void RenderContext::draw_text(litehtml::uint_ptr hdc, const litehtml::tchar_t* text, litehtml::uint_ptr hFont, litehtml::web_color color, const litehtml::position& pos )
{
CntxFont* fnt = (CntxFont*)hFont;
int x = pos.left();
int y = pos.top();// - ext.descent;
fnt->font.setColor(NColor(color.alpha,color.red,color.green,color.blue));
fnt->font.draw( _picture, text, Point(x,y), true, false);
int tw = 0;
if(fnt->underline || fnt->strikeout)
{
tw = text_width(text, hFont);
}
if(fnt->underline)
{
int h = fnt->font.getTextSize(text).height();
Decorator::drawLine( _picture, Point(x, y + h + 1),Point(x + tw,y + h + 1), NColor(color.alpha, color.red, color.green, color.blue));
}
if(fnt->strikeout)
{
Size tex = fnt->font.getTextSize("x");
int ln_y = y - tex.height() / 2.0;
Decorator::drawLine( _picture, Point(x, y + ln_y - 1),Point(x + tw, y + ln_y - 1), NColor(color.alpha, color.red, color.green, color.blue));
}
}
void litehtml::element::get_redraw_box(litehtml::position& pos, int x /*= 0*/, int y /*= 0*/)
{
if(is_visible())
{
int p_left = std::min(pos.left(), x + m_pos.left() - m_padding.left - m_borders.left);
int p_right = std::max(pos.right(), x + m_pos.right() + m_padding.left + m_borders.left);
int p_top = std::min(pos.top(), y + m_pos.top() - m_padding.top - m_borders.top);
int p_bottom = std::max(pos.bottom(), y + m_pos.bottom() + m_padding.bottom + m_borders.bottom);
pos.x = p_left;
pos.y = p_top;
pos.width = p_right - p_left;
pos.height = p_bottom - p_top;
}
}
void cairo_container::draw_text( litehtml::uint_ptr hdc, const litehtml::tchar_t* text, litehtml::uint_ptr hFont, litehtml::web_color color, const litehtml::position& pos )
{
if(hFont)
{
cairo_font* fnt = (cairo_font*) hFont;
cairo_t* cr = (cairo_t*) hdc;
cairo_save(cr);
apply_clip(cr);
int x = pos.left();
int y = pos.bottom() - fnt->metrics().descent;
set_color(cr, color);
fnt->show_text(cr, x, y, text);
cairo_restore(cr);
}
}
void cairo_container::rounded_rectangle(cairo_t* cr, const litehtml::position& pos, const litehtml::border_radiuses& radius)
{
cairo_new_path(cr);
if(radius.top_left_x)
{
cairo_arc(cr, pos.left() + radius.top_left_x, pos.top() + radius.top_left_x, radius.top_left_x, M_PI, M_PI * 3.0 / 2.0);
} else
{
cairo_move_to(cr, pos.left(), pos.top());
}
cairo_line_to(cr, pos.right() - radius.top_right_x, pos.top());
if(radius.top_right_x)
{
cairo_arc(cr, pos.right() - radius.top_right_x, pos.top() + radius.top_right_x, radius.top_right_x, M_PI * 3.0 / 2.0, 2.0 * M_PI);
}
cairo_line_to(cr, pos.right(), pos.bottom() - radius.bottom_right_x);
if(radius.bottom_right_x)
{
cairo_arc(cr, pos.right() - radius.bottom_right_x, pos.bottom() - radius.bottom_right_x, radius.bottom_right_x, 0, M_PI / 2.0);
}
cairo_line_to(cr, pos.left() - radius.bottom_left_x, pos.bottom());
if(radius.bottom_left_x)
{
cairo_arc(cr, pos.left() + radius.bottom_left_x, pos.bottom() - radius.bottom_left_x, radius.bottom_left_x, M_PI / 2.0, M_PI);
