(svn r24738) -Codechange: Remove Textbuf::Initialize in favour of a constructor.

15 files changed, 29 insertions, 62 deletions

diff --git a/src/ai/ai_gui.cpp b/src/ai/ai_gui.cpp
index 875ccbffb..303b08f17 100644
--- a/src/ai/ai_gui.cpp
+++ b/src/ai/ai_gui.cpp
@@ -1031,11 +1031,9 @@ struct AIDebugWindow : public QueryStringBaseWindow {
 		this->last_vscroll_pos = 0;
 		this->autoscroll = true;
 		this->highlight_row = -1;
-		this->text.Initialize(this->edit_str_buf, this->edit_str_size);
 
 		/* Restore the break string value from static variable */
-		strecpy(this->edit_str_buf, this->break_string, this->edit_str_buf + MAX_BREAK_STR_STRING_LENGTH);
-		this->text.UpdateSize();
+		this->text.Assign(this->break_string);
 
 		/* Restore button state from static class variables */
 		if (ai_debug_company == OWNER_DEITY) {
diff --git a/src/console_gui.cpp b/src/console_gui.cpp
index ac7df2020..2cbb5f3df 100644
--- a/src/console_gui.cpp
+++ b/src/console_gui.cpp
@@ -126,7 +126,7 @@ struct IConsoleLine {
 
 
 /* ** main console cmd buffer ** */
-static Textbuf _iconsole_cmdline;
+static Textbuf _iconsole_cmdline(ICON_CMDLN_SIZE);
 static char *_iconsole_history[ICON_HISTORY_SIZE];
 static int _iconsole_historypos;
 IConsoleModes _iconsole_mode;
@@ -356,10 +356,6 @@ void IConsoleGUIInit()
 	IConsoleLine::Reset();
 	memset(_iconsole_history, 0, sizeof(_iconsole_history));
 
-	_iconsole_cmdline.buf = CallocT<char>(ICON_CMDLN_SIZE); // create buffer and zero it
-	_iconsole_cmdline.max_bytes = ICON_CMDLN_SIZE;
-	_iconsole_cmdline.max_chars = ICON_CMDLN_SIZE;
-
 	IConsolePrintF(CC_WARNING, "OpenTTD Game Console Revision 7 - %s", _openttd_revision);
 	IConsolePrint(CC_WHITE,  "------------------------------------");
 	IConsolePrint(CC_WHITE,  "use \"help\" for more information");
@@ -374,7 +370,6 @@ void IConsoleClearBuffer()
 
 void IConsoleGUIFree()
 {
-	free(_iconsole_cmdline.buf);
 	IConsoleClearBuffer();
 }
 
diff --git a/src/fios_gui.cpp b/src/fios_gui.cpp
index 8cf3c840a..6eac9315e 100644
--- a/src/fios_gui.cpp
+++ b/src/fios_gui.cpp
@@ -239,6 +239,7 @@ public:
 	void GenerateFileName()
 	{
 		GenerateDefaultSaveName(this->edit_str_buf, &this->edit_str_buf[this->edit_str_size - 1]);
+		this->text.UpdateSize();
 	}
 
 	SaveLoadWindow(const WindowDesc *desc, SaveLoadDialogMode mode) : QueryStringBaseWindow(64)
@@ -258,13 +259,12 @@ public:
 		switch (mode) {
 			case SLD_SAVE_GAME:     this->GenerateFileName(); break;
 			case SLD_SAVE_HEIGHTMAP:
-			case SLD_SAVE_SCENARIO: strecpy(this->edit_str_buf, "UNNAMED", &this->edit_str_buf[edit_str_size - 1]); break;
+			case SLD_SAVE_SCENARIO: this->text.Assign("UNNAMED"); break;
 			default:                break;
 		}
 
 		this->ok_button = WID_SL_SAVE_GAME;
 		this->afilter = CS_ALPHANUMERAL;
-		this->text.Initialize(this->edit_str_buf, this->edit_str_size);
 
 		this->CreateNestedTree(desc, true);
 		if (mode == SLD_LOAD_GAME) this->GetWidget<NWidgetStacked>(WID_SL_CONTENT_DOWNLOAD_SEL)->SetDisplayedPlane(SZSP_HORIZONTAL);
@@ -639,8 +639,6 @@ public:
 				/* Reset file name to current date on successful delete */
 				if (_saveload_mode == SLD_SAVE_GAME) GenerateFileName();
 			}
-
-			this->text.UpdateSize();
 		} else if (this->IsWidgetLowered(WID_SL_SAVE_GAME)) { // Save button clicked
 			if (_saveload_mode  == SLD_SAVE_GAME || _saveload_mode == SLD_SAVE_SCENARIO) {
 				_switch_mode = SM_SAVE_GAME;
diff --git a/src/genworld_gui.cpp b/src/genworld_gui.cpp
index 81ffd6a86..1e6914696 100644
--- a/src/genworld_gui.cpp
+++ b/src/genworld_gui.cpp
@@ -316,9 +316,7 @@ struct GenerateLandscapeWindow : public QueryStringBaseWindow {
 
 		this->LowerWidget(_settings_newgame.game_creation.landscape + WID_GL_TEMPERATE);
 
