music_gui.cpp

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00001 /* $Id$ */
00002 
00003 /*
00004  * This file is part of OpenTTD.
00005  * 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.
00006  * 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.
00007  * 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/>.
00008  */
00009 
00012 #include "stdafx.h"
00013 #include "openttd.h"
00014 #include "fileio_func.h"
00015 #include "base_media_base.h"
00016 #include "music/music_driver.hpp"
00017 #include "window_gui.h"
00018 #include "strings_func.h"
00019 #include "window_func.h"
00020 #include "sound_func.h"
00021 #include "gfx_func.h"
00022 #include "core/random_func.hpp"
00023 #include "gui.h"
00024 
00025 #include "table/strings.h"
00026 #include "table/sprites.h"
00027 
00033 static const char *GetSongName(int index)
00034 {
00035   return BaseMusic::GetUsedSet()->song_name[index];
00036 }
00037 
00043 static int GetTrackNumber(int index)
00044 {
00045   return BaseMusic::GetUsedSet()->track_nr[index];
00046 }
00047 
00049 static byte _music_wnd_cursong = 1;
00051 static bool _song_is_active = false;
00052 
00054 static byte _cur_playlist[NUM_SONGS_PLAYLIST + 1];
00055 
00057 static byte _playlist_all[NUM_SONGS_AVAILABLE + 1];
00059 static byte _playlist_old_style[NUM_SONGS_CLASS + 1];
00061 static byte _playlist_new_style[NUM_SONGS_CLASS + 1];
00063 static byte _playlist_ezy_street[NUM_SONGS_CLASS + 1];
00064 
00065 assert_compile(lengthof(msf.custom_1) == NUM_SONGS_PLAYLIST + 1);
00066 assert_compile(lengthof(msf.custom_2) == NUM_SONGS_PLAYLIST + 1);
00067 
00069 static byte * const _playlists[] = {
00070   _playlist_all,
00071   _playlist_old_style,
00072   _playlist_new_style,
00073   _playlist_ezy_street,
00074   msf.custom_1,
00075   msf.custom_2,
00076 };
00077 
00082 void ValidatePlaylist(byte *playlist)
00083 {
00084   while (*playlist != 0) {
00085     if (*playlist <= BaseMusic::GetUsedSet()->num_available) {
00086       playlist++;
00087       continue;
00088     }
00089     for (byte *p = playlist; *p != 0; p++) {
00090       p[0] = p[1];
00091     }
00092   }
00093 }
00094 
00096 void InitializeMusic()
00097 {
00098   uint j = 0;
00099   for (uint i = 0; i < NUM_SONGS_AVAILABLE; i++) {
00100     if (StrEmpty(GetSongName(i))) continue;
00101     _playlist_all[j++] = i + 1;
00102   }
00103   /* Terminate the list */
00104   _playlist_all[j] = 0;
00105 
00106   /* Now make the 'styled' playlists */
00107   for (uint k = 0; k < NUM_SONG_CLASSES; k++) {
00108     j = 0;
00109     for (uint i = 0; i < NUM_SONGS_CLASS; i++) {
00110       int id = k * NUM_SONGS_CLASS + i + 1;
00111       if (StrEmpty(GetSongName(id))) continue;
00112       _playlists[k + 1][j++] = id + 1;
00113     }
00114     /* Terminate the list */
00115     _playlists[k + 1][j] = 0;
00116   }
00117 
00118   ValidatePlaylist(msf.custom_1);
00119   ValidatePlaylist(msf.custom_2);
00120 
00121   if (BaseMusic::GetUsedSet()->num_available < _music_wnd_cursong) {
00122     /* If there are less songs than the currently played song,
00123      * just pause and reset to no song. */
00124     _music_wnd_cursong = 0;
00125     _song_is_active = false;
00126   }
00127 }
00128 
00129 static void SkipToPrevSong()
00130 {
00131   byte *b = _cur_playlist;
00132   byte *p = b;
00133   byte t;
00134 
00135   if (b[0] == 0) return; // empty playlist
00136 
00137   do p++; while (p[0] != 0); // find the end
00138 
00139   t = *--p; // and copy the bytes
00140   while (p != b) {
00141     p--;
00142     p[1] = p[0];
00143   }
00144   *b = t;
00145 
00146   _song_is_active = false;
00147 }
00148 
00149 static void SkipToNextSong()
00150 {
00151   byte *b = _cur_playlist;
00152   byte t;
00153 
00154   t = b[0];
00155   if (t != 0) {
00156     while (b[1] != 0) {
00157       b[0] = b[1];
00158       b++;
00159     }
00160     b[0] = t;
00161   }
00162 
00163   _song_is_active = false;