}
}
void cairo_container::draw_borders( litehtml::uint_ptr hdc, const litehtml::borders& borders, const litehtml::position& draw_pos, bool root )
{
cairo_t* cr = (cairo_t*) hdc;
cairo_save(cr);
apply_clip(cr);
cairo_new_path(cr);
int bdr_top = 0;
int bdr_bottom = 0;
int bdr_left = 0;
int bdr_right = 0;
if(borders.top.width != 0 && borders.top.style > litehtml::border_style_hidden)
{
bdr_top = (int) borders.top.width;
}
if(borders.bottom.width != 0 && borders.bottom.style > litehtml::border_style_hidden)
{
bdr_bottom = (int) borders.bottom.width;
}
if(borders.left.width != 0 && borders.left.style > litehtml::border_style_hidden)
{
bdr_left = (int) borders.left.width;
}
if(borders.right.width != 0 && borders.right.style > litehtml::border_style_hidden)
{
bdr_right = (int) borders.right.width;
}
// draw right border
if (bdr_right)
{
set_color(cr, borders.right.color);
double r_top = (double) borders.radius.top_right_x;
double r_bottom = (double) borders.radius.bottom_right_x;
if(r_top)
{
double end_angle = 2.0 * M_PI;
double start_angle = end_angle - M_PI / 2.0 / ((double) bdr_top / (double) bdr_right + 0.5);
if (!add_path_arc(cr,
draw_pos.right() - r_top,
draw_pos.top() + r_top,
r_top - bdr_right,
r_top - bdr_right + (bdr_right - bdr_top),
end_angle,
start_angle, true))
{
cairo_move_to(cr, draw_pos.right() - bdr_right, draw_pos.top() + bdr_top);
}
if (!add_path_arc(cr,
draw_pos.right() - r_top,
draw_pos.top() + r_top,
r_top,
r_top,
start_angle,
end_angle, false))
{
cairo_line_to(cr, draw_pos.right(), draw_pos.top());
}
} else
{
cairo_move_to(cr, draw_pos.right() - bdr_right, draw_pos.top() + bdr_top);
cairo_line_to(cr, draw_pos.right(), draw_pos.top());
}
if(r_bottom)
{
cairo_line_to(cr, draw_pos.right(), draw_pos.bottom() - r_bottom);
double start_angle = 0;
double end_angle = start_angle + M_PI / 2.0 / ((double) bdr_bottom / (double) bdr_right + 0.5);
if (!add_path_arc(cr,
draw_pos.right() - r_bottom,
draw_pos.bottom() - r_bottom,
r_bottom,
r_bottom,
start_angle,
end_angle, false))
{
cairo_line_to(cr, draw_pos.right(), draw_pos.bottom());
}
if (!add_path_arc(cr,
draw_pos.right() - r_bottom,
draw_pos.bottom() - r_bottom,
r_bottom - bdr_right,
r_bottom - bdr_right + (bdr_right - bdr_bottom),
end_angle,
start_angle, true))
{
cairo_line_to(cr, draw_pos.right() - bdr_right, draw_pos.bottom() - bdr_bottom);
}
} else
{
cairo_line_to(cr, draw_pos.right(), draw_pos.bottom());
cairo_line_to(cr, draw_pos.right() - bdr_right, draw_pos.bottom() - bdr_bottom);
}
cairo_fill(cr);
}
// draw bottom border
if(bdr_bottom)
{
set_color(cr, borders.bottom.color);
double r_left = borders.radius.bottom_left_x;
double r_right = borders.radius.bottom_right_x;
if(r_left)
{
double start_angle = M_PI / 2.0;
double end_angle = start_angle + M_PI / 2.0 / ((double) bdr_left / (double) bdr_bottom + 0.5);
if (!add_path_arc(cr,
draw_pos.left() + r_left,
draw_pos.bottom() - r_left,
