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https://git.zap.org.au/git/trader.git
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Handle KEY_RESIZE events (where defined) in a simple manner
Unfortunately, the implementation of Curses (even Ncurses) requires that to truely handle resizing, one must destroy and recreate every window (and, of course, repaint it)--a lot of work that is not done at this time.
This commit is contained in:
John Zaitseff
parent
738ffcd69a
commit
3984468894
112
src/intf.c
112
src/intf.c
@ -119,6 +119,19 @@ static void init_title (void);
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static void sigterm_handler (int sig);
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/*
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Function: txresize - Handle a terminal resize event
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Parameters: (none)
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Returns: (nothing)
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This function handles a SIGWINCH (terminal window size changed) event
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by refreshing Curses windows as appropriate.
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*/
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#ifdef HANDLE_RESIZE_EVENTS
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static void txresize (void);
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#endif
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/*
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Function: txinput_fixup - Copy strings with fixup
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Parameters: dest - Destination buffer of size BUFSIZE
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@ -464,6 +477,26 @@ int txrefresh (void)
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}
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/***********************************************************************/
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// txresize: Handle a terminal resize event
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#ifdef HANDLE_RESIZE_EVENTS
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void txresize (void)
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{
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/* The current implementation cannot resize windows per se: a given
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window would have to be destroyed and recreated in the new
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location, then redrawn, most likely via a call-back function.
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We just redraw the game title, refresh all windows and hope for
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the best! */
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init_title();
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txrefresh();
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}
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#endif // HANDLE_RESIZE_EVENTS
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/***********************************************************************/
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// attrpr: Print a string with a particular character rendition
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@ -654,11 +687,34 @@ int center3 (WINDOW *win, int y, chtype attr1, chtype attr3, chtype attr2,
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int gettxchar (WINDOW *win)
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{
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int key;
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bool done;
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keypad(win, true);
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meta(win, true);
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wtimeout(win, -1);
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return wgetch(win);
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done = false;
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while (! done) {
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key = wgetch(win);
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switch (key) {
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case ERR:
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beep();
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break;
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#ifdef HANDLE_RESIZE_EVENTS
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case KEY_RESIZE:
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txresize();
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break;
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#endif // HANDLE_RESIZE_EVENTS
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default:
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done = true;
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}
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}
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return key;
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}
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@ -1265,11 +1321,11 @@ int gettxline (WINDOW *win, char *buf, int bufsize, bool *restrict modified,
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// Miscellaneous keys and events
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#ifdef HANDLE_RESIZE_EVENTS
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case KEY_RESIZE:
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case KEY_EVENT:
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ret = key;
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done = true;
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txresize();
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break;
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#endif // HANDLE_RESIZE_EVENTS
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default:
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beep();
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@ -1279,11 +1335,11 @@ int gettxline (WINDOW *win, char *buf, int bufsize, bool *restrict modified,
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wtimeout(win, -1);
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break;
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#ifdef HANDLE_RESIZE_EVENTS
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case KEY_RESIZE:
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case KEY_EVENT:
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ret = key;
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done = true;
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txresize();
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break;
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#endif // HANDLE_RESIZE_EVENTS
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default:
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beep();
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@ -1553,11 +1609,24 @@ bool answer_yesno (WINDOW *win, chtype attr_keys)
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done = false;
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while (! done) {
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key = toupper(wgetch(win));
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key = wgetch(win);
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if (key == 'Y' || key == 'N') {
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switch (key) {
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case 'Y':
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case 'y':
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case 'N':
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case 'n':
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key = toupper(key);
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done = true;
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} else {
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break;
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#ifdef HANDLE_RESIZE_EVENTS
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case KEY_RESIZE:
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txresize();
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break;
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#endif // HANDLE_RESIZE_EVENTS
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default:
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beep();
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}
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}
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@ -1584,6 +1653,10 @@ bool answer_yesno (WINDOW *win, chtype attr_keys)
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void wait_for_key (WINDOW *win, int y, chtype attr)
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{
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int key;
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bool done;
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keypad(win, true);
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meta(win, true);
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wtimeout(win, -1);
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@ -1591,7 +1664,24 @@ void wait_for_key (WINDOW *win, int y, chtype attr)
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center(win, y, attr, "[ Press <SPACE> to continue ] ");
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wrefresh(win);
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(void) wgetch(win);
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done = false;
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while (! done) {
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key = wgetch(win);
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switch (key) {
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case ERR:
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beep();
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break;
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#ifdef HANDLE_RESIZE_EVENTS
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case KEY_RESIZE:
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txresize();
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break;
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#endif // HANDLE_RESIZE_EVENTS
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default:
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done = true;
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}
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}
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}
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30
src/intf.h
30
src/intf.h
@ -43,20 +43,27 @@
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/*
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This version of Star Traders only utilises WIN_COLS x WIN_LINES of a
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terminal screen; this terminal must be at least MIN_COLS x MIN_LINES in
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size; the newtxwin() function automatically places a new window in the
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centre-top of the terminal screen. The program does not yet handle
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terminal resizing events.
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size. The newtxwin() function automatically places a new window in the
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centre-top of the terminal screen.
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*/
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#define MIN_LINES 24 // Minimum number of lines in terminal
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#define MIN_COLS 80 // Minimum number of columns in terminal
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#define WIN_LINES MIN_LINES // Number of lines in main window
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#define WIN_COLS MIN_COLS // Number of columns in main window
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#define WIN_LINES MIN_LINES // Number of lines used in main window
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#define WIN_COLS MIN_COLS // Number of columns used in main window
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#define WCENTER -1 // Centre the new window
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// Check if resizing events are supported
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#ifdef KEY_RESIZE
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# define HANDLE_RESIZE_EVENTS 1
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#else
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# undef HANDLE_RESIZE_EVENTS
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#endif
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// Visibility of the cursor in Curses (for curs_set())
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typedef enum curs_type {
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CURS_INVISIBLE = 0,
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@ -77,8 +84,6 @@ typedef enum curs_type {
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#define KEY_CTRL(x) ((x) - 0100) // ASCII control character
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#define KEY_ILLEGAL 077777 // No key should ever return this!
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// Keycodes for inserting the default value in input routines
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#define KEY_DEFAULTVAL1 '='
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#define KEY_DEFAULTVAL2 ';'
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@ -91,17 +96,6 @@ typedef enum curs_type {
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# define KEY_CRIGHT 01052 // CTRL + Right Arrow
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#endif
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// Keycodes only defined by NCurses
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#ifndef KEY_RESIZE
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# define KEY_RESIZE KEY_ILLEGAL
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#endif
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#ifndef KEY_EVENT
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# define KEY_EVENT KEY_ILLEGAL
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#endif
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#ifndef KEY_MOUSE
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# define KEY_MOUSE KEY_ILLEGAL
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#endif
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// Timeout value (in ms) for Meta-X-style keyboard input
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#ifdef NCURSES_VERSION
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# define META_TIMEOUT ESCDELAY
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