00164 }
00165 
00166 static void MusicVolumeChanged(byte new_vol)
00167 {
00168   _music_driver->SetVolume(new_vol);
00169 }
00170 
00171 static void DoPlaySong()
00172 {
00173   char filename[MAX_PATH];
00174   FioFindFullPath(filename, lengthof(filename), GM_DIR,
00175       BaseMusic::GetUsedSet()->files[_music_wnd_cursong - 1].filename);
00176   _music_driver->PlaySong(filename);
00177   SetWindowDirty(WC_MUSIC_WINDOW, 0);
00178 }
00179 
00180 static void DoStopMusic()
00181 {
00182   _music_driver->StopSong();
00183   SetWindowDirty(WC_MUSIC_WINDOW, 0);
00184 }
00185 
00186 static void SelectSongToPlay()
00187 {
00188   uint i = 0;
00189   uint j = 0;
00190 
00191   memset(_cur_playlist, 0, sizeof(_cur_playlist));
00192   do {
00193     const char *filename = BaseMusic::GetUsedSet()->files[_playlists[msf.playlist][i] - 1].filename;
00194     /* We are now checking for the existence of that file prior
00195      * to add it to the list of available songs */
00196     if (!StrEmpty(filename) && FioCheckFileExists(filename, GM_DIR)) {
00197       _cur_playlist[j] = _playlists[msf.playlist][i];
00198       j++;
00199     }
00200   } while (_playlists[msf.playlist][++i] != 0 && j < lengthof(_cur_playlist) - 1);
00201 
00202   /* Do not shuffle when on the intro-start window, as the song to play has to be the original TTD Theme*/
00203   if (msf.shuffle && _game_mode != GM_MENU) {
00204     i = 500;
00205     do {
00206       uint32 r = InteractiveRandom();
00207       byte *a = &_cur_playlist[GB(r, 0, 5)];
00208       byte *b = &_cur_playlist[GB(r, 8, 5)];
00209 
00210       if (*a != 0 && *b != 0) {
00211         byte t = *a;
00212         *a = *b;
00213         *b = t;
00214       }
00215     } while (--i);
00216   }
00217 }
00218 
00219 static void StopMusic()
00220 {
00221   _music_wnd_cursong = 0;
00222   DoStopMusic();
00223   _song_is_active = false;
00224   SetWindowWidgetDirty(WC_MUSIC_WINDOW, 0, 9);
00225 }
00226 
00227 static void PlayPlaylistSong()
00228 {
00229   if (_cur_playlist[0] == 0) {
00230     SelectSongToPlay();
00231     /* if there is not songs in the playlist, it may indicate
00232      * no file on the gm folder, or even no gm folder.
00233      * Stop the playback, then */
00234     if (_cur_playlist[0] == 0) {
00235       _song_is_active = false;
00236       _music_wnd_cursong = 0;
00237       msf.playing = false;
00238       return;
00239     }
00240   }
00241   _music_wnd_cursong = _cur_playlist[0];
00242   DoPlaySong();
00243   _song_is_active = true;
00244 
00245   SetWindowWidgetDirty(WC_MUSIC_WINDOW, 0, 9);
00246 }
00247 
00248 void ResetMusic()
00249 {
00250   _music_wnd_cursong = 1;
00251   DoPlaySong();
00252 }
00253 
00254 void MusicLoop()
00255 {
00256   if (!msf.playing && _song_is_active) {
00257     StopMusic();
00258   } else if (msf.playing && !_song_is_active) {
00259     PlayPlaylistSong();
00260   }
00261 
00262   if (!_song_is_active) return;
00263 
00264   if (!_music_driver->IsSongPlaying()) {
00265     if (_game_mode != GM_MENU) {
00266       StopMusic();
00267       SkipToNextSong();
00268       PlayPlaylistSong();
00269     } else {
00270       ResetMusic();
00271     }
00272   }
00273 }
00274 
00275 static void SelectPlaylist(byte list)
00276 {
00277   msf.playlist = list;
00278   InvalidateWindowData(WC_MUSIC_TRACK_SELECTION, 0);
00279   InvalidateWindowData(WC_MUSIC_WINDOW, 0);
00280 }
00281 
00282 enum MusicTrackSelectionWidgets {
00283   MTSW_LIST_LEFT,
00284   MTSW_PLAYLIST,
00285   MTSW_LIST_RIGHT,
00286   MTSW_ALL,
00287   MTSW_OLD,
00288   MTSW_NEW,
00289   MTSW_EZY,
00290   MTSW_CUSTOM1,
00291   MTSW_CUSTOM2,
00292   MTSW_CLEAR,
00293 };
00294 
00295 struct MusicTrackSelectionWindow : public Window {
00296   MusicTrackSelectionWindow(const WindowDesc *desc, WindowNumber number) : Window()
00297   {
00298     this->InitNested(desc, number);
00299     this->LowerWidget(MTSW_LIST_LEFT);
