[449af72] | 1 | #include "owl.h" |
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| 2 | |
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| 3 | #include <assert.h> |
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| 4 | |
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| 5 | struct _owl_window { /*noproto*/ |
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[053f751] | 6 | GObject object; |
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[449af72] | 7 | /* hierarchy information */ |
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| 8 | owl_window *parent; |
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| 9 | owl_window *child; |
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| 10 | owl_window *next, *prev; |
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| 11 | /* flags */ |
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| 12 | int dirty : 1; |
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| 13 | int dirty_subtree : 1; |
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[50031f0] | 14 | int shown : 1; |
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[449af72] | 15 | int is_screen : 1; |
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| 16 | /* window information */ |
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| 17 | WINDOW *win; |
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| 18 | PANEL *pan; |
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| 19 | int nlines, ncols; |
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| 20 | int begin_y, begin_x; |
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| 21 | }; |
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| 22 | |
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[7a6e6c7] | 23 | enum { |
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| 24 | REDRAW, |
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| 25 | RESIZED, |
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| 26 | LAST_SIGNAL |
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| 27 | }; |
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| 28 | |
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| 29 | static guint window_signals[LAST_SIGNAL] = { 0 }; |
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| 30 | |
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[053f751] | 31 | static void owl_window_dispose(GObject *gobject); |
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| 32 | static void owl_window_finalize(GObject *gobject); |
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| 33 | |
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[449af72] | 34 | static owl_window *_owl_window_new(owl_window *parent, int nlines, int ncols, int begin_y, int begin_x); |
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| 35 | |
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| 36 | static void _owl_window_link(owl_window *w, owl_window *parent); |
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| 37 | |
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| 38 | static void _owl_window_create_curses(owl_window *w); |
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| 39 | static void _owl_window_destroy_curses(owl_window *w); |
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| 40 | |
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[46e2e56] | 41 | static void _owl_window_realize(owl_window *w); |
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| 42 | static void _owl_window_unrealize(owl_window *w); |
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[449af72] | 43 | |
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[84a4aca] | 44 | static owl_window *cursor_owner; |
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[f70a7a3] | 45 | static owl_window *default_cursor; |
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[84a4aca] | 46 | |
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[6ad7bed] | 47 | /* clang gets upset about the glib argument chopping hack because it manages to |
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| 48 | * inline owl_window_children_foreach. user_data should be a pointer to a |
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| 49 | * FuncOneArg. */ |
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| 50 | typedef void (*FuncOneArg)(void *); |
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| 51 | static void first_arg_only(gpointer data, gpointer user_data) |
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| 52 | { |
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| 53 | FuncOneArg *func = user_data; |
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| 54 | (*func)(data); |
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| 55 | } |
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| 56 | |
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[053f751] | 57 | G_DEFINE_TYPE (OwlWindow, owl_window, G_TYPE_OBJECT) |
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| 58 | |
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| 59 | static void owl_window_class_init (OwlWindowClass *klass) |
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| 60 | { |
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[7a6e6c7] | 61 | GObjectClass *gobject_class = G_OBJECT_CLASS (klass); |
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| 62 | |
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| 63 | /* Set up the vtabl */ |
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| 64 | gobject_class->dispose = owl_window_dispose; |
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| 65 | gobject_class->finalize = owl_window_finalize; |
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| 66 | |
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[f91767d] | 67 | klass->redraw = NULL; |
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[7a6e6c7] | 68 | klass->resized = NULL; |
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| 69 | |
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| 70 | /* Create the signals, remember IDs */ |
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| 71 | window_signals[REDRAW] = |
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| 72 | g_signal_new("redraw", |
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| 73 | G_TYPE_FROM_CLASS(gobject_class), |
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| 74 | G_SIGNAL_RUN_CLEANUP, |
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| 75 | G_STRUCT_OFFSET(OwlWindowClass, redraw), |
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| 76 | NULL, NULL, |
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| 77 | g_cclosure_marshal_VOID__POINTER, |
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| 78 | G_TYPE_NONE, |
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| 79 | 1, |
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| 80 | G_TYPE_POINTER, NULL); |
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| 81 | |
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| 82 | /* TODO: maybe type should be VOID__INT_INT_INT_INT; will need to generate a |
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| 83 | * marshaller */ |
