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settings_gui.cpp
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settings_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/>.
*/
/** @file settings_gui.cpp GUI for settings. */
#include "stdafx.h"
#include "currency.h"
#include "error.h"
#include "settings_gui.h"
#include "textbuf_gui.h"
#include "command_func.h"
#include "network/network.h"
#include "town.h"
#include "settings_internal.h"
#include "strings_func.h"
#include "window_func.h"
#include "string_func.h"
#include "widgets/dropdown_type.h"
#include "widgets/dropdown_func.h"
#include "widgets/slider_func.h"
#include "highscore.h"
#include "base_media_base.h"
#include "company_base.h"
#include "company_func.h"
#include "viewport_func.h"
#include "core/geometry_func.hpp"
#include "ai/ai.hpp"
#include "blitter/factory.hpp"
#include "language.h"
#include "textfile_gui.h"
#include "stringfilter_type.h"
#include "querystring_gui.h"
#include "fontcache.h"
#include "zoom_func.h"
#include "rev.h"
#include "video/video_driver.hpp"
#include "music/music_driver.hpp"
#include <vector>
#include <iterator>
#include "safeguards.h"
#include "video/video_driver.hpp"
static const StringID _autosave_dropdown[] = {
STR_GAME_OPTIONS_AUTOSAVE_DROPDOWN_OFF,
STR_GAME_OPTIONS_AUTOSAVE_DROPDOWN_EVERY_1_MONTH,
STR_GAME_OPTIONS_AUTOSAVE_DROPDOWN_EVERY_3_MONTHS,
STR_GAME_OPTIONS_AUTOSAVE_DROPDOWN_EVERY_6_MONTHS,
STR_GAME_OPTIONS_AUTOSAVE_DROPDOWN_EVERY_12_MONTHS,
INVALID_STRING_ID,
};
static const StringID _gui_zoom_dropdown[] = {
STR_GAME_OPTIONS_GUI_ZOOM_DROPDOWN_AUTO,
STR_GAME_OPTIONS_GUI_ZOOM_DROPDOWN_NORMAL,
STR_GAME_OPTIONS_GUI_ZOOM_DROPDOWN_2X_ZOOM,
STR_GAME_OPTIONS_GUI_ZOOM_DROPDOWN_4X_ZOOM,
INVALID_STRING_ID,
};
static const StringID _font_zoom_dropdown[] = {
STR_GAME_OPTIONS_FONT_ZOOM_DROPDOWN_AUTO,
STR_GAME_OPTIONS_FONT_ZOOM_DROPDOWN_NORMAL,
STR_GAME_OPTIONS_FONT_ZOOM_DROPDOWN_2X_ZOOM,
STR_GAME_OPTIONS_FONT_ZOOM_DROPDOWN_4X_ZOOM,
INVALID_STRING_ID,
};
static Dimension _circle_size; ///< Dimension of the circle +/- icon. This is here as not all users are within the class of the settings window.
static const void *ResolveObject(const GameSettings *settings_ptr, const IntSettingDesc *sd);
/**
* Get index of the current screen resolution.
* @return Index of the current screen resolution if it is a known resolution, _resolutions.size() otherwise.
*/
static uint GetCurrentResolutionIndex()
{
auto it = std::find(_resolutions.begin(), _resolutions.end(), Dimension(_screen.width, _screen.height));
return std::distance(_resolutions.begin(), it);
}
static void ShowCustCurrency();
template <class T>
static DropDownList BuildSetDropDownList(int *selected_index, bool allow_selection)
{
int n = T::GetNumSets();
*selected_index = T::GetIndexOfUsedSet();
DropDownList list;
for (int i = 0; i < n; i++) {
list.emplace_back(new DropDownListCharStringItem(T::GetSet(i)->name, i, !allow_selection && (*selected_index != i)));
}
return list;
}
DropDownList BuildMusicSetDropDownList(int *selected_index)
{
return BuildSetDropDownList<BaseMusic>(selected_index, true);
}
/** Window for displaying the textfile of a BaseSet. */
template <class TBaseSet>
struct BaseSetTextfileWindow : public TextfileWindow {
const TBaseSet* baseset; ///< View the textfile of this BaseSet.
StringID content_type; ///< STR_CONTENT_TYPE_xxx for title.
BaseSetTextfileWindow(TextfileType file_type, const TBaseSet* baseset, StringID content_type) : TextfileWindow(file_type), baseset(baseset), content_type(content_type)
{
const char *textfile = this->baseset->GetTextfile(file_type);
this->LoadTextfile(textfile, BASESET_DIR);
}
void SetStringParameters(int widget) const override
{
if (widget == WID_TF_CAPTION) {
SetDParam(0, content_type);
SetDParamStr(1, this->baseset->name);
}
}
};
/**
* Open the BaseSet version of the textfile window.
* @param file_type The type of textfile to display.
* @param baseset The BaseSet to use.
* @param content_type STR_CONTENT_TYPE_xxx for title.
*/
template <class TBaseSet>
void ShowBaseSetTextfileWindow(TextfileType file_type, const TBaseSet* baseset, StringID content_type)
{
CloseWindowById(WC_TEXTFILE, file_type);
new BaseSetTextfileWindow<TBaseSet>(file_type, baseset, content_type);
}
std::set<int> _refresh_rates = { 30, 60, 75, 90, 100, 120, 144, 240 };
/**
* Add the refresh rate from the config and the refresh rates from all the monitors to
* our list of refresh rates shown in the GUI.
*/
static void AddCustomRefreshRates()
{
/* Add the refresh rate as selected in the config. */
_refresh_rates.insert(_settings_client.gui.refresh_rate);
/* Add all the refresh rates of all monitors connected to the machine. */
std::vector<int> monitorRates = VideoDriver::GetInstance()->GetListOfMonitorRefreshRates();
std::copy(monitorRates.begin(), monitorRates.end(), std::inserter(_refresh_rates, _refresh_rates.end()));
}
struct GameOptionsWindow : Window {
GameSettings *opt;
bool reload;
GameOptionsWindow(WindowDesc *desc) : Window(desc)
{
this->opt = &GetGameSettings();
this->reload = false;
AddCustomRefreshRates();
this->InitNested(WN_GAME_OPTIONS_GAME_OPTIONS);
this->OnInvalidateData(0);
}
void Close() override
{
CloseWindowById(WC_CUSTOM_CURRENCY, 0);
CloseWindowByClass(WC_TEXTFILE);
if (this->reload) _switch_mode = SM_MENU;
this->Window::Close();
}
/**
* Build the dropdown list for a specific widget.
