//
// Copyright 2020 Electronic Arts Inc.
//
// TiberianDawn.DLL and RedAlert.dll and corresponding source code is free
// software: you can redistribute it and/or modify it under the terms of
// the GNU General Public License as published by the Free Software Foundation,
// either version 3 of the License, or (at your option) any later version.
// TiberianDawn.DLL and RedAlert.dll and corresponding source code is distributed
// in the hope that it will be useful, but with permitted additional restrictions
// under Section 7 of the GPL. See the GNU General Public License in LICENSE.TXT
// distributed with this program. You should have received a copy of the
// GNU General Public License along with permitted additional restrictions
// with this program. If not, see https://github.com/electronicarts/CnC_Remastered_Collection
/* $Header: /CounterStrike/MSGLIST.CPP 2 3/04/97 2:52p Joe_bostic $ */
/***************************************************************************
*** C O N F I D E N T I A L --- W E S T W O O D S T U D I O S ***
* *
* Project Name : Command & Conquer *
* *
* File Name : MSGLIST.CPP *
* *
* Programmer : Bill R. Randolph *
* *
* Start Date : 05/22/95 *
* *
* Last Update : March 4, 1997 [JLB] *
* *
*-------------------------------------------------------------------------*
* Functions: *
* MessageListClass::MessageListClass -- constructor *
* MessageListClass::~MessageListClass -- destructor *
* MessageListClass::Init -- Inits message system, sets options *
* MessageListClass::Add_Message -- displays the given message *
* MessageListClass::Get_Message -- retrieves given message *
* MessageListClass::Get_Label -- retrieves given text label *
* MessageListClass::Concat_Message -- concats the given message *
* MessageListClass::Add_Edit -- Adds editable string to message list *
* MessageListClass::Remove_Edit -- removes the edit field *
* MessageListClass::Get_Edit_Buf -- gets edit buffer *
* MessageListClass::Set_Edit_Color -- sets color of edit gizmo *
* MessageListClass::Manage -- Manages multiplayer messages *
* MessageListClass::Input -- Handles input for sending messages *
* MessageListClass::Draw -- Draws the messages *
* MessageListClass::Num_Messages -- returns # messages in the list *
* MessageListClass::Set_Width -- sets allowable width of messages *
* MessageListClass::Trim_Message -- trims chars off start of message *
* MessageListClass::Compute_Y -- recomputes y-coord for all messages *
* MessageListClass::Reset -- Reset so no messages are visible. *
* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
#include "function.h"
/**************************** Globals **************************************/
/***************************************************************************
* MessageListClass::MessageListClass -- constructor *
* *
* INPUT: *
* x,y coord of upper-left of top message *
* max_msg max messages allowed, including edit message *
* *
* OUTPUT: *
* none. *
* *
* WARNINGS: *
* none. *
* *
* HISTORY: *
* 05/21/1995 BRR : Created. *
*=========================================================================*/
MessageListClass::MessageListClass(void)
{
int i;
//------------------------------------------------------------------------
// Init all data members
//------------------------------------------------------------------------
MessageList = 0;
MessageX = 0;
MessageY = 0;
MaxMessages = 0;
MaxChars = 0;
Height = 0;
EnableOverflow = 0;
AdjustEdit = 0;
IsEdit = 0;
EditX = 0;
EditY = 0;
EditLabel = 0;
EditBuf[0] = 0;
OverflowBuf[0] = 0;
EditCurPos = 0;
EditInitPos = 0;
CursorChar = 0;
OverflowStart = 0;
OverflowEnd = 0;
for (i = 0; i < MAX_NUM_MESSAGES; i++) {
BufferAvail[i] = 1;
}
} // end of MessageListClass
/***************************************************************************
* MessageListClass::~MessageListClass -- destructor *
* *
* INPUT: *
* x,y coord of upper-left of top message *
* max_msg max messages allowed, including edit message *
* *
* OUTPUT: *
* none. *
* *
* WARNINGS: *
* none. *
* *
* HISTORY: *
* 05/21/1995 BRR : Created. *
*=========================================================================*/
MessageListClass::~MessageListClass()
{
Init(0,0,0,0,0,0,0,0,0,0);
} // end of ~MessageListClass
/***************************************************************************
* MessageListClass::Init -- Inits message system, sets options *
* *
* INPUT: *
* x,y coord of upper-left of top message *
* max_msg max messages allowed, NOT including edit message *
* maxchars max # characters allowed per message *
* height pixel height of a line of text *
* edit_x x-coord of edit field; -1 = put at the top of the *
* other messages *
* edit_y y-coord of edit field; -1 = put at the top of the *