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| 84 | window_signals[RESIZED] = |
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| 85 | g_signal_new("resized", |
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| 86 | G_TYPE_FROM_CLASS(gobject_class), |
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| 87 | G_SIGNAL_RUN_FIRST, |
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| 88 | G_STRUCT_OFFSET(OwlWindowClass, resized), |
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| 89 | NULL, NULL, |
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| 90 | g_cclosure_marshal_VOID__VOID, |
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| 91 | G_TYPE_NONE, |
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| 92 | 0, |
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| 93 | NULL); |
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[053f751] | 94 | } |
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| 95 | |
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| 96 | static void owl_window_dispose (GObject *object) |
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| 97 | { |
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| 98 | owl_window *w = OWL_WINDOW (object); |
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| 99 | |
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| 100 | /* Unmap the window */ |
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| 101 | owl_window_hide (w); |
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| 102 | |
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| 103 | /* Unlink and unref all children */ |
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| 104 | while (w->child) { |
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| 105 | owl_window *child = w->child; |
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| 106 | owl_window_unlink (child); |
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| 107 | } |
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| 108 | |
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| 109 | /* Remove from hierarchy */ |
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| 110 | owl_window_unlink (w); |
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| 111 | |
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| 112 | G_OBJECT_CLASS (owl_window_parent_class)->dispose (object); |
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| 113 | } |
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| 114 | |
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| 115 | static void owl_window_finalize (GObject *object) |
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| 116 | { |
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| 117 | owl_window *w = OWL_WINDOW(object); |
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| 118 | |
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| 119 | if (w->pan) { |
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| 120 | del_panel(w->pan); |
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| 121 | w->pan = NULL; |
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| 122 | } |
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| 123 | |
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| 124 | G_OBJECT_CLASS (owl_window_parent_class)->finalize (object); |
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| 125 | } |
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| 126 | |
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| 127 | static void owl_window_init (owl_window *w) |
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| 128 | { |
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| 129 | } |
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| 130 | |
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[449af72] | 131 | /** singletons **/ |
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| 132 | |
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| 133 | static WINDOW *_dummy_window(void) |
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| 134 | { |
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| 135 | static WINDOW *dummy = NULL; |
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| 136 | if (!dummy) { |
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| 137 | dummy = newwin(1, 1, 0, 0); |
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| 138 | } |
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| 139 | return dummy; |
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| 140 | } |
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| 141 | |
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| 142 | owl_window *owl_window_get_screen(void) |
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| 143 | { |
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| 144 | static owl_window *screen = NULL; |
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| 145 | if (!screen) { |
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[50031f0] | 146 | /* The screen is magical. It's 'shown', but the only mean of it going |
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[449af72] | 147 | * invisible is if we're tore down curses (i.e. screen resize) */ |
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| 148 | screen = _owl_window_new(NULL, g.lines, g.cols, 0, 0); |
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| 149 | screen->is_screen = 1; |
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[402ed3d3] | 150 | owl_window_show(screen); |
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[449af72] | 151 | } |
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| 152 | return screen; |
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| 153 | } |
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| 154 | |
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| 155 | /** Creation and Destruction **/ |
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| 156 | |
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[d106110] | 157 | owl_window *owl_window_new(owl_window *parent) |
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[449af72] | 158 | { |
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| 159 | if (!parent) |
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| 160 | parent = owl_window_get_screen(); |
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[d106110] | 161 | return _owl_window_new(parent, 0, 0, 0, 0); |
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[449af72] | 162 | } |
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| 163 | |
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| 164 | static owl_window *_owl_window_new(owl_window *parent, int nlines, int ncols, int begin_y, int begin_x) |
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| 165 | { |
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| 166 | owl_window *w; |
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| 167 | |
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[053f751] | 168 | w = g_object_new (OWL_TYPE_WINDOW, NULL); |
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| 169 | if (w == NULL) g_error("Failed to create owl_window instance"); |
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[449af72] | 170 | |
