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authorThe Android Open Source Project <initial-contribution@android.com>2009-02-11 00:43:56 +0100
committerThe Android Open Source Project <initial-contribution@android.com>2009-02-11 00:43:56 +0100
commit8b7334b3c2f891f516722851575fec43bd28b4cf (patch)
tree726d3efa74bb9e772b171db8831ca99c912f1940 /ui.c
parentauto import from //branches/cupcake/...@125939 (diff)
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Diffstat (limited to 'ui.c')
-rw-r--r--ui.c140
1 files changed, 131 insertions, 9 deletions
diff --git a/ui.c b/ui.c
index b9869aed5..5d06561c5 100644
--- a/ui.c
+++ b/ui.c
@@ -89,6 +89,10 @@ static int text_cols = 0, text_rows = 0;
static int text_col = 0, text_row = 0, text_top = 0;
static int show_text = 0;
+static char menu[MAX_ROWS][MAX_COLS];
+static int show_menu = 0;
+static int menu_top = 0, menu_items = 0, menu_sel = 0;
+
// Key event input queue
static pthread_mutex_t key_queue_mutex = PTHREAD_MUTEX_INITIALIZER;
static pthread_cond_t key_queue_cond = PTHREAD_COND_INITIALIZER;
@@ -154,6 +158,12 @@ static void draw_progress_locked()
}
}
+static void draw_text_line(int row, const char* t) {
+ if (t[0] != '\0') {
+ gr_text(0, (row+1)*CHAR_HEIGHT-1, t);
+ }
+}
+
// Redraw everything on the screen. Does not flip pages.
// Should only be called with gUpdateMutex locked.
static void draw_screen_locked(void)
@@ -163,13 +173,32 @@ static void draw_screen_locked(void)
if (show_text) {
gr_color(0, 0, 0, 160);
- gr_fill(0, 0, gr_fb_width(), text_rows * CHAR_HEIGHT);
+ gr_fill(0, 0, gr_fb_width(), gr_fb_height());
+
+ int i = 0;
+ if (show_menu) {
+ gr_color(64, 96, 255, 255);
+ gr_fill(0, (menu_top+menu_sel) * CHAR_HEIGHT,
+ gr_fb_width(), (menu_top+menu_sel+1)*CHAR_HEIGHT+1);
+
+ for (; i < menu_top + menu_items; ++i) {
+ if (i == menu_top + menu_sel) {
+ gr_color(255, 255, 255, 255);
+ draw_text_line(i, menu[i]);
+ gr_color(64, 96, 255, 255);
+ } else {
+ draw_text_line(i, menu[i]);
+ }
+ }
+ gr_fill(0, i*CHAR_HEIGHT+CHAR_HEIGHT/2-1,
+ gr_fb_width(), i*CHAR_HEIGHT+CHAR_HEIGHT/2+1);
+ ++i;
+ }
gr_color(255, 255, 0, 255);
- int i;
- for (i = 0; i < text_rows; ++i) {
- const char* line = text[(i + text_top) % text_rows];
- if (line[0] != '\0') gr_text(0, (i + 1) * CHAR_HEIGHT - 1, line);
+
+ for (; i < text_rows; ++i) {
+ draw_text_line(i, text[(i+text_top) % text_rows]);
}
}
}
@@ -228,13 +257,50 @@ static void *progress_thread(void *cookie)
// Reads input events, handles special hot keys, and adds to the key queue.
static void *input_thread(void *cookie)
{
+ int rel_sum = 0;
+ int fake_key = 0;
for (;;) {
// wait for the next key event
struct input_event ev;
- do { ev_get(&ev, 0); } while (ev.type != EV_KEY || ev.code > KEY_MAX);
+ do {
+ ev_get(&ev, 0);
+
+ if (ev.type == EV_SYN) {
+ continue;
+ } else if (ev.type == EV_REL) {
+ if (ev.code == REL_Y) {
+ // accumulate the up or down motion reported by
+ // the trackball. When it exceeds a threshold
+ // (positive or negative), fake an up/down
+ // key event.
