(svn r13321) -Codechange: move some GUI/viewport related functions out op openttd.cpp to viewport.cpp/window.cpp.

4 files changed, 91 insertions, 88 deletions

diff --git a/src/openttd.cpp b/src/openttd.cpp
index 1ece64737..bd386f5bf 100644
--- a/src/openttd.cpp
+++ b/src/openttd.cpp
@@ -23,10 +23,7 @@
 #include "gui.h"
 #include "mixer.h"
 #include "sound_func.h"
-#include "viewport_func.h"
 #include "window_func.h"
-#include "window_gui.h"
-#include "zoom_func.h"
 
 #include "debug.h"
 #include "saveload.h"
@@ -341,8 +338,6 @@ static void LoadIntroGame()
 
 	_pause_game = 0;
 	SetLocalPlayer(PLAYER_FIRST);
-	/* Make sure you can't scroll in the menu */
-	_scrolling_viewport = 0;
 	_cursor.fix_at = false;
 	MarkWholeScreenDirty();
 
@@ -1070,53 +1065,6 @@ static void DoAutosave()
 	}
 }
 
-static void ScrollMainViewport(int x, int y)
-{
-	if (_game_mode != GM_MENU) {
-		Window *w = FindWindowById(WC_MAIN_WINDOW, 0);
-		assert(w);
-
-		w->viewport->dest_scrollpos_x += ScaleByZoom(x, w->viewport->zoom);
-		w->viewport->dest_scrollpos_y += ScaleByZoom(y, w->viewport->zoom);
-	}
-}
-
-/**
- * Describes all the different arrow key combinations the game allows
- * when it is in scrolling mode.
- * The real arrow keys are bitwise numbered as
- * 1 = left
- * 2 = up
- * 4 = right
- * 8 = down
- */
-static const int8 scrollamt[16][2] = {
-	{ 0,  0}, ///<  no key specified
-	{-2,  0}, ///<  1 : left
-	{ 0, -2}, ///<  2 : up
-	{-2, -1}, ///<  3 : left  + up
-	{ 2,  0}, ///<  4 : right
-	{ 0,  0}, ///<  5 : left  + right = nothing
-	{ 2, -1}, ///<  6 : right + up
-	{ 0, -2}, ///<  7 : right + left  + up = up
-	{ 0  ,2}, ///<  8 : down
-	{-2  ,1}, ///<  9 : down  + left
-	{ 0,  0}, ///< 10 : down  + up    = nothing
-	{-2,  0}, ///< 11 : left  + up    +  down = left
-	{ 2,  1}, ///< 12 : down  + right
-	{ 0,  2}, ///< 13 : left  + right +  down = down
-	{ 2,  0}, ///< 14 : right + up    +  down = right
-	{ 0,  0}, ///< 15 : left  + up    +  right + down  = nothing
-};
-
-static void HandleKeyScrolling()
-{
-	if (_dirkeys && !_no_scroll) {
-		int factor = _shift_pressed ? 50 : 10;
-		ScrollMainViewport(scrollamt[_dirkeys][0] * factor, scrollamt[_dirkeys][1] * factor);
-	}
-}
-
 void GameLoop()
 {
 	ProcessAsyncSaveFinish();
@@ -1128,9 +1076,6 @@ void GameLoop()
 		RedrawAutosave();
 	}
 
-	/* handle scrolling of the main window */
-	HandleKeyScrolling();
-
 	/* make a screenshot? */
 	if (IsScreenshotRequested()) ShowScreenshotResult(MakeScreenshot());
 
@@ -1143,12 +1088,6 @@ void GameLoop()
 	IncreaseSpriteLRU();
 	InteractiveRandom();
 
-	if (_scroller_click_timeout > 3) {
-		_scroller_click_timeout -= 3;
-	} else {
-		_scroller_click_timeout = 0;
-	}
-
 	_caret_timer += 3;
 	_palette_animation_counter += 8;
 	CursorTick();
@@ -1182,17 +1121,6 @@ void GameLoop()
 	MusicLoop();
 }
 
