Files
ncmpcpp/src/window.cpp
2008-12-12 21:14:22 +01:00

780 lines
15 KiB
C++

/***************************************************************************
* Copyright (C) 2008 by Andrzej Rybczak *
* electricityispower@gmail.com *
* *
* This program 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 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#include "window.h"
void InitScreen(bool enable_colors)
{
setlocale(LC_ALL, "");
initscr();
if (has_colors() && enable_colors)
{
start_color();
use_default_colors();
int num = 1;
for (int i = -1; i < 8; i++)
for (int j = 0; j < 8; j++)
init_pair(num++, j, i);
}
noecho();
cbreak();
curs_set(0);
}
void DestroyScreen()
{
curs_set(1);
endwin();
}
Window::Window(size_t startx,
size_t starty,
size_t width,
size_t height,
const string &title,
Color color,
Border border)
: itsWindow(0),
itsWinBorder(0),
itsGetStringHelper(0),
itsStartX(startx),
itsStartY(starty),
itsWidth(width),
itsHeight(height),
itsWindowTimeout(-1),
itsX(0),
itsY(0),
itsTitle(title),
itsColor(color),
itsBaseColor(color),
itsBgColor(clDefault),
itsBaseBgColor(clDefault),
itsBorder(border)
{
if (itsStartX > size_t(COLS)
|| itsStartY > size_t(LINES)
|| itsWidth+itsStartX > size_t(COLS)
|| itsHeight+itsStartY > size_t(LINES))
throw BadSize();
if (itsBorder != brNone)
{
itsWinBorder = newpad(itsHeight, itsWidth);
wattron(itsWinBorder, COLOR_PAIR(itsBorder));
box(itsWinBorder, 0, 0);
itsStartX++;
itsStartY++;
itsWidth -= 2;
itsHeight -= 2;
}
if (!itsTitle.empty())
{
itsStartY += 2;
itsHeight -= 2;
}
itsWindow = newwin(itsHeight, itsWidth, itsStartY, itsStartX);
SetColor(itsColor);
keypad(itsWindow, 1);
}
Window::Window(const Window &w)
{
itsWindow = dupwin(w.itsWindow);
itsWinBorder = dupwin(w.itsWinBorder);
itsGetStringHelper = w.itsGetStringHelper;
itsWindowTimeout = w.itsWindowTimeout;
itsX = w.itsX;
itsY = w.itsY;
itsStartX = w.itsStartX;
itsStartY = w.itsStartY;
itsWidth = w.itsWidth;
itsHeight = w.itsHeight;
itsTitle = w.itsTitle;
itsColors = w.itsColors;
itsColor = w.itsColor;
itsBaseColor = w.itsBaseColor;
itsBgColor = w.itsBgColor;
itsBaseBgColor = w.itsBaseBgColor;
itsBorder = w.itsBorder;
SetColor(itsColor, itsBgColor);
keypad(itsWindow, 1);
}
Window::~Window()
{
delwin(itsWindow);
delwin(itsWinBorder);
}
void Window::SetColor(Color col, Color background)
{
if (col == clDefault)
col = itsBaseColor;
if (col != clDefault)
wattron(itsWindow, COLOR_PAIR(background*8+col));
else
wattroff(itsWindow, COLOR_PAIR(itsColor));
itsColor = col;
itsBgColor = background;
}
void Window::SetBaseColor(Color col, Color background)
{
itsBaseColor = col;
itsBaseBgColor = background;
}
void Window::SetBorder(Border border)
{
if (border == brNone && itsBorder != brNone)
{
delwin(itsWinBorder);
itsStartX--;
itsStartY--;
itsHeight += 2;
itsWidth += 2;
Recreate();
}
else if (border != brNone && itsBorder == brNone)
{
itsWinBorder = newpad(itsHeight, itsWidth);
wattron(itsWinBorder, COLOR_PAIR(border));
box(itsWinBorder,0,0);
itsStartX++;
itsStartY++;
itsHeight -= 2;
itsWidth -= 2;
Recreate();
}
else
{
wattron(itsWinBorder,COLOR_PAIR(border));
box(itsWinBorder, 0, 0);
}
itsBorder = border;
}
void Window::SetTitle(const string &newtitle)
{
if (itsTitle == newtitle)