* other messages *
* overflow_on true = enable the overflow typing feature *
* over_start start index for overflow processing *
* over_end end index for overflow processing *
* width pixel width of message buffer *
* *
* OUTPUT: *
* none. *
* *
* WARNINGS: *
* none. *
* *
* HISTORY: *
* 05/21/1995 BRR : Created. *
*=========================================================================*/
void MessageListClass::Init(int x, int y, int max_msg, int maxchars,
int height, int edit_x, int edit_y, int overflow_on, int over_start,
int over_end, int width)
{
TextLabelClass * txtlabel;
int i;
Width = width;
//------------------------------------------------------------------------
// Remove every entry in the list
//------------------------------------------------------------------------
txtlabel = MessageList;
while (txtlabel) {
MessageList = (TextLabelClass *)txtlabel->Remove();
delete txtlabel;
txtlabel = MessageList;
}
//------------------------------------------------------------------------
// Mark all buffers as available
//------------------------------------------------------------------------
for (i = 0; i < MAX_NUM_MESSAGES; i++) {
BufferAvail[i] = 1;
}
//------------------------------------------------------------------------
// Remove the editable message
//------------------------------------------------------------------------
if (IsEdit) {
delete EditLabel;
EditLabel = 0;
}
//------------------------------------------------------------------------
// Init variables
//------------------------------------------------------------------------
MessageList = 0;
MessageX = x;
MessageY = y;
MaxMessages = max_msg;
if (MaxMessages > MAX_NUM_MESSAGES)
MaxMessages = MAX_NUM_MESSAGES;
MaxChars = maxchars;
if (MaxChars > MAX_MESSAGE_LENGTH)
MaxChars = MAX_MESSAGE_LENGTH;
Height = height;
//------------------------------------------------------------------------
// Init the edit field variables. If edit_x or edit_y is -1, place the
// edit field above the other messages; otherwise, place it at the desired
// coords.
//------------------------------------------------------------------------
EnableOverflow = overflow_on;
IsEdit = 0;
if (edit_x == -1 || edit_y == -1) {
AdjustEdit = 1;
EditX = x;
EditY = y;
}
else {
AdjustEdit = 0;
EditX = edit_x;
EditY = edit_y;
}
EditLabel = 0;
EditBuf[0] = 0;
OverflowBuf[0] = 0;
EditCurPos = 0;
EditInitPos = 0;
CursorChar = 0;
//------------------------------------------------------------------------
// Init the overflow processing indices
//------------------------------------------------------------------------
OverflowStart = over_start;
OverflowEnd = over_end;
if (OverflowEnd >= MaxChars) {
OverflowEnd = MaxChars - 1;
}
if (OverflowStart >= OverflowEnd) {
OverflowStart = OverflowEnd - 1;
}
} // end of Init
/***********************************************************************************************
* MessageListClass::Reset -- Reset so no messages are visible. *
* *
* This routine will reset the message list tracker so that any displayed messages are *
* cleared. *
* *
* INPUT: none *
* *
* OUTPUT: none *
* *
* WARNINGS: none *
* *
* HISTORY: *
* 03/04/1997 JLB : Created. *
*=============================================================================================*/
void MessageListClass::Reset(void)
{
//------------------------------------------------------------------------
// Remove every entry in the list
//------------------------------------------------------------------------
TextLabelClass * txtlabel = MessageList;
while (txtlabel) {
MessageList = (TextLabelClass *)txtlabel->Remove();
delete txtlabel;
txtlabel = MessageList;
}
//------------------------------------------------------------------------
// Mark all buffers as available
//------------------------------------------------------------------------
for (int index = 0; index < MAX_NUM_MESSAGES; index++) {
BufferAvail[index] = 1;
}
//------------------------------------------------------------------------
// Remove the editable message
//------------------------------------------------------------------------
if (IsEdit) {
delete EditLabel;
EditLabel = 0;
}
//------------------------------------------------------------------------
// Init variables
//------------------------------------------------------------------------
MessageList = 0;
EditLabel = 0;
IsEdit = 0;
}
extern void On_Message(const char* message, float timeout_seconds, long long message_id);
/***************************************************************************
* MessageListClass::Add_Message -- displays the given message *
* *
* INPUT: *
* name name of sender, NULL = none *
* id numerical ID for this message *
* txt text to display *