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| 171 | w->nlines = nlines; |
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| 172 | w->ncols = ncols; |
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| 173 | w->begin_y = begin_y; |
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| 174 | w->begin_x = begin_x; |
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| 175 | |
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| 176 | _owl_window_link(w, parent); |
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| 177 | if (parent && parent->is_screen) { |
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| 178 | w->pan = new_panel(_dummy_window()); |
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| 179 | set_panel_userptr(w->pan, w); |
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| 180 | } |
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| 181 | |
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| 182 | return w; |
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| 183 | } |
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| 184 | |
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| 185 | /** Hierarchy **/ |
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| 186 | |
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[3da1f4f] | 187 | void owl_window_unlink(owl_window *w) |
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[449af72] | 188 | { |
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[ec4ccfc] | 189 | /* make sure the window is unmapped first */ |
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[46e2e56] | 190 | _owl_window_unrealize(w); |
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[449af72] | 191 | /* unlink parent/child information */ |
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| 192 | if (w->parent) { |
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| 193 | if (w->prev) |
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| 194 | w->prev->next = w->next; |
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| 195 | if (w->next) |
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| 196 | w->next->prev = w->prev; |
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| 197 | if (w->parent->child == w) |
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| 198 | w->parent->child = w->next; |
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[933aa7d] | 199 | w->parent = NULL; |
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[053f751] | 200 | g_object_unref (w); |
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[449af72] | 201 | } |
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| 202 | } |
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| 203 | |
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| 204 | static void _owl_window_link(owl_window *w, owl_window *parent) |
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| 205 | { |
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| 206 | if (w->parent == parent) |
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| 207 | return; |
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| 208 | |
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[933aa7d] | 209 | owl_window_unlink(w); |
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[449af72] | 210 | if (parent) { |
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[933aa7d] | 211 | w->parent = parent; |
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[449af72] | 212 | w->next = parent->child; |
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[5ca3fb7] | 213 | if (w->next) |
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| 214 | w->next->prev = w; |
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[449af72] | 215 | parent->child = w; |
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[053f751] | 216 | g_object_ref (w); |
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[449af72] | 217 | } |
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| 218 | } |
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| 219 | |
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| 220 | /* mimic g_list_foreach for consistency */ |
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| 221 | void owl_window_children_foreach(owl_window *parent, GFunc func, gpointer user_data) |
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| 222 | { |
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| 223 | owl_window *w; |
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| 224 | for (w = parent->child; |
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| 225 | w != NULL; |
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| 226 | w = w->next) { |
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| 227 | func(w, user_data); |
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| 228 | } |
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| 229 | } |
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| 230 | |
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[1aa4cc4] | 231 | owl_window *owl_window_parent(owl_window *w) |
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[b6cb985] | 232 | { |
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| 233 | return w->parent; |
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| 234 | } |
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| 235 | |
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[1aa4cc4] | 236 | owl_window *owl_window_first_child(owl_window *w) |
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| 237 | { |
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| 238 | return w->child; |
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| 239 | } |
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| 240 | |
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| 241 | owl_window *owl_window_next_sibling(owl_window *w) |
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| 242 | { |
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| 243 | return w->next; |
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| 244 | } |
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| 245 | |
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| 246 | owl_window *owl_window_previous_sibling(owl_window *w) |
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| 247 | { |
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| 248 | return w->prev; |
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| 249 | } |
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| 250 | |
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[449af72] | 251 | /** Internal window management **/ |
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| 252 | |
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| 253 | static void _owl_window_create_curses(owl_window *w) |
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| 254 | { |
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| 255 | if (w->is_screen) { |
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| 256 | resizeterm(w->nlines, w->ncols); |
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[2dfccc7] | 257 | w->win = stdscr; |
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[449af72] | 258 | } else { |
