2021-10-13 10:00:23 +00:00
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# Copyright (c) 2021, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
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2021-10-07 09:55:26 +00:00
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#
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# NVIDIA CORPORATION and its licensors retain all intellectual property
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# and proprietary rights in and to this software, related documentation
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# and any modifications thereto. Any use, reproduction, disclosure or
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# distribution of this software and related documentation without an express
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# license agreement from NVIDIA CORPORATION is strictly prohibited.
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import contextlib
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import imgui
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#----------------------------------------------------------------------------
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def set_default_style(color_scheme='dark', spacing=9, indent=23, scrollbar=27):
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s = imgui.get_style()
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s.window_padding = [spacing, spacing]
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s.item_spacing = [spacing, spacing]
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s.item_inner_spacing = [spacing, spacing]
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s.columns_min_spacing = spacing
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s.indent_spacing = indent
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s.scrollbar_size = scrollbar
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s.frame_padding = [4, 3]
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s.window_border_size = 1
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s.child_border_size = 1
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s.popup_border_size = 1
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s.frame_border_size = 1
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s.window_rounding = 0
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s.child_rounding = 0
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s.popup_rounding = 3
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s.frame_rounding = 3
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s.scrollbar_rounding = 3
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s.grab_rounding = 3
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getattr(imgui, f'style_colors_{color_scheme}')(s)
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c0 = s.colors[imgui.COLOR_MENUBAR_BACKGROUND]
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c1 = s.colors[imgui.COLOR_FRAME_BACKGROUND]
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s.colors[imgui.COLOR_POPUP_BACKGROUND] = [x * 0.7 + y * 0.3 for x, y in zip(c0, c1)][:3] + [1]
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#----------------------------------------------------------------------------
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@contextlib.contextmanager
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def grayed_out(cond=True):
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if cond:
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s = imgui.get_style()
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text = s.colors[imgui.COLOR_TEXT_DISABLED]
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grab = s.colors[imgui.COLOR_SCROLLBAR_GRAB]
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back = s.colors[imgui.COLOR_MENUBAR_BACKGROUND]
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imgui.push_style_color(imgui.COLOR_TEXT, *text)
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imgui.push_style_color(imgui.COLOR_CHECK_MARK, *grab)
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imgui.push_style_color(imgui.COLOR_SLIDER_GRAB, *grab)
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imgui.push_style_color(imgui.COLOR_SLIDER_GRAB_ACTIVE, *grab)
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imgui.push_style_color(imgui.COLOR_FRAME_BACKGROUND, *back)
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imgui.push_style_color(imgui.COLOR_FRAME_BACKGROUND_HOVERED, *back)
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imgui.push_style_color(imgui.COLOR_FRAME_BACKGROUND_ACTIVE, *back)
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imgui.push_style_color(imgui.COLOR_BUTTON, *back)
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imgui.push_style_color(imgui.COLOR_BUTTON_HOVERED, *back)
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imgui.push_style_color(imgui.COLOR_BUTTON_ACTIVE, *back)
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imgui.push_style_color(imgui.COLOR_HEADER, *back)
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imgui.push_style_color(imgui.COLOR_HEADER_HOVERED, *back)
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imgui.push_style_color(imgui.COLOR_HEADER_ACTIVE, *back)
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imgui.push_style_color(imgui.COLOR_POPUP_BACKGROUND, *back)
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yield
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imgui.pop_style_color(14)
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else:
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yield
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#----------------------------------------------------------------------------
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@contextlib.contextmanager
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def item_width(width=None):
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if width is not None:
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imgui.push_item_width(width)
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yield
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imgui.pop_item_width()
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else:
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yield
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#----------------------------------------------------------------------------
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def scoped_by_object_id(method):
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def decorator(self, *args, **kwargs):
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imgui.push_id(str(id(self)))
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res = method(self, *args, **kwargs)
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imgui.pop_id()
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return res
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return decorator
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#----------------------------------------------------------------------------
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def button(label, width=0, enabled=True):
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with grayed_out(not enabled):
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clicked = imgui.button(label, width=width)
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clicked = clicked and enabled
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return clicked
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#----------------------------------------------------------------------------
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def collapsing_header(text, visible=None, flags=0, default=False, enabled=True, show=True):
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expanded = False
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if show:
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if default:
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flags |= imgui.TREE_NODE_DEFAULT_OPEN
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if not enabled:
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flags |= imgui.TREE_NODE_LEAF
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with grayed_out(not enabled):
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expanded, visible = imgui.collapsing_header(text, visible=visible, flags=flags)
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expanded = expanded and enabled
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return expanded, visible
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#----------------------------------------------------------------------------
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def popup_button(label, width=0, enabled=True):
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if button(label, width, enabled):
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imgui.open_popup(label)
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opened = imgui.begin_popup(label)
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return opened
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#----------------------------------------------------------------------------
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def input_text(label, value, buffer_length, flags, width=None, help_text=''):
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old_value = value
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color = list(imgui.get_style().colors[imgui.COLOR_TEXT])
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if value == '':
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color[-1] *= 0.5
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with item_width(width):
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imgui.push_style_color(imgui.COLOR_TEXT, *color)
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value = value if value != '' else help_text
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changed, value = imgui.input_text(label, value, buffer_length, flags)
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value = value if value != help_text else ''
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imgui.pop_style_color(1)
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if not flags & imgui.INPUT_TEXT_ENTER_RETURNS_TRUE:
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changed = (value != old_value)
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return changed, value
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#----------------------------------------------------------------------------
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def drag_previous_control(enabled=True):
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dragging = False
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dx = 0
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dy = 0
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if imgui.begin_drag_drop_source(imgui.DRAG_DROP_SOURCE_NO_PREVIEW_TOOLTIP):
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if enabled:
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dragging = True
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dx, dy = imgui.get_mouse_drag_delta()
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imgui.reset_mouse_drag_delta()
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imgui.end_drag_drop_source()
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return dragging, dx, dy
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#----------------------------------------------------------------------------
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def drag_button(label, width=0, enabled=True):
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clicked = button(label, width=width, enabled=enabled)
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dragging, dx, dy = drag_previous_control(enabled=enabled)
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return clicked, dragging, dx, dy
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#----------------------------------------------------------------------------
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def drag_hidden_window(label, x, y, width, height, enabled=True):
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imgui.push_style_color(imgui.COLOR_WINDOW_BACKGROUND, 0, 0, 0, 0)
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imgui.push_style_color(imgui.COLOR_BORDER, 0, 0, 0, 0)
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imgui.set_next_window_position(x, y)
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imgui.set_next_window_size(width, height)
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imgui.begin(label, closable=False, flags=(imgui.WINDOW_NO_TITLE_BAR | imgui.WINDOW_NO_RESIZE | imgui.WINDOW_NO_MOVE))
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dragging, dx, dy = drag_previous_control(enabled=enabled)
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imgui.end()
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imgui.pop_style_color(2)
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return dragging, dx, dy
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#----------------------------------------------------------------------------
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