void MCGContextDrawPlatformText(MCGContextRef self, const unichar_t *p_text, uindex_t p_length, MCGPoint p_location, const MCGFont &p_font)
{
// MW-2013-12-19: [[ Bug 11559 ]] Do nothing if no text support.
if (!s_has_text_support)
return;
if (!MCGContextIsValid(self))
return;
bool t_success;
t_success = true;
if (t_success)
t_success = s_layout != NULL;
char *t_text;
t_text = nil;
if (t_success)
t_success = MCCStringFromUnicodeSubstring(p_text, p_length / 2, t_text);
MCGAffineTransform t_transform;
MCGPoint t_device_location;
PangoLayoutLine *t_line;
t_line = nil;
if (t_success)
{
t_transform = MCGContextGetDeviceTransform(self);
t_device_location = MCGPointApplyAffineTransform(p_location, t_transform);
t_transform . tx = modff(t_device_location . x, &t_device_location . x);
t_transform . ty = modff(t_device_location . y, &t_device_location . y);
PangoMatrix t_ptransform;
t_ptransform . xx = t_transform . a;
t_ptransform . xy = t_transform . b;
t_ptransform . yx = t_transform . c;
t_ptransform . yy = t_transform . d;
t_ptransform . x0 = t_transform . tx;
t_ptransform . y0 = t_transform . ty;
pango_context_set_matrix(s_pango, &t_ptransform);
pango_layout_set_font_description(s_layout, (PangoFontDescription *) p_font . fid);
pango_layout_set_text(s_layout, t_text, -1);
MCCStringFree(t_text);
extern PangoLayoutLine *(*pango_layout_get_line_readonly_ptr)(PangoLayout *, int);
if (pango_layout_get_line_readonly_ptr != nil)
t_line = pango_layout_get_line_readonly_ptr(s_layout, 0);
else
t_line = pango_layout_get_line(s_layout, 0);
t_success = t_line != nil;
}
MCGIntRectangle t_text_bounds, t_clipped_bounds;
if (t_success)
{
PangoRectangle t_pbounds;
pango_layout_line_get_extents(t_line, NULL, &t_pbounds);
MCGRectangle t_float_text_bounds;
t_float_text_bounds . origin . x = t_pbounds . x / PANGO_SCALE;
t_float_text_bounds . origin . y = t_pbounds . y / PANGO_SCALE;
t_float_text_bounds . size . width = t_pbounds . width / PANGO_SCALE;
t_float_text_bounds . size . height = t_pbounds . height / PANGO_SCALE;
MCGRectangle t_device_clip;
t_device_clip = MCGContextGetDeviceClipBounds(self);
t_device_clip . origin . x -= t_device_location . x;
t_device_clip . origin . y -= t_device_location . y;
MCGRectangle t_float_clipped_bounds;
t_float_clipped_bounds = MCGRectangleIntersection(t_float_text_bounds, t_device_clip);
t_text_bounds = MCGRectangleIntegerBounds(t_float_text_bounds);
t_clipped_bounds = MCGRectangleIntegerBounds(t_float_clipped_bounds);
if (t_clipped_bounds . width == 0 || t_clipped_bounds . height == 0)
return;
}
void *t_data;
t_data = nil;
if (t_success)
t_success = MCMemoryNew(t_clipped_bounds . width * t_clipped_bounds . height, t_data);
if (t_success)
{
FT_Bitmap t_ftbitmap;
t_ftbitmap . rows = t_clipped_bounds . height;
t_ftbitmap . width = t_clipped_bounds . width;
t_ftbitmap . pitch = t_clipped_bounds . width;
t_ftbitmap . buffer = (unsigned char*) t_data;
t_ftbitmap . num_grays = 256;
t_ftbitmap . pixel_mode = FT_PIXEL_MODE_GRAY;
t_ftbitmap . palette_mode = 0;
t_ftbitmap . palette = nil;
pango_ft2_render_layout_line(&t_ftbitmap, t_line, -(t_clipped_bounds . x - t_text_bounds . x), -(t_clipped_bounds . y - t_text_bounds . y) - t_text_bounds . y);
SkPaint t_paint;
t_paint . setStyle(SkPaint::kFill_Style);
t_paint . setAntiAlias(self -> state -> should_antialias);
t_paint . setColor(MCGColorToSkColor(self -> state -> fill_color));
SkXfermode *t_blend_mode;
t_blend_mode = MCGBlendModeToSkXfermode(self -> state -> blend_mode);
t_paint . setXfermode(t_blend_mode);
if (t_blend_mode != NULL)
t_blend_mode -> unref();
SkBitmap t_bitmap;
t_bitmap . setConfig(SkBitmap::kA8_Config, t_clipped_bounds . width, t_clipped_bounds . height);
t_bitmap . setIsOpaque(false);
t_bitmap . setPixels(t_data);
self -> layer -> canvas -> drawSprite(t_bitmap, t_clipped_bounds . x + t_device_location . x,
t_clipped_bounds . y + t_device_location . y, &t_paint);
}
MCMemoryDelete(t_data);
self -> is_valid = t_success;
}
static void MCFontDrawTextCallback(MCFontRef p_font, MCStringRef p_text, MCRange p_range, font_draw_text_context *ctxt)
{
MCGFont t_font;
t_font = MCFontStructToMCGFont(p_font->fontstruct);
// MW-2013-12-04: [[ Bug 11535 ]] Pass through the fixed advance.
t_font . fixed_advance = p_font -> fixed_advance;
// The drawing is done on the UTF-16 form of the text
MCGContextDrawPlatformText(ctxt->m_gcontext, MCStringGetCharPtr(p_text) + p_range.offset, p_range.length*2, MCGPointMake(ctxt->x, ctxt->y), t_font, ctxt->rtl);
// The draw position needs to be advanced
// MM-2014-04-16: [[ Bug 11964 ]] Pass through the scale of the context to make sure the measurment is correct.
ctxt -> x += MCGContextMeasurePlatformText(NULL, MCStringGetCharPtr(p_text) + p_range.offset, p_range.length*2, t_font, MCGContextGetDeviceTransform(ctxt->m_gcontext));
}