From: Christian Heller <c.heller@plomlompom.de>
Date: Thu, 29 Aug 2013 22:06:40 +0000 (+0200)
Subject: Negative values may now be passed to init_win() for sizes in negative relation to... 
X-Git-Tag: tce~1003
X-Git-Url: https://plomlompom.com/repos/%7B%7B%20web_path%20%7D%7D/decks/static/%7B%7Bprefix%7D%7D/test.html?a=commitdiff_plain;h=3b2c82991c9ab169b33248c7be840a9bcd351e6d;p=plomrogue

Negative values may now be passed to init_win() for sizes in negative relation to the terminal screen size.
---

diff --git a/src/main.c b/src/main.c
index 50a14a9..f637aea 100644
--- a/src/main.c
+++ b/src/main.c
@@ -204,18 +204,14 @@ int main(int argc, char *argv[])
                         "main().";
     exit_err(init_win_meta(screen, &win_meta), &world, err_winmem);
     world.wins.meta = &win_meta;
-    struct Win win_keys = init_win(&win_meta, "Keys",
-                                     0, 29, &world, draw_keys_win);
-    struct Win win_info = init_win(&win_meta, "Info",
-                                   3, 20, &world, draw_info_win);
-    uint16_t height_logwin = win_meta.padframe.size.y
-                             - (2 + win_info.frame.size.y);
-    struct Win win_log = init_win(&win_meta, "Log",
-                                  height_logwin, 20, &world, draw_log_win);
-    uint16_t width_mapwin = win_meta.padframe.size.x - win_keys.frame.size.x
-                            - win_log.frame.size.x - 2;
-    struct Win win_map = init_win(&win_meta, "Map",
-                                  0, width_mapwin, &world, draw_map_win);
+    struct Win win_keys = init_win(&win_meta,
+                                   "Keys", 0,  29, &world, draw_keys_win);
+    struct Win win_info = init_win(&win_meta,
+                                   "Info", 3,  20, &world, draw_info_win);
+    struct Win win_log  = init_win(&win_meta,
+                                  "Log",  -4,  20, &world, draw_log_win);
+    struct Win win_map  = init_win(&win_meta,
+                                  "Map",   0, -51, &world, draw_map_win);
     world.wins.keys = &win_keys;
     world.wins.log = &win_log;
     world.wins.info = &win_info;
diff --git a/src/windows.c b/src/windows.c
index 48d17f0..efba919 100644
--- a/src/windows.c
+++ b/src/windows.c
@@ -389,7 +389,7 @@ extern uint8_t init_win_meta(WINDOW * screen, struct WinMeta * wmeta)
 
 
 extern struct Win init_win(struct WinMeta * wmeta, char * title,
-                           uint16_t height, uint16_t width,
+                           int16_t height, int16_t width,
                            void * data, void * func)
 {
     struct Win w;
@@ -399,18 +399,26 @@ extern struct Win init_win(struct WinMeta * wmeta, char * title,
     w._title            = title;
     w.data              = data;
     w._draw             = func;
-    if (width > 0)
+    if      (0 < width)
     {
         w.frame.size.x = width;
     }
+    else if (0 > width)
+    {
+        w.frame.size.x = wmeta->padframe.size.x + width;
+    }
     else
     {
         w.frame.size.x = wmeta->padframe.size.x;
     }
-    if (height > 0 && height <= wmeta->padframe.size.y - 1)
+    if      (0 < height && height <= wmeta->padframe.size.y - 1)
     {
         w.frame.size.y = height;
     }
+    else if (0 > height && wmeta->padframe.size.y + (height - 1) > 0)
+    {
+        w.frame.size.y = wmeta->padframe.size.y + (height - 1);
+    }
     else
     {
         w.frame.size.y = wmeta->padframe.size.y - 1;
diff --git a/src/windows.h b/src/windows.h
index 8cb5ec1..a98bbdb 100644
--- a/src/windows.h
+++ b/src/windows.h
@@ -104,14 +104,18 @@ extern uint8_t init_win_meta(WINDOW * screen, struct WinMeta * wmeta);
  * if the window is visible.
  *
  * Pass 0 for "width" to make the window as wide as the terminal screen. Pass
- * for "height" 0 or a value larger than the maximum window height possible
- * within the virtual screen to attain that maximum window height.
+ * negative values for "width" to make the size so many cells smaller than the
+ * terminal screen. Pass 0 for "height" to give the window the maximum allowed
+ * height: one cell smaller than the terminal screen. Pass negative values to
+ * make the window so many smalls smaller than the terminal screen. The maximum
+ * allowed height is also applied for positive values that exceed it or negative
+ * values that would reduce the window height < 1 cell.
  *
  * Other members of the Win struct are initialized to 0. The window will stay
  * invisible until appended to the chain of visible windows via append_win().
  */
 extern struct Win init_win(struct WinMeta * wmeta, char * title,
-                           uint16_t height, uint16_t width,
+                           int16_t height, int16_t width,
                            void * data, void * func);