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/* $Id$ */
/** @file network_chat_gui.cpp GUI for handling chat messages. */
#include <stdarg.h> /* va_list */
#ifdef ENABLE_NETWORK
#include "../stdafx.h"
#include "../date_func.h"
#include "../gfx_func.h"
#include "../strings_func.h"
#include "../blitter/factory.hpp"
#include "../console_func.h"
#include "../video/video_driver.hpp"
#include "../table/sprites.h"
#include "../querystring_gui.h"
#include "../town.h"
#include "../window_func.h"
#include "network_internal.h"
#include "network_client.h"
#include "table/strings.h"
/* The draw buffer must be able to contain the chat message, client name and the "[All]" message,
* some spaces and possible translations of [All] to other languages. */
assert_compile((int)DRAW_STRING_BUFFER >= (int)NETWORK_CHAT_LENGTH + NETWORK_NAME_LENGTH + 40);
enum {
NETWORK_CHAT_LINE_SPACING = 3,
};
struct ChatMessage {
char message[DRAW_STRING_BUFFER];
TextColour colour;
Date end_date;
};
/* used for chat window */
static ChatMessage *_chatmsg_list = NULL;
static bool _chatmessage_dirty = false;
static bool _chatmessage_visible = false;
static bool _chat_tab_completion_active;
static uint MAX_CHAT_MESSAGES = 0;
/* The chatbox grows from the bottom so the coordinates are pixels from
* the left and pixels from the bottom. The height is the maximum height */
static PointDimension _chatmsg_box;
static uint8 *_chatmessage_backup = NULL;
static inline uint GetChatMessageCount()
{
uint i = 0;
for (; i < MAX_CHAT_MESSAGES; i++) {
if (_chatmsg_list[i].message[0] == '\0') break;
}
return i;
}
/**
* Add a text message to the 'chat window' to be shown
* @param colour The colour this message is to be shown in
* @param duration The duration of the chat message in game-days
* @param message message itself in printf() style
*/
void CDECL NetworkAddChatMessage(TextColour colour, uint8 duration, const char *message, ...)
{
char buf[DRAW_STRING_BUFFER];
const char *bufp;
va_list va;
uint msg_count;
uint16 lines;
va_start(va, message);
vsnprintf(buf, lengthof(buf), message, va);
va_end(va);
Utf8TrimString(buf, DRAW_STRING_BUFFER);
/* Force linebreaks for strings that are too long */
lines = GB(FormatStringLinebreaks(buf, _chatmsg_box.width - 8), 0, 16) + 1;
if (lines >= MAX_CHAT_MESSAGES) return;
msg_count = GetChatMessageCount();
/* We want to add more chat messages than there is free space for, remove 'old' */
if (lines > MAX_CHAT_MESSAGES - msg_count) {
int i = lines - (MAX_CHAT_MESSAGES - msg_count);
memmove(&_chatmsg_list[0], &_chatmsg_list[i], sizeof(_chatmsg_list[0]) * (msg_count - i));
msg_count = MAX_CHAT_MESSAGES - lines;
}
for (bufp = buf; lines != 0; lines--) {
ChatMessage *cmsg = &_chatmsg_list[msg_count++];
strecpy(cmsg->message, bufp, lastof(cmsg->message));
/* The default colour for a message is company colour. Replace this with
* white for any additional lines */
cmsg->colour = (bufp == buf && (colour & IS_PALETTE_COLOUR)) ? colour : TC_WHITE;
cmsg->end_date = _date + duration;
bufp += strlen(bufp) + 1; // jump to 'next line' in the formatted string
}
_chatmessage_dirty = true;
}
void NetworkInitChatMessage()
{
MAX_CHAT_MESSAGES = _settings_client.gui.network_chat_box_height;
_chatmsg_list = ReallocT(_chatmsg_list, _settings_client.gui.network_chat_box_height);
_chatmsg_box.x = 10;
_chatmsg_box.y = 30;
_chatmsg_box.width = _settings_client.gui.network_chat_box_width;
_chatmsg_box.height = _settings_client.gui.network_chat_box_height * (FONT_HEIGHT_NORMAL + NETWORK_CHAT_LINE_SPACING) + 2;
_chatmessage_backup = ReallocT(_chatmessage_backup, _chatmsg_box.width * _chatmsg_box.height * BlitterFactoryBase::GetCurrentBlitter()->GetBytesPerPixel());
for (uint i = 0; i < MAX_CHAT_MESSAGES; i++) {
_chatmsg_list[i].message[0] = '\0';
}
}
/** Hide the chatbox */
void NetworkUndrawChatMessage()
{
/* Sometimes we also need to hide the cursor
* This is because both textmessage and the cursor take a shot of the
* screen before drawing.
