static void redraw(GP_Backend *backend)
{
GP_Context *context = backend->context;
/* Now draw some testing patters */
black_pixel = GP_RGBToContextPixel(0x00, 0x00, 0x00, context);
white_pixel = GP_RGBToContextPixel(0xff, 0xff, 0xff, context);
red_pixel = GP_RGBToContextPixel(0xff, 0x00, 0x00, context);
blue_pixel = GP_RGBToContextPixel(0x00, 0x00, 0xff, context);
green_pixel = GP_RGBToContextPixel(0x00, 0xff, 0x00, context);
GP_Fill(context, white_pixel);
unsigned int i, j;
for (i = 0; i < 40; i++) {
GP_HLineXYW(context, 0, i, i, black_pixel);
GP_HLineXYW(context, 1, i + 40, i, black_pixel);
GP_HLineXYW(context, 2, i + 80, i, black_pixel);
GP_HLineXYW(context, 3, i + 120, i, black_pixel);
GP_HLineXYW(context, 4, i + 160, i, black_pixel);
GP_HLineXYW(context, 5, i + 200, i, black_pixel);
GP_HLineXYW(context, 6, i + 240, i, black_pixel);
GP_HLineXYW(context, 7, i + 280, i, black_pixel);
}
for (i = 0; i < 256; i++) {
for (j = 0; j < 256; j++) {
uint8_t val = 1.00 * sqrt(i*i + j*j)/sqrt(2) + 0.5;
GP_Pixel pix = GP_RGBToContextPixel(i, j, val, context);
GP_PutPixel(context, i + 60, j + 10, pix);
}
}
GP_Text(context, NULL, 60, 270, GP_VALIGN_BELOW|GP_ALIGN_RIGHT,
black_pixel, white_pixel, "Lorem Ipsum dolor sit...");
GP_Text(context, NULL, 60, 290, GP_VALIGN_BELOW|GP_ALIGN_RIGHT,
red_pixel, white_pixel, "Lorem Ipsum dolor sit...");
GP_Text(context, NULL, 60, 310, GP_VALIGN_BELOW|GP_ALIGN_RIGHT,
green_pixel, white_pixel, "Lorem Ipsum dolor sit...");
GP_Text(context, NULL, 60, 330, GP_VALIGN_BELOW|GP_ALIGN_RIGHT,
blue_pixel, white_pixel, "Lorem Ipsum dolor sit...");
/* Update the backend screen */
GP_BackendFlip(backend);
}
void redraw_screen(void)
{
GP_Fill(win->context, black_pixel);
/* draw axes intersecting in the middle, where text should be shown */
GP_HLine(win->context, 0, X, Y/2, darkgray_pixel);
GP_VLine(win->context, X/2, 0, Y, darkgray_pixel);
switch (font_flag) {
case 0:
style.font = &GP_DefaultProportionalFont;
break;
case 1:
style.font = &GP_DefaultConsoleFont;
break;
case 2:
style.font = GP_FontTinyMono;
break;
case 3:
style.font = GP_FontTiny;
break;
case 4:
style.font = GP_FontC64;
break;
case 5:
style.font = font;
break;
}
GP_Text(win->context, &style, X/2, Y/2, GP_ALIGN_LEFT|GP_VALIGN_BELOW,
yellow_pixel, black_pixel, "bottom left");
GP_Text(win->context, &style, X/2, Y/2, GP_ALIGN_RIGHT|GP_VALIGN_BELOW,
red_pixel, black_pixel, "bottom right");
GP_Text(win->context, &style, X/2, Y/2, GP_ALIGN_RIGHT|GP_VALIGN_ABOVE,
blue_pixel, black_pixel, "top right");
GP_Text(win->context, &style, X/2, Y/2, GP_ALIGN_LEFT|GP_VALIGN_ABOVE,
green_pixel, black_pixel, "top left");
GP_HLine(win->context, 0, X, Y/3, darkgray_pixel);
GP_Text(win->context, &style, X/2, Y/3, GP_ALIGN_CENTER|GP_VALIGN_BASELINE,
white_pixel, black_pixel, "x center y baseline");
}
void redraw_screen(void)
{
SDL_LockSurface(display);
GP_Fill(&context, black_pixel);
GP_Text(&context, NULL, W/2, 20, GP_ALIGN_CENTER | GP_VALIGN_BELOW,