-void BeforeSaveGame()
-{
-	const Window *w = FindWindowById(WC_MAIN_WINDOW, 0);
-
-	if (w != NULL) {
-		_saved_scrollpos_x = w->viewport->scrollpos_x;
-		_saved_scrollpos_y = w->viewport->scrollpos_y;
-		_saved_scrollpos_zoom = w->viewport->zoom;
-	}
-}
-
 static void ConvertTownOwner()
 {
 	for (TileIndex tile = 0; tile != MapSize(); tile++) {
@@ -1298,20 +1226,8 @@ static bool InitializeWindowsAndCaches()
 	ResetWindowSystem();
 	SetupColorsAndInitialWindow();
 
-	Window *w = FindWindowById(WC_MAIN_WINDOW, 0);
-
-	w->viewport->scrollpos_x = _saved_scrollpos_x;
-	w->viewport->scrollpos_y = _saved_scrollpos_y;
-	w->viewport->dest_scrollpos_x = _saved_scrollpos_x;
-	w->viewport->dest_scrollpos_y = _saved_scrollpos_y;
-
-	ViewPort *vp = w->viewport;
-	vp->zoom = min(_saved_scrollpos_zoom, ZOOM_LVL_MAX);
-	vp->virtual_width = ScaleByZoom(vp->width, vp->zoom);
-	vp->virtual_height = ScaleByZoom(vp->height, vp->zoom);
-
-	DoZoomInOutWindow(ZOOM_NONE, w); // update button status
-	MarkWholeScreenDirty();
+	extern void ResetViewportAfterLoadGame();
+	ResetViewportAfterLoadGame();
 
 	/* Update coordinates of the signs. */
 	UpdateAllStationVirtCoord();
diff --git a/src/saveload.cpp b/src/saveload.cpp
index 76267236a..83bec4e77 100644
--- a/src/saveload.cpp
+++ b/src/saveload.cpp
@@ -1473,7 +1473,7 @@ static const SaveLoadFormat *GetSavegameFormat(const char *s)
 /* actual loader/saver function */
 void InitializeGame(uint size_x, uint size_y, bool reset_date);
 extern bool AfterLoadGame();
-extern void BeforeSaveGame();
+extern void SaveViewportBeforeSaveGame();
 extern bool LoadOldSaveGame(const char *file);
 
 /** Small helper function to close the to be loaded savegame an signal error */
@@ -1673,7 +1673,7 @@ SaveOrLoadResult SaveOrLoad(const char *filename, int mode, Subdirectory sb)
 
 			_sl_version = SAVEGAME_VERSION;
 
-			BeforeSaveGame();
+			SaveViewportBeforeSaveGame();
 			SlSaveChunks();
 			SlWriteFill(); // flush the save buffer
 
diff --git a/src/viewport.cpp b/src/viewport.cpp
index 51eee159e..bbc029446 100644
--- a/src/viewport.cpp
+++ b/src/viewport.cpp
@@ -2756,3 +2756,33 @@ void ResetObjectToPlace()
 {
 	SetObjectToPlace(SPR_CURSOR_MOUSE, PAL_NONE, VHM_NONE, WC_MAIN_WINDOW, 0);
 }
+
+
+void SaveViewportBeforeSaveGame()
+{
+	const Window *w = FindWindowById(WC_MAIN_WINDOW, 0);
+
+	if (w != NULL) {
+		_saved_scrollpos_x = w->viewport->scrollpos_x;
+		_saved_scrollpos_y = w->viewport->scrollpos_y;
+		_saved_scrollpos_zoom = w->viewport->zoom;
+	}
+}
+
+void ResetViewportAfterLoadGame()
+{
+	Window *w = FindWindowById(WC_MAIN_WINDOW, 0);
+
+	w->viewport->scrollpos_x = _saved_scrollpos_x;
+	w->viewport->scrollpos_y = _saved_scrollpos_y;
+	w->viewport->dest_scrollpos_x = _saved_scrollpos_x;
+	w->viewport->dest_scrollpos_y = _saved_scrollpos_y;
+
+	ViewPort *vp = w->viewport;
+	vp->zoom = min(_saved_scrollpos_zoom, ZOOM_LVL_MAX);
+	vp->virtual_width = ScaleByZoom(vp->width, vp->zoom);
+	vp->virtual_height = ScaleByZoom(vp->height, vp->zoom);
+
+	DoZoomInOutWindow(ZOOM_NONE, w); // update button status
+	MarkWholeScreenDirty();
+}
diff --git a/src/window.cpp b/src/window.cpp
index 33fe7d1a0..c79b436ec 100644
--- a/src/window.cpp
+++ b/src/window.cpp
@@ -1021,6 +1021,7 @@ void InitWindowSystem()
 	_last_z_window = _z_windows;
 	_mouseover_last_w = NULL;
 	_no_scroll = 0;
+	_scrolling_viewport = 0;
 }
 