* Now the textmessage takes his shot and paints his data before the cursor
* does, so in the shot of the cursor is the screen-data of the textmessage
* included when the cursor hangs somewhere over the textmessage. To
* avoid wrong repaints, we undraw the cursor in that case, and everything
* looks nicely ;)
* (and now hope this story above makes sense to you ;))
*/
if (_cursor.visible &&
_cursor.draw_pos.x + _cursor.draw_size.x >= _chatmsg_box.x &&
_cursor.draw_pos.x <= _chatmsg_box.x + _chatmsg_box.width &&
_cursor.draw_pos.y + _cursor.draw_size.y >= _screen.height - _chatmsg_box.y - _chatmsg_box.height &&
_cursor.draw_pos.y <= _screen.height - _chatmsg_box.y) {
UndrawMouseCursor();
}
if (_chatmessage_visible) {
Blitter *blitter = BlitterFactoryBase::GetCurrentBlitter();
int x = _chatmsg_box.x;
int y = _screen.height - _chatmsg_box.y - _chatmsg_box.height;
int width = _chatmsg_box.width;
int height = _chatmsg_box.height;
if (y < 0) {
height = max(height + y, min(_chatmsg_box.height, _screen.height));
y = 0;
}
if (x + width >= _screen.width) {
width = _screen.width - x;
}
if (width <= 0 || height <= 0) return;
_chatmessage_visible = false;
/* Put our 'shot' back to the screen */
blitter->CopyFromBuffer(blitter->MoveTo(_screen.dst_ptr, x, y), _chatmessage_backup, width, height);
/* And make sure it is updated next time */
_video_driver->MakeDirty(x, y, width, height);
_chatmessage_dirty = true;
}
}
/** Check if a message is expired every day */
void NetworkChatMessageDailyLoop()
{
for (uint i = 0; i < MAX_CHAT_MESSAGES; i++) {
ChatMessage *cmsg = &_chatmsg_list[i];
if (cmsg->message[0] == '\0') continue;
/* Message has expired, remove from the list */
if (cmsg->end_date < _date) {
/* Move the remaining messages over the current message */
if (i != MAX_CHAT_MESSAGES - 1) memmove(cmsg, cmsg + 1, sizeof(*cmsg) * (MAX_CHAT_MESSAGES - i - 1));
/* Mark the last item as empty */
_chatmsg_list[MAX_CHAT_MESSAGES - 1].message[0] = '\0';
_chatmessage_dirty = true;
/* Go one item back, because we moved the array 1 to the left */
i--;
}
}
}
/** Draw the chat message-box */
void NetworkDrawChatMessage()
{
Blitter *blitter = BlitterFactoryBase::GetCurrentBlitter();
if (!_chatmessage_dirty) return;
/* First undraw if needed */
NetworkUndrawChatMessage();
if (_iconsole_mode == ICONSOLE_FULL) return;
/* Check if we have anything to draw at all */
uint count = GetChatMessageCount();
if (count == 0) return;
int x = _chatmsg_box.x;
int y = _screen.height - _chatmsg_box.y - _chatmsg_box.height;
int width = _chatmsg_box.width;
int height = _chatmsg_box.height;
if (y < 0) {
height = max(height + y, min(_chatmsg_box.height, _screen.height));
y = 0;
}
if (x + width >= _screen.width) {
width = _screen.width - x;
}
if (width <= 0 || height <= 0) return;
assert(blitter->BufferSize(width, height) <= (int)(_chatmsg_box.width * _chatmsg_box.height * blitter->GetBytesPerPixel()));
/* Make a copy of the screen as it is before painting (for undraw) */
blitter->CopyToBuffer(blitter->MoveTo(_screen.dst_ptr, x, y), _chatmessage_backup, width, height);
_cur_dpi = &_screen; // switch to _screen painting
/* Paint a half-transparent box behind the chat messages */
GfxFillRect(
_chatmsg_box.x,
_screen.height - _chatmsg_box.y - count * (FONT_HEIGHT_NORMAL + NETWORK_CHAT_LINE_SPACING) - 2,
_chatmsg_box.x + _chatmsg_box.width - 1,
_screen.height - _chatmsg_box.y - 2,
PALETTE_TO_TRANSPARENT, FILLRECT_RECOLOUR // black, but with some alpha for background
);
/* Paint the chat messages starting with the lowest at the bottom */
for (uint y = FONT_HEIGHT_NORMAL + NETWORK_CHAT_LINE_SPACING; count-- != 0; y += (FONT_HEIGHT_NORMAL + NETWORK_CHAT_LINE_SPACING)) {
DrawString(_chatmsg_box.x + 3, _chatmsg_box.x + _chatmsg_box.width - 1, _screen.height - _chatmsg_box.y - y + 1, _chatmsg_list[count].message, _chatmsg_list[count].colour);
}
/* Make sure the data is updated next flush */
_video_driver->MakeDirty(x, y, width, height);
_chatmessage_visible = true;
_chatmessage_dirty = false;
}
static void SendChat(const char *buf, DestType type, int dest)
{
if (StrEmpty(buf)) return;
if (!_network_server) {
SEND_COMMAND(PACKET_CLIENT_CHAT)((NetworkAction)(NETWORK_ACTION_CHAT + type), type, dest, buf, 0);
} else {
NetworkServerSendChat((NetworkAction)(NETWORK_ACTION_CHAT + type), type, dest, buf, CLIENT_ID_SERVER);
}
}
/** Widget numbers of the chat window. */
enum NetWorkChatWidgets {
NWCW_CLOSE,
NWCW_BACKGROUND,
NWCW_TEXTBOX,
NWCW_SENDBUTTON,
};
struct NetworkChatWindow : public QueryStringBaseWindow {
DestType dtype;
int dest;
NetworkChatWindow (const WindowDesc *desc, DestType type, int dest) : QueryStringBaseWindow(NETWORK_CHAT_LENGTH, desc)
{
this->LowerWidget(NWCW_TEXTBOX);
this->dtype = type;
this->dest = dest;
this->afilter = CS_ALPHANUMERAL;
InitializeTextBuffer(&this->text, this->edit_str_buf, this->edit_str_size, 0);
this->SetFocusedWidget(NWCW_TEXTBOX);
InvalidateWindowData(WC_NEWS_WINDOW, 0, this->height);
_chat_tab_completion_active = false;
this->FindWindowPlacementAndResize(desc);
}
~NetworkChatWindow ()
{
InvalidateWindowData(WC_NEWS_WINDOW, 0, 0);
}
/**
* Find the next item of the list of things that can be auto-completed.
* @param item The current indexed item to return. This function can, and most
* likely will, alter item, to skip empty items in the arrays.
* @return Returns the char that matched to the index.
