#include "windows.h"
#include <stdint.h> /* for uint8_t, uint16_t, uint32_t, UINT16_MAX */
-#include <ncurses.h> /* for typedefs WINDOW, chtype, wresize(), getmaxx(), */
- /* getmaxy(), delwin(), mvwaddch(), mvwaddstr(), */
- /* newpad(), wnoutrefres(), erase(), werase(), */
- /* pnoutrefresh(), doupdate(), getmaxyx() */
-#include <stdlib.h> /* for malloc(), free() */
+#include <ncurses.h> /* for typedefs chtype, wresize(), getmaxx(), getmaxy(),
+ * delwin(), mvwaddch(), mvwaddstr(), newpad(), erase(),
+ * wnoutrefresh(), werase(), pnoutrefresh(), doupdate()
+ */
+#include <stdlib.h> /* for free() */
#include <string.h> /* for strlen(), strnlen(), memcpy() */
#include "yx_uint16.h" /* for struct yx_uint16 */
-#include "misc.h" /* for center_offset() */
+#include "misc.h" /* for center_offset(), try_malloc() */
+#include "main.h" /* for world global */
+#include "rexit.h" /* for exit_err() */
-/* Fit virtual screen's width to minimum width demanded by current windows'
- * geometries.
- */
-static uint8_t refit_pad(struct WinMeta * wmeta);
-
-
+/* Make virtual screen just wide enough to contain all visible windows. */
+static void refit_pad();
/* Update geometry (sizes, positions) of window "w" and its successors in the
- * window chain. For the positioning algorithm place_win() is used.
+ * window chain. Use place_win() for the positioning algorithm.
*/
-static uint8_t update_wins(struct WinMeta * wmeta, struct Win * w);
-static void place_win(struct WinMeta * wmeta, struct Win * w);
-
-
-
-/* Draw scroll hint (a line stating that there are "dist" more elements of
- * "unit" further into the direction symbolized by the "dir" char) into virtual
- * screen pad, onto an appropriate edge of "frame": the left or right edge if
- * "dir" is "<" or ">", or the upper or lower edge if it is "^" or "v". "start"
- * should be either the start coordinate of "frame" if it describes a window or
- * .y=, .x=wm->pad_offset if it describes the virtual screen. winscroll_hint()
- * and padscroll_hint() are wrappers to simplify the use of scroll_hint().
+static void update_wins(struct Win * w);
+static void place_win(struct Win * w);
+
+/* Draw scroll hint (a line saying that there are "dist" more elements of "unit"
+ * further into the direction symbolized by "dir") into virtual screen, onto an
+ * appropriate edge of a window or the screen; the left/right edge if "dir" is
+ * "<"/">", or the top/bottom edge if it is "^"/"v". "start" be either the start
+ * coordinate of a window's frame, or .y=0, .x=wm->pad_offset for the virtual
+ * screen. winscroll_hint() and padscroll_hint() are wrappers to both cases.
*/
-static void scroll_hint(struct WinMeta * wm, struct Frame * frame, char dir,
- uint16_t dist, char * unit, struct yx_uint16 start);
-static void winscroll_hint(struct WinMeta * wm, struct Win * w, char dir,
- uint16_t dist);
-static void padscroll_hint(struct WinMeta * wm, char dir, uint16_t dist);
-
-
+static void scroll_hint(struct yx_uint16 fsize, char dir, uint16_t dist,
+ char * unit, struct yx_uint16 start);
+static void winscroll_hint(struct Win * w, char dir, uint16_t dist);
+static void padscroll_hint(char dir, uint16_t dist);
/* Draw contents of all windows in window chain from window "w" onwards. */
-static uint8_t draw_wins(struct WinMeta * wm, struct Win * w);
-
+static void draw_wins(struct Win * w);
-
-/* draw_win_borderlines() draws the vertical and horizontal borders of window
- * "w" sans corners into the virtual screen "pad", and draws the top border
- * line as the windows' title bar (highlighted if the window is described
- * active by "active" being == 1).
- *
- * draw_wins_borderlines() calls draw_win_borderlines() recursively on all
- * windows from "w" on. "w_active" is a pointer to the one window that
- * draw_win_borderlines() is supposed to handle as the active window.
- *
- * Finally, draw_wins_bordercorners() draws into "pad" the borders of window "w"
- * and all its successors.
+/* draw_win_borderlines() draws vertical/horizontal borders of window "w" sans
+ * corners into the virtual screen. It draws the top border line as the windows'
+ * title bar (highlighted if the window is selected as active). It is called
+ * recursively by draw_wins_borderlines() on all windows from "w" on.
+ * draw_wins_bordercorners() draws the border corners of "w" and its successors.
*/
-static void draw_win_borderlines(struct Win * w, char active, WINDOW * pad);
-static void draw_wins_borderlines(struct Win * w, struct Win * w_active,
- WINDOW * pad);
-static void draw_wins_bordercorners(struct Win * w, WINDOW * pad);
-
-
+static void draw_win_borderlines(struct Win * w);
+static void draw_wins_borderlines(struct Win * w);
+static void draw_wins_bordercorners(struct Win * w);
/* Shift active window forwards / backwards in window chain. */
-static void shift_win_forward(struct WinMeta * wmeta);
-static void shift_win_backward(struct WinMeta * wmeta);
+static void shift_win_forward();
+static void shift_win_backward();
-static uint8_t refit_pad(struct WinMeta * wmeta)
+static void refit_pad()
{
/* Determine rightmost window column. */
- uint32_t lastwincol = 0;
- struct Win * w_p = wmeta->chain_start;
- while (w_p != 0)
+ uint32_t lastwcol = 0;
+ struct Win * wp = world.wmeta->chain_start;
+ while (wp != 0)
{
- if ((uint32_t) w_p->start.x + (uint32_t) w_p->frame.size.x
- > lastwincol + 1)
+ if ((uint32_t) wp->start.x + (uint32_t) wp->framesize.x > lastwcol + 1)
{
- lastwincol = (uint32_t) w_p->start.x
- + (uint32_t) w_p->frame.size.x - 1;
+ lastwcol = (uint32_t) wp->start.x + (uint32_t) wp->framesize.x - 1;
}
- w_p = w_p->next;
+ wp = wp->next;
}
/* Only resize the pad if the rightmost window column has changed. */
- if (getmaxx(wmeta->padframe.curses_win) + 1 != lastwincol)
+ char * err_s = "refit_pad() extends virtual screen beyond legal sizes.";
+ char * err_m = "refit_pad() triggers memory alloc error via wresize().";
+ if (getmaxx(world.wmeta->pad) + 1 != lastwcol)
{
- if (lastwincol + 2 > UINT16_MAX)
- {
- return 2;
- }
- return (ERR == wresize(wmeta->padframe.curses_win,
- getmaxy(wmeta->padframe.curses_win),
- lastwincol + 2));
+ uint8_t t = (lastwcol + 2 > UINT16_MAX);
+ exit_err(t, err_s);
+ t = wresize(world.wmeta->pad, getmaxy(world.wmeta->pad), lastwcol + 2);
+ exit_err(t, err_m);
}
- return 0;
}
-static uint8_t update_wins(struct WinMeta * wmeta, struct Win * w)
+static void update_wins(struct Win * w)
{
- place_win(wmeta, w);
- uint8_t test_refit = refit_pad(wmeta);
- if (0 != test_refit)
- {
- return test_refit;
- }
+ place_win(w);
+ refit_pad();
if (0 != w->next)
{
- return update_wins(wmeta, w->next);
+ update_wins(w->next);
}
- return 0;
}
-static void place_win(struct WinMeta * wmeta, struct Win * w)
+static void place_win(struct Win * w)
{
- /* First window goes into the upper-left corner. */
+ /* If w is first window, it goes into the top left corner. */
w->start.x = 0;
w->start.y = 1; /* Leave space for title bar. */
if (0 != w->prev)
{
- /* Non-first window fallbacks to: fit rightwards of rightmost border. */
+ /* If not, fit w's top left to top right of last top predecessor. */
struct Win * w_top = w->prev;
while (w_top->start.y != 1)
{
w_top = w_top->prev;
}
- w->start.x = w_top->start.x + w_top->frame.size.x + 1;
+ w->start.x = w_top->start.x + w_top->framesize.x + 1;
- /* Fit window below its predecessor if that one directly thrones over
- * empty space wide and high enough.
- */
- uint16_t w_prev_maxy = w->prev->start.y + w->prev->frame.size.y;
- if ( w->frame.size.x <= w->prev->frame.size.x
- && w->frame.size.y < wmeta->padframe.size.y - w_prev_maxy)
+ /* Fit w's top left to bottom left of its ->prev if enough space. */
+ uint16_t w_prev_maxy = w->prev->start.y + w->prev->framesize.y;
+ if ( w->framesize.x <= w->prev->framesize.x
+ && w->framesize.y < world.wmeta->padsize.y - w_prev_maxy)
{
w->start.x = w->prev->start.x;
w->start.y = w_prev_maxy + 1;
}
- /* Failing that, try to open a new sub column below the nearest
- * predecessor window that thrones over enough empty space.
+ /* Failing that, try to fit w' top left to the top right of the last
+ * predecessor w_test 1) not followed by windows with a left corner
+ * further rightwards than its own 2) with enough space rightwards for w
+ * until the bottom right of w_thr directly throning over it 3) and with
+ * this same space extending far enough to the bottom for fitting in w.
*/
else
{
- struct Win * w_up = w->prev;
- struct Win * w_upup = w_up;
- uint16_t widthdiff;
- while (w_up != w_top)
+ struct Win * w_test = w->prev;
+ struct Win * w_thr;
+ while (w_test != w_top)
{
- w_upup = w_up->prev;
- while (1)
- {
- if (w_up->start.y != w_upup->start.y)
- {
- break;
- }
- w_upup = w_upup->prev;
- }
- w_prev_maxy = w_upup->start.y + w_upup->frame.size.y;
- widthdiff = (w_upup->start.x + w_upup->frame.size.x)
- - (w_up->start.x + w_up->frame.size.x);
- if ( w->frame.size.y < wmeta->padframe.size.y - w_prev_maxy
- && w->frame.size.x < widthdiff)
+ w_thr = w_test->prev;
+ for (; w_test->start.y <= w_thr->start.y; w_thr = w_thr->prev);
+ uint16_t w_thr_bottom = w_thr->start.y + w_thr->framesize.y;
+ uint16_t free_width = (w_thr->start.x + w_thr->framesize.x)
+ - (w_test->start.x + w_test->framesize.x);
+ if ( w->framesize.y < world.wmeta->padsize.y - w_thr_bottom
+ && w->framesize.x < free_width)
{
- w->start.x = w_up->start.x + w_up->frame.size.x + 1 ;
- w->start.y = w_prev_maxy + 1;
+ w->start.x = w_test->start.x + w_test->framesize.x + 1;
+ w->start.y = w_thr_bottom + 1;
break;
}
- w_up = w_upup;
+ w_test = w_thr;
}
}
}
-static void scroll_hint(struct WinMeta * wm, struct Frame * frame, char dir,
- uint16_t dist, char * unit, struct yx_uint16 start)
+static void scroll_hint(struct yx_uint16 fsize, char dir, uint16_t dist,
+ char * unit, struct yx_uint16 start)
{
/* Decide on alignment (vertical/horizontal?), thereby hint text space. */
char * more = "more";
- uint16_t dsc_space = frame->size.x;
+ uint16_t dsc_space = fsize.x;
if ('<' == dir || '>' == dir)
{
- dsc_space = frame->size.y;
+ dsc_space = fsize.y;
} /* vv-- 10 = max strlen for uint16_t */
char scrolldsc[1 + strlen(more) + 1 + 10 + 1 + strlen(unit) + 1 + 1];
sprintf(scrolldsc, " %d %s %s ", dist, more, unit);
uint16_t draw_offset = 0;
if ('>' == dir)
{
- draw_offset = frame->size.x - 1;
+ draw_offset = fsize.x - 1;
}
else if ('v' == dir)
{
- draw_offset = frame->size.y - 1;
+ draw_offset = fsize.y - 1;
}
uint16_t q = 0;
for (; q < dsc_space; q++)
{
- chtype symbol = dir | A_REVERSE;
+ chtype c = dir | A_REVERSE;
if (q >= dsc_offset && q < strlen(scrolldsc) + dsc_offset)
{
- symbol = scrolldsc[q - dsc_offset] | A_REVERSE;
+ c = scrolldsc[q - dsc_offset] | A_REVERSE;
}
if ('<' == dir || '>' == dir)
{
- mvwaddch(wm->padframe.curses_win,
- start.y + q, start.x + draw_offset, symbol);
- }
- else
- {
- mvwaddch(wm->padframe.curses_win,
- start.y + draw_offset, start.x + q, symbol);
+ mvwaddch(world.wmeta->pad, start.y + q, start.x + draw_offset, c);
+ continue;
}
+ mvwaddch(world.wmeta->pad, start.y + draw_offset, start.x + q, c);
}
}
-static void padscroll_hint(struct WinMeta * wm, char dir, uint16_t dist)
+static void padscroll_hint(char dir, uint16_t dist)
{
struct yx_uint16 start;
start.y = 0;
- start.x = wm->pad_offset;
- scroll_hint(wm, &wm->padframe, dir, dist, "columns", start);
+ start.x = world.wmeta->pad_offset;
+ scroll_hint(world.wmeta->padsize, dir, dist, "columns", start);
}
-static void winscroll_hint(struct WinMeta * wm, struct Win * w, char dir,
- uint16_t dist)
+static void winscroll_hint(struct Win * w, char dir, uint16_t dist)
{
char * unit = "lines";
if ('<' == dir || '>' == dir)
unit = "columns";
}
struct yx_uint16 start = w->start;
- scroll_hint(wm, &w->frame, dir, dist, unit, start);
+ scroll_hint(w->framesize, dir, dist, unit, start);
}
-static uint8_t draw_wins(struct WinMeta * wm, struct Win * w)
+static void draw_wins(struct Win * w)
{
- if (ERR == wresize(w->frame.curses_win, 1, 1))
- {
- return 1;
- }
w->draw(w);
- uint16_t y, x, size_y, size_x;
