1j01/textual-paint
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Show text selection within Textbox, and update it with Shift+arrows

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This commit is contained in:
Isaiah Odhner 2023-04-26 16:47:55 -04:00
parent 93eac0fc0e
commit c46586cc51
1 changed files with 28 additions and 15 deletions
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39
paint.py
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@ -1081,23 +1081,26 @@ class Canvas(Widget):
style = Style.parse(fg+" on "+bg) style = Style.parse(fg+" on "+bg)
assert style.color is not None assert style.color is not None
assert style.bgcolor is not None assert style.bgcolor is not None
# def offset_to_text_index(offset) -> int: def within_text_selection_highlight(textbox: Selection) -> int:
# # return offset.y * sel.region.width + offset.x if cell_x >= textbox.region.right:
# # return offset.y * self.image.width + offset.x # Prevent inverting outside the textbox.
# TODO: I think the x coordinate should be clamped to the textbox region.
# Then this check can be removed.
return False
def offset_to_text_index(offset: Offset) -> int:
return offset.y * textbox.region.width + offset.x
start_index = offset_to_text_index(textbox.text_selection_start)
end_index = offset_to_text_index(textbox.text_selection_end)
min_index = min(start_index, end_index)
max_index = max(start_index, end_index)
cell_index = offset_to_text_index(Offset(cell_x, cell_y) - textbox.region.offset)
return min_index <= cell_index <= max_index
assert isinstance(self.app, PaintApp) assert isinstance(self.app, PaintApp)
if ( if (
(self.magnifier_preview_region and magnifier_preview_region.contains(x, y) and (not inner_magnifier_preview_region.contains(x, y))) or (self.magnifier_preview_region and magnifier_preview_region.contains(x, y) and (not inner_magnifier_preview_region.contains(x, y))) or
(self.select_preview_region and select_preview_region.contains(x, y) and (not inner_select_preview_region.contains(x, y))) or (self.select_preview_region and select_preview_region.contains(x, y) and (not inner_select_preview_region.contains(x, y))) or
(sel and (not sel.textbox_mode) and (self.app.selection_drag_offset is None) and selection_region.contains(x, y) and (not inner_selection_region.contains(x, y))) or (sel and (not sel.textbox_mode) and (self.app.selection_drag_offset is None) and selection_region.contains(x, y) and (not inner_selection_region.contains(x, y))) or
(sel and sel.textbox_mode and ( (sel and sel.textbox_mode and within_text_selection_highlight(sel))
# offset_to_text_index(sel.text_selection_start) <=
# offset_to_text_index(Offset(x, y))
# < offset_to_text_index(sel.text_selection_end)
# sel.text_selection_start.x <= cell_x - sel.region.x < sel.text_selection_end.x and
# sel.text_selection_start.y <= cell_y - sel.region.y < sel.text_selection_end.y
sel.text_selection_start.x == cell_x - sel.region.x and
sel.text_selection_start.y == cell_y - sel.region.y
))
): ):
# invert the colors # invert the colors
style = Style.parse(f"rgb({255 - style.color.triplet.red},{255 - style.color.triplet.green},{255 - style.color.triplet.blue}) on rgb({255 - style.bgcolor.triplet.red},{255 - style.bgcolor.triplet.green},{255 - style.bgcolor.triplet.blue})") style = Style.parse(f"rgb({255 - style.color.triplet.red},{255 - style.color.triplet.green},{255 - style.color.triplet.blue}) on rgb({255 - style.bgcolor.triplet.red},{255 - style.bgcolor.triplet.green},{255 - style.bgcolor.triplet.blue})")
@ -2721,6 +2724,10 @@ class PaintApp(App[None]):
def on_key(self, event: events.Key) -> None: def on_key(self, event: events.Key) -> None:
"""Called when the user presses a key.""" """Called when the user presses a key."""
key = event.key key = event.key
shift = key.startswith("shift+")
if shift:
key = key[len("shift+"):]
if self.image.selection and not self.image.selection.textbox_mode: if self.image.selection and not self.image.selection.textbox_mode:
if key == "left": if key == "left":
self.move_selection_relative(-1, 0) self.move_selection_relative(-1, 0)
@ -2735,7 +2742,10 @@ class PaintApp(App[None]):
# TODO: delete selected text if any, when typing # TODO: delete selected text if any, when typing
# Note: Don't forget to set self.image.selection.textbox_edited = True # Note: Don't forget to set self.image.selection.textbox_edited = True
# for any new actions that actually affect the text content. # for any new actions that actually affect the text content.
x, y = self.image.selection.text_selection_start # if shift:
x, y = self.image.selection.text_selection_end
# else:
# x, y = self.image.selection.text_selection_start
if key == "enter": if key == "enter":
x = 0 x = 0
y += 1 y += 1
@ -2779,6 +2789,9 @@ class PaintApp(App[None]):
y = self.image.selection.contained_image.height - 1 y = self.image.selection.contained_image.height - 1
x = self.image.selection.contained_image.width - 1 x = self.image.selection.contained_image.width - 1
self.image.selection.textbox_edited = True self.image.selection.textbox_edited = True
if shift:
self.image.selection.text_selection_end = Offset(x, y)
else:
self.image.selection.text_selection_start = Offset(x, y) self.image.selection.text_selection_start = Offset(x, y)
self.image.selection.text_selection_end = Offset(x, y) self.image.selection.text_selection_end = Offset(x, y)
self.canvas.refresh_scaled_region(self.image.selection.region) self.canvas.refresh_scaled_region(self.image.selection.region)