*/
const char *ChatTabCompletionNextItem(uint *item)
{
static char chat_tab_temp_buffer[64];
/* First, try clients */
if (*item < MAX_CLIENT_SLOTS) {
/* Skip inactive clients */
NetworkClientInfo *ci;
FOR_ALL_CLIENT_INFOS_FROM(ci, *item) {
*item = ci->index;
return ci->client_name;
}
*item = MAX_CLIENT_SLOTS;
}
/* Then, try townnames
* Not that the following assumes all town indices are adjacent, ie no
* towns have been deleted. */
if (*item < (uint)MAX_CLIENT_SLOTS + Town::GetPoolSize()) {
const Town *t;
FOR_ALL_TOWNS_FROM(t, *item - MAX_CLIENT_SLOTS) {
/* Get the town-name via the string-system */
SetDParam(0, t->index);
GetString(chat_tab_temp_buffer, STR_TOWN, lastof(chat_tab_temp_buffer));
return &chat_tab_temp_buffer[0];
}
}
return NULL;
}
/**
* Find what text to complete. It scans for a space from the left and marks
* the word right from that as to complete. It also writes a \0 at the
* position of the space (if any). If nothing found, buf is returned.
*/
static char *ChatTabCompletionFindText(char *buf)
{
char *p = strrchr(buf, ' ');
if (p == NULL) return buf;
*p = '\0';
return p + 1;
}
/**
* See if we can auto-complete the current text of the user.
*/
void ChatTabCompletion()
{
static char _chat_tab_completion_buf[NETWORK_CHAT_LENGTH];
assert(this->edit_str_size == lengthof(_chat_tab_completion_buf));
Textbuf *tb = &this->text;
size_t len, tb_len;
uint item;
char *tb_buf, *pre_buf;
const char *cur_name;
bool second_scan = false;
item = 0;
/* Copy the buffer so we can modify it without damaging the real data */
pre_buf = (_chat_tab_completion_active) ? strdup(_chat_tab_completion_buf) : strdup(tb->buf);
tb_buf = ChatTabCompletionFindText(pre_buf);
tb_len = strlen(tb_buf);
while ((cur_name = ChatTabCompletionNextItem(&item)) != NULL) {
item++;
if (_chat_tab_completion_active) {
/* We are pressing TAB again on the same name, is there an other name
* that starts with this? */
if (!second_scan) {
size_t offset;
size_t length;
/* If we are completing at the begin of the line, skip the ': ' we added */
if (tb_buf == pre_buf) {
offset = 0;
length = (tb->size - 1) - 2;
} else {
/* Else, find the place we are completing at */
offset = strlen(pre_buf) + 1;
length = (tb->size - 1) - offset;
}
/* Compare if we have a match */
if (strlen(cur_name) == length && strncmp(cur_name, tb->buf + offset, length) == 0) second_scan = true;
continue;
}
/* Now any match we make on _chat_tab_completion_buf after this, is perfect */
}
len = strlen(cur_name);
if (tb_len < len && strncasecmp(cur_name, tb_buf, tb_len) == 0) {
/* Save the data it was before completion */
if (!second_scan) snprintf(_chat_tab_completion_buf, lengthof(_chat_tab_completion_buf), "%s", tb->buf);
_chat_tab_completion_active = true;
/* Change to the found name. Add ': ' if we are at the start of the line (pretty) */
if (pre_buf == tb_buf) {
snprintf(tb->buf, this->edit_str_size, "%s: ", cur_name);
} else {
snprintf(tb->buf, this->edit_str_size, "%s %s", pre_buf, cur_name);
}
/* Update the textbuffer */
UpdateTextBufferSize(&this->text);
this->SetDirty();
free(pre_buf);
return;
}
}
if (second_scan) {
/* We walked all posibilities, and the user presses tab again.. revert to original text */
strcpy(tb->buf, _chat_tab_completion_buf);
_chat_tab_completion_active = false;
/* Update the textbuffer */
UpdateTextBufferSize(&this->text);
this->SetDirty();
}
free(pre_buf);
}
virtual void OnPaint()
{
static const StringID chat_captions[] = {
STR_NETWORK_CHAT_ALL_CAPTION,
STR_NETWORK_CHAT_COMPANY_CAPTION,
STR_NETWORK_CHAT_CLIENT_CAPTION
};
this->DrawWidgets();
assert((uint)this->dtype < lengthof(chat_captions));
DrawString(this->widget[NWCW_BACKGROUND].left, this->widget[NWCW_TEXTBOX].left - 2, this->widget[NWCW_TEXTBOX].top + 1, chat_captions[this->dtype], TC_BLACK, SA_RIGHT);
this->DrawEditBox(NWCW_TEXTBOX);
}
virtual void OnClick(Point pt, int widget)
{
switch (widget) {
/* Send */
case NWCW_SENDBUTTON: SendChat(this->text.buf, this->dtype, this->dest);
/* FALLTHROUGH */
case NWCW_CLOSE: /* Cancel */ delete this; break;
}
}
virtual void OnMouseLoop()
{
this->HandleEditBox(NWCW_TEXTBOX);
}
virtual EventState OnKeyPress(uint16 key, uint16 keycode)
{
EventState state = ES_NOT_HANDLED;
if (keycode == WKC_TAB) {
ChatTabCompletion();
state = ES_HANDLED;
} else {
_chat_tab_completion_active = false;
switch (this->HandleEditBoxKey(NWCW_TEXTBOX, key, keycode, state)) {
default: NOT_REACHED();
case HEBR_EDITING: {
Window *osk = FindWindowById(WC_OSK, 0);
if (osk != NULL && osk->parent == this) osk->OnInvalidateData();
} break;
case HEBR_CONFIRM:
SendChat(this->text.buf, this->dtype, this->dest);
/* FALLTHROUGH */
case HEBR_CANCEL: delete this; break;
case HEBR_NOT_FOCUSED: break;
}
}
return state;
}
virtual void OnOpenOSKWindow(int wid)
{
ShowOnScreenKeyboard(this, wid, 0, 3);
}
};
static const Widget _chat_window_widgets[] = {
{ WWT_CLOSEBOX, RESIZE_NONE, COLOUR_GREY, 0, 10, 0, 13, STR_BLACK_CROSS, STR_TOOLTIP_CLOSE_WINDOW},
{ WWT_PANEL, RESIZE_RIGHT, COLOUR_GREY, 11, 319, 0, 13, 0x0, STR_NULL}, // background
{ WWT_EDITBOX, RESIZE_RIGHT, COLOUR_GREY, 75, 257, 1, 12, STR_NETWORK_CHAT_OSKTITLE, STR_NULL}, // text box
{ WWT_PUSHTXTBTN, RESIZE_LR, COLOUR_GREY, 258, 319, 1, 12, STR_NETWORK_SEND, STR_NULL}, // send button
{ WIDGETS_END},
};
static const NWidgetPart _nested_chat_window_widgets[] = {
NWidget(NWID_HORIZONTAL),
NWidget(WWT_CLOSEBOX, COLOUR_GREY, NWCW_CLOSE),
NWidget(WWT_PANEL, COLOUR_GREY, NWCW_BACKGROUND),
NWidget(NWID_HORIZONTAL),
NWidget(WWT_EDITBOX, COLOUR_GREY, NWCW_TEXTBOX), SetMinimalSize(183, 12), SetPadding(1, 0, 1, 64), SetResize(1, 0),
SetDataTip(STR_NETWORK_CHAT_OSKTITLE, STR_NULL),
NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, NWCW_SENDBUTTON), SetMinimalSize(62, 12), SetPadding(1, 0, 1, 0), SetDataTip(STR_NETWORK_SEND, STR_NULL),
EndContainer(),
EndContainer(),
EndContainer(),
};
static const WindowDesc _chat_window_desc(
WDP_CENTER, -26, 320, 14, 640, 14, // x, y, width, height
WC_SEND_NETWORK_MSG, WC_NONE,
WDF_STD_TOOLTIPS | WDF_DEF_WIDGET,
_chat_window_widgets, _nested_chat_window_widgets, lengthof(_nested_chat_window_widgets)
);
void ShowNetworkChatQueryWindow(DestType type, int dest)
{
DeleteWindowById(WC_SEND_NETWORK_MSG, 0);
new NetworkChatWindow (&_chat_window_desc, type, dest);
}
#endif /* ENABLE_NETWORK */
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