(svn r12995) -Codechange: use std::vector for EngineList instead of C/C++ wrapper for CBlobT

7 files changed, 57 insertions, 133 deletions

diff --git a/src/autoreplace_gui.cpp b/src/autoreplace_gui.cpp
index 1c7cfb000..0d1400c1c 100644
--- a/src/autoreplace_gui.cpp
+++ b/src/autoreplace_gui.cpp
@@ -197,7 +197,7 @@ static void GenerateReplaceVehList(Window *w, bool draw_left)
 	byte i = draw_left ? 0 : 1;
 
 	EngineList *list = &WP(w, replaceveh_d).list[i];
-	EngList_RemoveAll(list);
+	list->clear();
 
 	const Engine *e;
 	FOR_ALL_ENGINES_OF_TYPE(e, type) {
@@ -220,7 +220,7 @@ static void GenerateReplaceVehList(Window *w, bool draw_left)
 			if (eid == WP(w, replaceveh_d).sel_engine[0]) continue; // we can't replace an engine into itself (that would be autorenew)
 		}
 
-		EngList_Add(list, eid);
+		list->push_back(eid);
 		if (eid == WP(w, replaceveh_d).sel_engine[i]) selected_engine = eid; // The selected engine is still in the list
 	}
 	WP(w, replaceveh_d).sel_engine[i] = selected_engine; // update which engine we selected (the same or none, if it's not in the list anymore)
@@ -237,8 +237,8 @@ static void GenerateLists(Window *w)
 	if (WP(w, replaceveh_d).update_left == true) {
 		/* We need to rebuild the left list */
 		GenerateReplaceVehList(w, true);
-		SetVScrollCount(w, EngList_Count(&WP(w, replaceveh_d).list[0]));
-		if (WP(w, replaceveh_d).init_lists && WP(w, replaceveh_d).sel_engine[0] == INVALID_ENGINE && EngList_Count(&WP(w, replaceveh_d).list[0]) != 0) {
+		SetVScrollCount(w, WP(w, replaceveh_d).list[0].size());
+		if (WP(w, replaceveh_d).init_lists && WP(w, replaceveh_d).sel_engine[0] == INVALID_ENGINE && WP(w, replaceveh_d).list[0].size() != 0) {
 			WP(w, replaceveh_d).sel_engine[0] = WP(w, replaceveh_d).list[0][0];
 		}
 	}
@@ -247,12 +247,12 @@ static void GenerateLists(Window *w)
 		/* Either we got a request to rebuild the right list or the left list selected a different engine */
 		if (WP(w, replaceveh_d).sel_engine[0] == INVALID_ENGINE) {
 			/* Always empty the right list when nothing is selected in the left list */
-			EngList_RemoveAll(&WP(w, replaceveh_d).list[1]);
+			WP(w, replaceveh_d).list[1].clear();
 			WP(w, replaceveh_d).sel_engine[1] = INVALID_ENGINE;
 		} else {
 			GenerateReplaceVehList(w, false);
-			SetVScroll2Count(w, EngList_Count(&WP(w, replaceveh_d).list[1]));
-			if (WP(w, replaceveh_d).init_lists && WP(w, replaceveh_d).sel_engine[1] == INVALID_ENGINE && EngList_Count(&WP(w, replaceveh_d).list[1]) != 0) {
+			SetVScroll2Count(w, WP(w, replaceveh_d).list[1].size());
+			if (WP(w, replaceveh_d).init_lists && WP(w, replaceveh_d).sel_engine[1] == INVALID_ENGINE && WP(w, replaceveh_d).list[1].size() != 0) {
 				WP(w, replaceveh_d).sel_engine[1] = WP(w, replaceveh_d).list[1][0];
 			}
 		}
@@ -279,8 +279,8 @@ static void ReplaceVehicleWndProc(Window *w, WindowEvent *e)
 	switch (e->event) {
 		case WE_CREATE:
 			WP(w, replaceveh_d).wagon_btnstate = true; // start with locomotives (all other vehicles will not read this bool)
-			EngList_Create(&WP(w, replaceveh_d).list[0]);
-			EngList_Create(&WP(w, replaceveh_d).list[1]);
+			new (&WP(w, replaceveh_d).list[0]) EngineList();
+			new (&WP(w, replaceveh_d).list[1]) EngineList();
 			WP(w, replaceveh_d).update_left   = true;
 			WP(w, replaceveh_d).update_right  = true;
 			WP(w, replaceveh_d).init_lists    = true;
@@ -357,7 +357,7 @@ static void ReplaceVehicleWndProc(Window *w, WindowEvent *e)
 				uint widget     = (i == 0) ? RVW_WIDGET_LEFT_MATRIX : RVW_WIDGET_RIGHT_MATRIX;
 				EngineList list = WP(w, replaceveh_d).list[i]; // which list to draw
 				EngineID start  = i == 0 ? w->vscroll.pos : w->vscroll2.pos; // what is the offset for the start (scrolling)
-				EngineID end    = min((i == 0 ? w->vscroll.cap : w->vscroll2.cap) + start, EngList_Count(&list));
+				EngineID end    = min((i == 0 ? w->vscroll.cap : w->vscroll2.cap) + start, list.size());
 