- getmaxyx(w->frame.curses_win, size_y, size_x);
- uint16_t offset_y = center_offset(w->center.y, size_y, w->frame.size.y);
- uint16_t offset_x = center_offset(w->center.x, size_x, w->frame.size.x);
- for (y = offset_y; y < w->frame.size.y + offset_y && y < size_y; y++)
+ uint16_t size_y = w->winmapsize.y;
+ uint16_t size_x = w->winmapsize.x;
+ uint16_t offset_y = center_offset(w->center.y, size_y, w->framesize.y);
+ uint16_t offset_x = center_offset(w->center.x, size_x, w->framesize.x);
+ uint16_t y, x;
+ for (y = offset_y; y < w->framesize.y + offset_y && y < size_y; y++)
{
- for (x = offset_x; x < w->frame.size.x + offset_x && x < size_x; x++)
+ for (x = offset_x; x < w->framesize.x + offset_x && x < size_x; x++)
{
- chtype ch = mvwinch(w->frame.curses_win, y, x);
- mvwaddch(wm->padframe.curses_win, w->start.y + (y - offset_y),
- w->start.x + (x - offset_x), ch);
+ chtype ch = w->winmap[(y * w->winmapsize.x) + x];
+ mvwaddch(world.wmeta->pad, w->start.y + (y - offset_y),
+ w->start.x + (x - offset_x), ch);
}
}
+ free(w->winmap);
+ w->winmap = NULL;
+ w->winmapsize.y = 0;
+ w->winmapsize.x = 0;
if (offset_y > 0)
{
- winscroll_hint(wm, w, '^', offset_y + 1);
+ winscroll_hint(w, '^', offset_y + 1);
}
- if (size_y > offset_y + w->frame.size.y)
+ if (size_y > offset_y + w->framesize.y)
{
- winscroll_hint(wm, w, 'v', size_y - ((offset_y + w->frame.size.y) - 1));
+ winscroll_hint(w, 'v', size_y - ((offset_y + w->framesize.y) - 1));
}
if (offset_x > 0)
{
- winscroll_hint(wm, w, '<', offset_x + 1);
+ winscroll_hint(w, '<', offset_x + 1);
}
- if (size_x > offset_x + w->frame.size.x)
+ if (size_x > offset_x + w->framesize.x)
{
- winscroll_hint(wm, w, '>', size_x - ((offset_x + w->frame.size.x) - 1));
+ winscroll_hint(w, '>', size_x - ((offset_x + w->framesize.x) - 1));
}
if (0 != w->next)
{
- return draw_wins(wm, w->next);
+ return draw_wins(w->next);
}
- return 0;
}
-static void draw_win_borderlines(struct Win * w, char active, WINDOW * pad)
+static void draw_win_borderlines(struct Win * w)
{
/* Draw vertical and horizontal border lines. */
uint16_t y, x;
- for (y = w->start.y; y <= w->start.y + w->frame.size.y; y++)
+ for (y = w->start.y; y <= w->start.y + w->framesize.y; y++)
{
- mvwaddch(pad, y, w->start.x - 1, '|');
- mvwaddch(pad, y, w->start.x + w->frame.size.x, '|');
+ mvwaddch(world.wmeta->pad, y, w->start.x - 1, '|');
+ mvwaddch(world.wmeta->pad, y, w->start.x + w->framesize.x, '|');
}
- for (x = w->start.x; x <= w->start.x + w->frame.size.x; x++)
+ for (x = w->start.x; x <= w->start.x + w->framesize.x; x++)
{
- mvwaddch(pad, w->start.y - 1, x, '-');
- mvwaddch(pad, w->start.y + w->frame.size.y, x, '-');
+ mvwaddch(world.wmeta->pad, w->start.y - 1, x, '-');
+ mvwaddch(world.wmeta->pad, w->start.y + w->framesize.y, x, '-');
}
/* Draw as much as possible of the title into center of top border line. */
char min_title_length_visible = 3; /* min. 1 char + 2 padding/decoration */
- if (w->frame.size.x >= min_title_length_visible)
+ if (w->framesize.x >= min_title_length_visible)
{
uint16_t title_offset = 0;
- if (w->frame.size.x > strlen(w->title) + 2)
+ if (w->framesize.x > strlen(w->title) + 2)
{
- title_offset = (w->frame.size.x - (strlen(w->title) + 2)) / 2;
+ title_offset = (w->framesize.x - (strlen(w->title) + 2)) / 2;
} /* +2 is for padding/decoration */
- uint16_t length_visible = strnlen(w->title, w->frame.size.x - 2);
+ uint16_t length_visible = strnlen(w->title, w->framesize.x - 2);
char title[length_visible + 3];
char decoration = ' ';
- if (1 == active)
+ if (w == world.wmeta->active)
{
decoration = '$';
}