* @param widget Widget to build list for
* @param selected_index Currently selected item
* @return the built dropdown list, or nullptr if the widget has no dropdown menu.
*/
DropDownList BuildDropDownList(int widget, int *selected_index) const
{
DropDownList list;
switch (widget) {
case WID_GO_CURRENCY_DROPDOWN: { // Setup currencies dropdown
*selected_index = this->opt->locale.currency;
StringID *items = BuildCurrencyDropdown();
uint64 disabled = _game_mode == GM_MENU ? 0LL : ~GetMaskOfAllowedCurrencies();
/* Add non-custom currencies; sorted naturally */
for (uint i = 0; i < CURRENCY_END; items++, i++) {
if (i == CURRENCY_CUSTOM) continue;
list.emplace_back(new DropDownListStringItem(*items, i, HasBit(disabled, i)));
}
std::sort(list.begin(), list.end(), DropDownListStringItem::NatSortFunc);
/* Append custom currency at the end */
list.emplace_back(new DropDownListItem(-1, false)); // separator line
list.emplace_back(new DropDownListStringItem(STR_GAME_OPTIONS_CURRENCY_CUSTOM, CURRENCY_CUSTOM, HasBit(disabled, CURRENCY_CUSTOM)));
break;
}
case WID_GO_AUTOSAVE_DROPDOWN: { // Setup autosave dropdown
*selected_index = _settings_client.gui.autosave;
const StringID *items = _autosave_dropdown;
for (uint i = 0; *items != INVALID_STRING_ID; items++, i++) {
list.emplace_back(new DropDownListStringItem(*items, i, false));
}
break;
}
case WID_GO_LANG_DROPDOWN: { // Setup interface language dropdown
for (uint i = 0; i < _languages.size(); i++) {
bool hide_language = IsReleasedVersion() && !_languages[i].IsReasonablyFinished();
if (hide_language) continue;
bool hide_percentage = IsReleasedVersion() || _languages[i].missing < _settings_client.gui.missing_strings_threshold;
auto item = new DropDownListParamStringItem(hide_percentage ? STR_JUST_RAW_STRING : STR_GAME_OPTIONS_LANGUAGE_PERCENTAGE, i, false);
if (&_languages[i] == _current_language) {
*selected_index = i;
item->SetParamStr(0, _languages[i].own_name);
} else {
/* Especially with sprite-fonts, not all localized
* names can be rendered. So instead, we use the
* international names for anything but the current
* selected language. This avoids showing a few ????
* entries in the dropdown list. */
item->SetParamStr(0, _languages[i].name);
}
item->SetParam(1, (LANGUAGE_TOTAL_STRINGS - _languages[i].missing) * 100 / LANGUAGE_TOTAL_STRINGS);
list.emplace_back(item);
}
std::sort(list.begin(), list.end(), DropDownListStringItem::NatSortFunc);
break;
}
case WID_GO_RESOLUTION_DROPDOWN: // Setup resolution dropdown
if (_resolutions.empty()) break;
*selected_index = GetCurrentResolutionIndex();
for (uint i = 0; i < _resolutions.size(); i++) {
auto item = new DropDownListParamStringItem(STR_GAME_OPTIONS_RESOLUTION_ITEM, i, false);
item->SetParam(0, _resolutions[i].width);
item->SetParam(1, _resolutions[i].height);
list.emplace_back(item);
}
break;
case WID_GO_REFRESH_RATE_DROPDOWN: // Setup refresh rate dropdown
for (auto it = _refresh_rates.begin(); it != _refresh_rates.end(); it++) {
auto i = std::distance(_refresh_rates.begin(), it);
if (*it == _settings_client.gui.refresh_rate) *selected_index = i;
auto item = new DropDownListParamStringItem(STR_GAME_OPTIONS_REFRESH_RATE_ITEM, i, false);
item->SetParam(0, *it);
list.emplace_back(item);
}
break;
case WID_GO_GUI_ZOOM_DROPDOWN: {
*selected_index = _gui_zoom_cfg != ZOOM_LVL_CFG_AUTO ? ZOOM_LVL_OUT_4X - _gui_zoom + 1 : 0;
const StringID *items = _gui_zoom_dropdown;
for (int i = 0; *items != INVALID_STRING_ID; items++, i++) {
list.emplace_back(new DropDownListStringItem(*items, i, i != 0 && _settings_client.gui.zoom_min > ZOOM_LVL_OUT_4X - i + 1));
}
break;
}
case WID_GO_FONT_ZOOM_DROPDOWN: {
*selected_index = _font_zoom_cfg != ZOOM_LVL_CFG_AUTO ? ZOOM_LVL_OUT_4X - _font_zoom + 1 : 0;
const StringID *items = _font_zoom_dropdown;
for (int i = 0; *items != INVALID_STRING_ID; items++, i++) {
list.emplace_back(new DropDownListStringItem(*items, i, false));
}
break;
}
case WID_GO_BASE_GRF_DROPDOWN:
list = BuildSetDropDownList<BaseGraphics>(selected_index, (_game_mode == GM_MENU));
break;
case WID_GO_BASE_SFX_DROPDOWN:
list = BuildSetDropDownList<BaseSounds>(selected_index, (_game_mode == GM_MENU));
break;
case WID_GO_BASE_MUSIC_DROPDOWN:
list = BuildMusicSetDropDownList(selected_index);
break;
}
return list;
}
void SetStringParameters(int widget) const override
{
switch (widget) {
case WID_GO_CURRENCY_DROPDOWN: SetDParam(0, _currency_specs[this->opt->locale.currency].name); break;
case WID_GO_AUTOSAVE_DROPDOWN: SetDParam(0, _autosave_dropdown[_settings_client.gui.autosave]); break;
case WID_GO_LANG_DROPDOWN: SetDParamStr(0, _current_language->own_name); break;
case WID_GO_GUI_ZOOM_DROPDOWN: SetDParam(0, _gui_zoom_dropdown[_gui_zoom_cfg != ZOOM_LVL_CFG_AUTO ? ZOOM_LVL_OUT_4X - _gui_zoom_cfg + 1 : 0]); break;