 				/* Do the actual drawing */
 				DrawEngineList((VehicleType)w->window_number, w->widget[widget].left + 2, w->widget[widget].top + 1, list, start, end, WP(w, replaceveh_d).sel_engine[i], i == 0 ? w->widget[RVW_WIDGET_LEFT_MATRIX].right - 2 : 0, selected_group);
@@ -411,7 +411,7 @@ static void ReplaceVehicleWndProc(Window *w, WindowEvent *e)
 					uint16 click_scroll_pos = e->we.click.widget == RVW_WIDGET_LEFT_MATRIX ? w->vscroll.pos : w->vscroll2.pos;
 					uint16 click_scroll_cap = e->we.click.widget == RVW_WIDGET_LEFT_MATRIX ? w->vscroll.cap : w->vscroll2.cap;
 					byte click_side         = e->we.click.widget == RVW_WIDGET_LEFT_MATRIX ? 0 : 1;
-					uint16 engine_count     = EngList_Count(&WP(w, replaceveh_d).list[click_side]);
+					uint16 engine_count     = WP(w, replaceveh_d).list[click_side].size();
 
 					if (i < click_scroll_cap) {
 						i += click_scroll_pos;
@@ -476,8 +476,8 @@ static void ReplaceVehicleWndProc(Window *w, WindowEvent *e)
 			break;
 
 		case WE_DESTROY:
-			EngList_RemoveAll(&WP(w, replaceveh_d).list[0]);
-			EngList_RemoveAll(&WP(w, replaceveh_d).list[1]);
+			WP(w, replaceveh_d).list[0].~EngineList(); // call destructor explicitly
+			WP(w, replaceveh_d).list[1].~EngineList();
 		break;
 	}
 }
diff --git a/src/build_vehicle_gui.cpp b/src/build_vehicle_gui.cpp
index 66aeffeac..d96415ac3 100644
--- a/src/build_vehicle_gui.cpp
+++ b/src/build_vehicle_gui.cpp
@@ -794,7 +794,7 @@ static void GenerateBuildTrainList(Window *w)
 
 	bv->filter.railtype = (w->window_number <= VEH_END) ? RAILTYPE_END : GetRailType(w->window_number);
 
-	EngList_RemoveAll(&bv->eng_list);
+	bv->eng_list.clear();
 
 	/* Make list of all available train engines and wagons.
 	 * Also check to see if the previously selected engine is still available,
@@ -808,7 +808,7 @@ static void GenerateBuildTrainList(Window *w)
 		if (bv->filter.railtype != RAILTYPE_END && !HasPowerOnRail(rvi->railtype, bv->filter.railtype)) continue;
 		if (!IsEngineBuildable(eid, VEH_TRAIN, _local_player)) continue;
 
-		EngList_Add(&bv->eng_list, eid);
+		bv->eng_list.push_back(eid);
 		if (rvi->railveh_type != RAILVEH_WAGON) {
 			num_engines++;
 		} else {
@@ -838,14 +838,14 @@ static void GenerateBuildRoadVehList(Window *w)
 	EngineID sel_id = INVALID_ENGINE;
 	buildvehicle_d *bv = &WP(w, buildvehicle_d);
 