00300     this->LowerWidget(MTSW_LIST_RIGHT);
00301     this->SetWidgetDisabledState(MTSW_CLEAR, msf.playlist <= 3);
00302     this->LowerWidget(MTSW_ALL + msf.playlist);
00303   }
00304 
00305   virtual void SetStringParameters(int widget) const
00306   {
00307     switch (widget) {
00308       case MTSW_PLAYLIST:
00309         SetDParam(0, STR_MUSIC_PLAYLIST_ALL + msf.playlist);
00310         break;
00311     }
00312   }
00313 
00314   virtual void OnInvalidateData(int data = 0)
00315   {
00316     for (int i = 0; i < 6; i++) {
00317       this->SetWidgetLoweredState(MTSW_ALL + i, i == msf.playlist);
00318     }
00319     this->SetWidgetDisabledState(MTSW_CLEAR, msf.playlist <= 3);
00320     this->SetDirty();
00321   }
00322 
00323   virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
00324   {
00325     switch (widget) {
00326       case MTSW_PLAYLIST: {
00327         Dimension d = {0, 0};
00328 
00329         for (int i = 0; i < 6; i++) {
00330           SetDParam(0, STR_MUSIC_PLAYLIST_ALL + i);
00331           d = maxdim(d, GetStringBoundingBox(STR_PLAYLIST_PROGRAM));
00332         }
00333         d.width += padding.width;
00334         d.height += padding.height;
00335         *size = maxdim(*size, d);
00336       } break;
00337 
00338       case MTSW_LIST_LEFT: case MTSW_LIST_RIGHT: {
00339         Dimension d = {0, 0};
00340 
00341         for (uint i = 0; i < NUM_SONGS_AVAILABLE; i++) {
00342           const char *song_name = GetSongName(i);
00343           if (StrEmpty(song_name)) continue;
00344 
00345           SetDParam(0, GetTrackNumber(i));
00346           SetDParam(1, 2);
00347           SetDParamStr(2, GetSongName(i));
00348           Dimension d2 = GetStringBoundingBox(STR_PLAYLIST_TRACK_NAME);
00349           d.width = max(d.width, d2.width);
00350           d.height += d2.height;
00351         }
00352         d.width += padding.width;
00353         d.height += padding.height;
00354         *size = maxdim(*size, d);
00355       } break;
00356     }
00357   }
00358 
00359   virtual void DrawWidget(const Rect &r, int widget) const
00360   {
00361     switch (widget) {
00362       case MTSW_LIST_LEFT: {
00363         GfxFillRect(r.left + 1, r.top + 1, r.right - 1, r.bottom - 1, 0);
00364 
00365         int y = r.top + WD_FRAMERECT_TOP;
00366         for (uint i = 0; i < NUM_SONGS_AVAILABLE; i++) {
00367           const char *song_name = GetSongName(i);
00368           if (StrEmpty(song_name)) continue;
00369 
00370           SetDParam(0, GetTrackNumber(i));
00371           SetDParam(1, 2);
00372           SetDParamStr(2, song_name);
00373           DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, y, STR_PLAYLIST_TRACK_NAME);
00374           y += FONT_HEIGHT_SMALL;
00375         }
00376       } break;
00377 
00378       case MTSW_LIST_RIGHT: {
00379         GfxFillRect(r.left + 1, r.top + 1, r.right - 1, r.bottom - 1, 0);
00380 
00381         int y = r.top + WD_FRAMERECT_TOP;
00382         for (const byte *p = _playlists[msf.playlist]; *p != 0; p++) {
00383           uint i = *p - 1;
00384           SetDParam(0, GetTrackNumber(i));
00385           SetDParam(1, 2);
00386           SetDParamStr(2, GetSongName(i));
00387           DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, y, STR_PLAYLIST_TRACK_NAME);
00388           y += FONT_HEIGHT_SMALL;
00389         }
00390       } break;
00391     }
00392   }
00393 
00394   virtual void OnPaint()
00395   {
00396     this->DrawWidgets();
00397   }
00398 
00399   virtual void OnClick(Point pt, int widget)
00400   {
00401     switch (widget) {
00402       case MTSW_LIST_LEFT: { // add to playlist
00403         int y = (pt.y - this->GetWidget<NWidgetBase>(widget)->pos_y) / FONT_HEIGHT_SMALL;
00404 
00405         if (msf.playlist < 4) return;
00406         if (!IsInsideMM(y, 0, BaseMusic::GetUsedSet()->num_available)) return;
00407 
00408         byte *p = _playlists[msf.playlist];