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[aab7af1] | 259 | /* Explicitly disallow realizing an unlinked non-root */ |
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[fe49685] | 260 | if (w->parent == NULL || w->parent->win == NULL) |
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| 261 | return; |
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[aab7af1] | 262 | if (w->pan) { |
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| 263 | w->win = newwin(w->nlines, w->ncols, w->begin_y, w->begin_x); |
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| 264 | replace_panel(w->pan, w->win); |
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| 265 | } else { |
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| 266 | w->win = derwin(w->parent->win, w->nlines, w->ncols, w->begin_y, w->begin_x); |
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| 267 | } |
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[449af72] | 268 | } |
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| 269 | } |
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| 270 | |
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| 271 | static void _owl_window_destroy_curses(owl_window *w) |
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| 272 | { |
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| 273 | if (w->is_screen) { |
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| 274 | /* don't deallocate the dummy */ |
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| 275 | w->win = NULL; |
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| 276 | } else { |
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| 277 | if (w->pan) { |
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| 278 | /* panels assume their windows always exist, so we put in a fake one */ |
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| 279 | replace_panel(w->pan, _dummy_window()); |
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| 280 | } |
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| 281 | if (w->win) { |
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| 282 | /* and destroy our own window */ |
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| 283 | delwin(w->win); |
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| 284 | w->win = NULL; |
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| 285 | } |
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| 286 | } |
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| 287 | } |
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| 288 | |
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[402ed3d3] | 289 | void owl_window_show(owl_window *w) |
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[449af72] | 290 | { |
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[50031f0] | 291 | w->shown = 1; |
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[46e2e56] | 292 | _owl_window_realize(w); |
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[449af72] | 293 | if (w->pan) |
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| 294 | show_panel(w->pan); |
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[402ed3d3] | 295 | } |
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| 296 | |
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| 297 | void owl_window_show_all(owl_window *w) |
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| 298 | { |
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[6ad7bed] | 299 | FuncOneArg ptr = (FuncOneArg)owl_window_show; |
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[b31f1c9] | 300 | owl_window_show(w); |
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[6ad7bed] | 301 | owl_window_children_foreach(w, first_arg_only, &ptr); |
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[449af72] | 302 | } |
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| 303 | |
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[50031f0] | 304 | void owl_window_hide(owl_window *w) |
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[449af72] | 305 | { |
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| 306 | /* you can't unmap the screen */ |
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| 307 | if (w->is_screen) |
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| 308 | return; |
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[50031f0] | 309 | w->shown = 0; |
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[449af72] | 310 | if (w->pan) |
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| 311 | hide_panel(w->pan); |
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[46e2e56] | 312 | _owl_window_unrealize(w); |
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[449af72] | 313 | } |
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| 314 | |
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[38e2250] | 315 | bool owl_window_is_shown(owl_window *w) |
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[449af72] | 316 | { |
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[50031f0] | 317 | return w->shown; |
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[449af72] | 318 | } |
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| 319 | |
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[38e2250] | 320 | bool owl_window_is_realized(owl_window *w) |
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[449af72] | 321 | { |
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| 322 | return w->win != NULL; |
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| 323 | } |
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| 324 | |
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[38e2250] | 325 | bool owl_window_is_toplevel(owl_window *w) |
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[449af72] | 326 | { |
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| 327 | return w->pan != NULL; |
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| 328 | } |
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| 329 | |
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[38e2250] | 330 | bool owl_window_is_subwin(owl_window *w) |
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[9379760] | 331 | { |
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| 332 | return w->pan == NULL && !w->is_screen; |
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| 333 | } |
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| 334 | |
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[5f0bcde] | 335 | static bool _owl_window_should_realize(owl_window *w) |
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| 336 | { |
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| 337 | return owl_window_is_shown(w) && |
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| 338 | (!w->parent || owl_window_is_realized(w->parent)); |
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| 339 | } |
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| 340 | |
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[4811422] | 341 | static void _owl_window_realize_later(owl_window *w) |
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| 342 | { |
