OpenTTD Source  20241108-master-g80f628063a
linkgraph_gui.cpp
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1 /*
2  * This file is part of OpenTTD.
3  * 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.
4  * 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.
5  * 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/>.
6  */
7 
10 #include "../stdafx.h"
11 #include "../window_gui.h"
12 #include "../window_func.h"
13 #include "../company_base.h"
14 #include "../company_gui.h"
15 #include "../timer/timer_game_tick.h"
16 #include "../timer/timer_game_calendar.h"
17 #include "../viewport_func.h"
18 #include "../zoom_func.h"
19 #include "../smallmap_gui.h"
20 #include "../core/geometry_func.hpp"
21 #include "../widgets/link_graph_legend_widget.h"
22 #include "../strings_func.h"
23 #include "linkgraph_gui.h"
24 
25 #include "table/strings.h"
26 
27 #include "../safeguards.h"
28 
33 const uint8_t LinkGraphOverlay::LINK_COLOURS[][12] = {
34 {
35  0x0f, 0xd1, 0xd0, 0x57,
36  0x55, 0x53, 0xbf, 0xbd,
37  0xba, 0xb9, 0xb7, 0xb5
38 },
39 {
40  0x0f, 0xd1, 0xd0, 0x57,
41  0x55, 0x53, 0x96, 0x95,
42  0x94, 0x93, 0x92, 0x91
43 },
44 {
45  0x0f, 0x0b, 0x09, 0x07,
46  0x05, 0x03, 0xbf, 0xbd,
47  0xba, 0xb9, 0xb7, 0xb5
48 },
49 {
50  0x0f, 0x0b, 0x0a, 0x09,
51  0x08, 0x07, 0x06, 0x05,
52  0x04, 0x03, 0x02, 0x01
53 }
54 };
55 
61 {
62  const NWidgetBase *wi = this->window->GetWidget<NWidgetBase>(this->widget_id);
63  dpi->left = dpi->top = 0;
64  dpi->width = wi->current_x;
65  dpi->height = wi->current_y;
66 }
67 
72 {
73  this->cached_links.clear();
74  this->cached_stations.clear();
75  if (this->company_mask == 0) return;
76 
77  DrawPixelInfo dpi;
78  this->GetWidgetDpi(&dpi);
79 
80  for (const Station *sta : Station::Iterate()) {
81  if (sta->rect.IsEmpty()) continue;
82 
83  Point pta = this->GetStationMiddle(sta);
84 
85  StationID from = sta->index;
86  StationLinkMap &seen_links = this->cached_links[from];
87 
88  uint supply = 0;
89  for (CargoID c : SetCargoBitIterator(this->cargo_mask)) {
90  if (!CargoSpec::Get(c)->IsValid()) continue;
91  if (!LinkGraph::IsValidID(sta->goods[c].link_graph)) continue;
92  const LinkGraph &lg = *LinkGraph::Get(sta->goods[c].link_graph);
93 
94  ConstNode &from_node = lg[sta->goods[c].node];
95  supply += lg.Monthly(from_node.supply);
96  for (const Edge &edge : from_node.edges) {
97  StationID to = lg[edge.dest_node].station;
98  assert(from != to);
99  if (!Station::IsValidID(to) || seen_links.find(to) != seen_links.end()) {
100  continue;
101  }
102  const Station *stb = Station::Get(to);
103  assert(sta != stb);
104 
105  /* Show links between stations of selected companies or "neutral" ones like oilrigs. */
106  if (stb->owner != OWNER_NONE && sta->owner != OWNER_NONE && !HasBit(this->company_mask, stb->owner)) continue;
107  if (stb->rect.IsEmpty()) continue;
108 
109  if (!this->IsLinkVisible(pta, this->GetStationMiddle(stb), &dpi)) continue;
110 
111  this->AddLinks(sta, stb);
112  seen_links[to]; // make sure it is created and marked as seen
113  }
114  }
115  if (this->IsPointVisible(pta, &dpi)) {
116  this->cached_stations.emplace_back(from, supply);
117  }
118  }
119 }
120 
128 inline bool LinkGraphOverlay::IsPointVisible(Point pt, const DrawPixelInfo *dpi, int padding) const
129 {
130  return pt.x > dpi->left - padding && pt.y > dpi->top - padding &&
131  pt.x < dpi->left + dpi->width + padding &&
132  pt.y < dpi->top + dpi->height + padding;
133 }
134 
143 inline bool LinkGraphOverlay::IsLinkVisible(Point pta, Point ptb, const DrawPixelInfo *dpi, int padding) const
144 {
145  const int left = dpi->left - padding;
146  const int right = dpi->left + dpi->width + padding;
147  const int top = dpi->top - padding;
148  const int bottom = dpi->top + dpi->height + padding;
149 
150  /*
151  * This method is an implementation of the Cohen-Sutherland line-clipping algorithm.