case WID_GO_FONT_ZOOM_DROPDOWN: SetDParam(0, _font_zoom_dropdown[_font_zoom_cfg != ZOOM_LVL_CFG_AUTO ? ZOOM_LVL_OUT_4X - _font_zoom_cfg + 1 : 0]); break;
case WID_GO_BASE_GRF_DROPDOWN: SetDParamStr(0, BaseGraphics::GetUsedSet()->name); break;
case WID_GO_BASE_GRF_STATUS: SetDParam(0, BaseGraphics::GetUsedSet()->GetNumInvalid()); break;
case WID_GO_BASE_SFX_DROPDOWN: SetDParamStr(0, BaseSounds::GetUsedSet()->name); break;
case WID_GO_BASE_MUSIC_DROPDOWN: SetDParamStr(0, BaseMusic::GetUsedSet()->name); break;
case WID_GO_BASE_MUSIC_STATUS: SetDParam(0, BaseMusic::GetUsedSet()->GetNumInvalid()); break;
case WID_GO_REFRESH_RATE_DROPDOWN: SetDParam(0, _settings_client.gui.refresh_rate); break;
case WID_GO_RESOLUTION_DROPDOWN: {
auto current_resolution = GetCurrentResolutionIndex();
if (current_resolution == _resolutions.size()) {
SetDParam(0, STR_GAME_OPTIONS_RESOLUTION_OTHER);
} else {
SetDParam(0, STR_GAME_OPTIONS_RESOLUTION_ITEM);
SetDParam(1, _resolutions[current_resolution].width);
SetDParam(2, _resolutions[current_resolution].height);
}
break;
}
}
}
void DrawWidget(const Rect &r, int widget) const override
{
switch (widget) {
case WID_GO_BASE_GRF_DESCRIPTION:
SetDParamStr(0, BaseGraphics::GetUsedSet()->GetDescription(GetCurrentLanguageIsoCode()));
DrawStringMultiLine(r.left, r.right, r.top, UINT16_MAX, STR_BLACK_RAW_STRING);
break;
case WID_GO_BASE_SFX_DESCRIPTION:
SetDParamStr(0, BaseSounds::GetUsedSet()->GetDescription(GetCurrentLanguageIsoCode()));
DrawStringMultiLine(r.left, r.right, r.top, UINT16_MAX, STR_BLACK_RAW_STRING);
break;
case WID_GO_BASE_MUSIC_DESCRIPTION:
SetDParamStr(0, BaseMusic::GetUsedSet()->GetDescription(GetCurrentLanguageIsoCode()));
DrawStringMultiLine(r.left, r.right, r.top, UINT16_MAX, STR_BLACK_RAW_STRING);
break;
case WID_GO_BASE_SFX_VOLUME:
DrawVolumeSliderWidget(r, _settings_client.music.effect_vol);
break;
case WID_GO_BASE_MUSIC_VOLUME:
DrawVolumeSliderWidget(r, _settings_client.music.music_vol);
break;
}
}
void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize) override
{
switch (widget) {
case WID_GO_BASE_GRF_DESCRIPTION:
/* Find the biggest description for the default size. */
for (int i = 0; i < BaseGraphics::GetNumSets(); i++) {
SetDParamStr(0, BaseGraphics::GetSet(i)->GetDescription(GetCurrentLanguageIsoCode()));
size->height = std::max(size->height, (uint)GetStringHeight(STR_BLACK_RAW_STRING, size->width));
}
break;
case WID_GO_BASE_GRF_STATUS:
/* Find the biggest description for the default size. */
for (int i = 0; i < BaseGraphics::GetNumSets(); i++) {
uint invalid_files = BaseGraphics::GetSet(i)->GetNumInvalid();
if (invalid_files == 0) continue;
SetDParam(0, invalid_files);
*size = maxdim(*size, GetStringBoundingBox(STR_GAME_OPTIONS_BASE_GRF_STATUS));
}
break;
case WID_GO_BASE_SFX_DESCRIPTION:
/* Find the biggest description for the default size. */
for (int i = 0; i < BaseSounds::GetNumSets(); i++) {
SetDParamStr(0, BaseSounds::GetSet(i)->GetDescription(GetCurrentLanguageIsoCode()));
size->height = std::max(size->height, (uint)GetStringHeight(STR_BLACK_RAW_STRING, size->width));
}
break;
case WID_GO_BASE_MUSIC_DESCRIPTION:
/* Find the biggest description for the default size. */
for (int i = 0; i < BaseMusic::GetNumSets(); i++) {
SetDParamStr(0, BaseMusic::GetSet(i)->GetDescription(GetCurrentLanguageIsoCode()));
size->height = std::max(size->height, (uint)GetStringHeight(STR_BLACK_RAW_STRING, size->width));
}
break;
case WID_GO_BASE_MUSIC_STATUS:
/* Find the biggest description for the default size. */
for (int i = 0; i < BaseMusic::GetNumSets(); i++) {
uint invalid_files = BaseMusic::GetSet(i)->GetNumInvalid();
if (invalid_files == 0) continue;
SetDParam(0, invalid_files);
*size = maxdim(*size, GetStringBoundingBox(STR_GAME_OPTIONS_BASE_MUSIC_STATUS));
}
break;
default: {
int selected;
DropDownList list = this->BuildDropDownList(widget, &selected);
if (!list.empty()) {
/* Find the biggest item for the default size. */
for (const auto &ddli : list) {
Dimension string_dim;
int width = ddli->Width();
string_dim.width = width + padding.width;
string_dim.height = ddli->Height(width) + padding.height;
*size = maxdim(*size, string_dim);
}
}
}
}
}
void OnClick(Point pt, int widget, int click_count) override
{
if (widget >= WID_GO_BASE_GRF_TEXTFILE && widget < WID_GO_BASE_GRF_TEXTFILE + TFT_END) {
if (BaseGraphics::GetUsedSet() == nullptr) return;
ShowBaseSetTextfileWindow((TextfileType)(widget - WID_GO_BASE_GRF_TEXTFILE), BaseGraphics::GetUsedSet(), STR_CONTENT_TYPE_BASE_GRAPHICS);
return;
}
if (widget >= WID_GO_BASE_SFX_TEXTFILE && widget < WID_GO_BASE_SFX_TEXTFILE + TFT_END) {
if (BaseSounds::GetUsedSet() == nullptr) return;