00409         for (uint i = 0; i != NUM_SONGS_PLAYLIST - 1; i++) {
00410           if (p[i] == 0) {
00411             /* Find the actual song number */
00412             for (uint j = 0; j < NUM_SONGS_AVAILABLE; j++) {
00413               if (GetTrackNumber(j) == y + 1) {
00414                 p[i] = j + 1;
00415                 break;
00416               }
00417             }
00418             p[i + 1] = 0;
00419             this->SetDirty();
00420             SelectSongToPlay();
00421             break;
00422           }
00423         }
00424       } break;
00425 
00426       case MTSW_LIST_RIGHT: { // remove from playlist
00427         int y = (pt.y - this->GetWidget<NWidgetBase>(widget)->pos_y) / FONT_HEIGHT_SMALL;
00428 
00429         if (msf.playlist < 4) return;
00430         if (!IsInsideMM(y, 0, NUM_SONGS_PLAYLIST)) return;
00431 
00432         byte *p = _playlists[msf.playlist];
00433         for (uint i = y; i != NUM_SONGS_PLAYLIST - 1; i++) {
00434           p[i] = p[i + 1];
00435         }
00436 
00437         this->SetDirty();
00438         SelectSongToPlay();
00439       } break;
00440 
00441       case MTSW_CLEAR: // clear
00442         for (uint i = 0; _playlists[msf.playlist][i] != 0; i++) _playlists[msf.playlist][i] = 0;
00443         this->SetDirty();
00444         StopMusic();
00445         SelectSongToPlay();
00446         break;
00447 
00448       case MTSW_ALL: case MTSW_OLD: case MTSW_NEW:
00449       case MTSW_EZY: case MTSW_CUSTOM1: case MTSW_CUSTOM2: // set playlist
00450         SelectPlaylist(widget - MTSW_ALL);
00451         StopMusic();
00452         SelectSongToPlay();
00453         break;
00454     }
00455   }
00456 };
00457 
00458 static const NWidgetPart _nested_music_track_selection_widgets[] = {
00459   NWidget(NWID_HORIZONTAL),
00460     NWidget(WWT_CLOSEBOX, COLOUR_GREY),
00461     NWidget(WWT_CAPTION, COLOUR_GREY), SetDataTip(STR_PLAYLIST_MUSIC_PROGRAM_SELECTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
00462   EndContainer(),
00463   NWidget(WWT_PANEL, COLOUR_GREY),
00464     NWidget(NWID_HORIZONTAL), SetPIP(2, 4, 2),
00465       /* Left panel. */
00466       NWidget(NWID_VERTICAL),
00467         NWidget(WWT_LABEL, COLOUR_GREY), SetDataTip(STR_PLAYLIST_TRACK_INDEX, STR_NULL),
00468         NWidget(WWT_PANEL, COLOUR_GREY, MTSW_LIST_LEFT), SetMinimalSize(180, 194), SetDataTip(0x0, STR_PLAYLIST_TOOLTIP_CLICK_TO_ADD_TRACK), EndContainer(),
00469         NWidget(NWID_SPACER), SetMinimalSize(0, 2),
00470       EndContainer(),
00471       /* Middle buttons. */
00472       NWidget(NWID_VERTICAL),
00473         NWidget(NWID_SPACER), SetMinimalSize(60, 30), // Space above the first button from the title bar.
00474         NWidget(WWT_TEXTBTN, COLOUR_GREY, MTSW_ALL), SetFill(1, 0), SetDataTip(STR_MUSIC_PLAYLIST_ALL, STR_MUSIC_TOOLTIP_SELECT_ALL_TRACKS_PROGRAM),
00475         NWidget(WWT_TEXTBTN, COLOUR_GREY, MTSW_OLD), SetFill(1, 0), SetDataTip(STR_MUSIC_PLAYLIST_OLD_STYLE, STR_MUSIC_TOOLTIP_SELECT_OLD_STYLE_MUSIC),
00476         NWidget(WWT_TEXTBTN, COLOUR_GREY, MTSW_NEW), SetFill(1, 0), SetDataTip(STR_MUSIC_PLAYLIST_NEW_STYLE, STR_MUSIC_TOOLTIP_SELECT_NEW_STYLE_MUSIC),
00477         NWidget(WWT_TEXTBTN, COLOUR_GREY, MTSW_EZY), SetFill(1, 0), SetDataTip(STR_MUSIC_PLAYLIST_EZY_STREET, STR_MUSIC_TOOLTIP_SELECT_EZY_STREET_STYLE),
00478         NWidget(WWT_TEXTBTN, COLOUR_GREY, MTSW_CUSTOM1), SetFill(1, 0), SetDataTip(STR_MUSIC_PLAYLIST_CUSTOM_1, STR_MUSIC_TOOLTIP_SELECT_CUSTOM_1_USER_DEFINED),
00479         NWidget(WWT_TEXTBTN, COLOUR_GREY, MTSW_CUSTOM2), SetFill(1, 0), SetDataTip(STR_MUSIC_PLAYLIST_CUSTOM_2, STR_MUSIC_TOOLTIP_SELECT_CUSTOM_2_USER_DEFINED),
00480         NWidget(NWID_SPACER), SetMinimalSize(0, 16), // Space above 'clear' button
00481         NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, MTSW_CLEAR), SetFill(1, 0), SetDataTip(STR_PLAYLIST_CLEAR, STR_PLAYLIST_TOOLTIP_CLEAR_CURRENT_PROGRAM_CUSTOM1),