{
return;
}
else if (!newtitle.empty() && itsTitle.empty())
{
itsStartY += 2;
itsHeight -= 2;
Recreate();
}
else if (newtitle.empty() && !itsTitle.empty())
{
itsStartY -= 2;
itsHeight += 2;
Recreate();
}
itsTitle = newtitle;
}
void Window::Recreate()
{
delwin(itsWindow);
itsWindow = newwin(itsHeight, itsWidth, itsStartY, itsStartX);
SetTimeout(itsWindowTimeout);
SetColor(itsColor, itsBgColor);
keypad(itsWindow, 1);
}
void Window::MoveTo(size_t newx, size_t newy)
{
if (newx == itsStartX && newy == itsStartY)
return;
/*if (newx > size_t(COLS)
|| newy > size_t(LINES)
|| itsWidth+newx > size_t(COLS)
|| itsHeight+newy > size_t(LINES))
throw BadSize();*/
itsStartX = newx;
itsStartY = newy;
if (itsBorder != brNone)
{
itsStartX++;
itsStartY++;
}
if (!itsTitle.empty())
itsStartY += 2;
mvwin(itsWindow, itsStartY, itsStartX);
}
void Window::Resize(size_t width, size_t height)
{
/*if (width+itsStartX > size_t(COLS)
|| height+itsStartY > size_t(LINES))
throw BadSize();*/
if (itsBorder != brNone)
{
delwin(itsWinBorder);
itsWinBorder = newpad(height, width);
wattron(itsWinBorder, COLOR_PAIR(itsBorder));
box(itsWinBorder, 0, 0);
width -= 2;
height -= 2;
}
if (!itsTitle.empty())
height -= 2;
if (wresize(itsWindow, height, width) == OK)
{
itsHeight = height;
itsWidth = width;
}
}
void Window::ShowBorder() const
{
if (itsBorder != brNone)
{
refresh();
prefresh(itsWinBorder, 0, 0, GetStartY(), GetStartX(), itsStartY+itsHeight, itsStartX+itsWidth);
}
if (!itsTitle.empty())
{
if (itsBorder != brNone)
attron(COLOR_PAIR(itsBorder));
else
attron(COLOR_PAIR(itsBaseColor));
mvhline(itsStartY-1, itsStartX, 0, itsWidth);
attron(A_BOLD);
mvhline(itsStartY-2, itsStartX, 32, itsWidth); // clear title line
mvaddstr(itsStartY-2, itsStartX, itsTitle.c_str());
attroff(COLOR_PAIR(itsBorder) | A_BOLD);
}
refresh();
}
void Window::Display()
{
ShowBorder();
Refresh();
}
void Window::Refresh()
{
wrefresh(itsWindow);
}
void Window::Clear(bool)
{
werase(itsWindow);
wrefresh(itsWindow);
}
void Window::Hide(char x) const
{
for (size_t i = 0; i < GetHeight(); i++)
mvhline(i+GetStartY(), GetStartX(), x, GetWidth());
refresh();
}
void Window::Bold(bool bold) const
{
bold ? wattron(itsWindow, A_BOLD) : wattroff(itsWindow, A_BOLD);
}
void Window::Reverse(bool reverse) const
{
reverse ? wattron(itsWindow, A_REVERSE) : wattroff(itsWindow, A_REVERSE);
}
void Window::AltCharset(bool alt) const
{
alt ? wattron(itsWindow, A_ALTCHARSET) : wattroff(itsWindow, A_ALTCHARSET);
}
void Window::SetTimeout(int timeout)
{
itsWindowTimeout = timeout;
wtimeout(itsWindow, timeout);
}
void Window::ReadKey(int &input) const
{
input = wgetch(itsWindow);
}
void Window::ReadKey() const
{
wgetch(itsWindow);
}
void Window::Write(bool cte, const char *format, ...) const
{
va_list list;
va_start(list, format);
vw_printw(itsWindow, format, list);
va_end(list);
if (cte)
wclrtoeol(itsWindow);
}
void Window::WriteXY(int x, int y, bool cte, const char *format, ...) const
{
va_list list;
va_start(list, format);
wmove(itsWindow, y, x);
vw_printw(itsWindow, format, list);
va_end(list);
if (cte)
wclrtoeol(itsWindow);
}
string Window::GetString(const string &base, size_t length, size_t width) const
{
int input;