ShowBaseSetTextfileWindow((TextfileType)(widget - WID_GO_BASE_SFX_TEXTFILE), BaseSounds::GetUsedSet(), STR_CONTENT_TYPE_BASE_SOUNDS);
return;
}
if (widget >= WID_GO_BASE_MUSIC_TEXTFILE && widget < WID_GO_BASE_MUSIC_TEXTFILE + TFT_END) {
if (BaseMusic::GetUsedSet() == nullptr) return;
ShowBaseSetTextfileWindow((TextfileType)(widget - WID_GO_BASE_MUSIC_TEXTFILE), BaseMusic::GetUsedSet(), STR_CONTENT_TYPE_BASE_MUSIC);
return;
}
switch (widget) {
case WID_GO_FULLSCREEN_BUTTON: // Click fullscreen on/off
/* try to toggle full-screen on/off */
if (!ToggleFullScreen(!_fullscreen)) {
ShowErrorMessage(STR_ERROR_FULLSCREEN_FAILED, INVALID_STRING_ID, WL_ERROR);
}
this->SetWidgetLoweredState(WID_GO_FULLSCREEN_BUTTON, _fullscreen);
this->SetWidgetDirty(WID_GO_FULLSCREEN_BUTTON);
break;
case WID_GO_VIDEO_ACCEL_BUTTON:
_video_hw_accel = !_video_hw_accel;
ShowErrorMessage(STR_GAME_OPTIONS_VIDEO_ACCELERATION_RESTART, INVALID_STRING_ID, WL_INFO);
this->SetWidgetLoweredState(WID_GO_VIDEO_ACCEL_BUTTON, _video_hw_accel);
this->SetWidgetDirty(WID_GO_VIDEO_ACCEL_BUTTON);
#ifndef __APPLE__
this->SetWidgetDisabledState(WID_GO_VIDEO_VSYNC_BUTTON, !_video_hw_accel);
this->SetWidgetDirty(WID_GO_VIDEO_VSYNC_BUTTON);
#endif
break;
case WID_GO_VIDEO_VSYNC_BUTTON:
if (!_video_hw_accel) break;
_video_vsync = !_video_vsync;
VideoDriver::GetInstance()->ToggleVsync(_video_vsync);
this->SetWidgetLoweredState(WID_GO_VIDEO_VSYNC_BUTTON, _video_vsync);
this->SetWidgetDirty(WID_GO_VIDEO_VSYNC_BUTTON);
break;
case WID_GO_BASE_SFX_VOLUME:
case WID_GO_BASE_MUSIC_VOLUME: {
byte &vol = (widget == WID_GO_BASE_MUSIC_VOLUME) ? _settings_client.music.music_vol : _settings_client.music.effect_vol;
if (ClickVolumeSliderWidget(this->GetWidget<NWidgetBase>(widget)->GetCurrentRect(), pt, vol)) {
if (widget == WID_GO_BASE_MUSIC_VOLUME) MusicDriver::GetInstance()->SetVolume(vol);
this->SetWidgetDirty(widget);
SetWindowClassesDirty(WC_MUSIC_WINDOW);
}
if (click_count > 0) this->mouse_capture_widget = widget;
break;
}
default: {
int selected;
DropDownList list = this->BuildDropDownList(widget, &selected);
if (!list.empty()) {
ShowDropDownList(this, std::move(list), selected, widget);
} else {
if (widget == WID_GO_RESOLUTION_DROPDOWN) ShowErrorMessage(STR_ERROR_RESOLUTION_LIST_FAILED, INVALID_STRING_ID, WL_ERROR);
}
break;
}
}
}
/**
* Set the base media set.
* @param index the index of the media set
* @tparam T class of media set
*/
template <class T>
void SetMediaSet(int index)
{
if (_game_mode == GM_MENU) {
auto name = T::GetSet(index)->name;
T::ini_set = name;
T::SetSet(name);
this->reload = true;
this->InvalidateData();
}
}
void OnDropdownSelect(int widget, int index) override
{
switch (widget) {
case WID_GO_CURRENCY_DROPDOWN: // Currency
if (index == CURRENCY_CUSTOM) ShowCustCurrency();
this->opt->locale.currency = index;
ReInitAllWindows(false);
break;
case WID_GO_AUTOSAVE_DROPDOWN: // Autosave options
_settings_client.gui.autosave = index;
this->SetDirty();
break;
case WID_GO_LANG_DROPDOWN: // Change interface language
ReadLanguagePack(&_languages[index]);
CloseWindowByClass(WC_QUERY_STRING);
CheckForMissingGlyphs();
ClearAllCachedNames();
UpdateAllVirtCoords();
CheckBlitter();
ReInitAllWindows(false);
break;
case WID_GO_RESOLUTION_DROPDOWN: // Change resolution
if ((uint)index < _resolutions.size() && ChangeResInGame(_resolutions[index].width, _resolutions[index].height)) {
this->SetDirty();
}
break;
case WID_GO_REFRESH_RATE_DROPDOWN: {
_settings_client.gui.refresh_rate = *std::next(_refresh_rates.begin(), index);
if (_settings_client.gui.refresh_rate > 60) {
/* Show warning to the user that this refresh rate might not be suitable on
* larger maps with many NewGRFs and vehicles. */
ShowErrorMessage(STR_GAME_OPTIONS_REFRESH_RATE_WARNING, INVALID_STRING_ID, WL_INFO);
}
break;
}
case WID_GO_GUI_ZOOM_DROPDOWN: {
int8 new_zoom = index > 0 ? ZOOM_LVL_OUT_4X - index + 1 : ZOOM_LVL_CFG_AUTO;
if (new_zoom != _gui_zoom_cfg) {
GfxClearSpriteCache();
_gui_zoom_cfg = new_zoom;
UpdateGUIZoom();
UpdateCursorSize();
UpdateAllVirtCoords();
FixTitleGameZoom();
ReInitAllWindows(true);
}
break;
}
case WID_GO_FONT_ZOOM_DROPDOWN: {
int8 new_zoom = index > 0 ? ZOOM_LVL_OUT_4X - index + 1 : ZOOM_LVL_CFG_AUTO;
if (new_zoom != _font_zoom_cfg) {
GfxClearSpriteCache();
_font_zoom_cfg = new_zoom;
UpdateGUIZoom();
ClearFontCache();
LoadStringWidthTable();
UpdateAllVirtCoords();
ReInitAllWindows(true);
}
break;
}
case WID_GO_BASE_GRF_DROPDOWN:
this->SetMediaSet<BaseGraphics>(index);
break;
case WID_GO_BASE_SFX_DROPDOWN:
this->SetMediaSet<BaseSounds>(index);
break;
case WID_GO_BASE_MUSIC_DROPDOWN:
ChangeMusicSet(index);
break;
}
}
/**
* Some data on this window has become invalid.
