diff options
| -rw-r--r-- | ui.c | 58 |
1 files changed, 27 insertions, 31 deletions
@@ -44,11 +44,11 @@ #define BOTTOM (LINES - 1) #define RIGHT (COLS - 1) -#define WINDOW_LINES (LINES - 2) +#define PAGE_LINES (LINES - 2) static WINDOW *status; +static WINDOW *marker; static WINDOW *input; -static WINDOW *scrollBar; enum { BufferCap = 512 }; struct Buffer { @@ -66,6 +66,7 @@ static void bufferPush(struct Buffer *buffer, time_t time, const char *line) { if (!buffer->lines[i]) err(EX_OSERR, "strdup"); } +enum { WindowLines = BufferCap }; struct Window { size_t id; struct Buffer buffer; @@ -109,21 +110,16 @@ static struct Window *windowFor(size_t id) { if (!window) err(EX_OSERR, "malloc"); window->id = id; - window->pad = newpad(BufferCap, COLS); + window->pad = newpad(WindowLines, COLS); if (!window->pad) err(EX_OSERR, "newpad"); scrollok(window->pad, true); wmove(window->pad, BufferCap - 1, 0); - window->scroll = BufferCap; window->mark = true; windowAdd(window); return window; } -static bool windowScrolled(struct Window *window) { - return window->scroll < BufferCap; -} - static short colorPairs; static void colorInit(void) { @@ -238,31 +234,31 @@ void uiInit(void) { status = newwin(1, COLS, 0, 0); if (!status) err(EX_OSERR, "newwin"); + marker = newwin(1, COLS, LINES - 2, 0); + short fg = 8 + COLOR_BLACK; + wbkgd(marker, '~' | colorAttr(fg) | COLOR_PAIR(colorPair(fg, -1))); + input = newpad(1, 512); if (!input) err(EX_OSERR, "newpad"); keypad(input, true); nodelay(input, true); - scrollBar = newwin(1, COLS, LINES - 2, 0); - short fg = 8 + COLOR_BLACK; - wbkgd(scrollBar, '~' | colorAttr(fg) | COLOR_PAIR(colorPair(fg, -1))); - windows.active = windowFor(Network); uiShow(); } void uiDraw(void) { wnoutrefresh(status); - int scrolled = windowScrolled(windows.active); + struct Window *window = windows.active; pnoutrefresh( - windows.active->pad, - windows.active->scroll - WINDOW_LINES + scrolled, 0, + window->pad, + WindowLines - window->scroll - PAGE_LINES + !!window->scroll, 0, 1, 0, - BOTTOM - 1 - scrolled, RIGHT + BOTTOM - 1 - !!window->scroll, RIGHT ); - if (scrolled) { - touchwin(scrollBar); - wnoutrefresh(scrollBar); + if (window->scroll) { + touchwin(marker); + wnoutrefresh(marker); } int y, x; getyx(input, y, x); @@ -382,7 +378,7 @@ static void statusUpdate(void) { } static void unmark(struct Window *window) { - if (!windowScrolled(window)) { + if (!window->scroll) { window->heat = Cold; window->unread = 0; window->mark = false; @@ -391,11 +387,13 @@ static void unmark(struct Window *window) { } static void windowScroll(struct Window *window, int n) { - if (window->scroll == BufferCap) window->mark = true; + if (!window->scroll) window->mark = true; window->scroll += n; - if (window->scroll < WINDOW_LINES) window->scroll = WINDOW_LINES; - if (window->scroll > BufferCap) window->scroll = BufferCap; - if (window->scroll == BufferCap) unmark(window); + if (window->scroll > WindowLines - PAGE_LINES) { + window->scroll = WindowLines - PAGE_LINES; + } + if (window->scroll < 0) window->scroll = 0; + if (!window->scroll) unmark(window); } static int wordWidth(const char *str) { @@ -477,9 +475,7 @@ void uiWrite(size_t id, enum Heat heat, const time_t *src, const char *str) { statusUpdate(); } lines += wordWrap(window->pad, str); - if (windowScrolled(window)) { - windowScroll(window, -lines); - } + if (window->scroll) windowScroll(window, lines); if (heat > Warm) beep(); } @@ -696,15 +692,15 @@ static void keyCode(int code) { break; case KEY_BACKSPACE: edit(id, EditDeletePrev, 0); break; case KEY_DC: edit(id, EditDeleteNext, 0); - break; case KEY_DOWN: windowScroll(window, +1); + break; case KEY_DOWN: windowScroll(window, -1); break; case KEY_END: edit(id, EditTail, 0); break; case KEY_ENTER: edit(id, EditEnter, 0); break; case KEY_HOME: edit(id, EditHead, 0); break; case KEY_LEFT: edit(id, EditPrev, 0); - break; case KEY_NPAGE: windowScroll(window, +(WINDOW_LINES - 2)); - break; case KEY_PPAGE: windowScroll(window, -(WINDOW_LINES - 2)); + break; case KEY_NPAGE: windowScroll(window, -(PAGE_LINES - 2)); + break; case KEY_PPAGE: windowScroll(window, +(PAGE_LINES - 2)); break; case KEY_RIGHT: edit(id, EditNext, 0); - break; case KEY_UP: windowScroll(window, -1); + break; case KEY_UP: windowScroll(window, +1); break; default: { if (code >= KeyMeta0 && code <= KeyMeta9) { |