152  * See: https://en.wikipedia.org/wiki/Cohen%E2%80%93Sutherland_algorithm
153  */
154 
155  const uint8_t INSIDE = 0; // 0000
156  const uint8_t LEFT = 1; // 0001
157  const uint8_t RIGHT = 2; // 0010
158  const uint8_t BOTTOM = 4; // 0100
159  const uint8_t TOP = 8; // 1000
160 
161  int x0 = pta.x;
162  int y0 = pta.y;
163  int x1 = ptb.x;
164  int y1 = ptb.y;
165 
166  auto out_code = [&](int x, int y) -> uint8_t {
167  uint8_t out = INSIDE;
168  if (x < left) {
169  out |= LEFT;
170  } else if (x > right) {
171  out |= RIGHT;
172  }
173  if (y < top) {
174  out |= TOP;
175  } else if (y > bottom) {
176  out |= BOTTOM;
177  }
178  return out;
179  };
180 
181  uint8_t c0 = out_code(x0, y0);
182  uint8_t c1 = out_code(x1, y1);
183 
184  while (true) {
185  if (c0 == 0 || c1 == 0) return true;
186  if ((c0 & c1) != 0) return false;
187 
188  if (c0 & TOP) { // point 0 is above the clip window
189  x0 = x0 + (int)(((int64_t) (x1 - x0)) * ((int64_t) (top - y0)) / ((int64_t) (y1 - y0)));
190  y0 = top;
191  } else if (c0 & BOTTOM) { // point 0 is below the clip window
192  x0 = x0 + (int)(((int64_t) (x1 - x0)) * ((int64_t) (bottom - y0)) / ((int64_t) (y1 - y0)));
193  y0 = bottom;
194  } else if (c0 & RIGHT) { // point 0 is to the right of clip window
195  y0 = y0 + (int)(((int64_t) (y1 - y0)) * ((int64_t) (right - x0)) / ((int64_t) (x1 - x0)));
196  x0 = right;
197  } else if (c0 & LEFT) { // point 0 is to the left of clip window
198  y0 = y0 + (int)(((int64_t) (y1 - y0)) * ((int64_t) (left - x0)) / ((int64_t) (x1 - x0)));
199  x0 = left;
200  }
201 
202  c0 = out_code(x0, y0);
203  }
204 
205  NOT_REACHED();
206 }
207 
213 void LinkGraphOverlay::AddLinks(const Station *from, const Station *to)
214 {
215  for (CargoID c : SetCargoBitIterator(this->cargo_mask)) {
216  if (!CargoSpec::Get(c)->IsValid()) continue;
217  const GoodsEntry &ge = from->goods[c];
218  if (!LinkGraph::IsValidID(ge.link_graph) ||
219  ge.link_graph != to->goods[c].link_graph) {
220  continue;
221  }
222  const LinkGraph &lg = *LinkGraph::Get(ge.link_graph);
223  if (lg[ge.node].HasEdgeTo(to->goods[c].node)) {
224  ConstEdge &edge = lg[ge.node][to->goods[c].node];
225  this->AddStats(c, lg.Monthly(edge.capacity), lg.Monthly(edge.usage),
226  ge.flows.GetFlowVia(to->index),
227  edge.TravelTime() / Ticks::DAY_TICKS,
228  from->owner == OWNER_NONE || to->owner == OWNER_NONE,
229  this->cached_links[from->index][to->index]);
230  }
231  }
232 }
233 
244 /* static */ void LinkGraphOverlay::AddStats(CargoID new_cargo, uint new_cap, uint new_usg, uint new_plan, uint32_t time, bool new_shared, LinkProperties &cargo)
245 {
246  /* multiply the numbers by 32 in order to avoid comparing to 0 too often. */
247  if (cargo.capacity == 0 ||
248  cargo.Usage() * 32 / (cargo.capacity + 1) < std::max(new_usg, new_plan) * 32 / (new_cap + 1)) {
249  cargo.cargo = new_cargo;
250  cargo.capacity = new_cap;
251  cargo.usage = new_usg;
252  cargo.planned = new_plan;
253  cargo.time = time;
254  }
255  if (new_shared) cargo.shared = true;
256 }
257 
263 {
264  if (this->dirty) {
265  this->RebuildCache();
266  this->dirty = false;
267  }
268  this->DrawLinks(dpi);
269  this->DrawStationDots(dpi);
270 }
271 
277 {
278  int width = ScaleGUITrad(this->scale);
279  for (const auto &i : this->cached_links) {
280  if (!Station::IsValidID(i.first)) continue;
281  Point pta = this->GetStationMiddle(Station::Get(i.first));
282  for (const auto &j : i.second) {
283  if (!Station::IsValidID(j.first)) continue;
284  Point ptb = this->GetStationMiddle(Station::Get(j.first));
285  if (!this->IsLinkVisible(pta, ptb, dpi, width + 2)) continue;
286  this->DrawContent(pta, ptb, j.second);
287  }
288  }
289 }
290 
297 void LinkGraphOverlay::DrawContent(Point pta, Point ptb, const LinkProperties &cargo) const
298 {
299  uint usage_or_plan = std::min(cargo.capacity * 2 + 1, cargo.Usage());
301  int width = ScaleGUITrad(this->scale);
302  int dash = cargo.shared ? width * 4 : 0;
303 
304  /* Move line a bit 90° against its dominant direction to prevent it from
305  * being hidden below the grey line. */
306  int side = _settings_game.vehicle.road_side ? 1 : -1;
307  if (abs(pta.x - ptb.x) < abs(pta.y - ptb.y)) {
308  int offset_x = (pta.y > ptb.y ? 1 : -1) * side * width;
309  GfxDrawLine(pta.x + offset_x, pta.y, ptb.x + offset_x, ptb.y, colour, width, dash);
310  } else {
311  int offset_y = (pta.x < ptb.x ? 1 : -1) * side * width;
312  GfxDrawLine(pta.x, pta.y + offset_y, ptb.x, ptb.y + offset_y, colour, width, dash);
313  }
314 
315  GfxDrawLine(pta.x, pta.y, ptb.x, ptb.y, GetColourGradient(COLOUR_GREY, SHADE_DARKEST), width);
316 }
317 
323 {
324  int width = ScaleGUITrad(this->scale);
325  for (const auto &i : this->cached_stations) {
326  const Station *st = Station::GetIfValid(i.first);
327  if (st == nullptr) continue;
328  Point pt = this->GetStationMiddle(st);