* @param data Information about the changed data. @see GameOptionsInvalidationData
* @param gui_scope Whether the call is done from GUI scope. You may not do everything when not in GUI scope. See #InvalidateWindowData() for details.
*/
void OnInvalidateData(int data = 0, bool gui_scope = true) override
{
if (!gui_scope) return;
this->SetWidgetLoweredState(WID_GO_FULLSCREEN_BUTTON, _fullscreen);
this->SetWidgetLoweredState(WID_GO_VIDEO_ACCEL_BUTTON, _video_hw_accel);
#ifndef __APPLE__
this->SetWidgetLoweredState(WID_GO_VIDEO_VSYNC_BUTTON, _video_vsync);
this->SetWidgetDisabledState(WID_GO_VIDEO_VSYNC_BUTTON, !_video_hw_accel);
#endif
bool missing_files = BaseGraphics::GetUsedSet()->GetNumMissing() == 0;
this->GetWidget<NWidgetCore>(WID_GO_BASE_GRF_STATUS)->SetDataTip(missing_files ? STR_EMPTY : STR_GAME_OPTIONS_BASE_GRF_STATUS, STR_NULL);
for (TextfileType tft = TFT_BEGIN; tft < TFT_END; tft++) {
this->SetWidgetDisabledState(WID_GO_BASE_GRF_TEXTFILE + tft, BaseGraphics::GetUsedSet() == nullptr || BaseGraphics::GetUsedSet()->GetTextfile(tft) == nullptr);
this->SetWidgetDisabledState(WID_GO_BASE_SFX_TEXTFILE + tft, BaseSounds::GetUsedSet() == nullptr || BaseSounds::GetUsedSet()->GetTextfile(tft) == nullptr);
this->SetWidgetDisabledState(WID_GO_BASE_MUSIC_TEXTFILE + tft, BaseMusic::GetUsedSet() == nullptr || BaseMusic::GetUsedSet()->GetTextfile(tft) == nullptr);
}
missing_files = BaseMusic::GetUsedSet()->GetNumInvalid() == 0;
this->GetWidget<NWidgetCore>(WID_GO_BASE_MUSIC_STATUS)->SetDataTip(missing_files ? STR_EMPTY : STR_GAME_OPTIONS_BASE_MUSIC_STATUS, STR_NULL);
}
};
static const NWidgetPart _nested_game_options_widgets[] = {
NWidget(NWID_HORIZONTAL),
NWidget(WWT_CLOSEBOX, COLOUR_GREY),
NWidget(WWT_CAPTION, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
EndContainer(),
NWidget(WWT_PANEL, COLOUR_GREY, WID_GO_BACKGROUND), SetPIP(6, 6, 10),
NWidget(NWID_HORIZONTAL), SetPIP(10, 10, 10),
NWidget(NWID_VERTICAL), SetPIP(0, 6, 0),
NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_AUTOSAVE_FRAME, STR_NULL),
NWidget(WWT_DROPDOWN, COLOUR_GREY, WID_GO_AUTOSAVE_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_STRING, STR_GAME_OPTIONS_AUTOSAVE_DROPDOWN_TOOLTIP), SetFill(1, 0),
EndContainer(),
NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_GUI_ZOOM_FRAME, STR_NULL),
NWidget(WWT_DROPDOWN, COLOUR_GREY, WID_GO_GUI_ZOOM_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_STRING, STR_GAME_OPTIONS_GUI_ZOOM_DROPDOWN_TOOLTIP), SetFill(1, 0),
EndContainer(),
NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_CURRENCY_UNITS_FRAME, STR_NULL),
NWidget(WWT_DROPDOWN, COLOUR_GREY, WID_GO_CURRENCY_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_STRING, STR_GAME_OPTIONS_CURRENCY_UNITS_DROPDOWN_TOOLTIP), SetFill(1, 0),
EndContainer(),
EndContainer(),
NWidget(NWID_VERTICAL), SetPIP(0, 6, 0),
NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_LANGUAGE, STR_NULL),
NWidget(WWT_DROPDOWN, COLOUR_GREY, WID_GO_LANG_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_RAW_STRING, STR_GAME_OPTIONS_LANGUAGE_TOOLTIP), SetFill(1, 0),
EndContainer(),
NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_FONT_ZOOM, STR_NULL),
NWidget(WWT_DROPDOWN, COLOUR_GREY, WID_GO_FONT_ZOOM_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_STRING, STR_GAME_OPTIONS_FONT_ZOOM_DROPDOWN_TOOLTIP), SetFill(1, 0),
EndContainer(),
EndContainer(),
EndContainer(),
NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_GRAPHICS, STR_NULL), SetPadding(0, 10, 0, 10),
NWidget(NWID_HORIZONTAL),
NWidget(NWID_VERTICAL), SetPIP(0, 2, 0),
NWidget(NWID_HORIZONTAL),
NWidget(WWT_TEXT, COLOUR_GREY), SetMinimalSize(0, 12),SetDataTip(STR_GAME_OPTIONS_RESOLUTION, STR_NULL),
NWidget(NWID_SPACER), SetMinimalSize(1, 0), SetFill(1, 0),
NWidget(WWT_DROPDOWN, COLOUR_GREY, WID_GO_RESOLUTION_DROPDOWN), SetMinimalSize(200, 12), SetDataTip(STR_BLACK_STRING, STR_GAME_OPTIONS_RESOLUTION_TOOLTIP),
EndContainer(),
NWidget(NWID_HORIZONTAL),
NWidget(WWT_TEXT, COLOUR_GREY), SetMinimalSize(0, 12), SetDataTip(STR_GAME_OPTIONS_REFRESH_RATE, STR_NULL),
NWidget(NWID_SPACER), SetMinimalSize(1, 0), SetFill(1, 0),
NWidget(WWT_DROPDOWN, COLOUR_GREY, WID_GO_REFRESH_RATE_DROPDOWN), SetMinimalSize(200, 12), SetDataTip(STR_GAME_OPTIONS_REFRESH_RATE_ITEM, STR_GAME_OPTIONS_REFRESH_RATE_TOOLTIP),
EndContainer(),
NWidget(NWID_HORIZONTAL),
NWidget(WWT_TEXT, COLOUR_GREY), SetMinimalSize(0, 12), SetDataTip(STR_GAME_OPTIONS_FULLSCREEN, STR_NULL),
NWidget(NWID_SPACER), SetMinimalSize(1, 0), SetFill(1, 0),