00482         NWidget(NWID_SPACER), SetFill(0, 1),
00483       EndContainer(),
00484       /* Right panel. */
00485       NWidget(NWID_VERTICAL),
00486         NWidget(WWT_LABEL, COLOUR_GREY, MTSW_PLAYLIST), SetDataTip(STR_PLAYLIST_PROGRAM, STR_NULL),
00487         NWidget(WWT_PANEL, COLOUR_GREY, MTSW_LIST_RIGHT), SetMinimalSize(180, 194), SetDataTip(0x0, STR_PLAYLIST_TOOLTIP_CLICK_TO_REMOVE_TRACK), EndContainer(),
00488         NWidget(NWID_SPACER), SetMinimalSize(0, 2),
00489       EndContainer(),
00490     EndContainer(),
00491   EndContainer(),
00492 };
00493 
00494 static const WindowDesc _music_track_selection_desc(
00495   WDP_AUTO, 0, 0,
00496   WC_MUSIC_TRACK_SELECTION, WC_NONE,
00497   WDF_UNCLICK_BUTTONS,
00498   _nested_music_track_selection_widgets, lengthof(_nested_music_track_selection_widgets)
00499 );
00500 
00501 static void ShowMusicTrackSelection()
00502 {
00503   AllocateWindowDescFront<MusicTrackSelectionWindow>(&_music_track_selection_desc, 0);
00504 }
00505 
00506 enum MusicWidgets {
00507   MW_PREV,
00508   MW_NEXT,
00509   MW_STOP,
00510   MW_PLAY,
00511   MW_SLIDERS,
00512   MW_MUSIC_VOL,
00513   MW_GAUGE,
00514   MW_EFFECT_VOL,
00515   MW_BACKGROUND,
00516   MW_TRACK,
00517   MW_TRACK_NR,
00518   MW_TRACK_TITLE,
00519   MW_TRACK_NAME,
00520   MW_SHUFFLE,
00521   MW_PROGRAMME,
00522   MW_ALL,
00523   MW_OLD,
00524   MW_NEW,
00525   MW_EZY,
00526   MW_CUSTOM1,
00527   MW_CUSTOM2,
00528 };
00529 
00530 struct MusicWindow : public Window {
00531   static const int slider_width = 3;
00532 
00533   MusicWindow(const WindowDesc *desc, WindowNumber number) : Window()
00534   {
00535     this->InitNested(desc, number);
00536     this->LowerWidget(msf.playlist + MW_ALL);
00537     this->SetWidgetLoweredState(MW_SHUFFLE, msf.shuffle);
00538   }
00539 
00540   virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
00541   {
00542     switch (widget) {
00543       /* Make sure that MW_SHUFFLE and MW_PROGRAMME have the same size.
00544        * This can't be done by using NC_EQUALSIZE as the MW_INFO is
00545        * between those widgets and of different size. */
00546       case MW_SHUFFLE: case MW_PROGRAMME: {
00547         Dimension d = maxdim(GetStringBoundingBox(STR_MUSIC_PROGRAM), GetStringBoundingBox(STR_MUSIC_SHUFFLE));
00548         d.width += padding.width;
00549         d.height += padding.height;
00550         *size = maxdim(*size, d);
00551       } break;
00552 
00553       case MW_TRACK_NR: {
00554         Dimension d = GetStringBoundingBox(STR_MUSIC_TRACK_NONE);
00555         d.width += WD_FRAMERECT_LEFT + WD_FRAMERECT_RIGHT;
00556         d.height += WD_FRAMERECT_TOP + WD_FRAMERECT_BOTTOM;
00557         *size = maxdim(*size, d);
00558       } break;
00559 
00560       case MW_TRACK_NAME: {
00561         Dimension d = GetStringBoundingBox(STR_MUSIC_TITLE_NONE);
00562         for (uint i = 0; i < NUM_SONGS_AVAILABLE; i++) {
00563           SetDParamStr(0, GetSongName(i));
00564           d = maxdim(d, GetStringBoundingBox(STR_MUSIC_TITLE_NAME));
00565         }
00566         d.width += WD_FRAMERECT_LEFT + WD_FRAMERECT_RIGHT;
00567         d.height += WD_FRAMERECT_TOP + WD_FRAMERECT_BOTTOM;
00568         *size = maxdim(*size, d);
00569       } break;
00570 
00571       /* Hack-ish: set the proper widget data; only needs to be done once
00572        * per (Re)Init as that's the only time the language changes. */
00573       case MW_PREV: this->GetWidget<NWidgetCore>(MW_PREV)->widget_data = _dynlang.text_dir == TD_RTL ? SPR_IMG_SKIP_TO_NEXT : SPR_IMG_SKIP_TO_PREV; break;
00574       case MW_NEXT: this->GetWidget<NWidgetCore>(MW_NEXT)->widget_data = _dynlang.text_dir == TD_RTL ? SPR_IMG_SKIP_TO_PREV : SPR_IMG_SKIP_TO_NEXT; break;
00575       case MW_PLAY: this->GetWidget<NWidgetCore>(MW_PLAY)->widget_data = _dynlang.text_dir == TD_RTL ? SPR_IMG_PLAY_MUSIC_RTL : SPR_IMG_PLAY_MUSIC; break;
00576     }
00577   }