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| 343 | if (owl_window_is_realized(w) || !_owl_window_should_realize(w)) |
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| 344 | return; |
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| 345 | owl_window_dirty(w); |
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| 346 | } |
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| 347 | |
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[46e2e56] | 348 | static void _owl_window_realize(owl_window *w) |
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[449af72] | 349 | { |
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[b31f1c9] | 350 | FuncOneArg ptr = (FuncOneArg)_owl_window_realize_later; |
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[449af72] | 351 | /* check if we can create a window */ |
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[5f0bcde] | 352 | if (owl_window_is_realized(w) || !_owl_window_should_realize(w)) |
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[449af72] | 353 | return; |
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[f041595] | 354 | if (w->nlines <= 0 || w->ncols <= 0) |
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| 355 | return; |
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[449af72] | 356 | _owl_window_create_curses(w); |
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[fe49685] | 357 | if (w->win == NULL) |
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| 358 | return; |
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[449af72] | 359 | /* schedule a repaint */ |
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| 360 | owl_window_dirty(w); |
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[fe49685] | 361 | /* map the children */ |
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[6ad7bed] | 362 | owl_window_children_foreach(w, first_arg_only, &ptr); |
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[449af72] | 363 | } |
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| 364 | |
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[46e2e56] | 365 | static void _owl_window_unrealize(owl_window *w) |
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[449af72] | 366 | { |
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[b31f1c9] | 367 | FuncOneArg ptr = (FuncOneArg)_owl_window_unrealize; |
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[449af72] | 368 | if (w->win == NULL) |
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| 369 | return; |
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| 370 | /* unmap all the children */ |
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[6ad7bed] | 371 | owl_window_children_foreach(w, first_arg_only, &ptr); |
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[449af72] | 372 | _owl_window_destroy_curses(w); |
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[cb5a9f3] | 373 | w->dirty = w->dirty_subtree = 0; |
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[449af72] | 374 | /* subwins leave a mess in the parent; dirty it */ |
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| 375 | if (w->parent) |
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| 376 | owl_window_dirty(w->parent); |
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| 377 | } |
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| 378 | |
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| 379 | /** Painting and book-keeping **/ |
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| 380 | |
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[84a4aca] | 381 | void owl_window_set_cursor(owl_window *w) |
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| 382 | { |
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[cc36f27] | 383 | if (cursor_owner) |
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| 384 | g_object_remove_weak_pointer(G_OBJECT(cursor_owner), (gpointer*) &cursor_owner); |
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[84a4aca] | 385 | cursor_owner = w; |
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[f70a7a3] | 386 | if (w) |
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| 387 | g_object_add_weak_pointer(G_OBJECT(w), (gpointer*) &cursor_owner); |
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[5cc7e5e] | 388 | owl_window_dirty(owl_window_get_screen()); |
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[84a4aca] | 389 | } |
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| 390 | |
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[f70a7a3] | 391 | void owl_window_set_default_cursor(owl_window *w) |
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| 392 | { |
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| 393 | if (default_cursor) |
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| 394 | g_object_remove_weak_pointer(G_OBJECT(default_cursor), (gpointer*) &default_cursor); |
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| 395 | default_cursor = w; |
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| 396 | if (w) |
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| 397 | g_object_add_weak_pointer(G_OBJECT(w), (gpointer*) &default_cursor); |
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[5cc7e5e] | 398 | owl_window_dirty(owl_window_get_screen()); |
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[f70a7a3] | 399 | } |
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| 400 | |
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| 401 | static owl_window *_get_cursor(void) |
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| 402 | { |
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| 403 | if (cursor_owner && owl_window_is_realized(cursor_owner)) |
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| 404 | return cursor_owner; |
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| 405 | if (default_cursor && owl_window_is_realized(default_cursor)) |
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| 406 | return default_cursor; |
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| 407 | return owl_window_get_screen(); |
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| 408 | } |
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| 409 | |
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[449af72] | 410 | void owl_window_dirty(owl_window *w) |
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| 411 | { |
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[4811422] | 412 | if (!_owl_window_should_realize(w)) |
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[7cbef8c] | 413 | return; |
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[449af72] | 414 | if (!w->dirty) { |
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| 415 | w->dirty = 1; |
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| 416 | while (w && !w->dirty_subtree) { |
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| 417 | w->dirty_subtree = 1; |
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| 418 | w = w->parent; |
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| 419 | } |
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| 420 | } |
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| 421 | } |
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| 422 | |