memcpy(title + 1, w->title, length_visible);
title[0] = title[length_visible + 1] = decoration;
title[length_visible + 2] = '\0';
- mvwaddstr(pad, w->start.y - 1, w->start.x + title_offset, title);
+ mvwaddstr(world.wmeta->pad,
+ w->start.y - 1, w->start.x + title_offset, title);
}
}
-static void draw_wins_borderlines(struct Win * w, struct Win * w_active,
- WINDOW * pad)
+static void draw_wins_borderlines(struct Win * w)
{
- char active = 0;
- if (w == w_active)
- {
- active = 1;
- }
- draw_win_borderlines(w, active, pad);
+ draw_win_borderlines(w);
if (0 != w->next)
{
- draw_wins_borderlines(w->next, w_active, pad);
+ draw_wins_borderlines(w->next);
}
}
-static void draw_wins_bordercorners(struct Win * w, WINDOW * pad)
+static void draw_wins_bordercorners(struct Win * w)
{
- mvwaddch(pad, w->start.y - 1, w->start.x - 1, '+');
- mvwaddch(pad, w->start.y - 1, w->start.x + w->frame.size.x, '+');
- mvwaddch(pad, w->start.y + w->frame.size.y, w->start.x - 1, '+');
- mvwaddch(pad,
- w->start.y + w->frame.size.y, w->start.x + w->frame.size.x, '+');
+ mvwaddch(world.wmeta->pad, w->start.y - 1, w->start.x - 1, '+');
+ mvwaddch(world.wmeta->pad, w->start.y - 1, w->start.x + w->framesize.x,'+');
+ mvwaddch(world.wmeta->pad, w->start.y + w->framesize.y, w->start.x - 1,'+');
+ mvwaddch(world.wmeta->pad, w->start.y + w->framesize.y,
+ w->start.x + w->framesize.x, '+');
if (0 != w->next)
{
- draw_wins_bordercorners(w->next, pad);
+ draw_wins_bordercorners(w->next);
}
}
-static void shift_win_forward(struct WinMeta * wmeta)
+static void shift_win_forward()
{
- if (wmeta->active == wmeta->chain_end)
+ if (world.wmeta->active == world.wmeta->chain_end)
{
- wmeta->chain_end = wmeta->active->prev;
- wmeta->chain_end->next = 0;
- wmeta->active->next = wmeta->chain_start;
- wmeta->active->next->prev = wmeta->active;
- wmeta->chain_start = wmeta->active;
- wmeta->chain_start->prev = 0;
+ world.wmeta->chain_end = world.wmeta->active->prev;
+ world.wmeta->chain_end->next = 0;
+ world.wmeta->active->next = world.wmeta->chain_start;
+ world.wmeta->active->next->prev = world.wmeta->active;
+ world.wmeta->chain_start = world.wmeta->active;
+ world.wmeta->chain_start->prev = 0;
}
else
{
- struct Win * old_prev = wmeta->active->prev;
- struct Win * old_next = wmeta->active->next;
- if (wmeta->chain_end == wmeta->active->next)
+ struct Win * old_prev = world.wmeta->active->prev;
+ struct Win * old_next = world.wmeta->active->next;
+ if (world.wmeta->chain_end == world.wmeta->active->next)
{
- wmeta->chain_end = wmeta->active;
- wmeta->active->next = 0;
+ world.wmeta->chain_end = world.wmeta->active;
+ world.wmeta->active->next = 0;
}
else
{
- wmeta->active->next = old_next->next;
- wmeta->active->next->prev = wmeta->active;
+ world.wmeta->active->next = old_next->next;
+ world.wmeta->active->next->prev = world.wmeta->active;
}
- if (wmeta->chain_start == wmeta->active)
+ if (world.wmeta->chain_start == world.wmeta->active)
{
- wmeta->chain_start = old_next;
+ world.wmeta->chain_start = old_next;
}
else
{
old_prev->next = old_next;
}
old_next->prev = old_prev;
- old_next->next = wmeta->active;
- wmeta->active->prev = old_next;
+ old_next->next = world.wmeta->active;
+ world.wmeta->active->prev = old_next;
}
}
-static void shift_win_backward(struct WinMeta * wmeta)
+static void shift_win_backward()
{
- if (wmeta->active == wmeta->chain_start)
+ if (world.wmeta->active == world.wmeta->chain_start)
{
- wmeta->chain_start = wmeta->active->next;
- wmeta->chain_start->prev = 0;
- wmeta->active->prev = wmeta->chain_end;
- wmeta->active->prev->next = wmeta->active;
- wmeta->chain_end = wmeta->active;
- wmeta->chain_end->next = 0;
+ world.wmeta->chain_start = world.wmeta->active->next;
+ world.wmeta->chain_start->prev = 0;
+ world.wmeta->active->prev = world.wmeta->chain_end;
+ world.wmeta->active->prev->next = world.wmeta->active;
+ world.wmeta->chain_end = world.wmeta->active;
+ world.wmeta->chain_end->next = 0;
}
else
{
- struct Win * old_prev = wmeta->active->prev;
- struct Win * old_next = wmeta->active->next;
- if (wmeta->chain_start == wmeta->active->prev)
+ struct Win * old_prev = world.wmeta->active->prev;
+ struct Win * old_next = world.wmeta->active->next;
+ if (world.wmeta->chain_start == world.wmeta->active->prev)
{
- wmeta->chain_start = wmeta->active;
- wmeta->active->prev = 0;
+ world.wmeta->chain_start = world.wmeta->active;
+ world.wmeta->active->prev = 0;
}
else
{
- wmeta->active->prev = old_prev->prev;
- wmeta->active->prev->next = wmeta->active;
+ world.wmeta->active->prev = old_prev->prev;
+ world.wmeta->active->prev->next = world.wmeta->active;
}
- if (wmeta->chain_end == wmeta->active)
+ if (world.wmeta->chain_end == world.wmeta->active)
{
- wmeta->chain_end = old_prev;
+ world.wmeta->chain_end = old_prev;
}
else
{
old_next->prev = old_prev;
}
old_prev->next = old_next;
- old_prev->prev = wmeta->active;
- wmeta->active->next = old_prev;
+ old_prev->prev = world.wmeta->active;
+ world.wmeta->active->next = old_prev;
}
}
-extern uint8_t init_win_meta(WINDOW * screen, struct WinMeta ** wmp)
+extern void init_win_meta()
{
- struct WinMeta * wmeta = malloc(sizeof(struct WinMeta));
- wmeta->screen = screen;
- uint32_t maxy_test = getmaxy(screen);
- uint32_t maxx_test = getmaxx(screen);
- if (maxy_test > UINT16_MAX || maxx_test > UINT16_MAX)
- {
- return 2;
- }
- wmeta->padframe.size.y = maxy_test;
- wmeta->padframe.size.x = maxx_test;
- wmeta->chain_start = 0;
- wmeta->chain_end = 0;
- wmeta->pad_offset = 0;
- WINDOW * pad_test = newpad(wmeta->padframe.size.y, 1);
- if (NULL == pad_test)
- {
- return 1;
- }
- wmeta->padframe.curses_win = pad_test;
- wmeta->active = 0;
- *wmp = wmeta;
- return 0;
+ char * f_name = "init_win_meta()";
+ char * err_s = "init_win_meta() creates virtual screen beyond legal size.";
+ char * err_m = "init_win_meta() triggers memory alloc error via newpad().";
+ world.wmeta = try_malloc(sizeof(struct WinMeta), f_name);
+ world.wmeta->screen = initscr();
+ uint32_t maxy_test = getmaxy(world.wmeta->screen);
+ uint32_t maxx_test = getmaxx(world.wmeta->screen);
+ exit_err(maxy_test > UINT16_MAX || maxx_test > UINT16_MAX, err_s);
+ world.wmeta->padsize.y = maxy_test;
+ world.wmeta->padsize.x = maxx_test;
+ world.wmeta->chain_start = 0;
+ world.wmeta->chain_end = 0;
+ world.wmeta->pad_offset = 0;
+ world.wmeta->pad = newpad(world.wmeta->padsize.y, 1);
+ exit_err(NULL == world.wmeta->pad, err_m);
+ world.wmeta->active = 0;
}
-extern uint8_t init_win(struct WinMeta * wmeta, struct Win ** wp, char * title,
- int16_t height, int16_t width,
- void * data, void * func)
+extern void init_win(struct Win ** wp, char * title, int16_t height,
+ int16_t width, void * func)
{
- struct Win * w = malloc(sizeof(struct Win));
- if (NULL == w)
- {
- return 1;
- }
- w->prev = 0;
- w->next = 0;
- w->frame.curses_win = newpad(1, 1);
- if (NULL == w->frame.curses_win)
- {
- return 1;
- }
- w->title = malloc(strlen(title) + 1);
- if (NULL == w->title)
- {
- return 1;
- }
+ char * f_name = "init_win()";
+ struct Win * w = try_malloc(sizeof(struct Win), f_name);
+ w->prev = 0;
+ w->next = 0;
+ w->winmapsize.y = 0;
+ w->winmapsize.x = 0;
+ w->winmap = NULL;
+ w->title = try_malloc(strlen(title) + 1, f_name);