00578 
00579   virtual void DrawWidget(const Rect &r, int widget) const
00580   {
00581     switch (widget) {
00582       case MW_GAUGE:
00583         GfxFillRect(r.left, r.top, r.right, r.bottom, 0);
00584 
00585         for (uint i = 0; i != 8; i++) {
00586           int colour = 0xD0;
00587           if (i > 4) {
00588             colour = 0xBF;
00589             if (i > 6) {
00590               colour = 0xB8;
00591             }
00592           }
00593           GfxFillRect(r.left, r.bottom - i * 2, r.right, r.bottom - i * 2, colour);
00594         }
00595         break;
00596 
00597       case MW_TRACK_NR: {
00598         GfxFillRect(r.left + 1, r.top + 1, r.right, r.bottom, 0);
00599         StringID str = STR_MUSIC_TRACK_NONE;
00600         if (_song_is_active != 0 && _music_wnd_cursong != 0) {
00601           SetDParam(0, GetTrackNumber(_music_wnd_cursong - 1));
00602           SetDParam(1, 2);
00603           str = STR_MUSIC_TRACK_DIGIT;
00604         }
00605         DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, r.top + WD_FRAMERECT_TOP, str);
00606       } break;
00607 
00608       case MW_TRACK_NAME: {
00609         GfxFillRect(r.left, r.top + 1, r.right - 1, r.bottom, 0);
00610         StringID str = STR_MUSIC_TITLE_NONE;
00611         if (_song_is_active != 0 && _music_wnd_cursong != 0) {
00612           str = STR_MUSIC_TITLE_NAME;
00613           SetDParamStr(0, GetSongName(_music_wnd_cursong - 1));
00614         }
00615         DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, r.top + WD_FRAMERECT_TOP, str, TC_FROMSTRING, SA_CENTER);
00616       } break;
00617 
00618       case MW_MUSIC_VOL: case MW_EFFECT_VOL: {
00619         DrawFrameRect(r.left, r.top + 2, r.right, r.bottom - 2, COLOUR_GREY, FR_LOWERED);
00620         byte volume = (widget == MW_MUSIC_VOL) ? msf.music_vol : msf.effect_vol;
00621         int x = (volume * (r.right - r.left) / 127);
00622         if (_dynlang.text_dir == TD_RTL) {
00623           x = r.right - x;
00624         } else {
00625           x += r.left;
00626         }
00627         DrawFrameRect(x, r.top, x + slider_width, r.bottom, COLOUR_GREY, FR_NONE);
00628       } break;
00629     }
00630   }
00631 
00632   virtual void OnPaint()
00633   {
00634     this->DrawWidgets();
00635   }
00636 
00637   virtual void OnInvalidateData(int data = 0)
00638   {
00639     for (int i = 0; i < 6; i++) {
00640       this->SetWidgetLoweredState(MW_ALL + i, i == msf.playlist);
00641     }
00642     this->SetDirty();
00643   }
00644 
00645   virtual void OnClick(Point pt, int widget)
00646   {
00647     switch (widget) {
00648       case MW_PREV: // skip to prev
00649         if (!_song_is_active) return;
00650         SkipToPrevSong();
00651         this->SetDirty();
00652         break;
00653 
00654       case MW_NEXT: // skip to next
00655         if (!_song_is_active) return;
00656         SkipToNextSong();
00657         this->SetDirty();
00658         break;
00659 
00660       case MW_STOP: // stop playing
00661         msf.playing = false;
00662         break;
00663 
00664       case MW_PLAY: // start playing
00665         msf.playing = true;
00666         break;
00667 
00668       case MW_MUSIC_VOL: case MW_EFFECT_VOL: { // volume sliders
00669         int x = pt.x - this->GetWidget<NWidgetBase>(widget)->pos_x;
00670 
00671         byte *vol = (widget == MW_MUSIC_VOL) ? &msf.music_vol : &msf.effect_vol;
00672 
00673         byte new_vol = x * 127 / this->GetWidget<NWidgetBase>(widget)->current_x;
00674         if (_dynlang.text_dir == TD_RTL) new_vol = 127 - new_vol;
00675         if (new_vol != *vol) {
00676           *vol = new_vol;
00677           if (widget == MW_MUSIC_VOL) MusicVolumeChanged(new_vol);
00678           this->SetDirty();
00679         }
00680 
00681         _left_button_clicked = false;
00682       } break;
00683 
00684       case MW_SHUFFLE: // toggle shuffle
00685         msf.shuffle ^= 1;