NWidget(WWT_TEXTBTN, COLOUR_GREY, WID_GO_FULLSCREEN_BUTTON), SetMinimalSize(21, 9), SetDataTip(STR_EMPTY, STR_GAME_OPTIONS_FULLSCREEN_TOOLTIP),
EndContainer(),
NWidget(NWID_HORIZONTAL),
NWidget(WWT_TEXT, COLOUR_GREY), SetMinimalSize(0, 12), SetDataTip(STR_GAME_OPTIONS_VIDEO_ACCELERATION, STR_NULL),
NWidget(NWID_SPACER), SetMinimalSize(1, 0), SetFill(1, 0),
NWidget(WWT_TEXTBTN, COLOUR_GREY, WID_GO_VIDEO_ACCEL_BUTTON), SetMinimalSize(21, 9), SetDataTip(STR_EMPTY, STR_GAME_OPTIONS_VIDEO_ACCELERATION_TOOLTIP),
EndContainer(),
#ifndef __APPLE__
NWidget(NWID_HORIZONTAL),
NWidget(WWT_TEXT, COLOUR_GREY), SetMinimalSize(0, 12), SetDataTip(STR_GAME_OPTIONS_VIDEO_VSYNC, STR_NULL),
NWidget(NWID_SPACER), SetMinimalSize(1, 0), SetFill(1, 0),
NWidget(WWT_TEXTBTN, COLOUR_GREY, WID_GO_VIDEO_VSYNC_BUTTON), SetMinimalSize(21, 9), SetDataTip(STR_EMPTY, STR_GAME_OPTIONS_VIDEO_VSYNC_TOOLTIP),
EndContainer(),
#endif
EndContainer(),
EndContainer(),
EndContainer(),
NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_BASE_GRF, STR_NULL), SetPadding(0, 10, 0, 10),
NWidget(NWID_HORIZONTAL), SetPIP(0, 30, 0),
NWidget(WWT_DROPDOWN, COLOUR_GREY, WID_GO_BASE_GRF_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_RAW_STRING, STR_GAME_OPTIONS_BASE_GRF_TOOLTIP),
NWidget(WWT_TEXT, COLOUR_GREY, WID_GO_BASE_GRF_STATUS), SetMinimalSize(150, 12), SetDataTip(STR_EMPTY, STR_NULL), SetFill(1, 0),
EndContainer(),
NWidget(WWT_TEXT, COLOUR_GREY, WID_GO_BASE_GRF_DESCRIPTION), SetMinimalSize(330, 0), SetDataTip(STR_EMPTY, STR_GAME_OPTIONS_BASE_GRF_DESCRIPTION_TOOLTIP), SetFill(1, 0), SetPadding(6, 0, 6, 0),
NWidget(NWID_HORIZONTAL, NC_EQUALSIZE), SetPIP(7, 0, 7),
NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_GO_BASE_GRF_TEXTFILE + TFT_README), SetFill(1, 0), SetResize(1, 0), SetDataTip(STR_TEXTFILE_VIEW_README, STR_NULL),
NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_GO_BASE_GRF_TEXTFILE + TFT_CHANGELOG), SetFill(1, 0), SetResize(1, 0), SetDataTip(STR_TEXTFILE_VIEW_CHANGELOG, STR_NULL),
NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_GO_BASE_GRF_TEXTFILE + TFT_LICENSE), SetFill(1, 0), SetResize(1, 0), SetDataTip(STR_TEXTFILE_VIEW_LICENCE, STR_NULL),
EndContainer(),
EndContainer(),
NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_BASE_SFX, STR_NULL), SetPadding(0, 10, 0, 10),
NWidget(NWID_HORIZONTAL), SetPIP(0, 30, 7),
NWidget(WWT_DROPDOWN, COLOUR_GREY, WID_GO_BASE_SFX_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_RAW_STRING, STR_GAME_OPTIONS_BASE_SFX_TOOLTIP),
NWidget(NWID_SPACER), SetMinimalSize(150, 12), SetFill(1, 0),
NWidget(WWT_EMPTY, COLOUR_GREY, WID_GO_BASE_SFX_VOLUME), SetMinimalSize(67, 12), SetFill(0, 0), SetDataTip(0x0, STR_MUSIC_TOOLTIP_DRAG_SLIDERS_TO_SET_MUSIC),
EndContainer(),
NWidget(WWT_TEXT, COLOUR_GREY, WID_GO_BASE_SFX_DESCRIPTION), SetMinimalSize(330, 0), SetDataTip(STR_EMPTY, STR_GAME_OPTIONS_BASE_SFX_DESCRIPTION_TOOLTIP), SetFill(1, 0), SetPadding(6, 0, 6, 0),
NWidget(NWID_HORIZONTAL, NC_EQUALSIZE), SetPIP(7, 0, 7),
NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_GO_BASE_SFX_TEXTFILE + TFT_README), SetFill(1, 0), SetResize(1, 0), SetDataTip(STR_TEXTFILE_VIEW_README, STR_NULL),
NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_GO_BASE_SFX_TEXTFILE + TFT_CHANGELOG), SetFill(1, 0), SetResize(1, 0), SetDataTip(STR_TEXTFILE_VIEW_CHANGELOG, STR_NULL),
NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_GO_BASE_SFX_TEXTFILE + TFT_LICENSE), SetFill(1, 0), SetResize(1, 0), SetDataTip(STR_TEXTFILE_VIEW_LICENCE, STR_NULL),
EndContainer(),
EndContainer(),
NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_BASE_MUSIC, STR_NULL), SetPadding(0, 10, 0, 10),
NWidget(NWID_HORIZONTAL), SetPIP(0, 30, 7),
NWidget(WWT_DROPDOWN, COLOUR_GREY, WID_GO_BASE_MUSIC_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_RAW_STRING, STR_GAME_OPTIONS_BASE_MUSIC_TOOLTIP),
NWidget(WWT_TEXT, COLOUR_GREY, WID_GO_BASE_MUSIC_STATUS), SetMinimalSize(150, 12), SetDataTip(STR_EMPTY, STR_NULL), SetFill(1, 0),
NWidget(WWT_EMPTY, COLOUR_GREY, WID_GO_BASE_MUSIC_VOLUME), SetMinimalSize(67, 12), SetFill(0, 0), SetDataTip(0x0, STR_MUSIC_TOOLTIP_DRAG_SLIDERS_TO_SET_MUSIC),
EndContainer(),
NWidget(WWT_TEXT, COLOUR_GREY, WID_GO_BASE_MUSIC_DESCRIPTION), SetMinimalSize(330, 0), SetDataTip(STR_EMPTY, STR_GAME_OPTIONS_BASE_MUSIC_DESCRIPTION_TOOLTIP), SetFill(1, 0), SetPadding(6, 0, 6, 0),
NWidget(NWID_HORIZONTAL, NC_EQUALSIZE), SetPIP(7, 0, 7),
NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_GO_BASE_MUSIC_TEXTFILE + TFT_README), SetFill(1, 0), SetResize(1, 0), SetDataTip(STR_TEXTFILE_VIEW_README, STR_NULL),
NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_GO_BASE_MUSIC_TEXTFILE + TFT_CHANGELOG), SetFill(1, 0), SetResize(1, 0), SetDataTip(STR_TEXTFILE_VIEW_CHANGELOG, STR_NULL),
NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_GO_BASE_MUSIC_TEXTFILE + TFT_LICENSE), SetFill(1, 0), SetResize(1, 0), SetDataTip(STR_TEXTFILE_VIEW_LICENCE, STR_NULL),
EndContainer(),
EndContainer(),
EndContainer(),
};
static WindowDesc _game_options_desc(
WDP_CENTER, "settings_game", 0, 0,
WC_GAME_OPTIONS, WC_NONE,
0,
_nested_game_options_widgets, lengthof(_nested_game_options_widgets)
);
/** Open the game options window. */
void ShowGameOptions()
{
CloseWindowByClass(WC_GAME_OPTIONS);
new GameOptionsWindow(&_game_options_desc);
}
static int SETTING_HEIGHT = 11; ///< Height of a single setting in the tree view in pixels
static const int LEVEL_WIDTH = 15; ///< Indenting width of a sub-page in pixels
/**
* Flags for #SettingEntry
* @note The #SEF_BUTTONS_MASK matches expectations of the formal parameter 'state' of #DrawArrowButtons
*/
enum SettingEntryFlags {
SEF_LEFT_DEPRESSED = 0x01, ///< Of a numeric setting entry, the left button is depressed
SEF_RIGHT_DEPRESSED = 0x02, ///< Of a numeric setting entry, the right button is depressed
SEF_BUTTONS_MASK = (SEF_LEFT_DEPRESSED | SEF_RIGHT_DEPRESSED), ///< Bit-mask for button flags
SEF_LAST_FIELD = 0x04, ///< This entry is the last one in a (sub-)page
SEF_FILTERED = 0x08, ///< Entry is hidden by the string filter
};
/** How the list of advanced settings is filtered. */
enum RestrictionMode {
RM_BASIC, ///< Display settings associated to the "basic" list.
RM_ADVANCED, ///< Display settings associated to the "advanced" list.
RM_ALL, ///< List all settings regardless of the default/newgame/... values.
RM_CHANGED_AGAINST_DEFAULT, ///< Show only settings which are different compared to default values.
RM_CHANGED_AGAINST_NEW, ///< Show only settings which are different compared to the user's new game setting values.
RM_END, ///< End for iteration.
};
DECLARE_POSTFIX_INCREMENT(RestrictionMode)
/** Filter for settings list. */
struct SettingFilter {
StringFilter string; ///< Filter string.
RestrictionMode min_cat; ///< Minimum category needed to display all filtered strings (#RM_BASIC, #RM_ADVANCED, or #RM_ALL).
bool type_hides; ///< Whether the type hides filtered strings.
RestrictionMode mode; ///< Filter based on category.
SettingType type; ///< Filter based on type.
};
/** Data structure describing a single setting in a tab */
struct BaseSettingEntry {
byte flags; ///< Flags of the setting entry. @see SettingEntryFlags
byte level; ///< Nesting level of this setting entry
BaseSettingEntry() : flags(0), level(0) {}
virtual ~BaseSettingEntry() {}
virtual void Init(byte level = 0);
virtual void FoldAll() {}
virtual void UnFoldAll() {}
virtual void ResetAll() = 0;
/**
* Set whether this is the last visible entry of the parent node.
* @param last_field Value to set
*/
void SetLastField(bool last_field) { if (last_field) SETBITS(this->flags, SEF_LAST_FIELD); else CLRBITS(this->flags, SEF_LAST_FIELD); }
virtual uint Length() const = 0;
virtual void GetFoldingState(bool &all_folded, bool &all_unfolded) const {}
virtual bool IsVisible(const BaseSettingEntry *item) const;
virtual BaseSettingEntry *FindEntry(uint row, uint *cur_row);
virtual uint GetMaxHelpHeight(int maxw) { return 0; }
/**
* Check whether an entry is hidden due to filters
* @return true if hidden.
*/
bool IsFiltered() const { return (this->flags & SEF_FILTERED) != 0; }
virtual bool UpdateFilterState(SettingFilter &filter, bool force_visible) = 0;
virtual uint Draw(GameSettings *settings_ptr, int left, int right, int y, uint first_row, uint max_row, BaseSettingEntry *selected, uint cur_row = 0, uint parent_last = 0) const;
protected:
virtual void DrawSetting(GameSettings *settings_ptr, int left, int right, int y, bool highlight) const = 0;
};
/** Standard setting */
struct SettingEntry : BaseSettingEntry {
const char *name; ///< Name of the setting
const IntSettingDesc *setting; ///< Setting description of the setting
SettingEntry(const char *name);
virtual void Init(byte level = 0);
virtual void ResetAll();
virtual uint Length() const;
virtual uint GetMaxHelpHeight(int maxw);
virtual bool UpdateFilterState(SettingFilter &filter, bool force_visible);
void SetButtons(byte new_val);
/**
* Get the help text of a single setting.
