/*
* print a string in the window
*/
void wdg_scroll_print(wdg_t *wo, int color, char *fmt, ...)
{
WDG_WO_EXT(struct wdg_scroll, ww);
size_t c = wdg_get_ncols(wo);
size_t l = wdg_get_nlines(wo);
size_t x = wdg_get_begin_x(wo);
size_t y = wdg_get_begin_y(wo);
va_list ap;
WDG_DEBUG_MSG("wdg_scroll_print");
/* move to the bottom of the pad */
wdg_set_scroll(wo, ww->y_max - l + 1);
wbkgdset(ww->sub, COLOR_PAIR(color));
/* print the message */
va_start(ap, fmt);
vw_printw(ww->sub, fmt, ap);
va_end(ap);
wbkgdset(ww->sub, COLOR_PAIR(wo->window_color));
WDG_PAD_REFRESH(ww, c, l, x, y);
}
/*
* called by the messages dispatcher when the window is focused
*/
static int wdg_scroll_get_msg(struct wdg_object *wo, int key, struct wdg_mouse_event *mouse)
{
WDG_WO_EXT(struct wdg_scroll, ww);
size_t c = wdg_get_ncols(wo);
size_t l = wdg_get_nlines(wo);
size_t x = wdg_get_begin_x(wo);
size_t y = wdg_get_begin_y(wo);
/* handle the message */
switch (key) {
case KEY_MOUSE:
/* is the mouse event within our edges ? */
if (wenclose(ww->win, mouse->y, mouse->x)) {
/* get the focus only if it was not focused */
if (!(wo->flags & WDG_OBJ_FOCUSED))
wdg_set_focus(wo);
if (mouse->x == x + c - 1 && (mouse->y >= y + 1 && mouse->y <= y + l - 1)) {
wdg_mouse_scroll(wo, mouse->y);
WDG_PAD_REFRESH(ww, c, l, x, y);
wnoutrefresh(ww->win);
}
} else
return -WDG_ENOTHANDLED;
break;
/* handle scrolling of the pad */
case KEY_UP:
wdg_set_scroll(wo, ww->y_scroll - 1);
WDG_PAD_REFRESH(ww, c, l, x, y);
wnoutrefresh(ww->win);
break;
case KEY_DOWN:
wdg_set_scroll(wo, ww->y_scroll + 1);
WDG_PAD_REFRESH(ww, c, l, x, y);
wnoutrefresh(ww->win);
break;
case KEY_NPAGE:
wdg_set_scroll(wo, ww->y_scroll + (l - 2));
WDG_PAD_REFRESH(ww, c, l, x, y);
wnoutrefresh(ww->win);
break;
case KEY_PPAGE:
wdg_set_scroll(wo, ww->y_scroll - (l - 2));
WDG_PAD_REFRESH(ww, c, l, x, y);
wnoutrefresh(ww->win);
break;
/* message not handled */
default:
return -WDG_ENOTHANDLED;
break;
}
return WDG_ESUCCESS;
}
/*
* erase the subwindow
*/
void wdg_scroll_erase(wdg_t *wo)
{
WDG_WO_EXT(struct wdg_scroll, ww);
size_t c = wdg_get_ncols(wo);
size_t l = wdg_get_nlines(wo);
size_t x = wdg_get_begin_x(wo);
size_t y = wdg_get_begin_y(wo);
werase(ww->sub);
WDG_PAD_REFRESH(ww, c, l, x, y);
}
/*
* set the dimension of the pad
*/
void wdg_scroll_set_lines(wdg_t *wo, size_t lines)
{
WDG_WO_EXT(struct wdg_scroll, ww);
size_t c = wdg_get_ncols(wo);
size_t l = wdg_get_nlines(wo);
size_t oldlines = ww->y_max;
WDG_DEBUG_MSG("wdg_scroll_set_lines");
/* resize the pad */
wresize(ww->sub, lines, c - 2);
/* do the proper adjustements to the scroller */
ww->y_max = lines;
wdg_set_scroll(wo, ww->y_max - l + 1);
/* adjust only the first time (when the user requests the change) */
if (oldlines != lines)
wmove(ww->sub, ww->y_scroll + 1, 0);
}
/*
* jump to a scroll position with the mouse
*/
static void wdg_mouse_scroll(struct wdg_object *wo, int s)
{
WDG_WO_EXT(struct wdg_scroll, ww);
size_t l = wdg_get_nlines(wo);
size_t y = wdg_get_begin_y(wo);
size_t base;
/* calculate the relative displacement */
base = s - y - 1;
/* special case for top and bottom */
if (base == 0)
s = 0;
else if (base == l - 3)
s = ww->y_max - l + 1;
/* else calulate the proportion */
else
s = base * ww->y_max / (l - 2);