r_left - bdr_bottom + (bdr_bottom - bdr_left),
r_left - bdr_bottom,
start_angle,
end_angle, false))
{
cairo_move_to(cr, draw_pos.left() + bdr_left, draw_pos.bottom() - bdr_bottom);
}
if (!add_path_arc(cr,
draw_pos.left() + r_left,
draw_pos.bottom() - r_left,
r_left,
r_left,
end_angle,
start_angle, true))
{
cairo_line_to(cr, draw_pos.left(), draw_pos.bottom());
}
} else
{
cairo_move_to(cr, draw_pos.left(), draw_pos.bottom());
cairo_line_to(cr, draw_pos.left() + bdr_left, draw_pos.bottom() - bdr_bottom);
}
if(r_right)
{
cairo_line_to(cr, draw_pos.right() - r_right, draw_pos.bottom());
double end_angle = M_PI / 2.0;
double start_angle = end_angle - M_PI / 2.0 / ((double) bdr_right / (double) bdr_bottom + 0.5);
if (!add_path_arc(cr,
draw_pos.right() - r_right,
draw_pos.bottom() - r_right,
r_right,
r_right,
end_angle,
start_angle, true))
{
cairo_line_to(cr, draw_pos.right(), draw_pos.bottom());
}
if (!add_path_arc(cr,
draw_pos.right() - r_right,
draw_pos.bottom() - r_right,
r_right - bdr_bottom + (bdr_bottom - bdr_right),
r_right - bdr_bottom,
start_angle,
end_angle, false))
{
cairo_line_to(cr, draw_pos.right() - bdr_right, draw_pos.bottom() - bdr_bottom);
}
} else
{
cairo_line_to(cr, draw_pos.right() - bdr_right, draw_pos.bottom() - bdr_bottom);
cairo_line_to(cr, draw_pos.right(), draw_pos.bottom());
}
cairo_fill(cr);
}
// draw top border
if(bdr_top)
{
set_color(cr, borders.top.color);
double r_left = borders.radius.top_left_x;
double r_right = borders.radius.top_right_x;
if(r_left)
{
double end_angle = M_PI * 3.0 / 2.0;
double start_angle = end_angle - M_PI / 2.0 / ((double) bdr_left / (double) bdr_top + 0.5);
if (!add_path_arc(cr,
draw_pos.left() + r_left,
draw_pos.top() + r_left,
r_left,
r_left,
end_angle,
start_angle, true))
{
cairo_move_to(cr, draw_pos.left(), draw_pos.top());
}
if (!add_path_arc(cr,
draw_pos.left() + r_left,
draw_pos.top() + r_left,
r_left - bdr_top + (bdr_top - bdr_left),
r_left - bdr_top,
start_angle,
end_angle, false))
{
cairo_line_to(cr, draw_pos.left() + bdr_left, draw_pos.top() + bdr_top);
}
} else
{
cairo_move_to(cr, draw_pos.left(), draw_pos.top());
cairo_line_to(cr, draw_pos.left() + bdr_left, draw_pos.top() + bdr_top);
}
if(r_right)
{
cairo_line_to(cr, draw_pos.right() - r_right, draw_pos.top() + bdr_top);
double start_angle = M_PI * 3.0 / 2.0;
double end_angle = start_angle + M_PI / 2.0 / ((double) bdr_right / (double) bdr_top + 0.5);
if (!add_path_arc(cr,
draw_pos.right() - r_right,
draw_pos.top() + r_right,
r_right - bdr_top + (bdr_top - bdr_right),
r_right - bdr_top,
start_angle,
end_angle, false))
{
cairo_line_to(cr, draw_pos.right() - bdr_right, draw_pos.top() + bdr_top);
}
if (!add_path_arc(cr,
draw_pos.right() - r_right,
draw_pos.top() + r_right,
r_right,
r_right,
end_angle,
start_angle, true))
{
cairo_line_to(cr, draw_pos.right(), draw_pos.top());
}
} else
{
cairo_line_to(cr, draw_pos.right() - bdr_right, draw_pos.top() + bdr_top);
