def on_framebuffer_resize(self, window, w, h):
"""Updates windows/UI sizes and redraws the UI with correct HDPI scaling."""
self.framebuffer_size = w, h
if self.is_minimized():
return
# NOTE: macOS and some Linux versions with the wayland display server have an
# upscaled framebuffer when using a high-DPI monitor. This means that screen
# coordinates != pixel coordinates. We need to know if this is the case in order
# to transform UI input into the right coordinates, so we check for this case
# here.
window_size = glfw.glfwGetWindowSize(window)
self.has_scaled_framebuffer = window_size != self.framebuffer_size
# Always clear buffers on resize to make sure that the black stripes left/right
# are black and not polluted from previous frames. Make sure this is applied on
# the whole window and not within glViewport!
gl_utils.glClear(gl_utils.GL_COLOR_BUFFER_BIT)
gl_utils.glClearColor(0, 0, 0, 1)
self.hdpi_factor = glfw.glfwGetWindowContentScale(window)[0]
self.gui.scale = self.gui_user_scale * self.hdpi_factor
with self.use_content_area() as (x, y, content_w, content_h):
# update GUI window to full window
self.gui.update_window(w, h)
# update content container to content square
# NOTE: since this is part of the UI, it will be affected by the gui
# scaling, but we actually need real coordinates, so we need to convert it
# back.
self.cont.outline = ui.FitBox(
ui.Vec2(x // self.hdpi_factor, y // self.hdpi_factor),
ui.Vec2(content_w // self.hdpi_factor,
content_h // self.hdpi_factor),
)
self.draw_texture()
self.gui.collect_menus()
self.update_gui()
gl_utils.glFlush()
glfw.glfwSwapBuffers(self._window)
def hdpi_changed(self):
return self.hdpi_factor != glfw.glfwGetWindowContentScale(
self._window)[0]