* color color to draw text in *
* style style to use *
* timeout # of ticks the thing is supposed to last (-1 = forever) *
* *
* OUTPUT: *
* ptr to new TextLabelClass object. *
* *
* WARNINGS: *
* none. *
* *
* HISTORY: *
* 05/05/1995 BRR : Created. *
* 10/16/1996 JLB : Audio feedback added. *
*=========================================================================*/
TextLabelClass * MessageListClass::Add_Message(char const * name, int id, char const * txt,
PlayerColorType color, TextPrintType style, int timeout)
{
TextLabelClass * txtlabel = NULL;
char message[MAX_MESSAGE_LENGTH + 30];
//------------------------------------------------------------------------
// Combine the name & message text, if there's a name given
//------------------------------------------------------------------------
if (name) {
sprintf(message, "%s:%s", name, txt);
id = -1;
} else {
strcpy(message, txt);
}
#if (0)
int i;
int found;
char temp[MAX_MESSAGE_LENGTH + 30];
int print_this_pass;
char save = 0;
int mess_start;
//------------------------------------------------------------------------
// Check that printing this wont overrun the width of the print area on screen
//------------------------------------------------------------------------
print_this_pass = 0;
Fancy_Text_Print(TXT_NONE, 0, 0, &ColorRemaps[color], TBLACK, style);
int wid = String_Pixel_Width(message);
if (wid >= Width-8) {
//------------------------------------------------------------------------
// Bugger. Its too long. Loop through and find out how many chars we can print
//------------------------------------------------------------------------
if (name) {
sprintf (temp, "%s:", name);
mess_start = strlen (name)+1;
} else {
mess_start = 0;
}
for (int i=1 ; i<(int)strlen(txt) ; i++) {
strncpy (&temp[mess_start], txt, i);
temp [mess_start + i] = 0;
wid = String_Pixel_Width(temp);
if (wid >= Width-8) {
print_this_pass = mess_start + i-1;
break;
}
}
//------------------------------------------------------------------------
// Prematurely terminate the string so it doesn't all print.
// We will re-enter at the end to print the rest.
//------------------------------------------------------------------------
if (print_this_pass) {
save = message [print_this_pass];
message [print_this_pass] = 0;
}
}
//------------------------------------------------------------------------
// Remove the top-most message if we're about to exceed the max allowed
//------------------------------------------------------------------------
if ( (MaxMessages > 0) && ((Num_Messages() + 1) > MaxMessages)) {
txtlabel = MessageList;
if (txtlabel==NULL)
return(NULL);
//.....................................................................
// Remove this message from the list; mark its buffer as being available.
//.....................................................................
MessageList = (TextLabelClass *)txtlabel->Remove();
for (i = 0; i < MAX_NUM_MESSAGES; i++) {
if (txtlabel->Text == MessageBuffers[i])
BufferAvail[i] = 1;
}
delete txtlabel;
}
//------------------------------------------------------------------------
// Create the message
//------------------------------------------------------------------------
txtlabel = new TextLabelClass (message, MessageX, MessageY,
&ColorRemaps[color], style);
if (timeout==-1) {
txtlabel->UserData1 = 0;
}
else {
txtlabel->UserData1 = TickCount + timeout;
}
txtlabel->UserData2 = id;
//------------------------------------------------------------------------
// Find a buffer to store our message in; if there are none, don't add the
// message.
//------------------------------------------------------------------------
found = 0;
for (i = 0; i < MAX_NUM_MESSAGES; i++) {
if (BufferAvail[i]) {
BufferAvail[i] = 0;
memset (MessageBuffers[i],0,MAX_MESSAGE_LENGTH + 30);
strcpy (MessageBuffers[i],message);
txtlabel->Text = MessageBuffers[i];
found = 1;
break;
}
}
if (!found) {
delete txtlabel;
return (NULL);
}
#endif
On_Message(message, timeout * 60.0f / TICKS_PER_MINUTE, id);
//Sound_Effect(VOC_INCOMING_MESSAGE);
#if (0)
//------------------------------------------------------------------------
// Attach the message to our list
//------------------------------------------------------------------------
if (MessageList) {
txtlabel->Add_Tail (*MessageList);
}
else {
MessageList = txtlabel;
}
//------------------------------------------------------------------------
// Recompute all messages' y-coordinate values
//------------------------------------------------------------------------
Compute_Y();
//------------------------------------------------------------------------
// If we terminated the string before the end then we need to reenter to
// add a new message with the rest of the string.