329  if (!this->IsPointVisible(pt, dpi, 3 * width)) continue;
330 
331  uint r = width * 2 + width * 2 * std::min(200U, i.second) / 200;
332 
333  LinkGraphOverlay::DrawVertex(pt.x, pt.y, r,
335  Company::Get(st->owner)->colour : COLOUR_GREY, SHADE_LIGHT),
336  GetColourGradient(COLOUR_GREY, SHADE_DARKEST));
337  }
338 }
339 
348 /* static */ void LinkGraphOverlay::DrawVertex(int x, int y, int size, int colour, int border_colour)
349 {
350  size--;
351  int w1 = size / 2;
352  int w2 = size / 2 + size % 2;
353  int borderwidth = ScaleGUITrad(1);
354 
355  GfxFillRect(x - w1 - borderwidth, y - w1 - borderwidth, x + w2 + borderwidth, y + w2 + borderwidth, border_colour);
356  GfxFillRect(x - w1, y - w1, x + w2, y + w2, colour);
357 }
358 
359 bool LinkGraphOverlay::ShowTooltip(Point pt, TooltipCloseCondition close_cond)
360 {
361  for (auto i(this->cached_links.crbegin()); i != this->cached_links.crend(); ++i) {
362  if (!Station::IsValidID(i->first)) continue;
363  Point pta = this->GetStationMiddle(Station::Get(i->first));
364  for (auto j(i->second.crbegin()); j != i->second.crend(); ++j) {
365  if (!Station::IsValidID(j->first)) continue;
366  if (i->first == j->first) continue;
367 
368  /* Check the distance from the cursor to the line defined by the two stations. */
369  Point ptb = this->GetStationMiddle(Station::Get(j->first));
370  float dist = std::abs((int64_t)(ptb.x - pta.x) * (int64_t)(pta.y - pt.y) - (int64_t)(pta.x - pt.x) * (int64_t)(ptb.y - pta.y)) /
371  std::sqrt((int64_t)(ptb.x - pta.x) * (int64_t)(ptb.x - pta.x) + (int64_t)(ptb.y - pta.y) * (int64_t)(ptb.y - pta.y));
372  const auto &link = j->second;
373  if (dist <= 4 && link.Usage() > 0 &&
374  pt.x + 2 >= std::min(pta.x, ptb.x) &&
375  pt.x - 2 <= std::max(pta.x, ptb.x) &&
376  pt.y + 2 >= std::min(pta.y, ptb.y) &&
377  pt.y - 2 <= std::max(pta.y, ptb.y)) {
378  static std::string tooltip_extension;
379  tooltip_extension.clear();
380  /* Fill buf with more information if this is a bidirectional link. */
381  uint32_t back_time = 0;
382  auto k = this->cached_links[j->first].find(i->first);
383  if (k != this->cached_links[j->first].end()) {
384  const auto &back = k->second;
385  back_time = back.time;
386  if (back.Usage() > 0) {
387  SetDParam(0, back.cargo);
388  SetDParam(1, back.Usage());
389  SetDParam(2, back.Usage() * 100 / (back.capacity + 1));
390  tooltip_extension = GetString(STR_LINKGRAPH_STATS_TOOLTIP_RETURN_EXTENSION);
391  }
392  }
393  /* Add information about the travel time if known. */
394  const auto time = link.time ? back_time ? ((link.time + back_time) / 2) : link.time : back_time;
395  if (time > 0) {
396  SetDParam(0, time);
397  AppendStringInPlace(tooltip_extension, STR_LINKGRAPH_STATS_TOOLTIP_TIME_EXTENSION);
398  }
399  SetDParam(0, link.cargo);
400  SetDParam(1, link.Usage());
401  SetDParam(2, i->first);
402  SetDParam(3, j->first);
403  SetDParam(4, link.Usage() * 100 / (link.capacity + 1));
404  SetDParamStr(5, tooltip_extension);
405  GuiShowTooltips(this->window,
406  TimerGameEconomy::UsingWallclockUnits() ? STR_LINKGRAPH_STATS_TOOLTIP_MINUTE : STR_LINKGRAPH_STATS_TOOLTIP_MONTH,
407  close_cond, 7);
408  return true;
409  }
410  }
411  }
412  GuiShowTooltips(this->window, STR_NULL, close_cond);
413  return false;
414 }
415 
422 {
423  if (this->window->viewport != nullptr) {
424  return GetViewportStationMiddle(this->window->viewport, st);
425  } else {
426  /* assume this is a smallmap */
427  return GetSmallMapStationMiddle(this->window, st);
428  }
429 }
430 
435 void LinkGraphOverlay::SetCargoMask(CargoTypes cargo_mask)
436 {
437  this->cargo_mask = cargo_mask;
438  this->RebuildCache();
439  this->window->GetWidget<NWidgetBase>(this->widget_id)->SetDirty(this->window);
440 }
441 
446 void LinkGraphOverlay::SetCompanyMask(CompanyMask company_mask)
447 {
448  this->company_mask = company_mask;
449  this->RebuildCache();
450  this->window->GetWidget<NWidgetBase>(this->widget_id)->SetDirty(this->window);
451 }
452 
454 std::unique_ptr<NWidgetBase> MakeCompanyButtonRowsLinkGraphGUI()
455 {
456  return MakeCompanyButtonRows(WID_LGL_COMPANY_FIRST, WID_LGL_COMPANY_LAST, COLOUR_GREY, 3, STR_NULL);
457 }
458 
459 std::unique_ptr<NWidgetBase> MakeSaturationLegendLinkGraphGUI()
460 {
461  auto panel = std::make_unique<NWidgetVertical>(NC_EQUALSIZE);
462  for (uint i = 0; i < lengthof(LinkGraphOverlay::LINK_COLOURS[0]); ++i) {
463  auto wid = std::make_unique<NWidgetBackground>(WWT_PANEL, COLOUR_DARK_GREEN, i + WID_LGL_SATURATION_FIRST);
464  wid->SetMinimalSize(50, 0);
465  wid->SetMinimalTextLines(1, 0, FS_SMALL);
466  wid->SetFill(1, 1);
467  wid->SetResize(0, 0);
468  panel->Add(std::move(wid));
469  }
470  return panel;
471 }
472 
473 std::unique_ptr<NWidgetBase> MakeCargoesLegendLinkGraphGUI()
474 {
475  uint num_cargo = static_cast<uint>(_sorted_cargo_specs.size());
