def draw(self):
imgui.new_frame()
imgui.set_next_window_position(16, 32, imgui.ONCE)
imgui.set_next_window_size(512, 512, imgui.ONCE)
imgui.begin("Example: drag and drop")
imgui.button('source')
if imgui.begin_drag_drop_source():
imgui.set_drag_drop_payload('itemtype', b'payload')
imgui.button('dragged source')
imgui.end_drag_drop_source()
imgui.button('dest')
if imgui.begin_drag_drop_target():
payload = imgui.accept_drag_drop_payload('itemtype')
if payload is not None:
print('Received:', payload)
imgui.end_drag_drop_target()
imgui.end()
imgui.end_frame()
imgui.render()
self.renderer.render(imgui.get_draw_data())
def draw(self):
imgui.begin("Example: drag and drop")
imgui.button('source')
if imgui.begin_drag_drop_source():
imgui.set_drag_drop_payload('itemtype', b'payload')
imgui.button('dragged source')
imgui.end_drag_drop_source()
imgui.button('dest')
if imgui.begin_drag_drop_target():
payload = imgui.accept_drag_drop_payload('itemtype')
if payload is not None:
print('Received:', payload)
imgui.end_drag_drop_target()
imgui.end()
def drag_drop_source(tag, payload, widget, dragged_widget=None, flags=0):
""" Drag-and-Drop Source Widget.
This widget is used in conjunction with `concur.widgets.drag_drop_target`.
See the [https://github.com/potocpav/python-concur/blob/master/examples/extra/drag_and_drop.py](examples/extra/drag_and_drop.py)
for an example.
Args:
tag: Drag-and-Drop event tag. Must match the tag in `drag_drop_target`.
payload: Pickle-able value which is to be returned in the drag-and-drop event.
widget: Widget which can be dragged.
dragged_widget: Widget inside the tooltip which is displayed while dragging.
Defaults to a `widget` copy.
flags: Flags to modify dragging behavior.
See [the pyimgui docs](https://pyimgui.readthedocs.io/en/latest/reference/imgui.html?highlight=WINDOW_MENU_BAR#imgui.DRAG_DROP_SOURCE_NO_PREVIEW_TOOLTIP)
for the flag list.
"""
while True:
try:
imgui.begin_group()
next(widget)
except StopIteration as e:
return e.value
finally:
imgui.end_group()
assert not (
flags & imgui.DRAG_DROP_SOURCE_ALLOW_NULL_ID
), "`SourceAllowNullID` is automatically set - do not set it manually."
if imgui.begin_drag_drop_source(
flags | imgui.DRAG_DROP_SOURCE_ALLOW_NULL_ID):
imgui.set_drag_drop_payload(tag, pickle.dumps(payload))
try:
next(dragged_widget if dragged_widget else widget)
except StopIteration as e:
assert ValueError(
"Drag and drop indicator widget (`dragged_widget`) fired an event. You can use `concur.forever` to supress widget events. If you have a legitimate use-case for this, please file an issue."