sprintf(w->title, "%s", title);
- w->data = data;
- w->draw = func;
- w->center.y = 0;
- w->center.x = 0;
+ w->draw = func;
+ w->center.y = 0;
+ w->center.x = 0;
if (0 < width)
{
- w->frame.size.x = width;
+ w->framesize.x = width;
}
else if (0 >= width)
{
- w->frame.size.x = wmeta->padframe.size.x + width;
+ w->framesize.x = world.wmeta->padsize.x + width;
}
- if (0 < height && height <= wmeta->padframe.size.y - 1)
+ if (0 < height && height <= world.wmeta->padsize.y - 1)
{
- w->frame.size.y = height;
+ w->framesize.y = height;
}
- else if (0 >= height && wmeta->padframe.size.y + (height - 1) > 0)
+ else if (0 >= height && world.wmeta->padsize.y + (height - 1) > 0)
{
- w->frame.size.y = wmeta->padframe.size.y + (height - 1);
+ w->framesize.y = world.wmeta->padsize.y + (height - 1);
}
*wp = w;
- return 0;
}
-extern void free_winmeta(struct WinMeta * wmeta)
+extern void free_winmeta_and_endwin()
{
- delwin(wmeta->padframe.curses_win);
- free(wmeta);
+ delwin(world.wmeta->pad);
+ free(world.wmeta);
+ endwin();
}
extern void free_win(struct Win * win)
{
- delwin(win->frame.curses_win);
free(win->title);
free(win);
}
-extern uint8_t append_win(struct WinMeta * wmeta, struct Win * w)
+extern void append_win(struct Win * w)
{
- if (0 != wmeta->chain_start)
+ if (0 != world.wmeta->chain_start)
{
- w->prev = wmeta->chain_end;
- wmeta->chain_end->next = w;
+ w->prev = world.wmeta->chain_end;
+ world.wmeta->chain_end->next = w;
}
else
{
- wmeta->active = w;
- wmeta->chain_start = w;
+ world.wmeta->active = w;
+ world.wmeta->chain_start = w;
}
- wmeta->chain_end = w;
- return update_wins(wmeta, w);
+ world.wmeta->chain_end = w;
+ update_wins(w);
}
-extern uint8_t suspend_win(struct WinMeta * wmeta, struct Win * w)
+extern void suspend_win(struct Win * w)
{
- if (wmeta->chain_start != w)
+ if (world.wmeta->chain_start != w)
{
w->prev->next = w->next;
}
else
{
- wmeta->chain_start = w->next;
+ world.wmeta->chain_start = w->next;
}
- char pad_refitted = 0;
- if (wmeta->chain_end != w)
+ uint8_t pad_refitted = 0;
+ if (world.wmeta->chain_end != w)
{
w->next->prev = w->prev;
- if (wmeta->active == w)
+ if (world.wmeta->active == w)
{
- wmeta->active = w->next;
+ world.wmeta->active = w->next;
}
- uint8_t test = update_wins(wmeta, w->next); /* Positioning of */
- if (0 != test) /* successor windows may */
- { /* be affected / need */
- return test; /* correction. Note that */
- } /* update_wins() already */
- pad_refitted = 1; /* refits the pad, voiding*/
- } /* later need for that. */
- else
+ update_wins(w->next); /* Positioning of successor windows may be */
+ pad_refitted = 1; /* affected / need correction. Note that */
+ } /* update_wins() already refits the pad, */
+ else /* voiding later need for that. */
{
- wmeta->chain_end = w->prev;
- if (wmeta->active == w)
+ world.wmeta->chain_end = w->prev;
+ if (world.wmeta->active == w)
{
- wmeta->active = w->prev;
+ world.wmeta->active = w->prev;
}
}
-
w->prev = 0;
w->next = 0;
-
if (0 == pad_refitted)
{
- return refit_pad(wmeta);
+ refit_pad();
}
- return 0;
}
-extern void reset_pad_offset(struct WinMeta * wmeta, uint16_t new_offset)
+extern void reset_pad_offset(uint16_t new_offset)
{
if (new_offset >= 0
- && (new_offset < wmeta->pad_offset
- || new_offset + wmeta->padframe.size.x
- < getmaxx(wmeta->padframe.curses_win)))
+ && (new_offset < world.wmeta->pad_offset
+ || new_offset + world.wmeta->padsize.x < getmaxx(world.wmeta->pad)))
{
- wmeta->pad_offset = new_offset;
+ world.wmeta->pad_offset = new_offset;
}
}
-extern uint8_t resize_active_win(struct WinMeta * wmeta, struct yx_uint16 size)
+extern void resize_active_win(struct yx_uint16 size)
