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@ -131,20 +131,40 @@ static bool tinygl_font_pixel_get (char ch, uint8_t col, uint8_t row)
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/** Draw character using current font.
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@param ch character to draw
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@param offset coordinates of top left position. */
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void tinygl_draw_char (char ch, tinygl_point_t offset)
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@param offset coordinates of top left position
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@param rotate non-zero to rotate character
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@return position to draw next character. */
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tinygl_point_t tinygl_draw_char (char ch, tinygl_point_t offset, bool rotate)
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{
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uint8_t x;
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uint8_t y;
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for (x = 0; x < font->width; x++)
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if (rotate)
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{
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for (y = 0; y < font->height; y++)
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for (x = 0; x < font->height; x++)
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{
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for (y = 0; y < font->width; y++)
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{
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tinygl_draw_point (tinygl_point (x + offset.x,
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TINYGL_HEIGHT - 1 - (y + offset.y)),
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tinygl_font_pixel_get (ch, y, x));
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}
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}
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offset.y += font->width + 1;
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}
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else
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{
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for (x = 0; x < font->width; x++)
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{
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tinygl_draw_point (tinygl_point (x + offset.x, y + offset.y),
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tinygl_font_pixel_get (ch, x, y));
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for (y = 0; y < font->height; y++)
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{
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tinygl_draw_point (tinygl_point (x + offset.x, y + offset.y),
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tinygl_font_pixel_get (ch, x, y));
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}
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}
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offset.x += font->width + 1;
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}
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return offset;
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}
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@ -152,17 +172,26 @@ void tinygl_draw_char (char ch, tinygl_point_t offset)
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/** Draw string (well, as much as possible) using current font.
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@param str string to draw
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@param offset coordinates of top left position
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@param rotate non-zero to rotate string
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@return number of whole characters drawn. */
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uint8_t tinygl_draw_string (const char *str, tinygl_point_t offset)
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uint8_t tinygl_draw_string (const char *str, tinygl_point_t offset, bool rotate)
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{
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uint8_t count = 0;
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while (*str)
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{
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if (offset.x + font->width > TINYGL_WIDTH)
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break;
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tinygl_draw_char (*str, offset);
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offset.x += font->width + 1;
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if (rotate)
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{
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if (offset.y + font->width > TINYGL_HEIGHT)
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break;
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tinygl_draw_char (*str, offset, 1);
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}
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else
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{
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if (offset.x + font->width > TINYGL_WIDTH)
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break;
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tinygl_draw_char (*str, offset, 0);
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}
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count++;
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str++;
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}
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@ -170,11 +199,13 @@ uint8_t tinygl_draw_string (const char *str, tinygl_point_t offset)
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}
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/** Display a character.
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@param ch character to display
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@return 1 if character fully displayed. */
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static bool tinygl_display_char (char ch)
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{
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uint8_t x;
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uint8_t y;
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if (!font)
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@ -182,7 +213,7 @@ static bool tinygl_display_char (char ch)
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switch (text_mode)
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{
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case TINYGL_TEXT_MODE_SCROLL:
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case TINYGL_TEXT_MODE_SCROLL_LEFT:
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display_scroll_left ();
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for (y = 0; y < font->height; y++)
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@ -196,10 +227,27 @@ static bool tinygl_display_char (char ch)
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if (scroll_pos != 0)
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break;
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tinygl_draw_char (ch, tinygl_point (0, 0));
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tinygl_draw_char (ch, tinygl_point (0, 0), 0);
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break;
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}
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case TINYGL_TEXT_MODE_ROTATE_SCROLL_DOWN:
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display_scroll_down ();
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for (x = 0; x < font->height; x++)
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{
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tinygl_draw_point (tinygl_point (x, 0),
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tinygl_font_pixel_get (ch, scroll_pos, x));
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}
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break;
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case TINYGL_TEXT_MODE_ROTATE_STEP:
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if (scroll_pos != 0)
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break;
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tinygl_draw_char (ch, tinygl_point (0, 0), 1);
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break;
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}
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scroll_pos++;
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if (scroll_pos > font->width)
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scroll_pos = 0;
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