)
finally:
imgui.end_drag_drop_source()
yield
imgui.end_menu()
imgui.end_main_menu_bar()
#imgui.show_demo_window()
imgui.begin("Available GPIO Pins")
for pin in available_pins:
if pin[2]:
imgui.selectable("GPIO #" + str(pin[0]) + ", BCM #" +
str(pin[1]) + " (Hardware PWM)")
else:
imgui.selectable("GPIO #" + str(pin[0]) + ", BCM #" +
str(pin[1]))
if imgui.begin_drag_drop_source():
imgui.set_drag_drop_payload("pin", str(pin).encode())
if pin[2]:
imgui.text("GPIO #" + str(pin[0]) + ", BCM #" +
str(pin[1]) + " (Hardware PWM)")
else:
imgui.text("GPIO #" + str(pin[0]) + ", BCM #" +
str(pin[1]))
imgui.end_drag_drop_source()
imgui.end()
imgui.begin("GPIO Pin Values")
for pin in available_pins:
if pin[2]:
def render_palette_popup(drawing: Drawing):
global edit_color
global color_editor_open
palette = drawing.palette
fg = palette.foreground
bg = palette.background
fg_color = palette.foreground_color
bg_color = palette.background_color
open_color_editor = False
_, opened = imgui.begin("Color popup", True)
imgui.begin_child("Colors", height=0)
imgui.push_style_var(imgui.STYLE_ITEM_SPACING,
(0, 0)) # Make layout tighter
width = int(imgui.get_window_content_region_width()) // 25
for i, color in enumerate(palette.colors, 0):
is_foreground = i == fg
is_background = (i == bg) * 2
selection = is_foreground | is_background
if i in palette.overlay:
color = as_float(palette.overlay[i])
else:
color = as_float(color)
imgui.push_style_color(imgui.COLOR_FRAME_BACKGROUND,
*SELECTABLE_FRAME_COLORS[selection])
if imgui.color_button(f"color {i}", *color[:3], 1, 0, 25, 25):
# io = imgui.get_io()
# if io.key_shift:
# if "spread_start" in temp_vars:
# temp_vars["spread_end"] = i
# else:
# temp_vars["spread_start"] = i
# else:
fg = i
imgui.pop_style_color(1)
if imgui.core.is_item_clicked(1):
edit_color = i
color_editor_open = True
imgui.open_popup("Edit foreground color")
# imgui.set_next_window_position(w - 115 - 120, 200)
if imgui.core.is_item_clicked(2):
# Detect right button clicks on the button
bg = i
if imgui.begin_drag_drop_source():
imgui.set_drag_drop_payload('start_index',
i.to_bytes(1, sys.byteorder))
imgui.color_button(f"color {i}", *color[:3], 1, 0, 20, 20)
imgui.end_drag_drop_source()
if imgui.begin_drag_drop_target():
start_index = imgui.accept_drag_drop_payload('start_index')
if start_index is not None:
start_index = int.from_bytes(start_index, sys.byteorder)
io = imgui.get_io()
image_only = io.key_shift
# drawing.swap_colors(start_index, i, image_only=image_only)
# palette.clear_overlay()
imgui.end_drag_drop_target()
# if imgui.is_item_hovered():
# io = imgui.get_io()
# delta = int(io.mouse_wheel)
if i % width != width - 1:
imgui.same_line()
imgui.pop_style_var(1)
#color_editor_open = render_color_editor_popup(drawing, edit_color, color_editor_open)
imgui.end_child()
imgui.end()
palette.foreground = fg
palette.background = bg
return opened, open_color_editor
def render_palette(drawing: Drawing):
global color_editor_open # Need a persistent way to keep track of the popup being closed...
global current_color_page
palette = drawing.palette
fg = palette.foreground
bg = palette.background
fg_color = palette.foreground_color
bg_color = palette.background_color
imgui.begin_child("Palette", border=False, height=460)
# Edit foreground color
if imgui.color_button(f"Foreground (#{fg})", *as_float(fg_color), 0, 30,
30):
io = imgui.get_io()
w, h = io.display_size
imgui.open_popup("Edit foreground color")
imgui.set_next_window_position(w - 115 - 120, 200)
color_editor_open = True
if imgui.begin_popup("Edit foreground color",
flags=(imgui.WINDOW_NO_MOVE
| imgui.WINDOW_NO_SCROLL_WITH_MOUSE)):
done, cancelled, new_color = render_color_editor(
palette.colors[fg], fg_color)
if done and new_color != fg_color:
drawing.change_colors(fg, new_color)
palette.clear_overlay()
elif cancelled:
palette.clear_overlay()
else:
palette.set_overlay(fg, new_color)
imgui.end_popup()
elif color_editor_open:
# The popup was closed by clicking outside, keeping the change (same as OK)
drawing.change_colors(fg, fg_color)
palette.clear_overlay()
color_editor_open = False
imgui.same_line()
imgui.color_button(f"Background (#{bg})", *as_float(bg_color), 0, 30, 30)
max_pages = len(palette.colors) // 64 - 1
imgui.push_item_width(100)
_, current_color_page = imgui.slider_int("Page",
current_color_page,
min_value=0,
max_value=max_pages)
start_color = 64 * current_color_page
imgui.begin_child("Colors", border=False)
imgui.push_style_var(imgui.STYLE_ITEM_SPACING,
(0, 0)) # Make layout tighter
width = int(imgui.get_window_content_region_width()) // 20
imgui.push_style_color(imgui.COLOR_FRAME_BACKGROUND, 0, 0, 0)
colors = palette.colors
# Order the colors by column instead of by row (which is the order we draw them)
for i, c in enumerate(
chain.from_iterable(
zip(range(0, 16), range(16, 32), range(32, 48), range(48,
64)))):
color = colors[start_color + c]
is_foreground = c == fg
is_background = (c == bg) * 2
selection = is_foreground | is_background
color = as_float(color)
if color[3] == 0 or selection:
x, y = imgui.get_cursor_screen_pos()
if imgui.color_button(f"color {i}", *color[:3], 1, 0, 25, 25):
# io = imgui.get_io()
# if io.key_shift:
# if "spread_start" in temp_vars:
# temp_vars["spread_end"] = i
# else:
# temp_vars["spread_start"] = i
# else:
fg = c
if i % width != width - 1:
imgui.same_line()
draw_list = imgui.get_window_draw_list()
if color[3] == 0:
# Mark transparent color
draw_list.add_line(x + 1, y + 1, x + 24, y + 24,
imgui.get_color_u32_rgba(0, 0, 0, 1), 1)
draw_list.add_line(x + 1, y + 2, x + 23, y + 24,
imgui.get_color_u32_rgba(1, 1, 1, 1), 1)
if is_foreground:
# Mark foregroupd color
draw_list.add_rect_filled(x + 2, y + 2, x + 10, y + 10,
imgui.get_color_u32_rgba(1, 1, 1, 1))
draw_list.add_rect(x + 2, y + 2, x + 10, y + 10,
imgui.get_color_u32_rgba(0, 0, 0, 1))
if is_background:
# Mark background color
draw_list.add_rect_filled(x + 15, y + 2, x + 23, y + 10,
imgui.get_color_u32_rgba(0, 0, 0, 1))
draw_list.add_rect(x + 15, y + 2, x + 23, y + 10,
imgui.get_color_u32_rgba(1, 1, 1, 1))
if imgui.core.is_item_clicked(2):
# Right button sets background
bg = c
# Drag and drop (currently does not accomplish anything though)
if imgui.begin_drag_drop_source():
imgui.set_drag_drop_payload('start_index',
c.to_bytes(1, sys.byteorder))
imgui.color_button(f"color {c}", *color[:3], 1, 0, 20, 20)
imgui.end_drag_drop_source()
if imgui.begin_drag_drop_target():
start_index = imgui.accept_drag_drop_payload('start_index')
if start_index is not None:
start_index = int.from_bytes(start_index, sys.byteorder)
io = imgui.get_io()
image_only = io.key_shift
drawing.swap_colors(start_index, c, image_only=image_only)
palette.clear_overlay()
imgui.end_drag_drop_target()
imgui.pop_style_color(1)
imgui.pop_style_var(1)
imgui.end_child()
imgui.end_child()
if imgui.is_item_hovered():
io = imgui.get_io()
delta = int(io.mouse_wheel)
current_color_page = min(max(current_color_page - delta, 0), max_pages)
palette.foreground = fg
palette.background = bg
def frame_commands():
io = imgui.get_io()
if io.key_ctrl and io.keys_down[glfw.KEY_Q]:
sys.exit(0)
with imgui.begin_main_menu_bar() as main_menu_bar:
if main_menu_bar.opened:
with imgui.begin_menu("File", True) as file_menu:
if file_menu.opened:
clicked_quit, selected_quit = imgui.menu_item(
"Quit", "Ctrl+Q")
if clicked_quit:
sys.exit(0)
# turn examples on/off
with imgui.begin("Active examples"):
for label, enabled in active.copy().items():
_, enabled = imgui.checkbox(label, enabled)
active[label] = enabled
if active["window"]:
with imgui.begin("Hello, Imgui!"):
imgui.text("Hello, World!")
if active["child"]:
with imgui.begin("Example: child region"):
with imgui.begin_child("region", 150, -50, border=True):
imgui.text("inside region")
imgui.text("outside region")
if active["tooltip"]:
with imgui.begin("Example: tooltip"):
imgui.button("Click me!")
if imgui.is_item_hovered():
with imgui.begin_tooltip():
imgui.text("This button is clickable.")