//------------------------------------------------------------------------
if (save) {
message [print_this_pass] = save;
Add_Message (name, id, &message [print_this_pass], color, style, timeout);
}
#endif
return(txtlabel);
} // end of Add_Message
/***************************************************************************
* MessageListClass::Get_Message -- retrieves given message *
* *
* INPUT: *
* id ID of message to get *
* *
* OUTPUT: *
* ptr to message text, NULL if not found *
* *
* WARNINGS: *
* none. *
* *
* HISTORY: *
* 11/07/1995 BRR : Created. *
*=========================================================================*/
char * MessageListClass::Get_Message(int id)
{
TextLabelClass * gadg;
//------------------------------------------------------------------------
// Scan the message list, searching for the given ID
//------------------------------------------------------------------------
if (MessageList) {
gadg = MessageList;
while (gadg) {
if (gadg->UserData2 == id) {
return (gadg->Text);
}
gadg = (TextLabelClass *)gadg->Get_Next();
}
}
return (NULL);
} // end of Get_Message
/***************************************************************************
* MessageListClass::Get_Label -- retrieves given text label *
* *
* INPUT: *
* id ID of message to get *
* *
* OUTPUT: *
* ptr to message text, NULL if not found *
* *
* WARNINGS: *
* none. *
* *
* HISTORY: *
* 11/07/1995 BRR : Created. *
*=========================================================================*/
TextLabelClass * MessageListClass::Get_Label(int id)
{
TextLabelClass * gadg;
//------------------------------------------------------------------------
// Scan the message list, searching for the given ID
//------------------------------------------------------------------------
if (MessageList) {
gadg = MessageList;
while (gadg) {
if (gadg->UserData2 == id) {
return (gadg);
}
gadg = (TextLabelClass *)gadg->Get_Next();
}
}
return (NULL);
} // end of Get_Label
/***************************************************************************
* MessageListClass::Concat_Message -- concats the given message *
* *
* INPUT: *
* name name of sender; NULL = none *
* id ID of message to concatenate to *
* txt text to concatenate onto existing message *
* timeout new timeout for message *
* *
* OUTPUT: *
* 1 = OK, 0 = error (id or name not found) *
* *
* WARNINGS: *
* If the required message doesn't exist, this routine does nothing. *
* *
* HISTORY: *
* 11/07/1995 BRR : Created. *
*=========================================================================*/
int MessageListClass::Concat_Message(char const * name, int id, char const * txt, int timeout)
{
int min_chars;
int max_chars;
char * msg;
TextLabelClass * tlabel;
int found;
//------------------------------------------------------------------------
// If no name is given, or the concatenation feature is turned off,
// don't concatenate the message
//------------------------------------------------------------------------
if (!name || !EnableOverflow) {
return (0);
}
//------------------------------------------------------------------------
// Scan through all active messages, searching for one with a matching
// name & ID
//------------------------------------------------------------------------
found = 0;
if (MessageList) {
tlabel = MessageList;
while (tlabel) {
if (tlabel->UserData2 == id &&
!memcmp(tlabel->Text,name,strlen(name))) {
found = 1;
break;
}
tlabel = (TextLabelClass *)tlabel->Get_Next();
}
}
//------------------------------------------------------------------------
// name and ID not found; return
//------------------------------------------------------------------------
if (!found) {
return (0);
}
//------------------------------------------------------------------------
// set a pointer to the text string, plus the name and colon
//------------------------------------------------------------------------
msg = tlabel->Text + strlen(name) + 1;
//------------------------------------------------------------------------
// If there's room enough in the message, just add the given string
//------------------------------------------------------------------------
if ( (int)(strlen(msg) + strlen(txt)) < MaxChars) {
//---------------------------------------------------------------------
// We need to trim the message if there is no room to draw it
//---------------------------------------------------------------------
char *concat_test = new char [MaxChars+1];
Fancy_Text_Print(TXT_NONE, 0, 0, tlabel->Color, TBLACK, tlabel->Style);
int name_width = String_Pixel_Width(tlabel->Text) - String_Pixel_Width(msg);
int width;
strcpy (concat_test, msg);
strcat (concat_test, txt);
width = String_Pixel_Width(concat_test) + name_width;
min_chars = 10;
while (width >= Width-8){
max_chars = strlen (msg);
if (max_chars < min_chars) {
max_chars = min_chars;
}
Trim_Message (NULL, msg, min_chars, max_chars, 0);
strcpy (concat_test, msg);
strcat (concat_test, txt);
width = String_Pixel_Width(concat_test) + name_width;
};
delete [] concat_test;
strcat (msg,txt);
}
//------------------------------------------------------------------------
// Otherwise, trim off some characters from the beginning of the
// message. Trim off at least enough to leave room for the new text.
// Trim from left to right to remove the minimum required text.