darkgray_pixel, black_pixel, "GFXprim SDL Demo");
GP_Line(&context, 0, 0, W-1, H-1, darkgray_pixel);
GP_Line(&context, 0, H-1, W-1, 0, darkgray_pixel);
SDL_UnlockSurface(display);
}
void redraw_screen(void)
{
GP_Fill(win, gray_pixel);
GP_TextStyle style = GP_DEFAULT_TEXT_STYLE;
switch (font_flag) {
case 0:
style.font = &GP_DefaultConsoleFont;
break;
case 1:
style.font = &GP_DefaultProportionalFont;
break;
case 2:
style.font = GP_FontTinyMono;
break;
case 3:
style.font = GP_FontTiny;
break;
case 4:
style.font = GP_FontC64;
break;
case 5:
style.font = font;
break;
}
style.pixel_xmul = mul;
style.pixel_ymul = mul;
style.pixel_xspace = space;
style.pixel_yspace = space;
style.char_xspace = tracking;
/* Text alignment (we are always drawing to the right
* and below the starting point).
*/
int align = GP_ALIGN_RIGHT|GP_VALIGN_BELOW;
struct FileLine *line = first_line;
unsigned int i;
for (i = 0; i < win->h/GP_TextHeight(&style); i++) {
if (line == NULL)
break;
GP_Text(win, &style, 16, 16 + (1.0 * GP_TextHeight(&style))*i,
align, black_pixel, gray_pixel, line->text);
line = line->next;
}
}
void redraw_screen(void)
{
GP_Fill(win->context, black_pixel);
GP_TextStyle style = GP_DEFAULT_TEXT_STYLE;
switch (font_flag) {
case 0:
style.font = &GP_DefaultProportionalFont;
break;
case 1:
style.font = &GP_DefaultConsoleFont;
break;
case 2:
style.font = GP_FontTiny;
break;
case 3:
style.font = GP_FontTinyMono;
break;
case 4:
style.font = font;
break;
}
print_font_properties(style.font);
/* Text alignment (we are always drawing to the right
* and below the starting point).
*/
int align = GP_ALIGN_RIGHT|GP_VALIGN_BELOW;
const size_t TEST_STRING_COUNT = sizeof(test_strings)/sizeof(const char *);
size_t i;
for (i = 0; i < TEST_STRING_COUNT; i++) {
const char *test_string = test_strings[i];
style.pixel_xmul = 1;
style.pixel_ymul = 1;
style.pixel_xspace = 0;
style.pixel_yspace = 0;
style.char_xspace = tracking;
GP_FillRectXYWH(win->context,
16, SPACING*i + 16,
GP_TextWidth(&style, test_string),
GP_FontHeight(style.font),
dark_gray_pixel);
GP_RectXYWH(win->context,
15, SPACING*i + 15,
GP_TextMaxWidth(&style, strlen(test_string)) + 1,
GP_FontHeight(style.font) + 1,
blue_pixel);
GP_Text(win->context, &style, 16, SPACING*i + 16, align,
white_pixel, dark_gray_pixel, test_string);
style.pixel_xmul = 2;
style.pixel_ymul = 2;
style.pixel_yspace = 1;
GP_Text(win->context, &style, 34, SPACING * i + 44, align,
white_pixel, black_pixel, test_string);
GP_RectXYWH(win->context, 33, SPACING * i + 43,
GP_TextWidth(&style, test_string) + 1,
GP_TextHeight(&style) + 1, dark_gray_pixel);
style.pixel_xmul = 4;
style.pixel_ymul = 2;
style.pixel_xspace = 1;
style.pixel_yspace = 1;
if (font_flag == 2 || font_flag == 3) {
style.pixel_xmul = 2;
style.pixel_ymul = 5;
style.pixel_xspace = 2;
style.pixel_yspace = 2;
}
GP_Text(win->context, &style, 64, SPACING*i + 88, align,
dark_gray_pixel, black_pixel, test_string);
}
}