/* set the scroller */
wdg_set_scroll(wo, s);
}
/*
* set the scroll pointer and redraw
* the window elevator
*/
static void wdg_set_scroll(struct wdg_object *wo, int s)
{
WDG_WO_EXT(struct wdg_scroll, ww);
size_t c = wdg_get_ncols(wo);
size_t l = wdg_get_nlines(wo);
int min = 0;
int max = ww->y_max - l + 1;
size_t height, vpos;
/* don't go above max and below min */
if (s < min) s = min;
if (s > max) s = max;
ww->y_scroll = s;
/* compute the scroller cohordinates */
height = (l - 2) * (l - 2) / ww->y_max;
vpos = l * ww->y_scroll / ww->y_max;
height = (height < 1) ? 1 : height;
vpos = (vpos == 0) ? 1 : vpos;
vpos = (vpos > (l - 1) - height) ? (l - 1) - height : vpos;
/* hack to make sure to hit the bottom */
if (ww->y_scroll == (size_t)max)
vpos = l - 1 - height;
/* draw the scroller */
wmove(ww->win, 1, c - 1);
wvline(ww->win, ACS_CKBOARD, l - 2);
wattron(ww->win, A_REVERSE);
wmove(ww->win, vpos, c - 1);
wvline(ww->win, ACS_DIAMOND, height);
wattroff(ww->win, A_REVERSE);
}
/*
* called to redraw the file dialog
*/
static int wdg_file_redraw(struct wdg_object *wo)
{
WDG_WO_EXT(struct wdg_file_handle, ww);
size_t c, l, x, y;
WDG_DEBUG_MSG("wdg_file_redraw");
/* default dimentions */
wo->x1 = (current_screen.cols - ww->x) / 2;
wo->y1 = (current_screen.lines - ww->y) / 2;
wo->x2 = -wo->x1;
wo->y2 = -wo->y1;
c = wdg_get_ncols(wo);
l = wdg_get_nlines(wo);
x = wdg_get_begin_x(wo);
y = wdg_get_begin_y(wo);
/* deal with rouding */
if (l != ww->y) l = ww->y;
if (c != ww->x) c = ww->x;
/* the window already exist */
if (ww->win) {
/* erase the border */
wbkgd(ww->win, COLOR_PAIR(wo->screen_color));
werase(ww->win);
/* destroy the file list */
wdg_file_menu_destroy(wo);
touchwin(ww->win);
wnoutrefresh(ww->win);
/* resize the window and draw the new border */
mvwin(ww->win, y, x);
wresize(ww->win, l, c);
wbkgd(ww->win, COLOR_PAIR(wo->window_color));
werase(ww->win);
/* create the file list */
wdg_file_menu_create(wo);
touchwin(ww->win);
wdg_file_borders(wo);
/* the first time we have to allocate the window */
} else {
/* create the menu window (fixed dimensions) */
if ((ww->win = newwin(l, c, y, x)) == NULL)
return -WDG_E_FATAL;
/* create the file list */
wdg_file_menu_create(wo);
/* set the window color */
wbkgd(ww->win, COLOR_PAIR(wo->window_color));
redrawwin(ww->win);
/* draw the titles */
wdg_file_borders(wo);
/* no scrolling */
scrollok(ww->win, FALSE);
}
/* refresh the window */
touchwin(ww->win);
wnoutrefresh(ww->win);
touchwin(ww->mwin);
wnoutrefresh(ww->mwin);
wo->flags |= WDG_OBJ_VISIBLE;
return WDG_E_SUCCESS;
}
/*
* called to redraw a window
*/
static int wdg_scroll_redraw(struct wdg_object *wo)
{
WDG_WO_EXT(struct wdg_scroll, ww);
size_t c = wdg_get_ncols(wo);
size_t l = wdg_get_nlines(wo);
size_t x = wdg_get_begin_x(wo);
size_t y = wdg_get_begin_y(wo);
WDG_DEBUG_MSG("wdg_scroll_redraw");
/* the window already exist */
if (ww->win) {
/* erase the border */
wbkgd(ww->win, COLOR_PAIR(wo->screen_color));
werase(ww->win);
touchwin(ww->win);
wnoutrefresh(ww->win);
/* resize the window and draw the new border */
mvwin(ww->win, y, x);
wresize(ww->win, l, c);
wdg_scroll_border(wo);
/* set the window color */
wbkgd(ww->sub, COLOR_PAIR(wo->window_color));
touchwin(ww->sub);
/* the pad is resized only orizzontally.