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| 423 | void owl_window_dirty_children(owl_window *w) |
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| 424 | { |
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[6ad7bed] | 425 | FuncOneArg ptr = (FuncOneArg)owl_window_dirty; |
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| 426 | owl_window_children_foreach(w, first_arg_only, &ptr); |
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[449af72] | 427 | } |
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| 428 | |
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| 429 | static void _owl_window_redraw(owl_window *w) |
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| 430 | { |
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| 431 | if (!w->dirty) return; |
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[4811422] | 432 | _owl_window_realize(w); |
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[1f4ea57] | 433 | if (w->win && !w->is_screen) { |
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[9379760] | 434 | if (owl_window_is_subwin(w)) { |
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[f91767d] | 435 | /* If a subwin, we might have gotten random touched lines from wsyncup or |
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| 436 | * past drawing. That information is useless, so we discard it all */ |
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| 437 | untouchwin(w->win); |
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| 438 | } |
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[7a6e6c7] | 439 | g_signal_emit(w, window_signals[REDRAW], 0, w->win); |
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[f91767d] | 440 | wsyncup(w->win); |
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[449af72] | 441 | } |
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| 442 | w->dirty = 0; |
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| 443 | } |
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| 444 | |
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| 445 | static void _owl_window_redraw_subtree(owl_window *w) |
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| 446 | { |
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[b31f1c9] | 447 | FuncOneArg ptr = (FuncOneArg)_owl_window_redraw_subtree; |
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[449af72] | 448 | if (!w->dirty_subtree) |
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| 449 | return; |
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| 450 | _owl_window_redraw(w); |
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[6ad7bed] | 451 | owl_window_children_foreach(w, first_arg_only, &ptr); |
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[438409f] | 452 | w->dirty_subtree = 0; |
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[449af72] | 453 | } |
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| 454 | |
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| 455 | /* |
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| 456 | Redraw all the windows with scheduled redraws. |
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| 457 | NOTE: This function shouldn't be called outside the event loop |
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| 458 | */ |
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| 459 | void owl_window_redraw_scheduled(void) |
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| 460 | { |
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[f70a7a3] | 461 | owl_window *cursor; |
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[5cc7e5e] | 462 | owl_window *screen = owl_window_get_screen(); |
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[f70a7a3] | 463 | |
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[5cc7e5e] | 464 | if (!screen->dirty_subtree) |
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| 465 | return; |
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| 466 | _owl_window_redraw_subtree(screen); |
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[a57f87a] | 467 | update_panels(); |
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[f70a7a3] | 468 | cursor = _get_cursor(); |
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| 469 | if (cursor && cursor->win) { |
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[f91767d] | 470 | /* untouch it to avoid drawing; window should be clean now, but we must |
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| 471 | * clean up in case there was junk left over on a subwin (cleaning up after |
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| 472 | * subwin drawing isn't sufficient because a wsyncup messes up subwin |
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| 473 | * ancestors */ |
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[f70a7a3] | 474 | untouchwin(cursor->win); |
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| 475 | wnoutrefresh(cursor->win); |
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[f91767d] | 476 | } |
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[5cc7e5e] | 477 | doupdate(); |
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[7a6e6c7] | 478 | } |
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| 479 | |
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[449af72] | 480 | /** Window position **/ |
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| 481 | |
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| 482 | void owl_window_get_position(owl_window *w, int *nlines, int *ncols, int *begin_y, int *begin_x) |
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| 483 | { |
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| 484 | if (nlines) *nlines = w->nlines; |
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| 485 | if (ncols) *ncols = w->ncols; |
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| 486 | if (begin_y) *begin_y = w->begin_y; |
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| 487 | if (begin_x) *begin_x = w->begin_x; |
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| 488 | } |
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| 489 | |
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[b0cbde4] | 490 | void owl_window_move(owl_window *w, int begin_y, int begin_x) |
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| 491 | { |
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[b9d04ad] | 492 | /* It is possible to move a window efficiently with move_panel and mvderwin, |
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| 493 | * but begy and begx are then wrong. Currently, this only effects the |
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| 494 | * wnoutrefresh to move cursor. TODO: fix that and reinstate that |
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| 495 | * optimization if it's worth the trouble */ |
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[d15ea5f] | 496 | owl_window_set_position(w, w->nlines, w->ncols, begin_y, begin_x); |
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[b0cbde4] | 497 | } |
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| 498 | |