476  static const uint ENTRIES_PER_COL = 5;
477  auto panel = std::make_unique<NWidgetHorizontal>(NC_EQUALSIZE);
478  std::unique_ptr<NWidgetVertical> col = nullptr;
479 
480  for (uint i = 0; i < num_cargo; ++i) {
481  if (i % ENTRIES_PER_COL == 0) {
482  if (col != nullptr) panel->Add(std::move(col));
483  col = std::make_unique<NWidgetVertical>(NC_EQUALSIZE);
484  }
485  auto wid = std::make_unique<NWidgetBackground>(WWT_PANEL, COLOUR_GREY, i + WID_LGL_CARGO_FIRST);
486  wid->SetMinimalSize(25, 0);
487  wid->SetMinimalTextLines(1, 0, FS_SMALL);
488  wid->SetFill(1, 1);
489  wid->SetResize(0, 0);
490  col->Add(std::move(wid));
491  }
492  /* Fill up last row */
493  for (uint i = num_cargo; i < Ceil(num_cargo, ENTRIES_PER_COL); ++i) {
494  auto spc = std::make_unique<NWidgetSpacer>(25, 0);
495  spc->SetMinimalTextLines(1, 0, FS_SMALL);
496  spc->SetFill(1, 1);
497  spc->SetResize(0, 0);
498  col->Add(std::move(spc));
499  }
500  /* If there are no cargo specs defined, then col won't have been created so don't add it. */
501  if (col != nullptr) panel->Add(std::move(col));
502  return panel;
503 }
504 
505 
506 static constexpr NWidgetPart _nested_linkgraph_legend_widgets[] = {
508  NWidget(WWT_CLOSEBOX, COLOUR_DARK_GREEN),
509  NWidget(WWT_CAPTION, COLOUR_DARK_GREEN, WID_LGL_CAPTION), SetDataTip(STR_LINKGRAPH_LEGEND_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
510  NWidget(WWT_SHADEBOX, COLOUR_DARK_GREEN),
511  NWidget(WWT_STICKYBOX, COLOUR_DARK_GREEN),
512  EndContainer(),
513  NWidget(WWT_PANEL, COLOUR_DARK_GREEN),
515  NWidget(WWT_PANEL, COLOUR_DARK_GREEN, WID_LGL_SATURATION),
516  NWidgetFunction(MakeSaturationLegendLinkGraphGUI),
517  EndContainer(),
518  NWidget(WWT_PANEL, COLOUR_DARK_GREEN, WID_LGL_COMPANIES),
521  NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_LGL_COMPANIES_ALL), SetDataTip(STR_LINKGRAPH_LEGEND_ALL, STR_NULL),
522  NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_LGL_COMPANIES_NONE), SetDataTip(STR_LINKGRAPH_LEGEND_NONE, STR_NULL),
523  EndContainer(),
524  EndContainer(),
525  NWidget(WWT_PANEL, COLOUR_DARK_GREEN, WID_LGL_CARGOES),
527  NWidgetFunction(MakeCargoesLegendLinkGraphGUI),
528  NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_LGL_CARGOES_ALL), SetDataTip(STR_LINKGRAPH_LEGEND_ALL, STR_NULL),
529  NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_LGL_CARGOES_NONE), SetDataTip(STR_LINKGRAPH_LEGEND_NONE, STR_NULL),
530  EndContainer(),
531  EndContainer(),
532  EndContainer(),
533  EndContainer()
534 };
535 
536 static_assert(WID_LGL_SATURATION_LAST - WID_LGL_SATURATION_FIRST ==
538 
539 static WindowDesc _linkgraph_legend_desc(
540  WDP_AUTO, "toolbar_linkgraph", 0, 0,
542  0,
543  _nested_linkgraph_legend_widgets
544 );
545 
550 {
551  AllocateWindowDescFront<LinkGraphLegendWindow>(_linkgraph_legend_desc, 0);
552 }
553 
554 LinkGraphLegendWindow::LinkGraphLegendWindow(WindowDesc &desc, int window_number) : Window(desc)
555 {
556  this->num_cargo = _sorted_cargo_specs.size();
557 
558  this->InitNested(window_number);
559  this->InvalidateData(0);
560  this->SetOverlay(GetMainWindow()->viewport->overlay);
561 }
562 
567 void LinkGraphLegendWindow::SetOverlay(std::shared_ptr<LinkGraphOverlay> overlay)
568 {
569  this->overlay = overlay;
570  CompanyMask companies = this->overlay->GetCompanyMask();
571  for (uint c = 0; c < MAX_COMPANIES; c++) {
572  if (!this->IsWidgetDisabled(WID_LGL_COMPANY_FIRST + c)) {
573  this->SetWidgetLoweredState(WID_LGL_COMPANY_FIRST + c, HasBit(companies, c));
574  }
575  }
576  CargoTypes cargoes = this->overlay->GetCargoMask();
577  for (uint c = 0; c < this->num_cargo; c++) {
578  this->SetWidgetLoweredState(WID_LGL_CARGO_FIRST + c, HasBit(cargoes, _sorted_cargo_specs[c]->Index()));
579  }
580 }
581 
582 void LinkGraphLegendWindow::UpdateWidgetSize(WidgetID widget, Dimension &size, [[maybe_unused]] const Dimension &padding, [[maybe_unused]] Dimension &fill, [[maybe_unused]] Dimension &resize)
583 {
584  if (IsInsideMM(widget, WID_LGL_SATURATION_FIRST, WID_LGL_SATURATION_LAST + 1)) {
585  StringID str = STR_NULL;
586  if (widget == WID_LGL_SATURATION_FIRST) {
587  str = STR_LINKGRAPH_LEGEND_UNUSED;
588  } else if (widget == WID_LGL_SATURATION_LAST) {
589  str = STR_LINKGRAPH_LEGEND_OVERLOADED;
590  } else if (widget == (WID_LGL_SATURATION_LAST + WID_LGL_SATURATION_FIRST) / 2) {
591  str = STR_LINKGRAPH_LEGEND_SATURATED;
592  }
593  if (str != STR_NULL) {
595  dim.width += padding.width;
596  dim.height += padding.height;
597  size = maxdim(size, dim);
598  }
599  }
600  if (IsInsideMM(widget, WID_LGL_CARGO_FIRST, WID_LGL_CARGO_LAST + 1)) {
601  const CargoSpec *cargo = _sorted_cargo_specs[widget - WID_LGL_CARGO_FIRST];
603  dim.width += padding.width;
604  dim.height += padding.height;
605  size = maxdim(size, dim);
606  }
607 }
608 
609 void LinkGraphLegendWindow::DrawWidget(const Rect &r, WidgetID widget) const
