def printChar(self, c, bg_buf=None): # get the charactes pixel bitmap and dimensions if self.text_font: fmv, rows, cols = self.text_font.get_ch(c) else: raise AttributeError('No font selected') cbytes, cbits = divmod(cols, 8) # Not in packed format dcols = (cbytes + 1) * 8 if cbits else cbytes * 8 # cols for display pix_count = dcols * rows # number of bits in the char # test char fit if self.text_x + cols > self.text_width: # does the char fit on the screen? if self.text_scroll: self.printCR() # No, then CR self.printNewline(True) # NL: advance to the next line else: return 0 # Retrieve Background data if transparency is required if self.transparency: # in case of transpareny, the frame buffer content is needed if bg_buf is None: # buffer allocation needed? if len(self.bg_buf) < pix_count * 3: del(self.bg_buf) gc.collect() self.bg_buf = bytearray(pix_count * 3) # Make it bigger bg_buf = self.bg_buf self.setXY(self.text_x, self.text_y, self.text_x + dcols - 1, self.text_y + rows - 1) # set area TFT_io.tft_read_cmd_data_AS(0x2e, bg_buf, pix_count * 3) # read background data else: bg_buf = 0 # dummy assignment, since None is not accepted # Set XY range & print char self.setXY(self.text_x, self.text_y, self.text_x + dcols - 1, self.text_y + rows - 1) # set area TFT_io.displaySCR_charbitmap(addressof(fmv), pix_count, self.text_color, bg_buf) # display char! #advance pointer self.text_x += (cols + self.text_gap) return cols + self.text_gap
def printChar(self, c, bg_buf=None): # get the charactes pixel bitmap and dimensions if self.text_font: fontptr, rows, cols = self.text_font.get_ch(ord(c)) else: raise AttributeError('No font selected') pix_count = cols * rows # number of bits in the char # test char fit if self.text_x + cols > self.text_width: # does the char fit on the screen? if self.text_scroll: self.printCR() # No, then CR self.printNewline(True) # NL: advance to the next line else: return 0 # Retrieve Background data if transparency is required if self.transparency: # in case of transpareny, the frame buffer content is needed if bg_buf is None: # buffer allocation needed? bg_buf = bytearray(pix_count * 3) # sigh... self.setXY(self.text_x, self.text_y, self.text_x + cols - 1, self.text_y + rows - 1) # set area TFT_io.tft_read_cmd_data_AS(0x2e, bg_buf, pix_count * 3) # read background data else: bg_buf = 0 # dummy assignment, since None is not accepted # Set XY range & print char self.setXY(self.text_x, self.text_y, self.text_x + cols - 1, self.text_y + rows - 1) # set area TFT_io.displaySCR_charbitmap(fontptr, pix_count, self.text_color, bg_buf) # display char! #advance pointer self.text_x += (cols + self.text_gap) return cols + self.text_gap
def printChar(self, c, bg_buf=None): # get the charactes pixel bitmap and dimensions if self.text_font: fontptr, rows, cols = self.text_font.get_ch(ord(c)) else: raise AttributeError('No font selected') pix_count = cols * rows # number of bits in the char # test char fit if self.text_x + cols > self.text_width: # does the char fit on the screen? if self.text_scroll: self.printCR() # No, then CR self.printNewline(True) # NL: advance to the next line else: return 0 # Retrieve Background data if transparency is required if self.transparency: # in case of transpareny, the frame buffer content is needed if bg_buf is None: # buffer allocation needed? bg_buf = bytearray(pix_count * 3) # sigh... self.setXY(self.text_x, self.text_y, self.text_x + cols - 1, self.text_y + rows - 1) # set area TFT_io.tft_read_cmd_data_AS(0x2e, bg_buf, pix_count * 3) # read background data else: bg_buf = 0 # dummy assignment, since None is not accepted # Set XY range & print char self.setXY(self.text_x, self.text_y, self.text_x + cols - 1, self.text_y + rows - 1) # set area TFT_io.displaySCR_charbitmap(fontptr, pix_count, self.text_color, bg_buf) # display char! #advance pointer self.text_x += (cols + self.text_gap) return cols + self.text_gap
def printChar(self, c, bg_buf=None): # get the charactes pixel bitmap and dimensions if self.text_font: fmv, rows, cols = self.text_font.get_ch(c) else: raise AttributeError('No font selected') cbytes, cbits = divmod(cols, 8) # Not in packed format dcols = (cbytes + 1) * 8 if cbits else cbytes * 8 # cols for display pix_count = dcols * rows # number of bits in the char # test char fit if self.text_x + cols > self.text_width: # does the char fit on the screen? if self.text_scroll: self.printCR() # No, then CR self.printNewline(True) # NL: advance to the next line else: return 0 # Retrieve Background data if transparency is required if self.transparency: # in case of transpareny, the frame buffer content is needed if bg_buf is None: # buffer allocation needed? if len(self.bg_buf) < pix_count * 3: del (self.bg_buf) gc.collect() self.bg_buf = bytearray(pix_count * 3) # Make it bigger bg_buf = self.bg_buf self.setXY(self.text_x, self.text_y, self.text_x + dcols - 1, self.text_y + rows - 1) # set area TFT_io.tft_read_cmd_data_AS(0x2e, bg_buf, pix_count * 3) # read background data else: bg_buf = 0 # dummy assignment, since None is not accepted # Set XY range & print char self.setXY(self.text_x, self.text_y, self.text_x + dcols - 1, self.text_y + rows - 1) # set area TFT_io.displaySCR_charbitmap(addressof(fmv), pix_count, self.text_color, bg_buf) # display char! #advance pointer self.text_x += (cols + self.text_gap) return cols + self.text_gap