-		/* snprintf() always outputs trailing '\0', so whole buffer can be used */
-		snprintf(this->edit_str_buf, this->edit_str_size, "%u", _settings_newgame.game_creation.generation_seed);
-		this->text.Initialize(this->edit_str_buf, this->edit_str_size);
+		this->text.Print("%u", _settings_newgame.game_creation.generation_seed);
 		this->caption = STR_NULL;
 		this->afilter = CS_NUMERAL;
 
diff --git a/src/misc_gui.cpp b/src/misc_gui.cpp
index 1391dbada..a933fb7da 100644
--- a/src/misc_gui.cpp
+++ b/src/misc_gui.cpp
@@ -828,6 +828,8 @@ struct QueryStringWindow : public QueryStringBaseWindow
 			*Utf8PrevChar(this->edit_str_buf + strlen(this->edit_str_buf)) = '\0';
 		}
 
+		this->text.UpdateSize();
+
 		if ((flags & QSF_ACCEPT_UNCHANGED) == 0) this->orig = strdup(this->edit_str_buf);
 
 		this->caption = caption;
@@ -835,7 +837,6 @@ struct QueryStringWindow : public QueryStringBaseWindow
 		this->ok_button = WID_QS_OK;
 		this->afilter = afilter;
 		this->flags = flags;
-		this->text.Initialize(this->edit_str_buf, max_bytes, max_chars);
 
 		this->InitNested(desc, WN_QUERY_STRING);
 
diff --git a/src/network/network_chat_gui.cpp b/src/network/network_chat_gui.cpp
index 2e0be50ba..af5782037 100644
--- a/src/network/network_chat_gui.cpp
+++ b/src/network/network_chat_gui.cpp
@@ -302,7 +302,6 @@ struct NetworkChatWindow : public QueryStringBaseWindow {
 		this->cancel_button = WID_NC_CLOSE;
 		this->ok_button = WID_NC_SENDBUTTON;
 		this->afilter = CS_ALPHANUMERAL;
-		this->text.Initialize(this->edit_str_buf, this->edit_str_size);
 
 		static const StringID chat_captions[] = {
 			STR_NETWORK_CHAT_ALL_CAPTION,
diff --git a/src/network/network_content_gui.cpp b/src/network/network_content_gui.cpp
index 0df8f8f99..5aa4818f5 100644
--- a/src/network/network_content_gui.cpp
+++ b/src/network/network_content_gui.cpp
@@ -417,7 +417,6 @@ public:
 		this->GetWidget<NWidgetStacked>(WID_NCL_SEL_ALL_UPDATE)->SetDisplayedPlane(select_all);
 
 		this->afilter = CS_ALPHANUMERAL;
-		this->text.Initialize(this->edit_str_buf, this->edit_str_size);
 		this->SetFocusedWidget(WID_NCL_FILTER);
 
 		_network_content_client.AddCallback(this);
diff --git a/src/network/network_gui.cpp b/src/network/network_gui.cpp
index a88d28a26..b5e48c4b0 100644
--- a/src/network/network_gui.cpp
+++ b/src/network/network_gui.cpp
@@ -444,9 +444,8 @@ public:
 		this->vscroll = this->GetScrollbar(WID_NG_SCROLLBAR);
 		this->FinishInitNested(desc, WN_NETWORK_WINDOW_GAME);
 
-		ttd_strlcpy(this->edit_str_buf, _settings_client.network.client_name, this->edit_str_size);
+		this->text.Assign(_settings_client.network.client_name);
 		this->afilter = CS_ALPHANUMERAL;
-		this->text.Initialize(this->edit_str_buf, this->edit_str_size);
 		this->SetFocusedWidget(WID_NG_CLIENT);
 
 		this->last_joined = NetworkGameListAddItem(NetworkAddress(_settings_client.network.last_host, _settings_client.network.last_port));
@@ -1006,10 +1005,9 @@ struct NetworkStartServerWindow : public QueryStringBaseWindow {
 	{
 		this->InitNested(desc, WN_NETWORK_WINDOW_START);
 
-		ttd_strlcpy(this->edit_str_buf, _settings_client.network.server_name, this->edit_str_size);
+		this->text.Assign(_settings_client.network.server_name);
 
 		this->afilter = CS_ALPHANUMERAL;
-		this->text.Initialize(this->edit_str_buf, this->edit_str_size);
 		this->SetFocusedWidget(WID_NSS_GAMENAME);
 	}
 