610 {
611  Rect br = r.Shrink(WidgetDimensions::scaled.bevel);
612  if (IsInsideMM(widget, WID_LGL_COMPANY_FIRST, WID_LGL_COMPANY_LAST + 1)) {
613  if (this->IsWidgetDisabled(widget)) return;
614  CompanyID cid = (CompanyID)(widget - WID_LGL_COMPANY_FIRST);
615  Dimension sprite_size = GetSpriteSize(SPR_COMPANY_ICON);
616  DrawCompanyIcon(cid, CenterBounds(br.left, br.right, sprite_size.width), CenterBounds(br.top, br.bottom, sprite_size.height));
617  }
618  if (IsInsideMM(widget, WID_LGL_SATURATION_FIRST, WID_LGL_SATURATION_LAST + 1)) {
619  uint8_t colour = LinkGraphOverlay::LINK_COLOURS[_settings_client.gui.linkgraph_colours][widget - WID_LGL_SATURATION_FIRST];
620  GfxFillRect(br, colour);
621  StringID str = STR_NULL;
622  if (widget == WID_LGL_SATURATION_FIRST) {
623  str = STR_LINKGRAPH_LEGEND_UNUSED;
624  } else if (widget == WID_LGL_SATURATION_LAST) {
625  str = STR_LINKGRAPH_LEGEND_OVERLOADED;
626  } else if (widget == (WID_LGL_SATURATION_LAST + WID_LGL_SATURATION_FIRST) / 2) {
627  str = STR_LINKGRAPH_LEGEND_SATURATED;
628  }
629  if (str != STR_NULL) {
630  DrawString(br.left, br.right, CenterBounds(br.top, br.bottom, GetCharacterHeight(FS_SMALL)), str, GetContrastColour(colour) | TC_FORCED, SA_HOR_CENTER, false, FS_SMALL);
631  }
632  }
633  if (IsInsideMM(widget, WID_LGL_CARGO_FIRST, WID_LGL_CARGO_LAST + 1)) {
634  const CargoSpec *cargo = _sorted_cargo_specs[widget - WID_LGL_CARGO_FIRST];
635  GfxFillRect(br, cargo->legend_colour);
636  DrawString(br.left, br.right, CenterBounds(br.top, br.bottom, GetCharacterHeight(FS_SMALL)), cargo->abbrev, GetContrastColour(cargo->legend_colour, 73), SA_HOR_CENTER, false, FS_SMALL);
637  }
638 }
639 
640 bool LinkGraphLegendWindow::OnTooltip([[maybe_unused]] Point, WidgetID widget, TooltipCloseCondition close_cond)
641 {
642  if (IsInsideMM(widget, WID_LGL_COMPANY_FIRST, WID_LGL_COMPANY_LAST + 1)) {
643  if (this->IsWidgetDisabled(widget)) {
644  GuiShowTooltips(this, STR_LINKGRAPH_LEGEND_SELECT_COMPANIES, close_cond);
645  } else {
646  SetDParam(0, STR_LINKGRAPH_LEGEND_SELECT_COMPANIES);
647  SetDParam(1, (CompanyID)(widget - WID_LGL_COMPANY_FIRST));
648  GuiShowTooltips(this, STR_LINKGRAPH_LEGEND_COMPANY_TOOLTIP, close_cond, 2);
649  }
650  return true;
651  }
652  if (IsInsideMM(widget, WID_LGL_CARGO_FIRST, WID_LGL_CARGO_LAST + 1)) {
653  const CargoSpec *cargo = _sorted_cargo_specs[widget - WID_LGL_CARGO_FIRST];
654  GuiShowTooltips(this, cargo->name, close_cond);
655  return true;
656  }
657  return false;
658 }
659 
664 {
665  uint32_t mask = 0;
666  for (CompanyID c = COMPANY_FIRST; c < MAX_COMPANIES; c++) {
667  if (this->IsWidgetDisabled(WID_LGL_COMPANY_FIRST + c)) continue;
668  if (!this->IsWidgetLowered(WID_LGL_COMPANY_FIRST + c)) continue;
669  SetBit(mask, c);
670  }
671  this->overlay->SetCompanyMask(mask);
672 }
673 
678 {
679  CargoTypes mask = 0;
680  for (uint c = 0; c < num_cargo; c++) {
681  if (!this->IsWidgetLowered(WID_LGL_CARGO_FIRST + c)) continue;
682  SetBit(mask, _sorted_cargo_specs[c]->Index());
683  }
684  this->overlay->SetCargoMask(mask);
685 }
686 
687 void LinkGraphLegendWindow::OnClick([[maybe_unused]] Point pt, WidgetID widget, [[maybe_unused]] int click_count)
688 {
689  /* Check which button is clicked */
690  if (IsInsideMM(widget, WID_LGL_COMPANY_FIRST, WID_LGL_COMPANY_LAST + 1)) {
691  if (!this->IsWidgetDisabled(widget)) {
692  this->ToggleWidgetLoweredState(widget);
693  this->UpdateOverlayCompanies();
694  }
695  } else if (widget == WID_LGL_COMPANIES_ALL || widget == WID_LGL_COMPANIES_NONE) {
696  for (CompanyID c = COMPANY_FIRST; c < MAX_COMPANIES; c++) {
697  if (this->IsWidgetDisabled(WID_LGL_COMPANY_FIRST + c)) continue;
698  this->SetWidgetLoweredState(WID_LGL_COMPANY_FIRST + c, widget == WID_LGL_COMPANIES_ALL);
699  }
700  this->UpdateOverlayCompanies();
701  this->SetDirty();
702  } else if (IsInsideMM(widget, WID_LGL_CARGO_FIRST, WID_LGL_CARGO_LAST + 1)) {
703  this->ToggleWidgetLoweredState(widget);
704  this->UpdateOverlayCargoes();
705  } else if (widget == WID_LGL_CARGOES_ALL || widget == WID_LGL_CARGOES_NONE) {
706  for (uint c = 0; c < this->num_cargo; c++) {
707  this->SetWidgetLoweredState(WID_LGL_CARGO_FIRST + c, widget == WID_LGL_CARGOES_ALL);
708  }
709  this->UpdateOverlayCargoes();
710  }
711  this->SetDirty();
712 }
713 
719 void LinkGraphLegendWindow::OnInvalidateData([[maybe_unused]] int data, [[maybe_unused]] bool gui_scope)
720 {
721  if (this->num_cargo != _sorted_cargo_specs.size()) {
722  this->Close();
723  return;
724  }
725 
726  /* Disable the companies who are not active */
727  for (CompanyID i = COMPANY_FIRST; i < MAX_COMPANIES; i++) {
728  this->SetWidgetDisabledState(WID_LGL_COMPANY_FIRST + i, !Company::IsValidID(i));
729  }
730 }
constexpr debug_inline bool HasBit(const T x, const uint8_t y)
Checks if a bit in a value is set.
