def run(self, text_content = None, duration = 5, vsync_value = None, scale_refObj = None):
if not text_content is None:
self.text_content = text_content
if vsync_value is None:
vsync_value = self.vsync_value
duration *= 1e3 #convert to milliseconds
t0 = pygame.time.get_ticks()
t = pygame.time.get_ticks()
is_running = True
#render textSurface
self.textSurface = self.render_surface(self.text_content, self.font_size)
# check if we are scaling size to match other TextDisplay obj's last run() and scale textSurface if needed
if not scale_refObj is None:
ref_surface = scale_refObj.render_surface(scale_refObj.text_content, scale_refObj.font_size)
width_scale = float(ref_surface.get_width()) / float(self.textSurface.get_width())
height_scale = float(ref_surface.get_height()) / float(self.textSurface.get_height())
self.textSurface = pygame.transform.scale(self.textSurface, (int(width_scale * self.textSurface.get_width()), int(height_scale * self.textSurface.get_height())))
#set background color
gl.glClearColor(self.screen_bgColor[0], self.screen_bgColor[1], self.screen_bgColor[2], 1.0)
#prepare some values for rendering centered text
centerOffset_pixels = [-self.textSurface.get_width()/2, -self.textSurface.get_height()/2]
raster_position = self.get_coords(*centerOffset_pixels)
textData = pygame.image.tostring(self.textSurface, "RGBA", True)
while is_running:
#prepare rendering model
gl.glClear(gl.GL_COLOR_BUFFER_BIT)
gl.glMatrixMode(gl.GL_MODELVIEW)
gl.glLoadIdentity()
#render text
gl.glRasterPos2d(*raster_position)
gl.glDrawPixels(self.textSurface.get_width(), self.textSurface.get_height(), gl.GL_RGBA, gl.GL_UNSIGNED_BYTE, textData)
#render the vsync patch
self.vsync_patch.render(value = vsync_value)
#show the scene
pygame.display.flip()
#handle outstanding events
is_running = self.handle_events()
dt = self.clock.tick_busy_loop(self.render_loop_rate) #more accurate than tick, but uses more CPU resources
t = pygame.time.get_ticks()
if t - t0 > duration:
is_running = False
def render(self):
#this will draw background and vsync_patch
Screen.render(self)
# get file path for font file if it was specified
font_path = None
if self.font_type is None:
font_path = self.font_type
else:
font_path = resources.get_fontpath(self.font_type)
#render textSurface from text_content
self.font = pygame.font.Font(font_path, self.font_size)
rgb = [int(c*255) for c in self.text_color]
rgb_bg = [int(c*255) for c in self.text_bgColor]
self.textSurface = self.font.render(self.text_content, 1, rgb, rgb_bg)
#Scaling font; attempting to render text that is too wide/tall sets the raster position off screen and nothing is rendered
if self.textSurface.get_width() > self.screen_width:
percent_scale = float(self.screen_width) / self.textSurface.get_width()
self.font = pygame.font.Font(font_path, int(font_size * percent_scale))
self.textSurface = self.font.render(text_content, 1, rgb, rgb_bg)
print("'", text_content, "' is too wide for screen; scaling to fit")
if self.textSurface.get_height() > self.screen_height:
percent_scale = float(self.screen_height) / self.textSurface.get_height()
self.font = pygame.font.Font(font_path, int(font_size * percent_scale))
self.textSurface = self.font.render(text_content, 1, rgb, rgb_bg)
print("'", text_content, "' is too tall for screen; scaling to fit")
#prepare some values for rendering centered text
centerOffset_pixels = [-self.textSurface.get_width()/2, -self.textSurface.get_height()/2]
raster_position = self.get_coords(*centerOffset_pixels)
textData = pygame.image.tostring(self.textSurface, "RGBA", True)
#render text
gl.glRasterPos2d(*raster_position)
gl.glDrawPixels(self.textSurface.get_width(), self.textSurface.get_height(), gl.GL_RGBA, gl.GL_UNSIGNED_BYTE, textData)
# check if we are scaling size to match other TextDisplay obj's last run() and scale textSurface if needed
if not self.scale_refObj is None:
ref_surface = scale_refObj.render_surface(scale_refObj.text_content, scale_refObj.font_size)
width_scale = float(ref_surface.get_width()) / float(self.textSurface.get_width())
height_scale = float(ref_surface.get_height()) / float(self.textSurface.get_height())
new_width = int(width_scale * self.textSurface.get_width())
new_height = int(height_scale * self.textSurface.get_height())
self.textSurface = pygame.transform.scale(self.textSurface, (new_width,new_height))