* the vertical dimension can be larger than the screen */
wdg_scroll_set_lines(wo, ww->y_max);
/* refresh it */
WDG_PAD_REFRESH(ww, c, l, x, y);
/* the first time we have to allocate the window */
} else {
/* a default value waiting for wdg_scroll_set_lines() */
ww->y_max = l * 5;
/* create the outher window */
if ((ww->win = newwin(l, c, y, x)) == NULL)
return -WDG_EFATAL;
/* draw the borders */
wdg_scroll_border(wo);
/* initialize the pointer */
wdg_set_scroll(wo, ww->y_max - l + 1);
/* create the inner (actual) window */
if ((ww->sub = newpad(ww->y_max, c - 2)) == NULL)
return -WDG_EFATAL;
/* set the window color */
wbkgd(ww->sub, COLOR_PAIR(wo->window_color));
touchwin(ww->sub);
/* move to the bottom of the pad */
wmove(ww->sub, ww->y_scroll + 1, 0);
/* permit scroll in the pad */
scrollok(ww->sub, TRUE);
}
/* refresh the window */
touchwin(ww->sub);
wnoutrefresh(ww->win);
WDG_PAD_REFRESH(ww, c, l, x, y);
wo->flags |= WDG_OBJ_VISIBLE;
return WDG_ESUCCESS;
}
/*
* called to redraw a window
*/
static int wdg_window_redraw(struct wdg_object *wo)
{
WDG_WO_EXT(struct wdg_window, ww);
size_t c = wdg_get_ncols(wo);
size_t l = wdg_get_nlines(wo);
size_t x = wdg_get_begin_x(wo);
size_t y = wdg_get_begin_y(wo);
WDG_DEBUG_MSG("wdg_window_redraw");
/* the window already exist */
if (ww->win) {
/* erase the border */
wbkgd(ww->win, COLOR_PAIR(wo->screen_color));
werase(ww->win);
touchwin(ww->win);
wnoutrefresh(ww->win);
/* resize the window and draw the new border */
mvwin(ww->win, y, x);
wresize(ww->win, l, c);
wdg_window_border(wo);
/* resize the actual window and touch it */
mvwin(ww->sub, y + 1, x + 1);
wresize(ww->sub, l - 2, c - 2);
/* set the window color */
wbkgd(ww->sub, COLOR_PAIR(wo->window_color));
/* the first time we have to allocate the window */
} else {
/* create the outher window */
if ((ww->win = newwin(l, c, y, x)) == NULL)
return -WDG_EFATAL;
/* draw the borders */
wdg_window_border(wo);
/* create the inner (actual) window */
if ((ww->sub = newwin(l - 2, c - 2, y + 1, x + 1)) == NULL)
return -WDG_EFATAL;
/* set the window color */
wbkgd(ww->sub, COLOR_PAIR(wo->window_color));
werase(ww->sub);
redrawwin(ww->sub);
/* initialize the pointer */
wmove(ww->sub, 0, 0);
scrollok(ww->sub, TRUE);
}
/* refresh the window */
redrawwin(ww->sub);
redrawwin(ww->win);
wnoutrefresh(ww->win);
wnoutrefresh(ww->sub);
wo->flags |= WDG_OBJ_VISIBLE;
return WDG_ESUCCESS;
}
/*
* called to redraw a window
*/
static int wdg_dialog_redraw(struct wdg_object *wo)
{
WDG_WO_EXT(struct wdg_dialog, ww);
size_t c, l, x, y;
size_t lines, cols;
WDG_DEBUG_MSG("wdg_dialog_redraw");
/* calculate the dimension and position */
wdg_dialog_get_size(wo, &lines, &cols);
/* center on the screen, but not outside the edges */
if (cols + 4 >= current_screen.cols)
wo->x1 = 0;
else
wo->x1 = (current_screen.cols - (cols + 4)) / 2;
wo->y1 = (current_screen.lines - (lines + 4)) / 2;
wo->x2 = -wo->x1;
wo->y2 = -wo->y1;
/* get the cohorditates as usual */
c = wdg_get_ncols(wo);
l = wdg_get_nlines(wo);
x = wdg_get_begin_x(wo);
y = wdg_get_begin_y(wo);