constexpr T SetBit(T &x, const uint8_t y)
Set a bit in a variable.
uint8_t CargoID
Cargo slots to indicate a cargo type within a game.
Definition: cargo_type.h:22
std::vector< const CargoSpec * > _sorted_cargo_specs
Cargo specifications sorted alphabetically by name.
Definition: cargotype.cpp:180
uint GetFlowVia(StationID via) const
Get the sum of flows via a specific station from this FlowStatMap.
bool IsPointVisible(Point pt, const DrawPixelInfo *dpi, int padding=0) const
Determine if a certain point is inside the given DPI, with some lee way.
void SetCargoMask(CargoTypes cargo_mask)
Set a new cargo mask and rebuild the cache.
CargoTypes cargo_mask
Bitmask of cargos to be displayed.
Definition: linkgraph_gui.h:79
static void DrawVertex(int x, int y, int size, int colour, int border_colour)
Draw a square symbolizing a producer of cargo.
Window * window
Window to be drawn into.
Definition: linkgraph_gui.h:77
void DrawLinks(const DrawPixelInfo *dpi) const
Draw the cached links or part of them into the given area.
void SetCompanyMask(CompanyMask company_mask)
Set a new company mask and rebuild the cache.
static const uint8_t LINK_COLOURS[][12]
Colours for the various "load" states of links.
Definition: linkgraph_gui.h:47
StationSupplyList cached_stations
Cache for stations to be drawn.
Definition: linkgraph_gui.h:82
LinkMap cached_links
Cache for links to reduce recalculation.
Definition: linkgraph_gui.h:81
bool IsLinkVisible(Point pta, Point ptb, const DrawPixelInfo *dpi, int padding=0) const
Determine if a certain link crosses through the area given by the dpi with some lee way.
Point GetStationMiddle(const Station *st) const
Determine the middle of a station in the current window.
void Draw(const DrawPixelInfo *dpi)
Draw the linkgraph overlay or some part of it, in the area given.
bool dirty
Set if overlay should be rebuilt.
Definition: linkgraph_gui.h:84
const WidgetID widget_id
ID of Widget in Window to be drawn to.
Definition: linkgraph_gui.h:78
void DrawContent(Point pta, Point ptb, const LinkProperties &cargo) const
Draw one specific link.
CompanyMask company_mask
Bitmask of companies to be displayed.
Definition: linkgraph_gui.h:80
uint scale
Width of link lines.
Definition: linkgraph_gui.h:83
void GetWidgetDpi(DrawPixelInfo *dpi) const
Get a DPI for the widget we will be drawing to.
static void AddStats(CargoID new_cargo, uint new_cap, uint new_usg, uint new_flow, uint32_t time, bool new_shared, LinkProperties &cargo)
Add information from a given pair of link stat and flow stat to the given link properties.
void AddLinks(const Station *sta, const Station *stb)
Add all "interesting" links between the given stations to the cache.
void DrawStationDots(const DrawPixelInfo *dpi) const
Draw dots for stations into the smallmap.
void SetDirty()
Mark the linkgraph dirty to be rebuilt next time Draw() is called.
Definition: linkgraph_gui.h:68
void RebuildCache()
Rebuild the cache and recalculate which links and stations to be shown.
A connected component of a link graph.
Definition: linkgraph.h:37
uint Monthly(uint base) const
Scale a value to its monthly equivalent, based on last compression.
Definition: linkgraph.h:249
Baseclass for nested widgets.
Definition: widget_type.h:144
uint current_x
Current horizontal size (after resizing).
Definition: widget_type.h:243
uint current_y
Current vertical size (after resizing).
Definition: widget_type.h:244
static constexpr TimerGameTick::Ticks DAY_TICKS
1 day is 74 ticks; TimerGameCalendar::date_fract used to be uint16_t and incremented by 885.
static bool UsingWallclockUnits(bool newgame=false)
Check if we are using wallclock units.
static WidgetDimensions scaled
Widget dimensions scaled for current zoom level.
Definition: window_gui.h:68
static const WidgetDimensions unscaled
Unscaled widget dimensions.
Definition: window_gui.h:67
void DrawCompanyIcon(CompanyID c, int x, int y)
Draw the icon of a company.
Owner
Enum for all companies/owners.
Definition: company_type.h:18
@ COMPANY_FIRST
First company, same as owner.
Definition: company_type.h:22
@ OWNER_NONE
The tile has no ownership.
Definition: company_type.h:25
@ MAX_COMPANIES
Maximum number of companies.
Definition: company_type.h:23
int GetCharacterHeight(FontSize size)
Get height of a character for a given font size.
Definition: fontcache.cpp:77
Dimension maxdim(const Dimension &d1, const Dimension &d2)
Compute bounding box of both dimensions.
Dimension GetSpriteSize(SpriteID sprid, Point *offset, ZoomLevel zoom)
Get the size of a sprite.
Definition: gfx.cpp:922
Dimension GetStringBoundingBox(std::string_view str, FontSize start_fontsize)
Return the string dimension in pixels.
Definition: gfx.cpp:851
int DrawString(int left, int right, int top, std::string_view str, TextColour colour, StringAlignment align, bool underline, FontSize fontsize)
Draw string, possibly truncated to make it fit in its allocated space.
Definition: gfx.cpp:657
void GfxFillRect(int left, int top, int right, int bottom, int colour, FillRectMode mode)
Applies a certain FillRectMode-operation to a rectangle [left, right] x [top, bottom] on the screen.
Definition: gfx.cpp:114
int CenterBounds(int min, int max, int size)
Determine where to draw a centred object inside a widget.
Definition: gfx_func.h:166
@ SA_HOR_CENTER
Horizontally center the text.
Definition: gfx_type.h:344
@ FS_SMALL
Index of the small font in the font tables.
Definition: gfx_type.h:210
@ TC_FORCED
Ignore colour changes from strings.
Definition: gfx_type.h:285
constexpr NWidgetPart NWidgetFunction(NWidgetFunctionType *func_ptr)
Obtain a nested widget (sub)tree from an external source.
Definition: widget_type.h:1330
constexpr NWidgetPart SetPIP(uint8_t pre, uint8_t inter, uint8_t post)
Widget part function for setting a pre/inter/post spaces.
Definition: widget_type.h:1260
constexpr NWidgetPart SetPadding(uint8_t top, uint8_t right, uint8_t bottom, uint8_t left)
Widget part function for setting additional space around a widget.
Definition: widget_type.h:1228
constexpr NWidgetPart SetDataTip(uint32_t data, StringID tip)
Widget part function for setting the data and tooltip.
Definition: widget_type.h:1202
constexpr NWidgetPart NWidget(WidgetType tp, Colours col, WidgetID idx=-1)
Widget part function for starting a new 'real' widget.
Definition: widget_type.h:1309
constexpr NWidgetPart EndContainer()
Widget part function for denoting the end of a container (horizontal, vertical, WWT_FRAME,...
Definition: widget_type.h:1191
void SetDirty() const
Mark entire window as dirty (in need of re-paint)
Definition: window.cpp:940
std::unique_ptr< NWidgetBase > MakeCompanyButtonRowsLinkGraphGUI()
Make a number of rows with buttons for each company for the linkgraph legend window.
void ShowLinkGraphLegend()
Open a link graph legend window.
Declaration of linkgraph overlay GUI.
constexpr T abs(const T a)
Returns the absolute value of (scalar) variable.
Definition: math_func.hpp:23
constexpr uint Ceil(uint a, uint b)
Computes ceil(a / b) * b for non-negative a and b.
Definition: math_func.hpp:331
constexpr bool IsInsideMM(const T x, const size_t min, const size_t max) noexcept
Checks if a value is in an interval.
Definition: math_func.hpp:268
void GuiShowTooltips(Window *parent, StringID str, TooltipCloseCondition close_tooltip, uint paramcount)
Shows a tooltip.
Definition: misc_gui.cpp:760
uint8_t GetColourGradient(Colours colour, ColourShade shade)
Get colour gradient palette index.
Definition: palette.cpp:314
TextColour GetContrastColour(uint8_t background, uint8_t threshold)
Determine a contrasty text colour for a coloured background.
Definition: palette.cpp:287
GameSettings _settings_game
Game settings of a running game or the scenario editor.
Definition: settings.cpp:57
ClientSettings _settings_client
The current settings for this game.
Definition: settings.cpp:56
Point GetSmallMapStationMiddle(const Window *w, const Station *st)
Determine the middle of a station in the smallmap window.
#define lengthof(array)
Return the length of an fixed size array.
Definition: stdafx.h:280
void AppendStringInPlace(std::string &result, StringID string)
Resolve the given StringID and append in place into an existing std::string with all the associated D...
Definition: strings.cpp:331
void SetDParam(size_t n, uint64_t v)
Set a string parameter v at index n in the global string parameter array.
Definition: strings.cpp:104
std::string GetString(StringID string)
Resolve the given StringID into a std::string with all the associated DParam lookups and formatting.
Definition: strings.cpp:319
void SetDParamStr(size_t n, const char *str)
This function is used to "bind" a C string to a OpenTTD dparam slot.
Definition: strings.cpp:357
uint32_t StringID
Numeric value that represents a string, independent of the selected language.
Definition: strings_type.h:16
Owner owner
The owner of this station.
StationRect rect
NOSAVE: Station spread out rectangle maintained by StationRect::xxx() functions.
Specification of a cargo type.
Definition: cargotype.h:71
StringID abbrev
Two letter abbreviation for this cargo type.
Definition: cargotype.h:92
static CargoSpec * Get(size_t index)
Retrieve cargo details for the given cargo ID.
Definition: cargotype.h:134
StringID name
Name of this type of cargo.
Definition: cargotype.h:88
GUISettings gui
settings related to the GUI
Dimensions (a width and height) of a rectangle in 2D.
Data about how and where to blit pixels.
Definition: gfx_type.h:157
uint8_t linkgraph_colours
linkgraph overlay colours
VehicleSettings vehicle
options for vehicles
Stores station stats for a single cargo.
Definition: station_base.h:166
FlowStatMap flows
Planned flows through this station.
Definition: station_base.h:211
NodeID node
ID of node in link graph referring to this goods entry.
Definition: station_base.h:214
LinkGraphID link_graph
Link graph this station belongs to.