//------------------------------------------------------------------------
else {
min_chars = (strlen(msg) + strlen(txt)) - MaxChars;
max_chars = strlen(msg);
if (max_chars < min_chars) {
max_chars = min_chars;
}
Trim_Message (NULL, msg, min_chars, max_chars, 0);
strcat (msg, txt);
}
//------------------------------------------------------------------------
// Set the new timeout value for the message
//------------------------------------------------------------------------
if (timeout==-1) {
tlabel->UserData1 = 0;
}
else {
tlabel->UserData1 = TickCount + timeout;
}
return (1);
} // end of Concat_Message
/***********************************************************************************************
* MessageListClass::Set_Edit_Focus -- Give the gadget system focus to the edit box *
* *
* *
* *
* INPUT: Nothing *
* *
* OUTPUT: Nothing *
* *
* WARNINGS: None *
* *
* HISTORY: *
* 10/19/96 4:41PM ST : Created *
*=============================================================================================*/
void MessageListClass::Set_Edit_Focus (void)
{
if (IsEdit) EditLabel->Set_Focus();
}
/***********************************************************************************************
* MessageListClass::Has_Edit_Focus -- Find out if the edit box has the input focus *
* *
* *
* *
* INPUT: Nothing *
* *
* OUTPUT: Nothing *
* *
* WARNINGS: None *
* *
* HISTORY: *
* 10/19/96 4:41PM ST : Created *
*=============================================================================================*/
bool MessageListClass::Has_Edit_Focus (void)
{
if (IsEdit){
return (EditLabel->Has_Focus());
}else{
return(false);
}
}
/***************************************************************************
* MessageListClass::Add_Edit -- Adds editable string to message list *
* *
* INPUT: *
* color color of edit message *
* style style of edit message *
* to string: who to send to; NULL = none *
* cursor character to use as a cursor; 0 = none *
* *
* OUTPUT: *
* ptr to new TextLabelClass *
* *
* WARNINGS: *
* none. *
* *
* HISTORY: *
* 05/22/1995 BRR : Created. *
*=========================================================================*/
TextLabelClass * MessageListClass::Add_Edit(PlayerColorType color,
TextPrintType style, char * to, char cursor, int width)
{
int i;
TextLabelClass * txtlabel;
//------------------------------------------------------------------------
// Do nothing if we're already in "edit" mode
//------------------------------------------------------------------------
if (IsEdit) {
EditLabel->Set_Focus();
return(NULL);
}
//------------------------------------------------------------------------
// Remove the top-most message if we're about to exceed the max allowed
//------------------------------------------------------------------------
if (AdjustEdit && ((Num_Messages() + 1) > MaxMessages)) {
txtlabel = MessageList;
MessageList = (TextLabelClass *)txtlabel->Remove();
for (i = 0; i < MAX_NUM_MESSAGES; i++) {
if (txtlabel->Text == MessageBuffers[i])
BufferAvail[i] = 1;
}
delete txtlabel;
}
//------------------------------------------------------------------------
// If no 'to' field was passed in, ignore it
//------------------------------------------------------------------------
if (!to) {
to = "";
}
//------------------------------------------------------------------------
// Set the cursor character
//------------------------------------------------------------------------
CursorChar = cursor;
//------------------------------------------------------------------------
// Initialize the buffer positions; create a new text label object
//------------------------------------------------------------------------
memset (EditBuf, 0, sizeof(EditBuf));
strcpy (EditBuf, to);
OverflowBuf[0] = 0;
EditCurPos = EditInitPos = strlen(to);
EditLabel = new TextLabelClass (EditBuf, EditX, EditY,
&ColorRemaps[color], style);
Width = width;
if (EditLabel) {
IsEdit = 1;
EditLabel->Set_Focus();
}
else {
IsEdit = 0;
}
//------------------------------------------------------------------------
// If the edit field appears over the message list, recompute the y-value
// for all messages. Also, adjust MaxMessages down by one, since there
// is now one less slot available.
//------------------------------------------------------------------------
if (AdjustEdit) {
Compute_Y();
MaxMessages--;
}
return(EditLabel);
} // end of Add_Edit
/***************************************************************************
* MessageListClass::Remove_Edit -- removes the edit field *
* *
* INPUT: *
* none. *
* *
* OUTPUT: *
* none. *
* *
* WARNINGS: *
* none. *
* *
* HISTORY: *
* 11/06/1995 BRR : Created. *
*=========================================================================*/
void MessageListClass::Remove_Edit(void)
{
//------------------------------------------------------------------------
// If the edit field is active, delete it
//------------------------------------------------------------------------
if (IsEdit) {
IsEdit = 0;
delete EditLabel;
//.....................................................................