/* deal with rouding */
if (l != lines + 4) l = lines + 4;
if (c != cols + 4) c = cols + 4;
/* the window already exist */
if (ww->win) {
/* erase the border */
wbkgd(ww->win, COLOR_PAIR(wo->screen_color));
werase(ww->win);
touchwin(ww->win);
wnoutrefresh(ww->win);
/* resize the window and draw the new border */
mvwin(ww->win, y, x);
wresize(ww->win, l, c);
wdg_dialog_border(wo);
wdg_dialog_buttons(wo);
/* resize the actual window and touch it */
mvwin(ww->sub, y + 2, x + 2);
wresize(ww->sub, l - 4, c - 4);
/* set the window color */
wbkgdset(ww->sub, COLOR_PAIR(wo->window_color));
/* the first time we have to allocate the window */
} else {
/* create the outher window */
if ((ww->win = newwin(l, c, y, x)) == NULL)
return -WDG_EFATAL;
/* draw the borders */
wdg_dialog_border(wo);
wdg_dialog_buttons(wo);
/* create the inner (actual) window */
if ((ww->sub = newwin(l - 4, c - 4, y + 2, x + 2)) == NULL)
return -WDG_EFATAL;
/* set the window color */
wbkgdset(ww->sub, COLOR_PAIR(wo->window_color));
werase(ww->sub);
redrawwin(ww->sub);
}
/* print the message text */
wmove(ww->sub, 0, 0);
wprintw(ww->sub, ww->text);
/* refresh the window */
redrawwin(ww->sub);
redrawwin(ww->win);
wnoutrefresh(ww->win);
wnoutrefresh(ww->sub);
wo->flags |= WDG_OBJ_VISIBLE;
return WDG_ESUCCESS;
}
/*
* called to redraw a window
*/
static int wdg_percentage_redraw(struct wdg_object *wo)
{
WDG_WO_EXT(struct wdg_percentage, ww);
size_t c, l, x, y;
size_t cols;
/* calculate the dimension and position */
cols = strlen(wo->title) + 2;
/* set the minimum */
if (cols < 45)
cols = 45;
/* center on the screen, but not outside the edges */
if (cols + 4 >= current_screen.cols)
wo->x1 = 0;
else
wo->x1 = (current_screen.cols - (cols + 4)) / 2;
wo->y1 = (current_screen.lines - 7) / 2;
wo->x2 = -wo->x1;
wo->y2 = -wo->y1;
c = wdg_get_ncols(wo);
l = wdg_get_nlines(wo);
x = wdg_get_begin_x(wo);
y = wdg_get_begin_y(wo);
/* the window already exist */
if (ww->win) {
/* erase the border */
wbkgd(ww->win, COLOR_PAIR(wo->screen_color));
werase(ww->win);
touchwin(ww->win);
wnoutrefresh(ww->win);
/* resize the window and draw the new border */
mvwin(ww->win, y, x);
wresize(ww->win, l, c);
wdg_percentage_border(wo);
/* resize the actual window and touch it */
mvwin(ww->sub, y + 1, x + 1);
wresize(ww->sub, l - 2, c - 2);
/* set the window color */
wbkgdset(ww->sub, COLOR_PAIR(wo->window_color));
/* the first time we have to allocate the window */
} else {
/* create the outher window */
if ((ww->win = newwin(l, c, y, x)) == NULL)
return -WDG_E_FATAL;
/* draw the borders */
wdg_percentage_border(wo);
/* create the inner (actual) window */
if ((ww->sub = newwin(l - 2, c - 2, y + 1, x + 1)) == NULL)
return -WDG_E_FATAL;
/* set the window color */
wbkgdset(ww->sub, COLOR_PAIR(wo->window_color));
werase(ww->sub);
redrawwin(ww->sub);
/* initialize the pointer */
wmove(ww->sub, 0, 0);
scrollok(ww->sub, TRUE);
}
/* refresh the window */
redrawwin(ww->sub);
redrawwin(ww->win);
wnoutrefresh(ww->win);
wnoutrefresh(ww->sub);
wo->flags |= WDG_OBJ_VISIBLE;
return WDG_E_SUCCESS;
}