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[449af72] | 499 | void owl_window_set_position(owl_window *w, int nlines, int ncols, int begin_y, int begin_x) |
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| 500 | { |
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[840032d] | 501 | int resized; |
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[449af72] | 502 | |
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[d15ea5f] | 503 | if (w->nlines == nlines && w->ncols == ncols |
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| 504 | && w->begin_y == begin_y && w->begin_x == begin_x) { |
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[449af72] | 505 | return; |
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| 506 | } |
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[840032d] | 507 | resized = w->nlines != nlines || w->ncols != ncols; |
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[449af72] | 508 | |
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[d15ea5f] | 509 | _owl_window_unrealize(w); |
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[678a505c] | 510 | w->begin_y = begin_y; |
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| 511 | w->begin_x = begin_x; |
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| 512 | w->nlines = nlines; |
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| 513 | w->ncols = ncols; |
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[840032d] | 514 | if (resized) |
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| 515 | g_signal_emit(w, window_signals[RESIZED], 0); |
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[50031f0] | 516 | if (w->shown) { |
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[d15ea5f] | 517 | /* ncurses is screwy: give up and recreate windows at the right place */ |
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[4811422] | 518 | _owl_window_realize_later(w); |
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[449af72] | 519 | } |
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| 520 | } |
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| 521 | |
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| 522 | void owl_window_resize(owl_window *w, int nlines, int ncols) |
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| 523 | { |
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| 524 | owl_window_set_position(w, nlines, ncols, w->begin_y, w->begin_x); |
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| 525 | } |
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[4cc49bc] | 526 | |
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| 527 | /** Redrawing main loop hooks **/ |
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| 528 | |
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| 529 | static bool _owl_window_should_redraw(void) { |
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| 530 | return g.resizepending || owl_window_get_screen()->dirty_subtree; |
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| 531 | } |
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| 532 | |
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| 533 | static gboolean _owl_window_redraw_prepare(GSource *source, int *timeout) { |
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| 534 | *timeout = -1; |
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| 535 | return _owl_window_should_redraw(); |
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| 536 | } |
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| 537 | |
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| 538 | static gboolean _owl_window_redraw_check(GSource *source) { |
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| 539 | return _owl_window_should_redraw(); |
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| 540 | } |
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| 541 | |
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| 542 | static gboolean _owl_window_redraw_dispatch(GSource *source, GSourceFunc callback, gpointer user_data) { |
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| 543 | owl_colorpair_mgr *cpmgr; |
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| 544 | |
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| 545 | /* if a resize has been scheduled, deal with it */ |
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| 546 | owl_global_check_resize(&g); |
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| 547 | /* update the terminal if we need to */ |
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| 548 | owl_window_redraw_scheduled(); |
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[f97c1a6] | 549 | /* On colorpair shortage, reset and redraw /everything/. NOTE: if we |
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| 550 | * still overflow, this be useless work. With 8-colors, we get 64 |
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| 551 | * pairs. With 256-colors, we get 32768 pairs with ext-colors |
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| 552 | * support and 256 otherwise. */ |
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[4cc49bc] | 553 | cpmgr = owl_global_get_colorpair_mgr(&g); |
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| 554 | if (cpmgr->overflow) { |
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[f97c1a6] | 555 | owl_function_debugmsg("colorpairs: used all %d pairs; reset pairs and redraw.", |
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| 556 | owl_util_get_colorpairs()); |
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[4cc49bc] | 557 | owl_fmtext_reset_colorpairs(cpmgr); |
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| 558 | owl_function_full_redisplay(); |
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| 559 | owl_window_redraw_scheduled(); |
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| 560 | } |
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| 561 | return TRUE; |
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| 562 | } |
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| 563 | |
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| 564 | static GSourceFuncs redraw_funcs = { |
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| 565 | _owl_window_redraw_prepare, |
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| 566 | _owl_window_redraw_check, |
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| 567 | _owl_window_redraw_dispatch, |
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| 568 | NULL |
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| 569 | }; |
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| 570 | |
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| 571 | GSource *owl_window_redraw_source_new(void) { |
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| 572 | GSource *source; |
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| 573 | source = g_source_new(&redraw_funcs, sizeof(GSource)); |
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| 574 | /* TODO: priority?? */ |
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| 575 | return source; |
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| 576 | } |
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