-	EngList_RemoveAll(&bv->eng_list);
+	bv->eng_list.clear();
 
 	const Engine *e;
 	FOR_ALL_ENGINES_OF_TYPE(e, VEH_ROAD) {
 		EngineID eid = e->index;
 		if (!IsEngineBuildable(eid, VEH_ROAD, _local_player)) continue;
 		if (!HasBit(bv->filter.roadtypes, HasBit(EngInfo(eid)->misc_flags, EF_ROAD_TRAM) ? ROADTYPE_TRAM : ROADTYPE_ROAD)) continue;
-		EngList_Add(&bv->eng_list, eid);
+		bv->eng_list.push_back(eid);
 
 		if (eid == bv->sel_engine) sel_id = eid;
 	}
@@ -858,13 +858,13 @@ static void GenerateBuildShipList(Window *w)
 	EngineID sel_id = INVALID_ENGINE;
 	buildvehicle_d *bv = &WP(w, buildvehicle_d);
 
-	EngList_RemoveAll(&bv->eng_list);
+	bv->eng_list.clear();
 
 	const Engine *e;
 	FOR_ALL_ENGINES_OF_TYPE(e, VEH_SHIP) {
 		EngineID eid = e->index;
 		if (!IsEngineBuildable(eid, VEH_SHIP, _local_player)) continue;
-		EngList_Add(&bv->eng_list, eid);
+		bv->eng_list.push_back(eid);
 
 		if (eid == bv->sel_engine) sel_id = eid;
 	}
@@ -877,7 +877,7 @@ static void GenerateBuildAircraftList(Window *w)
 	EngineID sel_id = INVALID_ENGINE;
 	buildvehicle_d *bv = &WP(w, buildvehicle_d);
 
-	EngList_RemoveAll(&bv->eng_list);
+	bv->eng_list.clear();
 
 	/* Make list of all available planes.
 	 * Also check to see if the previously selected plane is still available,
@@ -890,7 +890,7 @@ static void GenerateBuildAircraftList(Window *w)
 		/* First VEH_END window_numbers are fake to allow a window open for all different types at once */
 		if (w->window_number > VEH_END && !CanAircraftUseStation(eid, w->window_number)) continue;
 
-		EngList_Add(&bv->eng_list, eid);
+		bv->eng_list.push_back(eid);
 		if (eid == bv->sel_engine) sel_id = eid;
 	}
 
@@ -947,7 +947,7 @@ void DrawEngineList(VehicleType type, int x, int y, const EngineList eng_list, u
 	byte x_offset = 0;
 	byte y_offset = 0;
 
-	assert(max <= EngList_Count(&eng_list));
+	assert(max <= eng_list.size());
 
 	switch (type) {
 		case VEH_TRAIN:
@@ -992,11 +992,11 @@ void DrawEngineList(VehicleType type, int x, int y, const EngineList eng_list, u
 static void DrawBuildVehicleWindow(Window *w)
 {
 	const buildvehicle_d *bv = &WP(w, buildvehicle_d);
-	uint max = min(w->vscroll.pos + w->vscroll.cap, EngList_Count(&bv->eng_list));
+	uint max = min(w->vscroll.pos + w->vscroll.cap, bv->eng_list.size());
 
 	w->SetWidgetDisabledState(BUILD_VEHICLE_WIDGET_BUILD, w->window_number <= VEH_END);
 
-	SetVScrollCount(w, EngList_Count(&bv->eng_list));
+	SetVScrollCount(w, bv->eng_list.size());
 	SetDParam(0, bv->filter.railtype + STR_881C_NEW_RAIL_VEHICLES); // This should only affect rail vehicles
 
 	/* Set text of sort by dropdown */
@@ -1034,7 +1034,7 @@ static void BuildVehicleClickEvent(Window *w, WindowEvent *e)
 
 		case BUILD_VEHICLE_WIDGET_LIST: {
 			uint i = (e->we.click.pt.y - w->widget[BUILD_VEHICLE_WIDGET_LIST].top) / GetVehicleListHeight(bv->vehicle_type) + w->vscroll.pos;
-			uint num_items = EngList_Count(&bv->eng_list);
+			uint num_items = bv->eng_list.size();
 			bv->sel_engine = (i < num_items) ? bv->eng_list[i] : INVALID_ENGINE;
 			w->SetDirty();
 			break;
@@ -1112,7 +1112,7 @@ static void NewVehicleWndProc(Window *w, WindowEvent *e)
 			break;
 