// If the edit field appears over the message list, recompute the
// y-value for all messages. Adjust MaxMessages back up, since there
// is now a new available slot.
//.....................................................................
if (AdjustEdit) {
Compute_Y();
MaxMessages++;
}
}
} // end if Remove_Edit
/***************************************************************************
* MessageListClass::Get_Edit_Buf -- gets edit buffer *
* *
* INPUT: *
* none. *
* *
* OUTPUT: *
* ptr to edit buffer, minus the "To:" header *
* *
* WARNINGS: *
* none. *
* *
* HISTORY: *
* 05/21/1995 BRR : Created. *
*=========================================================================*/
char * MessageListClass::Get_Edit_Buf(void)
{
return(EditBuf + EditInitPos);
} // end of Get_Edit_Buf
/***************************************************************************
* MessageListClass::Set_Edit_Color -- sets color of edit gizmo *
* *
* INPUT: *
* color color to set edit label to *
* *
* OUTPUT: *
* none. *
* *
* WARNINGS: *
* none. *
* *
* HISTORY: *
* 12/08/1995 BRR : Created. *
*=========================================================================*/
void MessageListClass::Set_Edit_Color(PlayerColorType color)
{
if (IsEdit) {
EditLabel->Color = &ColorRemaps[color];
}
} // end of Set_Edit_Color
/***************************************************************************
* MessageListClass::Manage -- Manages multiplayer messages *
* *
* If this routine returns TRUE, the caller should update the display. *
* *
* INPUT: *
* none. *
* *
* OUTPUT: *
* none. *
* *
* WARNINGS: *
* 0 = no change has occurred, 1 = changed *
* *
* HISTORY: *
* 05/05/1995 BRR : Created. *
*=========================================================================*/
int MessageListClass::Manage (void)
{
TextLabelClass * txtlabel;
TextLabelClass * next;
int changed = 0;
int i;
//------------------------------------------------------------------------
// Loop through all messages
//------------------------------------------------------------------------
txtlabel = MessageList;
while (txtlabel) {
//.....................................................................
// If this message's time is up, remove it from the list
//.....................................................................
if (txtlabel->UserData1 != 0 && TickCount > txtlabel->UserData1) {
//..................................................................
// Save the next ptr in the list; remove this entry
//..................................................................
next = (TextLabelClass *)txtlabel->Get_Next();
MessageList = (TextLabelClass *)txtlabel->Remove();
for (i = 0; i < MAX_NUM_MESSAGES; i++) {
if (txtlabel->Text == MessageBuffers[i]) {
BufferAvail[i] = 1;
}
}
delete txtlabel;
changed = 1;
txtlabel = next;
}
else {
txtlabel = (TextLabelClass *)txtlabel->Get_Next();
}
}
//------------------------------------------------------------------------
// If a changed has been made, recompute the y-coord of all messages
//------------------------------------------------------------------------
if (changed) {
Compute_Y();
}
return(changed);
} // end of Manage
/***************************************************************************
* MessageListClass::Input -- Handles input for sending messages *
* *
* INPUT: *
* input key value to process *
* *
* OUTPUT: *
* 1 = caller should redraw the message list (no need to complete *
* refresh, though) *
* 2 = caller should completely refresh the display. *
* 3 = caller should send the edit message. *
* (sets 'input' to 0 if it processes it.) *
* 4 = caller should send the Overflow buffer *
* *
* WARNINGS: *
* none. *
* *
* HISTORY: *
* 05/05/1995 BRR : Created. *
*=========================================================================*/
int MessageListClass::Input(KeyNumType &input)
{
KeyASCIIType ascii;
int retcode = 0;
int numchars;
//------------------------------------------------------------------------
// Do nothing if nothing to do.
//------------------------------------------------------------------------
if (input == KN_NONE) {
return(0);
}
//------------------------------------------------------------------------
// Leave mouse events alone.