00686         this->SetWidgetLoweredState(MW_SHUFFLE, msf.shuffle);
00687         this->SetWidgetDirty(MW_SHUFFLE);
00688         StopMusic();
00689         SelectSongToPlay();
00690         this->SetDirty();
00691         break;
00692 
00693       case MW_PROGRAMME: // show track selection
00694         ShowMusicTrackSelection();
00695         break;
00696 
00697       case MW_ALL: case MW_OLD: case MW_NEW:
00698       case MW_EZY: case MW_CUSTOM1: case MW_CUSTOM2: // playlist
00699         SelectPlaylist(widget - MW_ALL);
00700         StopMusic();
00701         SelectSongToPlay();
00702         this->SetDirty();
00703         break;
00704     }
00705   }
00706 
00707 #if 0
00708   virtual void OnTick()
00709   {
00710     this->SetWidgetDirty(MW_GAUGE);
00711   }
00712 #endif
00713 };
00714 
00715 static const NWidgetPart _nested_music_window_widgets[] = {
00716   NWidget(NWID_HORIZONTAL),
00717     NWidget(WWT_CLOSEBOX, COLOUR_GREY),
00718     NWidget(WWT_CAPTION, COLOUR_GREY), SetDataTip(STR_MUSIC_JAZZ_JUKEBOX_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
00719   EndContainer(),
00720 
00721   NWidget(NWID_HORIZONTAL),
00722     NWidget(NWID_VERTICAL),
00723       NWidget(WWT_PANEL, COLOUR_GREY, -1), SetFill(1, 1), EndContainer(),
00724       NWidget(NWID_HORIZONTAL),
00725         NWidget(WWT_PUSHIMGBTN, COLOUR_GREY, MW_PREV), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_SKIP_TO_PREV, STR_MUSIC_TOOLTIP_SKIP_TO_PREVIOUS_TRACK),
00726         NWidget(WWT_PUSHIMGBTN, COLOUR_GREY, MW_NEXT), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_SKIP_TO_NEXT, STR_MUSIC_TOOLTIP_SKIP_TO_NEXT_TRACK_IN_SELECTION),
00727         NWidget(WWT_PUSHIMGBTN, COLOUR_GREY, MW_STOP), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_STOP_MUSIC, STR_MUSIC_TOOLTIP_STOP_PLAYING_MUSIC),
00728         NWidget(WWT_PUSHIMGBTN, COLOUR_GREY, MW_PLAY), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_PLAY_MUSIC, STR_MUSIC_TOOLTIP_START_PLAYING_MUSIC),
00729       EndContainer(),
00730       NWidget(WWT_PANEL, COLOUR_GREY, -1), SetFill(1, 1), EndContainer(),
00731     EndContainer(),
00732     NWidget(WWT_PANEL, COLOUR_GREY, MW_SLIDERS),
00733       NWidget(NWID_HORIZONTAL), SetPIP(20, 0, 20),
00734         NWidget(NWID_VERTICAL),
00735           NWidget(WWT_LABEL, COLOUR_GREY, -1), SetFill(1, 0), SetDataTip(STR_MUSIC_MUSIC_VOLUME, STR_NULL),
00736           NWidget(WWT_EMPTY, COLOUR_GREY, MW_MUSIC_VOL), SetMinimalSize(67, 0), SetMinimalTextLines(1, 0), SetFill(1, 0), SetDataTip(0x0, STR_MUSIC_TOOLTIP_DRAG_SLIDERS_TO_SET_MUSIC),
00737           NWidget(NWID_HORIZONTAL),
00738             NWidget(WWT_LABEL, COLOUR_GREY, -1), SetDataTip(STR_MUSIC_RULER_MIN, STR_NULL),
00739             NWidget(WWT_LABEL, COLOUR_GREY, -1), SetDataTip(STR_MUSIC_RULER_MARKER, STR_NULL), SetFill(1, 0),
00740             NWidget(WWT_LABEL, COLOUR_GREY, -1), SetDataTip(STR_MUSIC_RULER_MARKER, STR_NULL), SetFill(1, 0),
00741             NWidget(WWT_LABEL, COLOUR_GREY, -1), SetDataTip(STR_MUSIC_RULER_MARKER, STR_NULL), SetFill(1, 0),
00742             NWidget(WWT_LABEL, COLOUR_GREY, -1), SetDataTip(STR_MUSIC_RULER_MARKER, STR_NULL), SetFill(1, 0),
00743             NWidget(WWT_LABEL, COLOUR_GREY, -1), SetDataTip(STR_MUSIC_RULER_MARKER, STR_NULL), SetFill(1, 0),
00744             NWidget(WWT_LABEL, COLOUR_GREY, -1), SetDataTip(STR_MUSIC_RULER_MAX, STR_NULL),
00745           EndContainer(),
00746         EndContainer(),
00747         NWidget(WWT_PANEL, COLOUR_GREY, MW_GAUGE), SetMinimalSize(16, 20), SetPadding(1, 11, 1, 11), SetFill(0, 0), EndContainer(),
00748         NWidget(NWID_VERTICAL),
00749           NWidget(WWT_LABEL, COLOUR_GREY, -1), SetFill(1, 0), SetDataTip(STR_MUSIC_EFFECTS_VOLUME, STR_NULL),
00750           NWidget(WWT_EMPTY, COLOUR_GREY, MW_EFFECT_VOL), SetMinimalSize(67, 0), SetMinimalTextLines(1, 0), SetFill(1, 0), SetDataTip(0x0, STR_MUSIC_TOOLTIP_DRAG_SLIDERS_TO_SET_MUSIC),
