From 9ed9aa9012fff20c9d73c5fa80e65e64c0925937 Mon Sep 17 00:00:00 2001
From: yexo <yexo@openttd.org>
Date: Fri, 21 May 2010 06:59:45 +0000
Subject: [PATCH] (svn r19871) -Fix [FS#3826]: update the landscape buttons in
 the main menu / newgame window correctly (planetmaker)

---
 src/genworld.h       |  1 +
 src/genworld_gui.cpp | 22 ++++++++++++++--------
 src/intro_gui.cpp    | 13 ++-----------
 3 files changed, 17 insertions(+), 19 deletions(-)

diff --git a/src/genworld.h b/src/genworld.h
index a32cf21159..6dd89e06ea 100644
--- a/src/genworld.h
+++ b/src/genworld.h
@@ -87,6 +87,7 @@ bool IsGeneratingWorldAborted();
 void HandleGeneratingWorldAbortion();
 
 /* genworld_gui.cpp */
+void SetNewLandscapeType(byte landscape);
 void SetGeneratingWorldProgress(GenWorldProgress cls, uint total);
 void IncreaseGeneratingWorldProgress(GenWorldProgress cls);
 void PrepareGenerateWorldProgress();
diff --git a/src/genworld_gui.cpp b/src/genworld_gui.cpp
index 5efbe7271f..ab3fa10c89 100644
--- a/src/genworld_gui.cpp
+++ b/src/genworld_gui.cpp
@@ -52,11 +52,11 @@ extern void MakeNewgameSettingsLive();
  * Changes landscape type and sets genworld window dirty
  * @param landscape new landscape type
  */
-static inline void SetNewLandscapeType(byte landscape)
+void SetNewLandscapeType(byte landscape)
 {
 	_settings_newgame.game_creation.landscape = landscape;
-	SetWindowClassesDirty(WC_SELECT_GAME);
-	SetWindowClassesDirty(WC_GENERATE_LANDSCAPE);
+	InvalidateWindowClassesData(WC_SELECT_GAME);
+	InvalidateWindowClassesData(WC_GENERATE_LANDSCAPE);
 }
 
 /** Widgets of GenerateLandscapeWindow */
@@ -363,6 +363,8 @@ struct GenerateLandscapeWindow : public QueryStringBaseWindow {
 		this->afilter = CS_NUMERAL;
 
 		this->mode = (GenenerateLandscapeWindowMode)this->window_number;
+
+		this->OnInvalidateData();
 	}
 
 
@@ -400,6 +402,15 @@ struct GenerateLandscapeWindow : public QueryStringBaseWindow {
 		}
 	}
 
+	virtual void OnInvalidateData(int data = 0)
+	{
+		/* Update the climate buttons */
+		this->SetWidgetLoweredState(GLAND_TEMPERATE, _settings_newgame.game_creation.landscape == LT_TEMPERATE);
+		this->SetWidgetLoweredState(GLAND_ARCTIC,    _settings_newgame.game_creation.landscape == LT_ARCTIC);
+		this->SetWidgetLoweredState(GLAND_TROPICAL,  _settings_newgame.game_creation.landscape == LT_TROPIC);
+		this->SetWidgetLoweredState(GLAND_TOYLAND,   _settings_newgame.game_creation.landscape == LT_TOYLAND);
+	}
+
 	virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
 	{
 		const StringID *strs = NULL;
@@ -509,11 +520,6 @@ struct GenerateLandscapeWindow : public QueryStringBaseWindow {
 		this->SetWidgetDisabledState(GLAND_SNOW_LEVEL_DOWN, _settings_newgame.game_creation.snow_line_height <= MIN_SNOWLINE_HEIGHT || _settings_newgame.game_creation.landscape != LT_ARCTIC);
 		this->SetWidgetDisabledState(GLAND_SNOW_LEVEL_UP,   _settings_newgame.game_creation.snow_line_height >= MAX_SNOWLINE_HEIGHT || _settings_newgame.game_creation.landscape != LT_ARCTIC);
 
-		this->SetWidgetLoweredState(GLAND_TEMPERATE, _settings_newgame.game_creation.landscape == LT_TEMPERATE);
-		this->SetWidgetLoweredState(GLAND_ARCTIC,    _settings_newgame.game_creation.landscape == LT_ARCTIC);
-		this->SetWidgetLoweredState(GLAND_TROPICAL,  _settings_newgame.game_creation.landscape == LT_TROPIC);
-		this->SetWidgetLoweredState(GLAND_TOYLAND,   _settings_newgame.game_creation.landscape == LT_TOYLAND);
-
 		this->DrawWidgets();
 
 		this->DrawEditBox(GLAND_RANDOM_EDITBOX);
diff --git a/src/intro_gui.cpp b/src/intro_gui.cpp
index 5cb4a38907..dc8befb75e 100644
--- a/src/intro_gui.cpp
+++ b/src/intro_gui.cpp
@@ -30,12 +30,6 @@
 #include "table/strings.h"
 #include "table/sprites.h"
 
-static inline void SetNewLandscapeType(byte landscape)
-{
-	_settings_newgame.game_creation.landscape = landscape;
-	SetWindowClassesDirty(WC_SELECT_GAME);
-}
-
 enum SelectGameIntroWidgets {
 	SGI_GENERATE_GAME,
 	SGI_LOAD_GAME,
@@ -61,11 +55,10 @@ struct SelectGameWindow : public Window {
 	SelectGameWindow(const WindowDesc *desc) : Window()
 	{
 		this->InitNested(desc);
-		this->LowerWidget(_settings_newgame.game_creation.landscape + SGI_TEMPERATE_LANDSCAPE);
-		this->SetLandscapeButtons();
+		this->OnInvalidateData();
 	}
 
-	void SetLandscapeButtons()
+	virtual void OnInvalidateData(int data = 0)
 	{
 		this->SetWidgetLoweredState(SGI_TEMPERATE_LANDSCAPE, _settings_newgame.game_creation.landscape == LT_TEMPERATE);
 		this->SetWidgetLoweredState(SGI_ARCTIC_LANDSCAPE,    _settings_newgame.game_creation.landscape == LT_ARCTIC);
@@ -129,9 +122,7 @@ struct SelectGameWindow : public Window {
 
 			case SGI_TEMPERATE_LANDSCAPE: case SGI_ARCTIC_LANDSCAPE:
 			case SGI_TROPIC_LANDSCAPE: case SGI_TOYLAND_LANDSCAPE:
-				this->RaiseWidget(_settings_newgame.game_creation.landscape + SGI_TEMPERATE_LANDSCAPE);
 				SetNewLandscapeType(widget - SGI_TEMPERATE_LANDSCAPE);
-				this->SetLandscapeButtons();
 				break;
 
 			case SGI_OPTIONS:         ShowGameOptions(); break;