@@ -2112,7 +2110,6 @@ struct NetworkCompanyPasswordWindow : public QueryStringBaseWindow {
 		this->cancel_button = WID_NCP_CANCEL;
 		this->ok_button = WID_NCP_OK;
 		this->afilter = CS_ALPHANUMERAL;
-		this->text.Initialize(this->edit_str_buf, this->edit_str_size);
 		this->SetFocusedWidget(WID_NCP_PASSWORD);
 	}
 
diff --git a/src/newgrf_gui.cpp b/src/newgrf_gui.cpp
index 827e694ff..e83259d4e 100644
--- a/src/newgrf_gui.cpp
+++ b/src/newgrf_gui.cpp
@@ -637,7 +637,6 @@ struct NewGRFWindow : public QueryStringBaseWindow, NewGRFScanCallback {
 		this->GetWidget<NWidgetStacked>(WID_NS_SHOW_APPLY)->SetDisplayedPlane(this->editable ? 0 : this->show_params ? 1 : SZSP_HORIZONTAL);
 		this->FinishInitNested(desc, WN_GAME_OPTIONS_NEWGRF_STATE);
 
-		this->text.Initialize(this->edit_str_buf, this->edit_str_size);
 		this->SetFocusedWidget(WID_NS_FILTER);
 
 		this->avails.SetListing(this->last_sorting);
diff --git a/src/querystring_gui.h b/src/querystring_gui.h
index 0eebd6206..1ce9b93f7 100644
--- a/src/querystring_gui.h
+++ b/src/querystring_gui.h
@@ -40,9 +40,11 @@ struct QueryString {
 	bool handled;
 
 	/**
-	 * Make sure everything gets initialized properly.
+	 * Initialize string.
+	 * @param size Maximum size in bytes.
+	 * @param chars Maximum size in chars.
 	 */
-	QueryString() : ok_button(-1), cancel_button(-1), orig(NULL)
+	QueryString(uint16 size, uint16 chars = UINT16_MAX) : ok_button(-1), cancel_button(-1), text(size, chars), orig(NULL)
 	{
 	}
 
@@ -67,16 +69,10 @@ struct QueryStringBaseWindow : public Window, public QueryString {
 	const uint16 edit_str_size; ///< Maximum length of string (in bytes), including terminating '\0'.
 	const uint16 max_chars;     ///< Maximum length of string (in characters), including terminating '\0'.
 
-	QueryStringBaseWindow(uint16 size, uint16 chars = UINT16_MAX) : Window(), edit_str_size(size), max_chars(chars == UINT16_MAX ? size : chars)
+	QueryStringBaseWindow(uint16 size, uint16 chars = UINT16_MAX) : Window(), QueryString(size, chars), edit_str_buf(text.buf), edit_str_size(text.max_bytes), max_chars(text.max_chars)
 	{
-		assert(size != 0);
-		this->edit_str_buf = CallocT<char>(size);
 	}
 
-	~QueryStringBaseWindow()
-	{
-		free(this->edit_str_buf);
-	}
 };
 
 void ShowOnScreenKeyboard(QueryStringBaseWindow *parent, int button);
diff --git a/src/settings_gui.cpp b/src/settings_gui.cpp
index 720bdac1a..cf2981418 100644
--- a/src/settings_gui.cpp
+++ b/src/settings_gui.cpp
@@ -2002,7 +2002,6 @@ struct GameSettingsWindow : QueryStringBaseWindow {
 		this->vscroll = this->GetScrollbar(WID_GS_SCROLLBAR);
 		this->FinishInitNested(desc, WN_GAME_OPTIONS_GAME_SETTINGS);
 
-		this->text.Initialize(this->edit_str_buf, this->edit_str_size);
 		this->SetFocusedWidget(WID_GS_FILTER);
 
 		this->InvalidateData();
diff --git a/src/signs_gui.cpp b/src/signs_gui.cpp
index a7af05dbf..09739e6f5 100644
--- a/src/signs_gui.cpp
+++ b/src/signs_gui.cpp
@@ -159,8 +159,6 @@ struct SignListWindow : QueryStringBaseWindow, SignList {
 		this->ok_button = WID_SIL_FILTER_ENTER_BTN;
 		this->cancel_button = WID_SIL_FILTER_CLEAR_BTN;
 		this->afilter = CS_ALPHANUMERAL;
-		this->text.Initialize(this->edit_str_buf, MAX_LENGTH_SIGN_NAME_CHARS * MAX_CHAR_LENGTH, MAX_LENGTH_SIGN_NAME_CHARS);
-		ClearFilterTextWidget();
 
