return 0;
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#endif
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return 1;
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} else
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return 0;
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}
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static window_event_result ui_gadget_do(UI_DIALOG *dlg, UI_GADGET *g,const d_event &event)
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{
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switch( g->kind )
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{
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case UI_GADGET_BUTTON::s_kind:
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return ui_button_do(dlg, static_cast<UI_GADGET_BUTTON *>(g), event);
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case UI_GADGET_LISTBOX::s_kind:
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return ui_listbox_do(dlg, static_cast<UI_GADGET_LISTBOX *>(g), event);
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case UI_GADGET_SCROLLBAR::s_kind:
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return ui_scrollbar_do(dlg, static_cast<UI_GADGET_SCROLLBAR *>(g), event);
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case UI_GADGET_RADIO::s_kind:
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return ui_radio_do(dlg, static_cast<UI_GADGET_RADIO *>(g), event);
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case UI_GADGET_CHECKBOX::s_kind:
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return ui_checkbox_do(dlg, static_cast<UI_GADGET_CHECKBOX *>(g), event);
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case UI_GADGET_INPUTBOX::s_kind:
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return ui_inputbox_do(dlg, static_cast<UI_GADGET_INPUTBOX *>(g), event);
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case UI_GADGET_USERBOX::s_kind:
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return ui_userbox_do(dlg, static_cast<UI_GADGET_USERBOX *>(g), event);
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case UI_GADGET_ICON::s_kind:
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return ui_icon_do(dlg, static_cast<UI_GADGET_ICON *>(g), event);
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}
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return window_event_result::ignored;
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}
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window_event_result ui_gadget_send_event(UI_DIALOG *dlg, event_type type, UI_GADGET *gadget)
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{
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const event_gadget event{type, gadget};
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if (gadget->parent)
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return ui_gadget_do(dlg, gadget->parent, event);
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return window_send_event(*ui_dialog_get_window(dlg), event);
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}
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UI_GADGET *ui_event_get_gadget(const d_event &event)
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{
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auto &e = static_cast<const event_gadget &>(event);
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Assert(e.type >= EVENT_UI_GADGET_PRESSED); // Any UI event
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return e.gadget;
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}
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window_event_result ui_dialog_do_gadgets(UI_DIALOG * dlg,const d_event &event)
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{
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int keypress = 0;
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UI_GADGET * tmp, * tmp1;
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if (event.type == EVENT_KEY_COMMAND)
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keypress = event_key_get(event);
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tmp = dlg->gadget;
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if (tmp == NULL) return window_event_result::ignored;
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if (selected_gadget==NULL)
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selected_gadget = tmp;
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tmp1 = dlg->keyboard_focus_gadget;
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do
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{
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if (ui_mouse_on_gadget(tmp) && B1_JUST_PRESSED )
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{
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selected_gadget = tmp;
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if (tmp->parent!=NULL)
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{
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while (tmp->parent != NULL )
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tmp = tmp->parent;
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dlg->keyboard_focus_gadget = tmp;
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break;
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}
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else
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{
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dlg->keyboard_focus_gadget = tmp;
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break;
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}
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}
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if ( tmp->hotkey == keypress )
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{
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dlg->keyboard_focus_gadget = tmp;
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break;
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}
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tmp = tmp->next;
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} while( tmp != dlg->gadget );
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if (dlg->keyboard_focus_gadget != NULL)
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{
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[=]{
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UI_GADGET *UI_GADGET::*when;
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switch (keypress )
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{
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case (KEY_TAB):
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when = &UI_GADGET::when_tab;
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break;
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case (KEY_TAB+KEY_SHIFTED):
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when = &UI_GADGET::when_btab;
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break;
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case (KEY_UP):
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when = &UI_GADGET::when_up;
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break;
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case (KEY_DOWN):
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when = &UI_GADGET::when_down;
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break;
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case (KEY_LEFT):
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when = &UI_GADGET::when_left;
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break;
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case (KEY_RIGHT):
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when = &UI_GADGET::when_right;
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break;
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default:
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return;
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}
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if (const auto p = dlg->keyboard_focus_gadget->*when)
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dlg->keyboard_focus_gadget = p;
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}();
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}
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window_event_result rval = window_event_result::ignored;
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if (dlg->keyboard_focus_gadget != tmp1)
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{
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if (dlg->keyboard_focus_gadget != NULL )
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dlg->keyboard_focus_gadget->status = 1;
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if (tmp1 != NULL )
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tmp1->status = 1;
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rval = window_event_result::handled;
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if (keypress)
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return rval;
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}
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tmp = dlg->gadget;
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do
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{
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// If it is under another dialog, that dialog's handler would have returned 1 for mouse events.
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// Key events are handled in a priority depending on the window ordering.
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//if (!is_under_another_window( dlg, tmp ))
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rval = ui_gadget_do(dlg, tmp, event);
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if (rval == window_event_result::deleted)
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break;
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tmp = tmp->next;
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} 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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return rval;
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}
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UI_GADGET * ui_gadget_get_next( UI_GADGET * gadget )
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{
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UI_GADGET * tmp;
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tmp = gadget->next;
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while( tmp != gadget && (tmp->parent!=NULL) )
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tmp = tmp->next;
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return tmp;
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}
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UI_GADGET * ui_gadget_get_prev( UI_GADGET * gadget )
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{
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UI_GADGET * tmp;
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tmp = gadget->prev;
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while( tmp != gadget && (tmp->parent!=NULL) )
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tmp = tmp->prev;
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return tmp;
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}
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void ui_gadget_calc_keys( UI_DIALOG * dlg)
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{
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UI_GADGET * tmp;
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tmp = dlg->gadget;
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if (tmp==NULL) return;
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do
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{
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tmp->when_tab = ui_gadget_get_next(tmp);
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tmp->when_btab = ui_gadget_get_prev(tmp);
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tmp = tmp->next;
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} while( tmp != dlg->gadget );
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}
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}
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