+ rel_sum += ev.value;
+ if (rel_sum > 3) {
+ fake_key = 1;
+ ev.type = EV_KEY;
+ ev.code = KEY_DOWN;
+ ev.value = 1;
+ rel_sum = 0;
+ } else if (rel_sum < -3) {
+ fake_key = 1;
+ ev.type = EV_KEY;
+ ev.code = KEY_UP;
+ ev.value = 1;
+ rel_sum = 0;
+ }
+ }
+ } else {
+ rel_sum = 0;
+ }
+ } while (ev.type != EV_KEY || ev.code > KEY_MAX);
pthread_mutex_lock(&key_queue_mutex);
- key_pressed[ev.code] = ev.value;
+ if (!fake_key) {
+ // our "fake" keys only report a key-down event (no
+ // key-up), so don't record them in the key_pressed
+ // table.
+ key_pressed[ev.code] = ev.value;
+ }
+ fake_key = 0;
const int queue_max = sizeof(key_queue) / sizeof(key_queue[0]);
if (ev.value > 0 && key_queue_len < queue_max) {
key_queue[key_queue_len++] = ev.code;
@@ -242,9 +308,10 @@ static void *input_thread(void *cookie)
}
pthread_mutex_unlock(&key_queue_mutex);
- // Alt+L: toggle log display
+ // Alt+L or Home+End: toggle log display
int alt = key_pressed[KEY_LEFTALT] || key_pressed[KEY_RIGHTALT];
- if (alt && ev.code == KEY_L && ev.value > 0) {
+ if ((alt && ev.code == KEY_L && ev.value > 0) ||
+ (key_pressed[KEY_HOME] && ev.code == KEY_END && ev.value > 0)) {
pthread_mutex_lock(&gUpdateMutex);
show_text = !show_text;
update_screen_locked();
@@ -269,6 +336,7 @@ void ui_init(void)
text_col = text_row = 0;
text_rows = gr_fb_height() / CHAR_HEIGHT;
if (text_rows > MAX_ROWS) text_rows = MAX_ROWS;
+ text_top = 1;
text_cols = gr_fb_width() / CHAR_WIDTH;
if (text_cols > MAX_COLS - 1) text_cols = MAX_COLS - 1;
@@ -392,6 +460,54 @@ void ui_print(const char *fmt, ...)
pthread_mutex_unlock(&gUpdateMutex);
}
+void ui_start_menu(char** headers, char** items) {
+ int i;
+ pthread_mutex_lock(&gUpdateMutex);
+ if (text_rows > 0 && text_cols > 0) {
+ for (i = 0; i < text_rows; ++i) {
+ if (headers[i] == NULL) break;
+ strncpy(menu[i], headers[i], text_cols-1);
+ menu[i][text_cols-1] = '\0';
+ }
+ menu_top = i;
+ for (; i < text_rows; ++i) {
+ if (items[i-menu_top] == NULL) break;
+ strncpy(menu[i], items[i-menu_top], text_cols-1);
+ menu[i][text_cols-1] = '\0';
+ }
+ menu_items = i - menu_top;
+ show_menu = 1;
+ menu_sel = 0;
+ update_screen_locked();
+ }
+ pthread_mutex_unlock(&gUpdateMutex);
+}
+
+int ui_menu_select(int sel) {
+ int old_sel;
+ pthread_mutex_lock(&gUpdateMutex);
+ if (show_menu > 0) {
+ old_sel = menu_sel;
+ menu_sel = sel;
+ if (menu_sel < 0) menu_sel = 0;
+ if (menu_sel >= menu_items) menu_sel = menu_items-1;
+ sel = menu_sel;
+ if (menu_sel != old_sel) update_screen_locked();
+ }
+ pthread_mutex_unlock(&gUpdateMutex);
+ return sel;
+}
+
+void ui_end_menu() {
+ int i;
+ pthread_mutex_lock(&gUpdateMutex);
+ if (show_menu > 0 && text_rows > 0 && text_cols > 0) {
+ show_menu = 0;
+ update_screen_locked();
+ }
+ pthread_mutex_unlock(&gUpdateMutex);
+}
+
int ui_text_visible()
{
pthread_mutex_lock(&gUpdateMutex);
@@ -418,3 +534,9 @@ int ui_key_pressed(int key)
// This is a volatile static array, don't bother locking
return key_pressed[key];
}
+
+void ui_clear_key_queue() {
+ pthread_mutex_lock(&key_queue_mutex);
+ key_queue_len = 0;
+ pthread_mutex_unlock(&key_queue_mutex);
+}