[imgui_node_editor] Can't set value for StyleVar.node_padding about imgui_bundle

[pthom]

@hugle: This example is different. Here you are trying to edit a list of float.
In the ImGui code, the declaration is as below:

bool ImGui::DragFloat4(const char* label, float v[4], float v_speed, float v_min, float v_max, const char* format, ImGuiSliderFlags flags)

It is true that in some cases you can see C++ code like this

ImGui::DragFloat4(const char* label, &someImVec4Value)

However, this uses the fact that the memory layout of ImVec4 and float[4] happens to be the same in C and C++. There is no such thing in Python, and IMHO this is for the better

[hugle]

I use get_style() and has no problem, but you will need to set x, y, z, w one by one in python as no API binding for python for direct assignment:

padding_list = [1.0,1.0,1.0,1.0]
style = ed.get_style()
style.node_padding.x = padding_list[0]
style.node_padding.y = padding_list[1]
style.node_padding.z = padding_list[2]
style.node_padding.w = padding_list[3]

[pthom]

Hello,

node_padding is a ImVec4, thus you should use

    ed.push_style_var(ed.StyleVar.node_padding, ImVec4(1, 1, 1, 1))

or

    style = ed.get_style()
    style.node_padding = ImVec4(8, 8, 8, 8)

[hugle]

Thanks @pthom , if ImVec4 is prefered. I would recommend update some of the imgui API (example below) from List[float] to ImVec4. Otherwise conversion between them is required, that would be redundant:

imgui_bundle/bindings/imgui_bundle/imgui/__init__.pyi

Lines 1429 to 1438 in f9d61bf

	def drag_float4(
	label: str,
	v: List[float],
	v_speed: float = 1.0,
	v_min: float = 0.0,
	v_max: float = 0.0,
	format: str = "%.3",
	flags: SliderFlags = 0,
	) -> Tuple[bool, List[float]]:
	pass