 		/* Initialize the filtering variables */
 		this->SetFilterString("");
@@ -450,19 +448,15 @@ struct SignWindow : QueryStringBaseWindow, SignList {
 
 	void UpdateSignEditWindow(const Sign *si)
 	{
-		char *last_of = &this->edit_str_buf[this->edit_str_size - 1]; // points to terminating '\0'
-
 		/* Display an empty string when the sign hasnt been edited yet */
 		if (si->name != NULL) {
 			SetDParam(0, si->index);
-			GetString(this->edit_str_buf, STR_SIGN_NAME, last_of);
+			this->text.Assign(STR_SIGN_NAME);
 		} else {
-			GetString(this->edit_str_buf, STR_EMPTY, last_of);
+			this->text.DeleteAll();
 		}
-		*last_of = '\0';
 
 		this->cur_sign = si->index;
-		this->text.Initialize(this->edit_str_buf, this->edit_str_size, this->max_chars);
 
 		this->SetWidgetDirty(WID_QES_TEXT);
 		this->SetFocusedWidget(WID_QES_TEXT);
diff --git a/src/textbuf.cpp b/src/textbuf.cpp
index 0816c5dcf..fe32712dc 100644
--- a/src/textbuf.cpp
+++ b/src/textbuf.cpp
@@ -18,6 +18,7 @@
 #include "gfx_type.h"
 #include "gfx_func.h"
 #include "window_func.h"
+#include "core/alloc_func.hpp"
 
 /**
  * Try to retrive the current clipboard contents.
@@ -355,29 +356,23 @@ bool Textbuf::MovePos(int navmode)
  * and the maximum length of this buffer
  * @param buf the buffer that will be holding the data for input
  * @param max_bytes maximum size in bytes, including terminating '\0'
- */
-void Textbuf::Initialize(char *buf, uint16 max_bytes)
-{
-	this->Initialize(buf, max_bytes, max_bytes);
-}
-
-/**
- * Initialize the textbuffer by supplying it the buffer to write into
- * and the maximum length of this buffer
- * @param buf the buffer that will be holding the data for input
- * @param max_bytes maximum size in bytes, including terminating '\0'
  * @param max_chars maximum size in chars, including terminating '\0'
  */
-void Textbuf::Initialize(char *buf, uint16 max_bytes, uint16 max_chars)
+Textbuf::Textbuf(uint16 max_bytes, uint16 max_chars)
+	: buf(MallocT<char>(max_bytes))
 {
 	assert(max_bytes != 0);
 	assert(max_chars != 0);
 
-	this->buf        = buf;
 	this->max_bytes  = max_bytes;
-	this->max_chars  = max_chars;
+	this->max_chars  = max_chars == UINT16_MAX ? max_bytes : max_chars;
 	this->caret      = true;
-	this->UpdateSize();
+	this->DeleteAll();
+}
+
+Textbuf::~Textbuf()
+{
+	free(this->buf);
 }
 
 /**
diff --git a/src/textbuf_type.h b/src/textbuf_type.h
index 77a957f84..8d38e8b8a 100644
--- a/src/textbuf_type.h
+++ b/src/textbuf_type.h
@@ -17,7 +17,7 @@
 
 /** Helper/buffer for input fields. */
 struct Textbuf {
-	char *buf;                ///< buffer in which text is saved
+	char * const buf;         ///< buffer in which text is saved
 	uint16 max_bytes;         ///< the maximum size of the buffer in bytes (including terminating '\0')
 	uint16 max_chars;         ///< the maximum size of the buffer in characters (including terminating '\0')
 	uint16 bytes;             ///< the current size of the string in bytes (including terminating '\0')
@@ -27,8 +27,8 @@ struct Textbuf {
 	uint16 caretpos;          ///< the current position of the caret in the buffer, in bytes
 	uint16 caretxoffs;        ///< the current position of the caret in pixels
 
-	void Initialize(char *buf, uint16 max_bytes);
-	void Initialize(char *buf, uint16 max_bytes, uint16 max_chars);
+	explicit Textbuf(uint16 max_bytes, uint16 max_chars = UINT16_MAX);
+	~Textbuf();
 
 	void Assign(StringID string);
 	void Assign(const char *text);
diff --git a/src/town_gui.cpp b/src/town_gui.cpp
index dba12cac7..9634383f9 100644
--- a/src/town_gui.cpp
+++ b/src/town_gui.cpp
@@ -995,7 +995,6 @@ public:
 			params(_settings_game.game_creation.town_name)
 	{
 		this->InitNested(desc, window_number);
-		this->text.Initialize(this->edit_str_buf, this->edit_str_size, this->max_chars);
 		this->RandomTownName();
 		this->UpdateButtons(true);
 	}