 		case WE_DESTROY:
-			EngList_Destroy(&bv->eng_list);
+			bv->eng_list.~EngineList(); // call destructor explicitly
 			break;
 
 		case WE_PAINT:
@@ -1199,7 +1199,7 @@ void ShowBuildVehicleWindow(TileIndex tile, VehicleType type)
 	w->caption_color = (tile != 0) ? GetTileOwner(tile) : _local_player;
 
 	bv = &WP(w, buildvehicle_d);
-	EngList_Create(&bv->eng_list);
+	new (&bv->eng_list) EngineList();
 	bv->sel_engine      = INVALID_ENGINE;
 
 	bv->regenerate_list = false;
@@ -1226,5 +1226,5 @@ void ShowBuildVehicleWindow(TileIndex tile, VehicleType type)
 
 	GenerateBuildList(w); // generate the list, since we need it in the next line
 	/* Select the first engine in the list as default when opening the window */
-	if (EngList_Count(&bv->eng_list) > 0) bv->sel_engine = bv->eng_list[0];
+	if (bv->eng_list.size() > 0) bv->sel_engine = bv->eng_list[0];
 }
diff --git a/src/engine.cpp b/src/engine.cpp
index 3d9df73f3..c28b096cb 100644
--- a/src/engine.cpp
+++ b/src/engine.cpp
@@ -114,6 +114,28 @@ Engine::~Engine()
 	free(this->name);
 }
 
+/** Sort all items using qsort() and given 'CompareItems' function
+ * @param el list to be sorted
+ * @param compare function for evaluation of the quicksort
+ */
+void EngList_Sort(EngineList *el, EngList_SortTypeFunction compare)
+{
+	qsort(&((*el)[0]), el->size(), sizeof(EngineID), compare);
+}
+
+/** Sort selected range of items (on indices @ <begin, begin+num_items-1>)
+ * @param el list to be sorted
+ * @param compare function for evaluation of the quicksort
+ * @param begin start of sorting
+ * @param num_items count of items to be sorted
+ */
+void EngList_SortPartial(EngineList *el, EngList_SortTypeFunction compare, uint begin, uint num_items)
+{
+	assert(begin <= (uint)el->size());
+	assert(begin + num_items <= (uint)el->size());
+	qsort(&((*el)[begin]), num_items, sizeof(EngineID), compare);
+}
+
 void SetupEngines()
 {
 	_Engine_pool.CleanPool();
diff --git a/src/engine_func.h b/src/engine_func.h
index 56108e1b5..37863a964 100644
--- a/src/engine_func.h
+++ b/src/engine_func.h
@@ -28,15 +28,8 @@ void DeleteCustomEngineNames();
 bool IsEngineBuildable(EngineID engine, VehicleType type, PlayerID player);
 CargoID GetEngineCargoType(EngineID engine);
 
-/* Engine list manipulators - current implementation is only C wrapper of CBlobT<EngineID> class (helpers.cpp) */
-void EngList_Create(EngineList *el);            ///< Creates engine list
-void EngList_Destroy(EngineList *el);           ///< Deallocate and destroy engine list
-uint EngList_Count(const EngineList *el);       ///< Returns number of items in the engine list
-void EngList_Add(EngineList *el, EngineID eid); ///< Append one item at the end of engine list
-EngineID* EngList_Items(EngineList *el);        ///< Returns engine list items as C array
-void EngList_RemoveAll(EngineList *el);         ///< Removes all items from engine list
 typedef int CDECL EngList_SortTypeFunction(const void*, const void*); ///< argument type for EngList_Sort()
-void EngList_Sort(EngineList *el, EngList_SortTypeFunction compare); ///< qsort of the engine list
+void EngList_Sort(EngineList *el, EngList_SortTypeFunction compare);  ///< qsort of the engine list
 void EngList_SortPartial(EngineList *el, EngList_SortTypeFunction compare, uint begin, uint num_items); ///< qsort of specified portion of the engine list
 
 #endif /* ENGINE_H */
diff --git a/src/engine_type.h b/src/engine_type.h
index 03bee6fe4..affa722ce 100644
--- a/src/engine_type.h
+++ b/src/engine_type.h
@@ -14,9 +14,11 @@
 #include "player_type.h"
 #include "strings_type.h"
 
+#include <vector>
+
 typedef uint16 EngineID;
 typedef uint16 EngineRenewID;
-typedef EngineID *EngineList; ///< engine list type placeholder acceptable for C code (see helpers.cpp)
+typedef std::vector<EngineID> EngineList; ///< engine list type
 
 struct Engine;
 
diff --git a/src/helpers.cpp b/src/helpers.cpp
deleted file mode 100644
index af8dd4fbe..000000000
--- a/src/helpers.cpp
+++ /dev/null
@@ -1,94 +0,0 @@
-/* $Id$ */
-
-/** @file helpers.cpp Some not-so-generic helper functions. */
-
-#include "stdafx.h"
-
-#include "openttd.h"
-#include "engine_func.h"
-
-#include <new>
-#include "misc/blob.hpp"
-
-/* Engine list manipulators - current implementation is only C wrapper around CBlobT<EngineID> (see yapf/blob.hpp) */
-
-/* we cannot expose CBlobT directly to C so we must cast EngineList* to CBlobT<EngineID>* always when we are called from C */
-#define B (*(CBlobT<EngineID>*)el)
-
-/** Create Engine List (and initialize it to empty)
- * @param el list to be created
- */
-void EngList_Create(EngineList *el)
-{
-	/* call CBlobT constructor explicitly */
-	new (&B) CBlobT<EngineID>();
-}
-
-/** Destroy Engine List (and free its contents)
- * @param el list to be destroyed
- */
-void EngList_Destroy(EngineList *el)
-{
-	/* call CBlobT destructor explicitly */
-	B.~CBlobT<EngineID>();
-}
-
-/** Return number of items stored in the Engine List
- * @param el list for count inquiry
- * @return the desired count
- */
-uint EngList_Count(const EngineList *el)
-{
-	return B.Size();
-}
-
-/** Add new item at the end of Engine List
- * @param el list o which to add an engine
- * @param eid engine to add to the list
- */
-void EngList_Add(EngineList *el, EngineID eid)
-{
-	B.Append(eid);
-}
-
-/** Return pointer to the items array held by Engine List
- * @param el list from which the array pointer has to be returned
- * @return the pointer required
- */
-EngineID* EngList_Items(EngineList *el)
-{
-	return B.Data();
-}
-
-/** Clear the Engine List (by invalidating all its items == reseting item count to zero)
- * @param el list to be cleared
- */
-void EngList_RemoveAll(EngineList *el)
-{
-	B.Clear();
-}
-
-/** Sort all items using qsort() and given 'CompareItems' function
- * @param el list to be sorted
- * @param compare function for evaluation of the quicksort
- */
-void EngList_Sort(EngineList *el, EngList_SortTypeFunction compare)
-{
-	qsort(B.Data(), B.Size(), sizeof(**el), compare);
-}
-
-/** Sort selected range of items (on indices @ <begin, begin+num_items-1>)
- * @param el list to be sorted
- * @param compare function for evaluation of the quicksort
- * @param begin start of sorting
- * @param num_items count of items to be sorted
- */
-void EngList_SortPartial(EngineList *el, EngList_SortTypeFunction compare, uint begin, uint num_items)
-{
-	assert(begin <= (uint)B.Size());
-	assert(begin + num_items <= (uint)B.Size());
-	qsort(B.Data() + begin, num_items, sizeof(**el), compare);
-}
-
-#undef B
-
diff --git a/src/misc/blob.hpp b/src/misc/blob.hpp
index 441c8a027..c96902997 100644
--- a/src/misc/blob.hpp
+++ b/src/misc/blob.hpp
@@ -373,7 +373,7 @@ public:
 	}
 
 	/** Check the validity of item index (only in debug mode) */
-	FORCEINLINE void CheckIdx(bsize_t idx)
+	FORCEINLINE void CheckIdx(bsize_t idx) const
 	{
 		assert(idx >= 0); assert(idx < Size());
 	}
@@ -400,7 +400,8 @@ public:
 	/** Return pointer to the idx-th data item - const version */
 	FORCEINLINE const Titem* Data(bsize_t idx) const
 	{
-		CheckIdx(idx); return (Data() + idx);
+		CheckIdx(idx);
+		return (Data() + idx);
 	}
 
 	/** Return number of items in the Blob */