date_gui.cpp

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/*
 * This file is part of OpenTTD.
 * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
 * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
 */
 
#include "stdafx.h"
#include "strings_func.h"
#include "timer/timer_game_economy.h"
#include "window_func.h"
#include "window_gui.h"
#include "date_gui.h"
#include "core/geometry_func.hpp"
#include "dropdown_type.h"
#include "dropdown_func.h"
 
#include "widgets/date_widget.h"
 
#include "safeguards.h"
 
 
struct SetDateWindow : Window {
  SetDateCallback *callback = nullptr; 
  void *callback_data = nullptr; 
  TimerGameEconomy::YearMonthDay date{}; 
  TimerGameEconomy::Year min_year{}; 
  TimerGameEconomy::Year max_year{}; 
 
  SetDateWindow(WindowDesc &desc, WindowNumber window_number, Window *parent, TimerGameEconomy::Date initial_date, TimerGameEconomy::Year min_year, TimerGameEconomy::Year max_year, SetDateCallback *callback, void *callback_data) :
      Window(desc),
      callback(callback),
      callback_data(callback_data),
      min_year(std::max(EconomyTime::MIN_YEAR, min_year)),
      max_year(std::min(EconomyTime::MAX_YEAR, max_year))
  {
    assert(this->min_year <= this->max_year);
    this->parent = parent;
    this->InitNested(window_number);
 
    if (initial_date == 0) initial_date = TimerGameEconomy::date;
    this->date = TimerGameEconomy::ConvertDateToYMD(initial_date);
    this->date.year = Clamp(this->date.year, min_year, max_year);
  }
 
  Point OnInitialPosition([[maybe_unused]] int16_t sm_width, [[maybe_unused]] int16_t sm_height, [[maybe_unused]] int window_number) override
  {
    Point pt = { this->parent->left + this->parent->width / 2 - sm_width / 2, this->parent->top + this->parent->height / 2 - sm_height / 2 };
    return pt;
  }
 
  void ShowDateDropDown(WidgetID widget)
  {
    int selected;
    DropDownList list;
 
    switch (widget) {
      default: NOT_REACHED();
 
      case WID_SD_DAY:
        for (uint i = 0; i < 31; i++) {
          list.push_back(MakeDropDownListStringItem(STR_DAY_NUMBER_1ST + i, i + 1));
        }
        selected = this->date.day;
        break;
 
      case WID_SD_MONTH:
        for (uint i = 0; i < 12; i++) {
          list.push_back(MakeDropDownListStringItem(STR_MONTH_JAN + i, i));
        }
        selected = this->date.month;
        break;
 
      case WID_SD_YEAR:
        for (TimerGameEconomy::Year i = this->min_year; i <= this->max_year; i++) {
          list.push_back(MakeDropDownListStringItem(GetString(STR_JUST_INT, i), i.base()));
        }
        selected = this->date.year.base();
        break;
    }
 
    ShowDropDownList(this, std::move(list), selected, widget);
  }
 
  void UpdateWidgetSize(WidgetID widget, Dimension &size, [[maybe_unused]] const Dimension &padding, [[maybe_unused]] Dimension &fill, [[maybe_unused]] Dimension &resize) override
  {
    Dimension d = {0, 0};
    switch (widget) {
      default: return;
 
      case WID_SD_DAY:
        for (uint i = 0; i < 31; i++) {
          d = maxdim(d, GetStringBoundingBox(STR_DAY_NUMBER_1ST + i));
        }
        break;
 
      case WID_SD_MONTH:
        for (uint i = 0; i < 12; i++) {
          d = maxdim(d, GetStringBoundingBox(STR_MONTH_JAN + i));
        }
        break;
 
      case WID_SD_YEAR:
        d = maxdim(d, GetStringBoundingBox(GetString(STR_JUST_INT, GetParamMaxValue(this->max_year.base()))));
        break;
    }
 