* @return The requested help text.
*/
inline StringID GetHelpText() const
{
return this->setting->str_help;
}
void SetValueDParams(uint first_param, int32 value) const;
protected:
virtual void DrawSetting(GameSettings *settings_ptr, int left, int right, int y, bool highlight) const;
private:
bool IsVisibleByRestrictionMode(RestrictionMode mode) const;
};
/** Containers for BaseSettingEntry */
struct SettingsContainer {
typedef std::vector<BaseSettingEntry*> EntryVector;
EntryVector entries; ///< Settings on this page
template<typename T>
T *Add(T *item)
{
this->entries.push_back(item);
return item;
}
void Init(byte level = 0);
void ResetAll();
void FoldAll();
void UnFoldAll();
uint Length() const;
void GetFoldingState(bool &all_folded, bool &all_unfolded) const;
bool IsVisible(const BaseSettingEntry *item) const;
BaseSettingEntry *FindEntry(uint row, uint *cur_row);
uint GetMaxHelpHeight(int maxw);
bool UpdateFilterState(SettingFilter &filter, bool force_visible);
uint Draw(GameSettings *settings_ptr, int left, int right, int y, uint first_row, uint max_row, BaseSettingEntry *selected, uint cur_row = 0, uint parent_last = 0) const;
};
/** Data structure describing one page of settings in the settings window. */
struct SettingsPage : BaseSettingEntry, SettingsContainer {
StringID title; ///< Title of the sub-page
bool folded; ///< Sub-page is folded (not visible except for its title)
SettingsPage(StringID title);
virtual void Init(byte level = 0);
virtual void ResetAll();
virtual void FoldAll();
virtual void UnFoldAll();
virtual uint Length() const;
virtual void GetFoldingState(bool &all_folded, bool &all_unfolded) const;
virtual bool IsVisible(const BaseSettingEntry *item) const;
virtual BaseSettingEntry *FindEntry(uint row, uint *cur_row);
virtual uint GetMaxHelpHeight(int maxw) { return SettingsContainer::GetMaxHelpHeight(maxw); }
virtual bool UpdateFilterState(SettingFilter &filter, bool force_visible);
virtual uint Draw(GameSettings *settings_ptr, int left, int right, int y, uint first_row, uint max_row, BaseSettingEntry *selected, uint cur_row = 0, uint parent_last = 0) const;
protected:
virtual void DrawSetting(GameSettings *settings_ptr, int left, int right, int y, bool highlight) const;
};
/* == BaseSettingEntry methods == */
/**
* Initialization of a setting entry
* @param level Page nesting level of this entry
*/
void BaseSettingEntry::Init(byte level)
{
this->level = level;
}
/**
* Check whether an entry is visible and not folded or filtered away.
* Note: This does not consider the scrolling range; it might still require scrolling to make the setting really visible.
* @param item Entry to search for.
* @return true if entry is visible.
*/
bool BaseSettingEntry::IsVisible(const BaseSettingEntry *item) const
{
if (this->IsFiltered()) return false;
if (this == item) return true;
return false;
}
/**
* Find setting entry at row \a row_num
* @param row_num Index of entry to return
* @param cur_row Current row number
* @return The requested setting entry or \c nullptr if it not found (folded or filtered)
*/
BaseSettingEntry *BaseSettingEntry::FindEntry(uint row_num, uint *cur_row)
{
if (this->IsFiltered()) return nullptr;
if (row_num == *cur_row) return this;
(*cur_row)++;
return nullptr;
}
/**
* Draw a row in the settings panel.
*
* The scrollbar uses rows of the page, while the page data structure is a tree of #SettingsPage and #SettingEntry objects.
* As a result, the drawing routing traverses the tree from top to bottom, counting rows in \a cur_row until it reaches \a first_row.
* Then it enables drawing rows while traversing until \a max_row is reached, at which point drawing is terminated.
*
* The \a parent_last parameter ensures that the vertical lines at the left are
* only drawn when another entry follows, that it prevents output like
* \verbatim
* |-- setting
* |-- (-) - Title
* | |-- setting
* | |-- setting
* \endverbatim
* The left-most vertical line is not wanted. It is prevented by setting the
* appropriate bit in the \a parent_last parameter.
*
* @param settings_ptr Pointer to current values of all settings
* @param left Left-most position in window/panel to start drawing \a first_row
* @param right Right-most x position to draw strings at.
* @param y Upper-most position in window/panel to start drawing \a first_row
* @param first_row First row number to draw
* @param max_row Row-number to stop drawing (the row-number of the row below the last row to draw)
* @param selected Selected entry by the user.
* @param cur_row Current row number (internal variable)
* @param parent_last Last-field booleans of parent page level (page level \e i sets bit \e i to 1 if it is its last field)
* @return Row number of the next row to draw
*/
uint BaseSettingEntry::Draw(GameSettings *settings_ptr, int left, int right, int y, uint first_row, uint max_row, BaseSettingEntry *selected, uint cur_row, uint parent_last) const
{
if (this->IsFiltered()) return cur_row;
if (cur_row >= max_row) return cur_row;
bool rtl = _current_text_dir == TD_RTL;
int offset = rtl ? -4 : 4;
int level_width = rtl ? -LEVEL_WIDTH : LEVEL_WIDTH;
int x = rtl ? right : left;
if (cur_row >= first_row) {
int colour = _colour_gradient[COLOUR_ORANGE][4];
y += (cur_row - first_row) * SETTING_HEIGHT; // Compute correct y start position
/* Draw vertical for parent nesting levels */
for (uint lvl = 0; lvl < this->level; lvl++) {
if (!HasBit(parent_last, lvl)) GfxDrawLine(x + offset, y, x + offset, y + SETTING_HEIGHT - 1, colour);
x += level_width;
}
/* draw own |- prefix */
int halfway_y = y + SETTING_HEIGHT / 2;