5c7fc7d143
Every user now uses inheritance and a virtual function override. Make callback_handler pure virtual, delete its body, and then delete the member variables that existed only for use in that body. Remove the constructor parameters that initialized those variables, and update all derived classes accordingly.
223 lines
4.9 KiB
C++
223 lines
4.9 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 <stdio.h>
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#include <stdarg.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 "event.h"
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#include "ui.h"
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#include "mouse.h"
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#include "key.h"
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#include "u_mem.h"
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#include "dxxsconf.h"
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#include "dsx-ns.h"
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#include <array>
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#include <memory>
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namespace dcx {
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// ts = total span
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// w = width of each item
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// n = number of items
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// i = item number (0 based)
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#define EVEN_DIVIDE(ts,w,n,i) ((((ts)-((w)*(n)))*((i)+1))/((n)+1))+((w)*(i))
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#define BUTTON_HORZ_SPACING 20
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#define TEXT_EXTRA_HEIGHT 5
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namespace {
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struct messagebox : UI_DIALOG
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{
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using UI_DIALOG::UI_DIALOG;
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const ui_messagebox_tie *button = nullptr;
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std::array<std::unique_ptr<UI_GADGET_BUTTON>, 10> button_g;
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const char *text = nullptr;
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int *choice = nullptr;
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int width;
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int text_y;
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int line_y;
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virtual window_event_result callback_handler(const d_event &) override;
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};
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window_event_result messagebox::callback_handler(const d_event &event)
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{
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if (event.type == EVENT_UI_DIALOG_DRAW)
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{
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const grs_font * temp_font;
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gr_set_current_canvas(grd_curscreen->sc_canvas);
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auto &canvas = *grd_curcanv;
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temp_font = grd_curscreen->sc_canvas.cv_font;
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if (grd_curscreen->get_screen_width() < 640) {
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grd_curscreen->sc_canvas.cv_font = ui_small_font.get();
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}
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ui_dialog_set_current_canvas(*this);
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ui_string_centered(canvas, width / 2, text_y, text);
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Hline(canvas, 1, width - 2, line_y + 1, CGREY);
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Hline(canvas, 2, width - 2, line_y + 2, CBRIGHT);
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grd_curscreen->sc_canvas.cv_font = temp_font;
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return window_event_result::handled;
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}
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for (uint_fast32_t i=0; i < button->count(); i++ )
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{
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if (GADGET_PRESSED(button_g[i].get()))
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{
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*(choice) = i+1;
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return window_event_result::handled;
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}
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}
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return window_event_result::ignored;
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}
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}
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int (ui_messagebox)( short xc, short yc, const char * text, const ui_messagebox_tie &Button )
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{
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int avg, x, y;
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int button_width, button_height, text_height, text_width;
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int w, h;
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int choice;
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button_width = button_height = 0;
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gr_set_current_canvas(grd_curscreen->sc_canvas);
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auto &canvas = *grd_curcanv;
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auto &cv_font = *canvas.cv_font;
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w = grd_curscreen->get_screen_width();
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h = grd_curscreen->get_screen_height();
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for (uint_fast32_t i=0; i < Button.count(); i++ )
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{
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int width, height;
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ui_get_button_size(cv_font, Button.string(i), width, height);
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if ( width > button_width ) button_width = width;
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if ( height > button_height ) button_height = height;
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}
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gr_get_string_size(cv_font, text, &text_width, &text_height, &avg);
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unsigned width, height;
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width = button_width*Button.count();
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width += BUTTON_HORZ_SPACING*(Button.count()+1);
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width ++;
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text_width += avg*6;
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text_width += 10;
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if (text_width > width )
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width = text_width;
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height = text_height;
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height += button_height;
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height += 4*TEXT_EXTRA_HEIGHT;
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height += 2; // For line in middle
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{
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int mx, my, mz;
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mouse_get_pos(&mx, &my, &mz);
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if ( xc == -1 )
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xc = mx;
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if ( yc == -1 )
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yc = my - button_height/2;
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}
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if ( xc == -2 )
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xc = w/2;
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if ( yc == -2 )
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yc = h/2;
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x = xc - width/2;
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y = yc - height/2;
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if (x < 0 ) {
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x = 0;
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}
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if ( (x+width-1) >= w ) {
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x = w - width;
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}
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if (y < 0 ) {
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y = 0;
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}
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if ( (y+height-1) >= h ) {
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y = h - height;
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}
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const auto dlg = window_create<messagebox>(x, y, width, height, static_cast<dialog_flags>(DF_DIALOG | DF_MODAL));
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dlg->button = &Button;
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dlg->text = text;
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dlg->choice = &choice;
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y = TEXT_EXTRA_HEIGHT + text_height/2 - 1;
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dlg->width = width;
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dlg->text_y = y;
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y = 2*TEXT_EXTRA_HEIGHT + text_height;
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dlg->line_y = y;
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y = height - TEXT_EXTRA_HEIGHT - button_height;
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for (uint_fast32_t i=0; i < Button.count(); i++ )
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{
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x = EVEN_DIVIDE(width,button_width,Button.count(),i);
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dlg->button_g[i] = ui_add_gadget_button(*dlg, x, y, button_width, button_height, Button.string(i), nullptr);
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}
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ui_gadget_calc_keys(*dlg);
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//key_flush();
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dlg->keyboard_focus_gadget = dlg->button_g[0].get();
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choice = 0;
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while(choice==0)
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event_process();
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ui_close_dialog(*dlg);
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return choice;
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}
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}
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