    d.width += padding.width;
    d.height += padding.height;
    size = d;
  }
 
  std::string GetWidgetString(WidgetID widget, StringID stringid) const override
  {
    switch (widget) {
      case WID_SD_DAY:   return GetString(STR_DAY_NUMBER_1ST + this->date.day - 1);
      case WID_SD_MONTH: return GetString(STR_MONTH_JAN + this->date.month);
      case WID_SD_YEAR:  return GetString(STR_JUST_INT, this->date.year);
      default: return this->Window::GetWidgetString(widget, stringid);
    }
  }
 
  void OnClick([[maybe_unused]] Point pt, WidgetID widget, [[maybe_unused]] int click_count) override
  {
    switch (widget) {
      case WID_SD_DAY:
      case WID_SD_MONTH:
      case WID_SD_YEAR:
        ShowDateDropDown(widget);
        break;
 
      case WID_SD_SET_DATE:
        if (this->callback != nullptr) this->callback(this, TimerGameEconomy::ConvertYMDToDate(this->date.year, this->date.month, this->date.day), this->callback_data);
        this->Close();
        break;
    }
  }
 
  void OnDropdownSelect(WidgetID widget, int index) override
  {
    switch (widget) {
      case WID_SD_DAY:
        this->date.day = index;
        break;
 
      case WID_SD_MONTH:
        this->date.month = index;
        break;
 
      case WID_SD_YEAR:
        this->date.year = TimerGameEconomy::Year{index};
        break;
    }
    this->SetDirty();
  }
};
 
static constexpr NWidgetPart _nested_set_date_widgets[] = {
  NWidget(NWID_HORIZONTAL),
    NWidget(WWT_CLOSEBOX, COLOUR_BROWN),
    NWidget(WWT_CAPTION, COLOUR_BROWN), SetStringTip(STR_DATE_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
  EndContainer(),
  NWidget(WWT_PANEL, COLOUR_BROWN),
    NWidget(NWID_VERTICAL), SetPIP(6, 6, 6),
      NWidget(NWID_HORIZONTAL, NWidContainerFlag::EqualSize), SetPIP(6, 6, 6),
        NWidget(WWT_DROPDOWN, COLOUR_ORANGE, WID_SD_DAY), SetFill(1, 0), SetToolTip(STR_DATE_DAY_TOOLTIP),
        NWidget(WWT_DROPDOWN, COLOUR_ORANGE, WID_SD_MONTH), SetFill(1, 0), SetToolTip(STR_DATE_MONTH_TOOLTIP),
        NWidget(WWT_DROPDOWN, COLOUR_ORANGE, WID_SD_YEAR), SetFill(1, 0), SetToolTip(STR_DATE_YEAR_TOOLTIP),
      EndContainer(),
      NWidget(NWID_HORIZONTAL),
        NWidget(NWID_SPACER), SetFill(1, 0),
        NWidget(WWT_PUSHTXTBTN, COLOUR_BROWN, WID_SD_SET_DATE), SetMinimalSize(100, 12), SetStringTip(STR_DATE_SET_DATE, STR_DATE_SET_DATE_TOOLTIP),
        NWidget(NWID_SPACER), SetFill(1, 0),
      EndContainer(),
    EndContainer(),
  EndContainer()
};
 
static WindowDesc _set_date_desc(
  WDP_CENTER, nullptr, 0, 0,
  WC_SET_DATE, WC_NONE,
  {},
  _nested_set_date_widgets
);
 
void ShowSetDateWindow(Window *parent, int window_number, TimerGameEconomy::Date initial_date, TimerGameEconomy::Year min_year, TimerGameEconomy::Year max_year, SetDateCallback *callback, void *callback_data)
{
  CloseWindowByClass(WC_SET_DATE);
  new SetDateWindow(_set_date_desc, window_number, parent, initial_date, min_year, max_year, callback, callback_data);
}