 /**
@@ -1707,6 +1708,55 @@ enum MouseClick {
 extern void UpdateTileSelection();
 extern bool VpHandlePlaceSizingDrag();
 
+static void ScrollMainViewport(int x, int y)
+{
+	if (_game_mode != GM_MENU) {
+		Window *w = FindWindowById(WC_MAIN_WINDOW, 0);
+		assert(w);
+
+		w->viewport->dest_scrollpos_x += ScaleByZoom(x, w->viewport->zoom);
+		w->viewport->dest_scrollpos_y += ScaleByZoom(y, w->viewport->zoom);
+	}
+}
+
+/**
+ * Describes all the different arrow key combinations the game allows
+ * when it is in scrolling mode.
+ * The real arrow keys are bitwise numbered as
+ * 1 = left
+ * 2 = up
+ * 4 = right
+ * 8 = down
+ */
+static const int8 scrollamt[16][2] = {
+	{ 0,  0}, ///<  no key specified
+	{-2,  0}, ///<  1 : left
+	{ 0, -2}, ///<  2 : up
+	{-2, -1}, ///<  3 : left  + up
+	{ 2,  0}, ///<  4 : right
+	{ 0,  0}, ///<  5 : left  + right = nothing
+	{ 2, -1}, ///<  6 : right + up
+	{ 0, -2}, ///<  7 : right + left  + up = up
+	{ 0  ,2}, ///<  8 : down
+	{-2  ,1}, ///<  9 : down  + left
+	{ 0,  0}, ///< 10 : down  + up    = nothing
+	{-2,  0}, ///< 11 : left  + up    +  down = left
+	{ 2,  1}, ///< 12 : down  + right
+	{ 0,  2}, ///< 13 : left  + right +  down = down
+	{ 2,  0}, ///< 14 : right + up    +  down = right
+	{ 0,  0}, ///< 15 : left  + up    +  right + down  = nothing
+};
+
+static bool HandleKeyScrolling()
+{
+	if (_dirkeys && !_no_scroll) {
+		int factor = _shift_pressed ? 50 : 10;
+		ScrollMainViewport(scrollamt[_dirkeys][0] * factor, scrollamt[_dirkeys][1] * factor);
+		return false;
+	}
+	return true;
+}
+
 void MouseLoop(MouseClick click, int mousewheel)
 {
 	DecreaseWindowCounters();
@@ -1718,6 +1768,7 @@ void MouseLoop(MouseClick click, int mousewheel)
 	if (!HandleScrollbarScrolling()) return;
 	if (!HandleViewportScroll())     return;
 	if (!HandleMouseOver())          return;
+	if (!HandleKeyScrolling())       return;
 
 	bool scrollwheel_scrolling = _settings.gui.scrollwheel_scrolling == 1 && (_cursor.v_wheel != 0 || _cursor.h_wheel != 0);
 	if (click == MC_NONE && mousewheel == 0 && !scrollwheel_scrolling) return;
@@ -1979,6 +2030,12 @@ void InvalidateWindowClassesData(WindowClass cls, int data)
  */
 void CallWindowTickEvent()
 {
+	if (_scroller_click_timeout > 3) {
+		_scroller_click_timeout -= 3;
+	} else {
+		_scroller_click_timeout = 0;
+	}
+
 	for (Window * const *wz = _last_z_window; wz != _z_windows;) {
 		(*--wz)->OnTick();
 	}