Definition: station_base.h:215
void OnInvalidateData(int data=0, bool gui_scope=true) override
Invalidate the data of this window if the cargoes or companies have changed.
void SetOverlay(std::shared_ptr< LinkGraphOverlay > overlay)
Set the overlay belonging to this menu and import its company/cargo settings.
void UpdateOverlayCompanies()
Update the overlay with the new company selection.
void UpdateOverlayCargoes()
Update the overlay with the new cargo selection.
An edge in the link graph.
Definition: linkgraph.h:42
uint32_t TravelTime() const
Get edge's average travel time.
Definition: linkgraph.h:56
NodeID dest_node
Destination of the edge.
Definition: linkgraph.h:48
uint usage
Usage of the link.
Definition: linkgraph.h:44
uint capacity
Capacity of the link.
Definition: linkgraph.h:43
Node of the link graph.
Definition: linkgraph.h:90
std::vector< BaseEdge > edges
Sorted list of outgoing edges from this node.
Definition: linkgraph.h:97
uint supply
Supply at the station.
Definition: linkgraph.h:91
Monthly statistics for a link between two stations.
Definition: linkgraph_gui.h:23
uint usage
Actual usage of the link.
Definition: linkgraph_gui.h:31
bool shared
If this is a shared link to be drawn dashed.
Definition: linkgraph_gui.h:34
CargoID cargo
Cargo type of the link.
Definition: linkgraph_gui.h:29
uint planned
Planned usage of the link.
Definition: linkgraph_gui.h:32
uint Usage() const
Return the usage of the link to display.
Definition: linkgraph_gui.h:27
uint capacity
Capacity of the link.
Definition: linkgraph_gui.h:30
uint32_t time
Travel time of the link.
Definition: linkgraph_gui.h:33
Partial widget specification to allow NWidgets to be written nested.
Definition: widget_type.h:1075
Coordinates of a point in 2D.
Tindex index
Index of this pool item.
Definition: pool_type.hpp:238
static Titem * Get(size_t index)
Returns Titem with given index.
Definition: pool_type.hpp:339
static bool IsValidID(size_t index)
Tests whether given index can be used to get valid (non-nullptr) Titem.
Definition: pool_type.hpp:328
Specification of a rectangle with absolute coordinates of all edges.
Rect Shrink(int s) const
Copy and shrink Rect by s pixels.
Iterable ensemble of each set bit in a value.
static Station * GetIfValid(size_t index)
Returns station if the index is a valid index for this station type.
static Pool::IterateWrapper< Station > Iterate(size_t from=0)
Returns an iterable ensemble of all valid stations of type T.
static Station * Get(size_t index)
Gets station with given index.
static bool IsValidID(size_t index)
Tests whether given index is a valid index for station of this type.
Station data structure.
Definition: station_base.h:439
GoodsEntry goods[NUM_CARGO]
Goods at this station.
Definition: station_base.h:468
uint8_t road_side
the side of the road vehicles drive on
High level window description.
Definition: window_gui.h:159
Data structure for an opened window.
Definition: window_gui.h:273
virtual void Close(int data=0)
Hide the window and all its child windows, and mark them for a later deletion.
Definition: window.cpp:1047
ViewportData * viewport
Pointer to viewport data, if present.
Definition: window_gui.h:318
bool IsWidgetLowered(WidgetID widget_index) const
Gets the lowered state of a widget.
Definition: window_gui.h:497
bool IsWidgetDisabled(WidgetID widget_index) const
Gets the enabled/disabled status of a widget.
Definition: window_gui.h:416
void SetWidgetLoweredState(WidgetID widget_index, bool lowered_stat)
Sets the lowered/raised status of a widget.
Definition: window_gui.h:447
const NWID * GetWidget(WidgetID widnum) const
Get the nested widget with number widnum from the nested widget tree.
Definition: window_gui.h:977
void SetWidgetDisabledState(WidgetID widget_index, bool disab_stat)
Sets the enabled/disabled status of a widget.
Definition: window_gui.h:387
void ToggleWidgetLoweredState(WidgetID widget_index)
Invert the lowered/raised status of a widget.
Definition: window_gui.h:456
std::unique_ptr< NWidgetBase > MakeCompanyButtonRows(WidgetID widget_first, WidgetID widget_last, Colours button_colour, int max_length, StringID button_tooltip, bool resizable)
Make a number of rows with button-like graphics, for enabling/disabling each company.
Definition: widget.cpp:3300
@ NC_EQUALSIZE
Value of the NCB_EQUALSIZE flag.
Definition: widget_type.h:524
@ WWT_PUSHTXTBTN
Normal push-button (no toggle button) with text caption.
Definition: widget_type.h:112
@ NWID_HORIZONTAL
Horizontal container.
Definition: widget_type.h:75
@ WWT_PANEL
Simple depressed panel.
Definition: widget_type.h:50
@ WWT_STICKYBOX
Sticky box (at top-right of a window, after WWT_DEFSIZEBOX)
Definition: widget_type.h:66
@ WWT_SHADEBOX
Shade box (at top-right of a window, between WWT_DEBUGBOX and WWT_DEFSIZEBOX)
Definition: widget_type.h:64
@ WWT_CAPTION
Window caption (window title between closebox and stickybox)
Definition: widget_type.h:61
@ NWID_VERTICAL
Vertical container.
Definition: widget_type.h:77
@ WWT_CLOSEBOX
Close box (at top-left of a window)
Definition: widget_type.h:69
Window * GetMainWindow()
Get the main window, i.e.
Definition: window.cpp:1127
@ WDP_AUTO
Find a place automatically.
Definition: window_gui.h:147
int WidgetID
Widget ID.
Definition: window_type.h:18
@ WC_LINKGRAPH_LEGEND
Linkgraph legend; Window numbers:
Definition: window_type.h:692
@ WC_NONE
No window, redirects to WC_MAIN_WINDOW.
Definition: window_type.h:45
int ScaleGUITrad(int value)
Scale traditional pixel dimensions to GUI zoom level.
Definition: zoom_func.h:117