cairo_line_to(cr, draw_pos.right(), draw_pos.top());
}
cairo_fill(cr);
}
// draw left border
if (bdr_left)
{
set_color(cr, borders.left.color);
double r_top = borders.radius.top_left_x;
double r_bottom = borders.radius.bottom_left_x;
if(r_top)
{
double start_angle = M_PI;
double end_angle = start_angle + M_PI / 2.0 / ((double) bdr_top / (double) bdr_left + 0.5);
if (!add_path_arc(cr,
draw_pos.left() + r_top,
draw_pos.top() + r_top,
r_top - bdr_left,
r_top - bdr_left + (bdr_left - bdr_top),
start_angle,
end_angle, false))
{
cairo_move_to(cr, draw_pos.left() + bdr_left, draw_pos.top() + bdr_top);
}
if (!add_path_arc(cr,
draw_pos.left() + r_top,
draw_pos.top() + r_top,
r_top,
r_top,
end_angle,
start_angle, true))
{
cairo_line_to(cr, draw_pos.left(), draw_pos.top());
}
} else
{
cairo_move_to(cr, draw_pos.left() + bdr_left, draw_pos.top() + bdr_top);
cairo_line_to(cr, draw_pos.left(), draw_pos.top());
}
if(r_bottom)
{
cairo_line_to(cr, draw_pos.left(), draw_pos.bottom() - r_bottom);
double end_angle = M_PI;
double start_angle = end_angle - M_PI / 2.0 / ((double) bdr_bottom / (double) bdr_left + 0.5);
if (!add_path_arc(cr,
draw_pos.left() + r_bottom,
draw_pos.bottom() - r_bottom,
r_bottom,
r_bottom,
end_angle,
start_angle, true))
{
cairo_line_to(cr, draw_pos.left(), draw_pos.bottom());
}
if (!add_path_arc(cr,
draw_pos.left() + r_bottom,
draw_pos.bottom() - r_bottom,
r_bottom - bdr_left,
r_bottom - bdr_left + (bdr_left - bdr_bottom),
start_angle,
end_angle, false))
{
cairo_line_to(cr, draw_pos.left() + bdr_left, draw_pos.bottom() - bdr_bottom);
}
} else
{
cairo_line_to(cr, draw_pos.left(), draw_pos.bottom());
cairo_line_to(cr, draw_pos.left() + bdr_left, draw_pos.bottom() - bdr_bottom);
}
cairo_fill(cr);
}
cairo_restore(cr);
}
void gdiplus_container::draw_img_bg( HDC hdc, litehtml::uint_ptr img, const litehtml::position& draw_pos, const litehtml::position& pos, litehtml::background_repeat repeat, litehtml::background_attachment attachment )
{
Gdiplus::Bitmap* bgbmp = (Gdiplus::Bitmap*) img;
int img_width = bgbmp->GetWidth();
int img_height = bgbmp->GetHeight();
Gdiplus::Graphics graphics(hdc);
graphics.SetInterpolationMode(Gdiplus::InterpolationModeNearestNeighbor);
graphics.SetPixelOffsetMode(Gdiplus::PixelOffsetModeHalf);
Gdiplus::Region reg(Gdiplus::Rect(draw_pos.left(), draw_pos.top(), draw_pos.width, draw_pos.height));
graphics.SetClip(®);
switch(repeat)
{
case litehtml::background_repeat_no_repeat:
{
graphics.DrawImage(bgbmp, pos.x, pos.y, bgbmp->GetWidth(), bgbmp->GetHeight());
}
break;
case litehtml::background_repeat_repeat_x:
{
Gdiplus::CachedBitmap bmp(bgbmp, &graphics);
for(int x = pos.left(); x < pos.right(); x += bgbmp->GetWidth())
{
graphics.DrawCachedBitmap(&bmp, x, pos.top());
}
for(int x = pos.left() - bgbmp->GetWidth(); x + (int) bgbmp->GetWidth() > draw_pos.left(); x -= bgbmp->GetWidth())
{
graphics.DrawCachedBitmap(&bmp, x, pos.top());
}
}
break;
case litehtml::background_repeat_repeat_y:
{
Gdiplus::CachedBitmap bmp(bgbmp, &graphics);
for(int y = pos.top(); y < pos.bottom(); y += bgbmp->GetHeight())
{
graphics.DrawCachedBitmap(&bmp, pos.left(), y);
}
for(int y = pos.top() - bgbmp->GetHeight(); y + (int) bgbmp->GetHeight() > draw_pos.top(); y -= bgbmp->GetHeight())
{
graphics.DrawCachedBitmap(&bmp, pos.left(), y);
}
}
break;
case litehtml::background_repeat_repeat:
{
Gdiplus::CachedBitmap bmp(bgbmp, &graphics);
if(bgbmp->GetHeight() >= 0)
{
for(int x = pos.left(); x < pos.right(); x += bgbmp->GetWidth())
{
for(int y = pos.top(); y < pos.bottom(); y += bgbmp->GetHeight())
{
graphics.DrawCachedBitmap(&bmp, x, y);
}
}
}
}
break;
}
}
void gdiplus_container::draw_borders( litehtml::uint_ptr hdc, const litehtml::css_borders& borders, const litehtml::position& draw_pos )
{
apply_clip((HDC) hdc);
// draw left border
if(borders.left.width.val() != 0 && borders.left.style > litehtml::border_style_hidden)
{
HPEN pen = CreatePen(PS_SOLID, 1, RGB(borders.left.color.red, borders.left.color.green, borders.left.color.blue));
HPEN oldPen = (HPEN) SelectObject((HDC) hdc, pen);
for(int x = 0; x < borders.left.width.val(); x++)
{
MoveToEx((HDC) hdc, draw_pos.left() + x, draw_pos.top(), NULL);
LineTo((HDC) hdc, draw_pos.left() + x, draw_pos.bottom());
}
SelectObject((HDC) hdc, oldPen);
DeleteObject(pen);
}
// draw right border
if(borders.right.width.val() != 0 && borders.right.style > litehtml::border_style_hidden)
{
HPEN pen = CreatePen(PS_SOLID, 1, RGB(borders.right.color.red, borders.right.color.green, borders.right.color.blue));
HPEN oldPen = (HPEN) SelectObject((HDC) hdc, pen);
for(int x = 0; x < borders.right.width.val(); x++)
{
MoveToEx((HDC) hdc, draw_pos.right() - x - 1, draw_pos.top(), NULL);
LineTo((HDC) hdc, draw_pos.right() - x - 1, draw_pos.bottom());
}
SelectObject((HDC) hdc, oldPen);
DeleteObject(pen);
}
// draw top border
if(borders.top.width.val() != 0 && borders.top.style > litehtml::border_style_hidden)
{
HPEN pen = CreatePen(PS_SOLID, 1, RGB(borders.top.color.red, borders.top.color.green, borders.top.color.blue));
HPEN oldPen = (HPEN) SelectObject((HDC) hdc, pen);
for(int y = 0; y < borders.top.width.val(); y++)
{
MoveToEx((HDC) hdc, draw_pos.left(), draw_pos.top() + y, NULL);
LineTo((HDC) hdc, draw_pos.right(), draw_pos.top() + y);
}
SelectObject((HDC) hdc, oldPen);
DeleteObject(pen);
}
// draw bottom border
if(borders.bottom.width.val() != 0 && borders.bottom.style > litehtml::border_style_hidden)
{
HPEN pen = CreatePen(PS_SOLID, 1, RGB(borders.bottom.color.red, borders.bottom.color.green, borders.bottom.color.blue));
HPEN oldPen = (HPEN) SelectObject((HDC) hdc, pen);
for(int y = 0; y < borders.bottom.width.val(); y++)
{
MoveToEx((HDC) hdc, draw_pos.left(), draw_pos.bottom() - y - 1, NULL);
LineTo((HDC) hdc, draw_pos.right(), draw_pos.bottom() - y - 1);
}
SelectObject((HDC) hdc, oldPen);
DeleteObject(pen);
}
release_clip((HDC) hdc);
}