if active["menu bar"]:
try:
flags = imgui.WINDOW_MENU_BAR
with imgui.begin("Child Window - File Browser", flags=flags):
with imgui.begin_menu_bar() as menu_bar:
if menu_bar.opened:
with imgui.begin_menu('File') as file_menu:
if file_menu.opened:
clicked, state = imgui.menu_item('Close')
if clicked:
active["menu bar"] = False
raise Exception
except Exception:
print("exception handled")
if active["popup"]:
with imgui.begin("Example: simple popup"):
if imgui.button("select"):
imgui.open_popup("select-popup")
imgui.same_line()
with imgui.begin_popup("select-popup") as popup:
if popup.opened:
imgui.text("Select one")
imgui.separator()
imgui.selectable("One")
imgui.selectable("Two")
imgui.selectable("Three")
if active["popup modal"]:
with imgui.begin("Example: simple popup modal"):
if imgui.button("Open Modal popup"):
imgui.open_popup("select-popup-modal")
imgui.same_line()
with imgui.begin_popup_modal("select-popup-modal") as popup:
if popup.opened:
imgui.text("Select an option:")
imgui.separator()
imgui.selectable("One")
imgui.selectable("Two")
imgui.selectable("Three")
if active["popup context item"]:
with imgui.begin("Example: popup context view"):
imgui.text("Right-click to set value.")
with imgui.begin_popup_context_item("Item Context Menu") as popup:
if popup.opened:
imgui.selectable("Set to Zero")
if active["popup context window"]:
with imgui.begin("Example: popup context window"):
with imgui.begin_popup_context_window() as popup:
if popup.opened:
imgui.selectable("Clear")
if active["popup context void"]:
with imgui.begin_popup_context_void() as popup:
if popup.opened:
imgui.selectable("Clear")
if active["drag drop"]:
with imgui.begin("Example: drag and drop"):
imgui.button('source')
with imgui.begin_drag_drop_source() as src:
if src.dragging:
imgui.set_drag_drop_payload('itemtype', b'payload')
imgui.button('dragged source')
imgui.button('dest')
with imgui.begin_drag_drop_target() as dst:
if dst.hovered:
payload = imgui.accept_drag_drop_payload('itemtype')
if payload is not None:
print('Received:', payload)
if active["group"]:
with imgui.begin("Example: item groups"):
with imgui.begin_group():
imgui.text("First group (buttons):")
imgui.button("Button A")
imgui.button("Button B")
imgui.same_line(spacing=50)
with imgui.begin_group():
imgui.text("Second group (text and bullet texts):")
imgui.bullet_text("Bullet A")
imgui.bullet_text("Bullet B")
if active["tab bar"]:
with imgui.begin("Example Tab Bar"):
with imgui.begin_tab_bar("MyTabBar") as tab_bar:
if tab_bar.opened:
with imgui.begin_tab_item("Item 1") as item1:
if item1.opened:
imgui.text("Here is the tab content!")
with imgui.begin_tab_item("Item 2") as item2:
if item2.opened:
imgui.text("Another content...")
global opened_state
with imgui.begin_tab_item("Item 3",
opened=opened_state) as item3:
opened_state = item3.opened
if item3.selected:
imgui.text("Hello Saylor!")
if active["list box"]:
with imgui.begin("Example: custom listbox"):
with imgui.begin_list_box("List", 200, 100) as list_box:
if list_box.opened:
imgui.selectable("Selected", True)
imgui.selectable("Not Selected", False)
if active["table"]:
with imgui.begin("Example: table"):
with imgui.begin_table("data", 2) as table:
if table.opened:
imgui.table_next_column()
imgui.table_header("A")
imgui.table_next_column()
imgui.table_header("B")
imgui.table_next_row()
imgui.table_next_column()
imgui.text("123")
imgui.table_next_column()
imgui.text("456")
imgui.table_next_row()
imgui.table_next_column()
imgui.text("789")
imgui.table_next_column()
imgui.text("111")
imgui.table_next_row()
imgui.table_next_column()
imgui.text("222")
imgui.table_next_column()
imgui.text("333")
def end_output(self):
if imgui.begin_drag_drop_source():
imgui.set_drag_drop_payload('itemtype', b'payload')
self.page.start_dnd(self.output)
imgui.button('dragged source')
imgui.end_drag_drop_source()