size_t beginning, maxbeginning, minx, x, y, maxx;
getyx(itsWindow, y, x);
minx = maxx = x;
width--;
if (width == size_t(-1))
width = itsWidth-x-1;
curs_set(1);
std::wstring tmp = ToWString(base);
string tmp_in;
wchar_t wc_in;
mbstate_t state;
memset(&state, 0, sizeof(state));
maxbeginning = beginning = tmp.length() < width ? 0 : tmp.length()-width;
maxx += tmp.length() < width ? tmp.length() : width;
x = maxx;
do
{
maxbeginning = tmp.length() < width ? 0 : tmp.length()-width;
maxx = minx + (tmp.length() < width ? tmp.length() : width);
if (beginning > maxbeginning)
beginning = maxbeginning;
mvwhline(itsWindow, y, minx, 32, width+1);
mvwprintw(itsWindow, y, minx, "%ls", tmp.substr(beginning, width+1).c_str());
if (itsGetStringHelper)
itsGetStringHelper();
wmove(itsWindow, y, x);
input = wgetch(itsWindow);
switch (input)
{
case ERR:
continue;
case KEY_UP:
case KEY_DOWN:
break;
case KEY_RIGHT:
{
if (x < maxx)
x++;
else if (beginning < maxbeginning)
beginning++;
break;
}
case KEY_BACKSPACE: case 127:
{
if (x <= minx && !beginning)
break;
}
case KEY_LEFT:
{
if (x > minx)
x--;
else if (beginning > 0)
beginning--;
if (input != KEY_BACKSPACE && input != 127)
break; // backspace = left & delete.
}
case KEY_DC:
{
if ((x-minx)+beginning == tmp.length())
break;
tmp.erase(tmp.begin()+(x-minx)+beginning);
if (beginning && beginning == maxbeginning && x < maxx)
x++;
break;
}
case KEY_HOME:
{
x = minx;
beginning = 0;
break;
}
case KEY_END:
{
x = maxx;
beginning = maxbeginning;
break;
}
case 10:
break;
default:
{
if (tmp.length() >= length)
break;
tmp_in += input;
if ((int)mbrtowc(&wc_in, tmp_in.c_str(), MB_CUR_MAX, &state) < 0)
break;
if ((x-minx)+beginning >= tmp.length())
{
tmp.push_back(wc_in);
if (!beginning)
x++;
beginning++;
}
else
{
tmp.insert(tmp.begin()+(x-minx)+beginning, wc_in);
if (x < maxx)
x++;
else if (beginning < maxbeginning)
beginning++;
}
tmp_in.clear();
}
}
}
while (input != 10);
curs_set(0);
return ToString(tmp);
}
void Window::GetXY(int &x, int &y)
{
getyx(itsWindow, y, x);
itsX = x;
itsY = y;
}
void Window::GotoXY(int x, int y)
{
wmove(itsWindow, y, x);
itsX = x;
itsY = y;
}
const int &Window::X() const
{
return itsX;
}
const int &Window::Y() const
{
return itsY;
}
void Window::Scrollable(bool scrollable) const
{
scrollok(itsWindow, scrollable);
idlok(itsWindow, scrollable);
}
size_t Window::GetWidth() const
{
if (itsBorder != brNone)
return itsWidth+2;
else
return itsWidth;
}
size_t Window::GetHeight() const
{
size_t height = itsHeight;
if (itsBorder != brNone)
height += 2;
if (!itsTitle.empty())
height += 2;
return height;
}
size_t Window::GetStartX() const
{
if (itsBorder != brNone)
return itsStartX-1;
else
return itsStartX;
}
size_t Window::GetStartY() const
{
size_t starty = itsStartY;
if (itsBorder != brNone)
starty--;
if (!itsTitle.empty())
starty -= 2;
return starty;
}
const string &Window::GetTitle() const
{
return itsTitle;
}
Color Window::GetColor() const
{
return itsColor;
}
Border Window::GetBorder() const
{
return itsBorder;
}
void Window::Scroll(Where where)
{
idlok(itsWindow, 1);
scrollok(itsWindow, 1);
switch (where)
{
case wUp:
wscrl(itsWindow, 1);
break;
case wDown:
wscrl(itsWindow, -1);
break;
case wPageUp:
wscrl(itsWindow, itsWidth);
break;
case wPageDown:
wscrl(itsWindow, -itsWidth);
break;
default:
break;
}
idlok(itsWindow, 0);
scrollok(itsWindow, 0);
}
Window &Window::operator<<(const Colors &colors)
{
if (colors.fg == clEnd || colors.bg == clEnd)
return *this;
itsColors.push(colors);
SetColor(colors.fg, colors.bg);
return *this;
}
Window &Window::operator<<(const Color &color)
{
switch (color)
{
case clDefault:
while (!itsColors.empty())
itsColors.pop();
SetColor(itsBaseColor, itsBaseBgColor);
break;
case clEnd:
if (!itsColors.empty())
itsColors.pop();
if (!itsColors.empty())
SetColor(itsColors.top().fg, itsColors.top().bg);
else
SetColor(itsBaseColor, itsBaseBgColor);
break;
default:
itsColors.push(Colors(color, clDefault));
SetColor(itsColors.top().fg, itsColors.top().bg);
}
return *this;
}
Window &Window::operator<<(const Format &format)
{
switch (format)
{
case fmtNone:
Bold(0);
Reverse(0);
AltCharset(0);
break;
case fmtBold:
Bold(1);
break;
case fmtBoldEnd:
Bold(0);
break;
case fmtReverse:
Reverse(1);
break;
case fmtReverseEnd:
Reverse(0);
break;
case fmtAltCharset:
AltCharset(1);
break;
case fmtAltCharsetEnd:
AltCharset(0);
break;
}
return *this;
}
Window &Window::operator<<(const XY &coords)
{
GotoXY(coords.x, coords.y);
return *this;
}
Window &Window::operator<<(const char *s)
{
wprintw(itsWindow, "%s", s);
return *this;
}
Window &Window::operator<<(const char &c)
{
wprintw(itsWindow, "%c", c);
return *this;
}
Window &Window::operator<<(const wchar_t *ws)
{
wprintw(itsWindow, "%ls", ws);
return *this;
}
Window &Window::operator<<(const wchar_t &wc)
{
wprintw(itsWindow, "%lc", wc);
return *this;
}
Window &Window::operator<<(const int &i)
{
wprintw(itsWindow, "%d", i);
return *this;
}
Window &Window::operator<<(const double &d)
{
wprintw(itsWindow, "%f", d);
return *this;
}
Window &Window::operator<<(const string &s)
{
wprintw(itsWindow, "%s", s.c_str());
return *this;
}
Window &Window::operator<<(const wstring &ws)
{
for (wstring::const_iterator it = ws.begin(); it != ws.end(); it++)
wprintw(itsWindow, "%lc", *it);
return *this;
}
Window &Window::operator<<(const size_t &s)
{
wprintw(itsWindow, "%u", s);
return *this;
}
Window * Window::EmptyClone() const
{
return new Window(GetStartX(), GetStartY(), GetWidth(), GetHeight(), itsTitle, itsBaseColor, itsBorder);
}
char *ToString(const wchar_t *ws)
{
mbstate_t mbs;
memset(&mbs, 0, sizeof(mbs));
size_t len = wcsrtombs(NULL, &ws, 0, &mbs);
if (len == size_t(-1))
return 0;
char *s = new char[len+1]();
wcsrtombs(s, &ws, len, &mbs);
s[len] = 0;
return s;
}
wchar_t *ToWString(const char *s)
{
mbstate_t mbs;
memset(&mbs, 0, sizeof(mbs));
size_t len = mbsrtowcs(NULL, &s, 0, &mbs);
if (len == size_t(-1))
return 0;
wchar_t *ws = new wchar_t[len+1]();
mbsrtowcs(ws, &s, len, &mbs);
ws[len] = 0;
return ws;
}
string ToString(const wstring &ws)
{
string result;
char *s = ToString(ws.c_str());
if (s)
{
result = s;
delete [] s;
}
return result;
}
wstring ToWString(const string &s)
{
wstring result;
wchar_t *ws = ToWString(s.c_str());
if (ws)
{
result = ws;
delete [] ws;
}
return result;
}
size_t Window::Length(const wstring &ws)
{
size_t length = 0;
for (wstring::const_iterator it = ws.begin(); it != ws.end(); it++)
length += wcwidth(*it);
return length;
}