00751           NWidget(NWID_HORIZONTAL),
00752             NWidget(WWT_LABEL, COLOUR_GREY, -1), SetDataTip(STR_MUSIC_RULER_MIN, STR_NULL),
00753             NWidget(WWT_LABEL, COLOUR_GREY, -1), SetDataTip(STR_MUSIC_RULER_MARKER, STR_NULL), SetFill(1, 0),
00754             NWidget(WWT_LABEL, COLOUR_GREY, -1), SetDataTip(STR_MUSIC_RULER_MARKER, STR_NULL), SetFill(1, 0),
00755             NWidget(WWT_LABEL, COLOUR_GREY, -1), SetDataTip(STR_MUSIC_RULER_MARKER, STR_NULL), SetFill(1, 0),
00756             NWidget(WWT_LABEL, COLOUR_GREY, -1), SetDataTip(STR_MUSIC_RULER_MARKER, STR_NULL), SetFill(1, 0),
00757             NWidget(WWT_LABEL, COLOUR_GREY, -1), SetDataTip(STR_MUSIC_RULER_MARKER, STR_NULL), SetFill(1, 0),
00758             NWidget(WWT_LABEL, COLOUR_GREY, -1), SetDataTip(STR_MUSIC_RULER_MAX, STR_NULL),
00759           EndContainer(),
00760         EndContainer(),
00761       EndContainer(),
00762     EndContainer(),
00763   EndContainer(),
00764   NWidget(WWT_PANEL, COLOUR_GREY, MW_BACKGROUND),
00765     NWidget(NWID_HORIZONTAL), SetPIP(6, 0, 6),
00766       NWidget(NWID_VERTICAL),
00767         NWidget(NWID_SPACER), SetFill(0, 1),
00768         NWidget(WWT_TEXTBTN, COLOUR_GREY, MW_SHUFFLE), SetMinimalSize(50, 8), SetDataTip(STR_MUSIC_SHUFFLE, STR_MUSIC_TOOLTIP_TOGGLE_PROGRAM_SHUFFLE),
00769         NWidget(NWID_SPACER), SetFill(0, 1),
00770       EndContainer(),
00771       NWidget(NWID_VERTICAL), SetPadding(0, 0, 3, 3),
00772         NWidget(WWT_LABEL, COLOUR_GREY, MW_TRACK), SetFill(0, 0), SetDataTip(STR_MUSIC_TRACK, STR_NULL),
00773         NWidget(WWT_PANEL, COLOUR_GREY, MW_TRACK_NR), EndContainer(),
00774       EndContainer(),
00775       NWidget(NWID_VERTICAL), SetPadding(0, 3, 3, 0),
00776         NWidget(WWT_LABEL, COLOUR_GREY, MW_TRACK_TITLE), SetFill(1, 0), SetDataTip(STR_MUSIC_XTITLE, STR_NULL),
00777         NWidget(WWT_PANEL, COLOUR_GREY, MW_TRACK_NAME), SetFill(1, 0), EndContainer(),
00778       EndContainer(),
00779       NWidget(NWID_VERTICAL),
00780         NWidget(NWID_SPACER), SetFill(0, 1),
00781         NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, MW_PROGRAMME), SetMinimalSize(50, 8), SetDataTip(STR_MUSIC_PROGRAM, STR_MUSIC_TOOLTIP_SHOW_MUSIC_TRACK_SELECTION),
00782         NWidget(NWID_SPACER), SetFill(0, 1),
00783       EndContainer(),
00784     EndContainer(),
00785   EndContainer(),
00786   NWidget(NWID_HORIZONTAL, NC_EQUALSIZE),
00787     NWidget(WWT_TEXTBTN, COLOUR_GREY, MW_ALL), SetFill(1, 0), SetDataTip(STR_MUSIC_PLAYLIST_ALL, STR_MUSIC_TOOLTIP_SELECT_ALL_TRACKS_PROGRAM),
00788     NWidget(WWT_TEXTBTN, COLOUR_GREY, MW_OLD), SetFill(1, 0), SetDataTip(STR_MUSIC_PLAYLIST_OLD_STYLE, STR_MUSIC_TOOLTIP_SELECT_OLD_STYLE_MUSIC),
00789     NWidget(WWT_TEXTBTN, COLOUR_GREY, MW_NEW), SetFill(1, 0), SetDataTip(STR_MUSIC_PLAYLIST_NEW_STYLE, STR_MUSIC_TOOLTIP_SELECT_NEW_STYLE_MUSIC),
00790     NWidget(WWT_TEXTBTN, COLOUR_GREY, MW_EZY), SetFill(1, 0), SetDataTip(STR_MUSIC_PLAYLIST_EZY_STREET, STR_MUSIC_TOOLTIP_SELECT_EZY_STREET_STYLE),
00791     NWidget(WWT_TEXTBTN, COLOUR_GREY, MW_CUSTOM1), SetFill(1, 0), SetDataTip(STR_MUSIC_PLAYLIST_CUSTOM_1, STR_MUSIC_TOOLTIP_SELECT_CUSTOM_1_USER_DEFINED),
00792     NWidget(WWT_TEXTBTN, COLOUR_GREY, MW_CUSTOM2), SetFill(1, 0), SetDataTip(STR_MUSIC_PLAYLIST_CUSTOM_2, STR_MUSIC_TOOLTIP_SELECT_CUSTOM_2_USER_DEFINED),
00793   EndContainer(),
00794 };
00795 
00796 static const WindowDesc _music_window_desc(
00797   WDP_AUTO, 0, 0,
00798   WC_MUSIC_WINDOW, WC_NONE,
00799   WDF_UNCLICK_BUTTONS,
00800   _nested_music_window_widgets, lengthof(_nested_music_window_widgets)
00801 );
00802 
00803 void ShowMusicWindow()
00804 {
00805   if (BaseMusic::GetUsedSet()->num_available == 0) ShowErrorMessage(STR_ERROR_NO_SONGS, INVALID_STRING_ID, 0, 0);
00806   AllocateWindowDescFront<MusicWindow>(&_music_window_desc, 0);
00807 }

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