//------------------------------------------------------------------------
if ( (input & (~KN_RLSE_BIT))==KN_LMOUSE ||
(input & (~KN_RLSE_BIT))==KN_RMOUSE) {
return(0);
}
//------------------------------------------------------------------------
// If we're in 'edit mode', handle keys
//------------------------------------------------------------------------
if (IsEdit) {
ascii = (KeyASCIIType)(Keyboard->To_ASCII(input) & 0x00ff);
#ifdef WIN32
/*
** Allow numeric keypad presses to map to ascii numbers
*/
if ((input & WWKEY_VK_BIT) && ascii >='0' && ascii <= '9') {
input = (KeyNumType)(input & ~WWKEY_VK_BIT);
} else {
/*
** Filter out all special keys except return, escape and backspace
*/
if ((!(input & WWKEY_VK_BIT) && !(input & KN_BUTTON)
&& ascii >= ' ' && ascii <= 127)
|| (input & 0xff)== (KN_RETURN & 0xff)
|| (input & 0xff)== (KN_BACKSPACE & 0xff)
|| (input & 0xff)== (KN_ESC & 0xff) ) {
//ascii = (KeyASCIIType)(Keyboard->To_ASCII(input));
} else {
input = KN_NONE;
return (0);
}
}
#endif //WIN32
switch (ascii) {
//..................................................................
// ESC = abort message
//..................................................................
case KA_ESC & 0xff:
Remove_Edit();
retcode = 2;
input = KN_NONE;
break;
//..................................................................
// RETURN = send the message.
// Add a space to the end, in case another message gets concatenated
// onto this one after we send it; then, they won't be mushed
// together.
//..................................................................
case KA_RETURN & 0xff:
if (EditCurPos == EditInitPos) {
retcode = 0;
input = KN_NONE;
break;
}
if ( (EditCurPos - EditInitPos) < (MaxChars - 1) ) {
EditBuf[EditCurPos] = ' ';
EditCurPos++;
EditBuf[EditCurPos] = 0;
}
Remove_Edit();
retcode = 3;
input = KN_NONE;
break;
//..................................................................
// BACKSPACE = remove a character
//..................................................................
case KA_BACKSPACE & 0xff:
if (EditCurPos > EditInitPos) {
EditCurPos--;
EditBuf[EditCurPos] = 0;
retcode = 2;
}
input = KN_NONE;
EditLabel->Set_Focus();
break;
//..................................................................
// default: add a character. Reserve the last buffer position for
// null. (EditCurPos - EditInitPos) is the buffer index # of the
// next character, after the "To:" prefix.
//..................................................................
default:
EditLabel->Set_Focus();
bool overflowed = false;
if (ascii >= ' ' && ascii <= 127) {
if ( (EditCurPos - EditInitPos) < (MaxChars - 1) ) {
EditBuf[EditCurPos] = ascii;
EditCurPos++;
EditBuf[EditCurPos] = 0;
retcode = 1;
/*
** Verify that the additional character would not overrun the on screen edit box.
*/
Fancy_Text_Print(TXT_NONE, 0, 0, EditLabel->Color, TBLACK, EditLabel->Style);
int width = String_Pixel_Width(EditBuf);
if (width >= Width-10) {
overflowed = true;
EditCurPos--;
EditBuf[EditCurPos] = 0;
retcode = 0;
}
} else {
//............................................................
// If there's no room in the buffer, and overflow is enabled,
// trim the extra characters off (from right to left, to
// remove the max possible characters), and then add the new
// character in.
//............................................................
overflowed = true;
}
if (/*BGEnableOverflow &&*/ overflowed) {
numchars = Trim_Message (OverflowBuf, EditBuf + EditInitPos,
OverflowStart,OverflowEnd, 1);
EditCurPos -= numchars;
EditBuf[EditCurPos] = ascii;
EditCurPos++;
EditBuf[EditCurPos] = 0;
retcode = 4;
}
}
input = KN_NONE;
break;
}
}
return(retcode);
} // end of Input
/***************************************************************************
* MessageListClass::Draw -- draws messages *
* *
* INPUT: *
* none *
* *
* OUTPUT: *
* none. *
* *
* WARNINGS: *
* none. *
* *
* HISTORY: *
* 05/22/1995 BRR : Created. *
*=========================================================================*/
void MessageListClass::Draw(void)
{
char txt[2] = {0,0};
if (IsEdit) {
if (LogicPage == &SeenBuff) {
Hide_Mouse();
}
EditLabel->Draw_Me(true);
if (CursorChar && (EditCurPos - EditInitPos) < (MaxChars - 1) && EditLabel->Has_Focus()) {
txt[0] = CursorChar;
Fancy_Text_Print(txt,
EditLabel->X + String_Pixel_Width(EditLabel->Text),
EditLabel->Y,
EditLabel->Color,
TBLACK,
EditLabel->Style);
}
if (LogicPage == &SeenBuff) {
Show_Mouse();
}
}
if (MessageList) {
if (LogicPage == &SeenBuff) {
Hide_Mouse();
}
MessageList->Draw_All();
if (LogicPage == &SeenBuff) {
Show_Mouse();
}
}
} // end of Draw
/***************************************************************************
* MessageListClass::Num_Messages -- returns # messages in the list *
* *
* INPUT: *
* none. *
* *
* OUTPUT: *
