rig_picker/draw_handlers.py

127 lines
3.2 KiB
Python

import bpy
import gpu
from gpu_extras.batch import batch_for_shader
import blf
from pathlib import Path
from .constants import PICKERS
from .core.picker import Picker, PickerGroup, load_picker_data
import json
def draw_rect_2d(position, width, height, color):
"""
Draw a 2d rectangele.
:arg position: Position of the lower left corner.
:type position: 2D Vector
:arg width: Width of the rect.
:type width: float
:arg height: Height of the rect.
:type height: float
"""
coords = ((0, 0), (1, 0), (1, 1), (0, 1))
shader = gpu.shader.from_builtin('UNIFORM_COLOR')
batch = batch_for_shader(
shader, 'TRI_FAN',
{"pos": coords},
)
with gpu.matrix.push_pop():
gpu.matrix.translate(position)
gpu.matrix.scale((width, height))
shader.uniform_float("color", color)
batch.draw(shader)
def draw_callback_view():
space_data = bpy.context.space_data
if not space_data or not space_data.tree_type == 'RigPickerTree':
return
# Use the pin to know if this is the first time this picker window in created to hide the n panel
if not space_data.pin:
space_data.pin = True
space_data.show_region_ui = False
ob = bpy.context.object
if not ob or ob.type !='ARMATURE' or not ob.data.rig_picker.sources:
return
if ob not in PICKERS:
load_picker_data(ob)
picker_group = PICKERS[ob]
picker_group.draw()
def draw_callback_px():
sp = bpy.context.space_data
if not sp.tree_type == 'RigPickerTree':
return
ob = bpy.context.object
picker_group = PICKERS.get(ob)
if not picker_group or not picker_group.tooltip:
return
region = bpy.context.region
text = picker_group.tooltip
ui_scale = bpy.context.preferences.system.ui_scale
#print('Draw text', text)
font_id = 0
blf.size(font_id, int(13 * ui_scale))
margins = [12, 5]
text_size = blf.dimensions(font_id, text)
text_pos = (region.width - text_size[0]-margins[0], margins[1])
bg_pos = (text_pos[0] - margins[0], text_pos[1] - margins[1]-1)
bg_size = (text_size[0] + 2*margins[0], text_size[1] + 2*margins[1])
gpu.state.blend_set('ALPHA')
draw_rect_2d(bg_pos, *bg_size, (0.1, 0.1, 0.1, 0.66))
gpu.state.blend_set('NONE')
#blf.dimensions(font_id, text)
blf.enable(font_id, blf.SHADOW)
# BLF drawing routine
blf.position(font_id, round(text_pos[0]), round(text_pos[1]), 0)
blf.color(font_id, 0.85, 0.85, 0.85, 1)
blf.shadow(font_id , 5, 0.0, 0.0, 0.0, 1)
blf.shadow_offset(font_id, 2, -2)
blf.draw(font_id, text)
blf.disable(font_id, blf.SHADOW)
handle_view = None
handle_pixel = None
def register():
global handle_view
global handle_pixel
handle_view = bpy.types.SpaceNodeEditor.draw_handler_add(draw_callback_view, (), 'WINDOW', 'POST_VIEW')
handle_pixel = bpy.types.SpaceNodeEditor.draw_handler_add(draw_callback_px, (), 'WINDOW', 'POST_PIXEL')
def unregister():
global handle_view
global handle_pixel
bpy.types.SpaceNodeEditor.draw_handler_remove(handle_view, 'WINDOW')
bpy.types.SpaceNodeEditor.draw_handler_remove(handle_pixel, 'WINDOW')
handle_view = None
handle_pixel = None