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authorfrosch <frosch@openttd.org>2009-08-10 20:06:39 +0000
committerfrosch <frosch@openttd.org>2009-08-10 20:06:39 +0000
commit52f9b8ffbd5fe9222da34e968d69876982b9a810 (patch)
treeac1f89eacfa91e22cdd80d1c7d39ba898bd0944f
parent238b0e43bbaa997acb7e53f1de118a963bb330fa (diff)
downloadopenttd-52f9b8ffbd5fe9222da34e968d69876982b9a810.tar.xz
(svn r17147) -Fix [FS#3048]: Keep vehicle news and viewports following vehicles, when autoreplacing/renewing them.
-rw-r--r--src/autoreplace_cmd.cpp9
-rw-r--r--src/news_func.h9
-rw-r--r--src/news_gui.cpp23
-rw-r--r--src/news_type.h6
-rw-r--r--src/vehicle_gui.h4
-rw-r--r--src/window.cpp18
6 files changed, 63 insertions, 6 deletions
diff --git a/src/autoreplace_cmd.cpp b/src/autoreplace_cmd.cpp
index 45e084bff..333b3710b 100644
--- a/src/autoreplace_cmd.cpp
+++ b/src/autoreplace_cmd.cpp
@@ -4,7 +4,6 @@
#include "stdafx.h"
#include "company_func.h"
-#include "vehicle_gui.h"
#include "train.h"
#include "rail.h"
#include "command_func.h"
@@ -18,6 +17,10 @@
#include "table/strings.h"
+extern void ChangeVehicleViewports(VehicleID from_index, VehicleID to_index);
+extern void ChangeVehicleNews(VehicleID from_index, VehicleID to_index);
+extern void ChangeVehicleViewWindow(VehicleID from_index, VehicleID to_index);
+
/** Figure out if two engines got at least one type of cargo in common (refitting if needed)
* @param engine_a one of the EngineIDs
* @param engine_b the other EngineID
@@ -332,8 +335,10 @@ static CommandCost CopyHeadSpecificThings(Vehicle *old_head, Vehicle *new_head,
/* Copy other things which cannot be copied by a command and which shall not stay resetted from the build vehicle command */
new_head->CopyVehicleConfigAndStatistics(old_head);
- /* Switch vehicle windows to the new vehicle, so they are not closed when the old vehicle is sold */
+ /* Switch vehicle windows/news to the new vehicle, so they are not closed/deleted when the old vehicle is sold */
+ ChangeVehicleViewports(old_head->index, new_head->index);
ChangeVehicleViewWindow(old_head->index, new_head->index);
+ ChangeVehicleNews(old_head->index, new_head->index);
}
return cost;
diff --git a/src/news_func.h b/src/news_func.h
index 1f77d2970..031446044 100644
--- a/src/news_func.h
+++ b/src/news_func.h
@@ -17,6 +17,15 @@ static inline void AddCompanyNewsItem(StringID string, NewsSubtype subtype, Comp
AddNewsItem(string, subtype, NR_NONE, UINT32_MAX, NR_NONE, UINT32_MAX, cni);
}
+/**
+ * Adds a newsitem referencing a vehicle.
+ *
+ * @warning
+ * Be careful!
+ * Vehicles are a special case, as news are kept when vehicles are autoreplaced/renewed.
+ * You have to make sure, #ChangeVehicleNews catches the DParams of your message.
+ * This is NOT ensured by the references.
+ */
static inline void AddVehicleNewsItem(StringID string, NewsSubtype subtype, VehicleID vehicle, StationID station = INVALID_STATION)
{
AddNewsItem(string, subtype, NR_VEHICLE, vehicle, station == INVALID_STATION ? NR_NONE : NR_STATION, station);
diff --git a/src/news_gui.cpp b/src/news_gui.cpp
index d3c9577e5..db1b4eef6 100644
--- a/src/news_gui.cpp
+++ b/src/news_gui.cpp
@@ -673,6 +673,29 @@ void RemoveOldNewsItems()
}
}
+/**
+ * Report a change in vehicle IDs (due to autoreplace) to affected vehicle news.
+ * @note Viewports of currently displayed news is changed via #ChangeVehicleViewports
+ * @param from_index the old vehicle ID
+ * @param to_index the new vehicle ID
+ */
+void ChangeVehicleNews(VehicleID from_index, VehicleID to_index)
+{
+ for (NewsItem *ni = _oldest_news; ni != NULL; ni = ni->next) {
+ if (ni->reftype1 == NR_VEHICLE && ni->ref1 == from_index) ni->ref1 = to_index;
+ if (ni->reftype2 == NR_VEHICLE && ni->ref2 == from_index) ni->ref2 = to_index;
+
+ /* Oh noes :(
+ * Autoreplace is breaking the whole news-reference concept here, as we want to keep the news,
+ * but do not know which DParams to change.
+ *
+ * Currently only NS_ADVICE news have vehicle IDs in their DParams.
+ * And all NS_ADVICE news have the ID in param 0.
+ */
+ if (ni->subtype == NS_ADVICE && ni->params[0] == from_index) ni->params[0] = to_index;
+ }
+}
+
void NewsLoop()
{
/* no news item yet */
diff --git a/src/news_type.h b/src/news_type.h
index 12e6a5ff6..189369e78 100644
--- a/src/news_type.h
+++ b/src/news_type.h
@@ -68,6 +68,12 @@ enum NewsMode {
/**
* References to objects in news.
+ *
+ * @warning
+ * Be careful!
+ * Vehicles are a special case, as news are kept when vehicles are autoreplaced/renewed.
+ * You have to make sure, #ChangeVehicleNews catches the DParams of your message.
+ * This is NOT ensured by the references.
*/
enum NewsReferenceType {
NR_NONE, ///< Empty reference
diff --git a/src/vehicle_gui.h b/src/vehicle_gui.h
index 20f01808a..2f86c4859 100644
--- a/src/vehicle_gui.h
+++ b/src/vehicle_gui.h
@@ -78,10 +78,6 @@ void ShowVehicleListWindow(CompanyID company, VehicleType vehicle_type, StationI
void ShowVehicleListWindow(CompanyID company, VehicleType vehicle_type, TileIndex depot_tile);
-/* ChangeVehicleViewWindow() moves all windows for one vehicle to another vehicle.
- * For ease of use it can be called with both Vehicle pointers and VehicleIDs. */
-void ChangeVehicleViewWindow(VehicleID from_index, VehicleID to_index);
-
static inline uint GetVehicleListHeight(VehicleType type)
{
return (type == VEH_TRAIN || type == VEH_ROAD) ? 14 : 24;
diff --git a/src/window.cpp b/src/window.cpp
index 6c202f489..0d46ff644 100644
--- a/src/window.cpp
+++ b/src/window.cpp
@@ -2663,6 +2663,24 @@ void SetHScrollCount(Window *w, int num)
if (num < w->hscroll.pos) w->hscroll.pos = num;
}
+
+/**
+ * Switches viewports following vehicles, which get autoreplaced
+ * @param from_index the old vehicle ID
+ * @param to_index the new vehicle ID
+ */
+void ChangeVehicleViewports(VehicleID from_index, VehicleID to_index)
+{
+ Window *w;
+ FOR_ALL_WINDOWS_FROM_BACK(w) {
+ if (w->viewport != NULL && w->viewport->follow_vehicle == from_index) {
+ w->viewport->follow_vehicle = to_index;
+ w->SetDirty();
+ }
+ }
+}
+
+
/**
* Relocate all windows to fit the new size of the game application screen
* @param neww New width of the game application screen