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Allow scrolling of labels by \n

master
Matthew Stratford 2018-09-15 15:52:59 +01:00
parent 705167983d
commit 268ef625f2
1 changed files with 25 additions and 3 deletions
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28
lib/dialogs.py
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@ -49,11 +49,23 @@ def prompt_boolean(text, title="TiLDA", true_text="Yes", false_text="No", font=F
false_text = "B: " + false_text
ugfx.set_default_font(font)
label = ugfx.Label(5, 30, width - 10, height - 80, text = text, parent=window)
label = ugfx.Label(5, 30, width - 10, height - 80, text = text, parent=window, justification=4)
ugfx.set_default_font(FONT_MEDIUM_BOLD)
button_yes = ugfx.Button(5, height - 40, width // 2 - 10 if false_text else width - 15, 30 , true_text, parent=window)
button_no = ugfx.Button(width // 2, height - 40, width // 2 - 10, 30 , false_text, parent=window) if false_text else None
# Find newlines in label text to scroll.
def find_all(a_str, sub):
start = 0
while True:
start = a_str.find(sub, start)
if start == -1: return
yield start + 1 # Trap: \n becomes a single character, not 2.
start += len(sub) # use start += 1 to find overlapping matches
new_line_pos = [0] + list(find_all(text, '\n'))
text_scroll_offset = 0
try:
#button_yes.attach_input(ugfx.BTN_A,0) # todo: re-enable once working
#if button_no: button_no.attach_input(ugfx.BTN_B,0)
@ -64,6 +76,16 @@ def prompt_boolean(text, title="TiLDA", true_text="Yes", false_text="No", font=F
sleep.wfi()
if buttons.is_triggered(buttons.Buttons.BTN_A): return True
if buttons.is_triggered(buttons.Buttons.BTN_B): return False
# Allow scrolling by new lines.
if buttons.is_triggered(buttons.Buttons.JOY_Down):
if text_scroll_offset < len(new_line_pos)-1:
text_scroll_offset = text_scroll_offset + 1
label.text(text[new_line_pos[text_scroll_offset]:])
if buttons.is_triggered(buttons.Buttons.JOY_Up):
if (text_scroll_offset > 0):
text_scroll_offset=text_scroll_offset - 1
label.text(text[new_line_pos[text_scroll_offset]:])
finally:
window.hide()
@ -166,7 +188,7 @@ def prompt_option(options, index=0, text = None, title=None, select_text="OK", n
ugfx.set_default_font(FONT_SMALL)
window = ugfx.Container(5, 5, ugfx.width() - 10, ugfx.height() - 10)
window.show()
list_y = 30
if title: