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from . bl_ui_widget import *
import blf
import bpy
class BL_UI_Image(BL_UI_Widget):
def __init__(self, x, y, width, height):
super().__init__(x, y, width, height)
self.__state = 0
self.__image = None
self.__image_size = (24, 24)
self.__image_position = (4, 2)
def set_image_size(self, imgage_size):
self.__image_size = imgage_size
def set_image_position(self, image_position):
self.__image_position = image_position
def set_image(self, rel_filepath):
try:
if self.__image is None or self.__image.filepath != rel_filepath:
self.__image = bpy.data.images.load(rel_filepath, check_existing=True)
self.__image.gl_load()
except:
pass
def update(self, x, y):
super().update(x, y)
def draw(self):
if not self._is_visible:
return
area_height = self.get_area_height()
self.shader.bind()
bgl.glEnable(bgl.GL_BLEND)
self.batch_panel.draw(self.shader)
self.draw_image()
bgl.glDisable(bgl.GL_BLEND)
def draw_image(self):
if self.__image is not None:
try:
y_screen_flip = self.get_area_height() - self.y_screen
off_x, off_y = self.__image_position
sx, sy = self.__image_size
# bottom left, top left, top right, bottom right
vertices = (
(self.x_screen + off_x, y_screen_flip - off_y),
(self.x_screen + off_x, y_screen_flip - sy - off_y),
(self.x_screen + off_x + sx, y_screen_flip - sy - off_y),
(self.x_screen + off_x + sx, y_screen_flip - off_y))
self.shader_img = gpu.shader.from_builtin('2D_IMAGE')
self.batch_img = batch_for_shader(self.shader_img, 'TRI_FAN',
{ "pos" : vertices,
"texCoord": ((0, 1), (0, 0), (1, 0), (1, 1))
},)
# send image to gpu if it isn't there already
if self.__image.gl_load():
raise Exception()
bgl.glActiveTexture(bgl.GL_TEXTURE0)
bgl.glBindTexture(bgl.GL_TEXTURE_2D, self.__image.bindcode)
self.shader_img.bind()
self.shader_img.uniform_int("image", 0)
self.batch_img.draw(self.shader_img)
return True
except:
pass
return False
def set_mouse_down(self, mouse_down_func):
self.mouse_down_func = mouse_down_func
def mouse_down(self, x, y):
return False
def mouse_move(self, x, y):
return
def mouse_up(self, x, y):
return
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