src/date_gui.cpp

   1 /* $Id$ */
   2
   3 /*
   4  * This file is part of OpenTTD.
   5  * 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.
   6  * 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.
   7  * 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/>.
   8  */
   9
  10 /** @file date_gui.cpp Graphical selection of a date. */
  11
  12 #include "stdafx.h"
  13 #include "strings_func.h"
  14 #include "date_func.h"
  15 #include "window_func.h"
  16 #include "window_gui.h"
  17 #include "date_gui.h"
  18 #include "core/geometry_func.hpp"
  19
  20 #include "widgets/dropdown_type.h"
  21 #include "widgets/date_widget.h"
  22
  23
  24 /** Window to select a date graphically by using dropdowns */
  25 struct SetDateWindow : Window {
  26         SetDateCallback *callback; ///< Callback to call when a date has been selected
  27         YearMonthDay date; ///< The currently selected date
  28         Year min_year;     ///< The minimum year in the year dropdown
  29         Year max_year;     ///< The maximum year (inclusive) in the year dropdown
  30
  31         /**
  32          * Create the new 'set date' window
  33          * @param desc the window description
  34          * @param window_number number of the window
  35          * @param parent the parent window, i.e. if this closes we should close too
  36          * @param initial_date the initial date to show
  37          * @param min_year the minimum year to show in the year dropdown
  38          * @param max_year the maximum year (inclusive) to show in the year dropdown
  39          * @param callback the callback to call once a date has been selected
  40          */
  41         SetDateWindow (const WindowDesc *desc, WindowNumber window_number, Window *parent, Date initial_date, Year min_year, Year max_year, SetDateCallback *callback) :
  42                         Window(desc),
  43                         callback(callback),
  44                         min_year(max(MIN_YEAR, min_year)),
  45                         max_year(min(MAX_YEAR, max_year))
  46         {
  47                 assert(this->min_year <= this->max_year);
  48
  49                 if (initial_date == 0) initial_date = _date;
  50                 ConvertDateToYMD(initial_date, &this->date);
  51                 this->date.year = Clamp(this->date.year, min_year, max_year);
  52
  53                 this->parent = parent;
  54                 this->InitNested(window_number);
  55         }
  56
  57         virtual Point OnInitialPosition(int16 sm_width, int16 sm_height, int window_number)
  58         {
  59                 Point pt = { this->parent->left + this->parent->width / 2 - sm_width / 2, this->parent->top + this->parent->height / 2 - sm_height / 2 };
  60                 return pt;
  61         }
  62
  63         /**
  64          * Helper function to construct the dropdown.
  65          * @param widget the dropdown widget to create the dropdown for
  66          */
  67         void ShowDateDropDown(int widget)
  68         {
  69                 int selected;
  70                 DropDownList *list = new DropDownList();
  71
  72                 switch (widget) {
  73                         default: NOT_REACHED();
  74
  75                         case WID_SD_DAY:
  76                                 for (uint i = 0; i < 31; i++) {
  77                                         *list->Append() = new DropDownListStringItem(STR_DAY_NUMBER_1ST + i, i + 1, false);
  78                                 }
  79                                 selected = this->date.day;
  80                                 break;
  81
  82                         case WID_SD_MONTH:
  83                                 for (uint i = 0; i < 12; i++) {
  84                                         *list->Append() = new DropDownListStringItem(STR_MONTH_JAN + i, i, false);
  85                                 }
  86                                 selected = this->date.month;
  87                                 break;
  88
  89                         case WID_SD_YEAR:
  90                                 for (Year i = this->min_year; i <= this->max_year; i++) {
  91                                         DropDownListParamStringItem *item = new DropDownListParamStringItem(STR_JUST_INT, i, false);
  92                                         item->SetParam(0, i);
  93                                         *list->Append() = item;
  94                                 }
  95                                 selected = this->date.year;
  96                                 break;
  97                 }
  98
  99                 ShowDropDownList(this, list, selected, widget);
 100         }
 101
 102         virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
 103         {
 104                 Dimension d = {0, 0};
 105                 switch (widget) {
 106                         default: return;
 107
 108                         case WID_SD_DAY:
 109                                 for (uint i = 0; i < 31; i++) {
 110                                         d = maxdim(d, GetStringBoundingBox(STR_DAY_NUMBER_1ST + i));
 111                                 }
 112                                 break;
 113
 114                         case WID_SD_MONTH:
 115                                 for (uint i = 0; i < 12; i++) {
 116                                         d = maxdim(d, GetStringBoundingBox(STR_MONTH_JAN + i));
 117                                 }
 118                                 break;
 119
 120                         case WID_SD_YEAR:
 121                                 SetDParamMaxValue(0, this->max_year);
 122                                 d = maxdim(d, GetStringBoundingBox(STR_JUST_INT));
 123                                 break;
 124                 }
 125
 126                 d.width += padding.width;
 127                 d.height += padding.height;
 128                 *size = d;
 129         }
 130
 131         virtual void SetStringParameters(int widget) const
 132         {
 133                 switch (widget) {
 134                         case WID_SD_DAY:   SetDParam(0, this->date.day - 1 + STR_DAY_NUMBER_1ST); break;
 135                         case WID_SD_MONTH: SetDParam(0, this->date.month + STR_MONTH_JAN); break;
 136                         case WID_SD_YEAR:  SetDParam(0, this->date.year); break;
 137                 }
 138         }
 139
 140         virtual void OnClick(Point pt, int widget, int click_count)
 141         {
 142                 switch (widget) {
 143                         case WID_SD_DAY:
 144                         case WID_SD_MONTH:
 145                         case WID_SD_YEAR:
 146                                 ShowDateDropDown(widget);
 147                                 break;
 148
 149                         case WID_SD_SET_DATE:
 150                                 if (this->callback != NULL) this->callback(this, ConvertYMDToDate(this->date.year, this->date.month, this->date.day));
 151                                 this->Delete();
 152                                 break;
 153                 }
 154         }
 155
 156         virtual void OnDropdownSelect(int widget, int index)
 157         {
 158                 switch (widget) {
 159                         case WID_SD_DAY:
 160                                 this->date.day = index;
 161                                 break;
 162
 163                         case WID_SD_MONTH:
 164                                 this->date.month = index;
 165                                 break;
 166
 167                         case WID_SD_YEAR:
 168                                 this->date.year = index;
 169                                 break;
 170                 }
 171                 this->SetDirty();
 172         }
 173 };
 174
 175 /** Widgets for the date setting window. */
 176 static const NWidgetPart _nested_set_date_widgets[] = {
 177         NWidget(NWID_HORIZONTAL),
 178                 NWidget(WWT_CLOSEBOX, COLOUR_BROWN),
 179                 NWidget(WWT_CAPTION, COLOUR_BROWN), SetDataTip(STR_DATE_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
 180         EndContainer(),
 181         NWidget(WWT_PANEL, COLOUR_BROWN),
 182                 NWidget(NWID_VERTICAL), SetPIP(6, 6, 6),
 183                         NWidget(NWID_HORIZONTAL, NC_EQUALSIZE), SetPIP(6, 6, 6),
 184                                 NWidget(WWT_DROPDOWN, COLOUR_ORANGE, WID_SD_DAY), SetFill(1, 0), SetDataTip(STR_JUST_STRING, STR_DATE_DAY_TOOLTIP),
 185                                 NWidget(WWT_DROPDOWN, COLOUR_ORANGE, WID_SD_MONTH), SetFill(1, 0), SetDataTip(STR_JUST_STRING, STR_DATE_MONTH_TOOLTIP),
 186                                 NWidget(WWT_DROPDOWN, COLOUR_ORANGE, WID_SD_YEAR), SetFill(1, 0), SetDataTip(STR_JUST_INT, STR_DATE_YEAR_TOOLTIP),
 187                         EndContainer(),
 188                         NWidget(NWID_HORIZONTAL),
 189                                 NWidget(NWID_SPACER), SetFill(1, 0),
 190                                 NWidget(WWT_PUSHTXTBTN, COLOUR_BROWN, WID_SD_SET_DATE), SetMinimalSize(100, 12), SetDataTip(STR_DATE_SET_DATE, STR_DATE_SET_DATE_TOOLTIP),
 191                                 NWidget(NWID_SPACER), SetFill(1, 0),
 192                         EndContainer(),
 193                 EndContainer(),
 194         EndContainer()
 195 };
 196
 197 /** Description of the date setting window. */
 198 static const WindowDesc _set_date_desc(
 199         WDP_CENTER, 0, 0,
 200         WC_SET_DATE, WC_NONE,
 201         0,
 202         _nested_set_date_widgets, lengthof(_nested_set_date_widgets)
 203 );
 204
 205 /**
 206  * Create the new 'set date' window
 207  * @param window_number number for the window
 208  * @param parent the parent window, i.e. if this closes we should close too
 209  * @param initial_date the initial date to show
 210  * @param min_year the minimum year to show in the year dropdown
 211  * @param max_year the maximum year (inclusive) to show in the year dropdown
 212  * @param callback the callback to call once a date has been selected
 213  */
 214 void ShowSetDateWindow(Window *parent, int window_number, Date initial_date, Year min_year, Year max_year, SetDateCallback *callback)
 215 {
 216         DeleteWindowByClass(WC_SET_DATE);
 217         new SetDateWindow(&_set_date_desc, window_number, parent, initial_date, min_year, max_year, callback);
 218 }