* # of messages, including the edit field if it's above the messages *
* *
* WARNINGS: *
* none. *
* *
* HISTORY: *
* 06/26/1995 BRR : Created. *
*=========================================================================*/
int MessageListClass::Num_Messages(void)
{
GadgetClass * gadg;
int num;
num = 0;
if (MessageList) {
gadg = MessageList;
while (gadg) {
num++;
gadg = gadg->Get_Next();
}
}
if (IsEdit && AdjustEdit) {
num++;
}
return (num);
} // end of Num_Messages
/***************************************************************************
* MessageListClass::Set_Width -- sets allowable width of messages *
* *
* INPUT: *
* width pixel width *
* *
* OUTPUT: *
* none. *
* *
* WARNINGS: *
* none. *
* *
* HISTORY: *
* 06/26/1995 BRR : Created. *
*=========================================================================*/
void MessageListClass::Set_Width(int width)
{
GadgetClass * gadg;
if (MessageList) {
gadg = MessageList;
while (gadg) {
((TextLabelClass *)gadg)->PixWidth = width;
gadg = gadg->Get_Next();
}
}
if (IsEdit) {
EditLabel->PixWidth = width;
}
} // end of Set_Width
/***************************************************************************
* MessageListClass::Trim_Message -- trims chars off start of message *
* *
* INPUT: *
* dest buffer to store removed characters in; NULL = none *
* src text buffer to trim *
* min_chars min # chars that must be trimmed off *
* max_chars max # chars allowed to trim *
* scandir 0 = left-to-right, 1 = right-to-left *
* *
* OUTPUT: *
* # characters removed *
* *
* WARNINGS: *
* none. *
* *
* HISTORY: *
* 11/07/1995 BRR : Created. *
*=========================================================================*/
int MessageListClass::Trim_Message(char * dest, char * src, int min_chars,
int max_chars, int scandir)
{
int i;
int len;
int found;
//------------------------------------------------------------------------
// validate parameters
//------------------------------------------------------------------------
if (min_chars <= 0) {
return(0);
}
len = strlen (src);
if (max_chars > len) {
max_chars = len;
}
//------------------------------------------------------------------------
// find 1st available white space; if there is none, just trim off
// 'min_chars' characters. 'i' will be the number of chars to trim.
// The chars removed will include the white space.
//------------------------------------------------------------------------
found = 0;
//........................................................................
// scan from left to right
//........................................................................
if (scandir == 0) {
for (i = min_chars; i <= max_chars; i++) {
if (isspace(src[i - 1])) {
found = 1;
break;
}
}
}
//........................................................................
// scan from right to left
//........................................................................
else {
for (i = max_chars; i >= min_chars; i--) {
if (isspace(src[i - 1])) {
found = 1;
break;
}
}
}
//........................................................................
// If no whitespace was found, just set 'i' to the min # characters
//........................................................................
if (!found) {
i = min_chars;
}
//------------------------------------------------------------------------
// Save trimmed characters in the dest buffer, if there is one
//------------------------------------------------------------------------
if (dest) {
memcpy (dest, src, i);
dest[i] ='\0';
}
//------------------------------------------------------------------------
// Shift characters over in the source buffer
//------------------------------------------------------------------------
memmove (src, src + i, len - i + 1);
return (i);
} // end of Trim_Message
/***************************************************************************
* MessageListClass::Compute_Y -- recomputes y-coord for all messages *
* *
* INPUT: *
* none. *
* *
* OUTPUT: *
* none. *
* *
* WARNINGS: *
* none. *
* *
* HISTORY: *
* 11/07/1995 BRR : Created. *
*=========================================================================*/
void MessageListClass::Compute_Y(void)
{
GadgetClass * gadg;
int y;
//------------------------------------------------------------------------
// If the editable message is attached to the message list, 'AdjustEdit'
// will be set; so, adjust all y-values downward one line. Otherwise,
// the editable message has its own screen coordinates.
//------------------------------------------------------------------------
if (IsEdit && AdjustEdit) {
y = MessageY + Height;
}
else {
y = MessageY;
}
if (MessageList) {
gadg = MessageList;
while (gadg) {
gadg->Y = y;
gadg = gadg->Get_Next();
y += Height;
}
}
} // end of Compute_Y
/*************************** end of msglist.cpp ****************************/