{
- if (0 != wmeta->active
- && size.x > 0 && size.y > 0
- && size.y < wmeta->padframe.size.y)
+ if (0 != world.wmeta->active
+ && size.x > 0 && size.y > 0 && size.y < world.wmeta->padsize.y)
{
- wmeta->active->frame.size = size;
- return update_wins(wmeta, wmeta->active); /* Positioning of following */
+ world.wmeta->active->framesize = size;
+ update_wins(world.wmeta->active); /* Positioning of following */
} /* windows may be affected. */
- return 0;
}
-extern void cycle_active_win(struct WinMeta * wmeta, char dir)
+extern void cycle_active_win(char dir)
{
- if (0 != wmeta->active)
+ if (0 != world.wmeta->active)
{
if ('f' == dir)
{
- if (wmeta->active->next != 0)
+ if (world.wmeta->active->next != 0)
{
- wmeta->active = wmeta->active->next;
+ world.wmeta->active = world.wmeta->active->next;
}
else
{
- wmeta->active = wmeta->chain_start;
+ world.wmeta->active = world.wmeta->chain_start;
}
}
else
{
- if (wmeta->active->prev != 0)
+ if (world.wmeta->active->prev != 0)
{
- wmeta->active = wmeta->active->prev;
+ world.wmeta->active = world.wmeta->active->prev;
}
else
{
- wmeta->active = wmeta->chain_end;
+ world.wmeta->active = world.wmeta->chain_end;
}
}
}
-extern uint8_t shift_active_win(struct WinMeta * wmeta, char dir)
+extern void shift_active_win(char dir)
{
- if ( 0 == wmeta->active /* No shifting with < 2 */
- || wmeta->chain_start == wmeta->chain_end) /* windows visible. */
+ if ( 0 == world.wmeta->active /* No shifting with < 2 windows visible. */
+ || world.wmeta->chain_start == world.wmeta->chain_end)
{
- return 0;
+ return;
}
if ('f' == dir)
{
- shift_win_forward(wmeta);
- }
- else
- {
- shift_win_backward(wmeta);
+ shift_win_forward();
+ update_wins(world.wmeta->chain_start);
+ return;
}
- return update_wins(wmeta, wmeta->chain_start);
+ shift_win_backward();
+ update_wins(world.wmeta->chain_start);
}
-extern uint8_t draw_all_wins(struct WinMeta * wm)
+extern void draw_all_wins()
{
/* Empty everything before filling it a-new. */
erase();
- wnoutrefresh(wm->screen);
- werase(wm->padframe.curses_win);
- if (wm->chain_start)
+ wnoutrefresh(world.wmeta->screen);
+ werase(world.wmeta->pad);
+ if (world.wmeta->chain_start)
{
/* Draw windows' borders first, then windows. */
- draw_wins_borderlines(wm->chain_start, wm->active,
- wm->padframe.curses_win);
- draw_wins_bordercorners(wm->chain_start, wm->padframe.curses_win);
-
- if (1 == draw_wins(wm, wm->chain_start))
- {
- return 1;
- }
+ draw_wins_borderlines(world.wmeta->chain_start);
+ draw_wins_bordercorners(world.wmeta->chain_start);
+ draw_wins(world.wmeta->chain_start);
/* Draw virtual screen scroll hints. */
- if (wm->pad_offset > 0)
+ if (world.wmeta->pad_offset > 0)
{
- padscroll_hint(wm, '<', wm->pad_offset + 1);
+ padscroll_hint('<', world.wmeta->pad_offset + 1);
}
- uint16_t size_x = getmaxx(wm->padframe.curses_win);
- uint16_t right_edge = wm->pad_offset + wm->padframe.size.x;
+ uint16_t size_x = getmaxx(world.wmeta->pad);
+ uint16_t right_edge = world.wmeta->pad_offset + world.wmeta->padsize.x;
if (right_edge < size_x - 1)
{
- padscroll_hint(wm, '>', size_x - right_edge);
+ padscroll_hint('>', size_x - right_edge);
}
/* Write pad segment to be shown on physical screen to screen buffer. */
- pnoutrefresh(wm->padframe.curses_win, 0, wm->pad_offset, 0, 0,
- wm->padframe.size.y, wm->padframe.size.x - 1);
+ pnoutrefresh(world.wmeta->pad, 0, world.wmeta->pad_offset, 0, 0,
+ world.wmeta->padsize.y, world.wmeta->padsize.x - 1);
}
/* Only at the end write accumulated changes to the physical screen. */
doupdate();
- return 0;
}
projects / plomrogue / blobdiff