diff options
Diffstat (limited to 'libs/litehtml/containers/windows/cairo/windows_container.cpp')
| -rw-r--r-- | libs/litehtml/containers/windows/cairo/windows_container.cpp | 194 |
1 files changed, 194 insertions, 0 deletions
diff --git a/libs/litehtml/containers/windows/cairo/windows_container.cpp b/libs/litehtml/containers/windows/cairo/windows_container.cpp new file mode 100644 index 0000000000..e19ad337e7 --- /dev/null +++ b/libs/litehtml/containers/windows/cairo/windows_container.cpp @@ -0,0 +1,194 @@ +#include "windows_container.h" +#define _USE_MATH_DEFINES +#include <math.h> +#include "cairo_font.h" +#include <strsafe.h> + +windows_container::windows_container(void) +{ + m_temp_surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, 2, 2); + m_temp_cr = cairo_create(m_temp_surface); + m_font_link = NULL; + CoCreateInstance(CLSID_CMultiLanguage, NULL, CLSCTX_ALL, IID_IMLangFontLink2, (void**) &m_font_link); +} + +windows_container::~windows_container(void) +{ + clear_images(); + if(m_font_link) + { + m_font_link->Release(); + } + cairo_surface_destroy(m_temp_surface); + cairo_destroy(m_temp_cr); +} + +litehtml::uint_ptr windows_container::create_font( const char* faceName, int size, int weight, litehtml::font_style italic, unsigned int decoration, litehtml::font_metrics* fm ) +{ + std::wstring fnt_name = L"sans-serif"; + + litehtml::string_vector fonts; + litehtml::split_string(faceName, fonts, ","); + if(!fonts.empty()) + { + litehtml::trim(fonts[0]); + fnt_name = cairo_font::utf8_to_wchar(fonts[0]); + if (fnt_name.front() == L'"' || fnt_name.front() == L'\'') + { + fnt_name.erase(0, 1); + } + if (fnt_name.back() == L'"' || fnt_name.back() == L'\'') + { + fnt_name.erase(fnt_name.length() - 1, 1); + } + } + + cairo_font* fnt = new cairo_font( m_font_link, + fnt_name.c_str(), + size, + weight, + (italic == litehtml::font_style_italic) ? TRUE : FALSE, + (decoration & litehtml::font_decoration_linethrough) ? TRUE : FALSE, + (decoration & litehtml::font_decoration_underline) ? TRUE : FALSE); + + cairo_save(m_temp_cr); + fnt->load_metrics(m_temp_cr); + + if(fm) + { + fm->ascent = fnt->metrics().ascent; + fm->descent = fnt->metrics().descent; + fm->height = fnt->metrics().height; + fm->x_height = fnt->metrics().x_height; + if(italic == litehtml::font_style_italic || decoration) + { + fm->draw_spaces = true; + } else + { + fm->draw_spaces = false; + } + } + + cairo_restore(m_temp_cr); + + return (litehtml::uint_ptr) fnt; +} + +void windows_container::delete_font( litehtml::uint_ptr hFont ) +{ + cairo_font* fnt = (cairo_font*) hFont; + if(fnt) + { + delete fnt; + } +} + +int windows_container::text_width( const char* text, litehtml::uint_ptr hFont ) +{ + cairo_font* fnt = (cairo_font*) hFont; + + cairo_save(m_temp_cr); + int ret = fnt->text_width(m_temp_cr, text); + cairo_restore(m_temp_cr); + return ret; +} + +void windows_container::draw_text( litehtml::uint_ptr hdc, const char* 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); + } +} + +litehtml::string windows_container::resolve_color(const litehtml::string& color) const +{ + struct custom_color + { + const char* name; + int color_index; + }; + + static custom_color colors[] = { + { "ActiveBorder", COLOR_ACTIVEBORDER}, + { "ActiveCaption", COLOR_ACTIVECAPTION}, + { "AppWorkspace", COLOR_APPWORKSPACE }, + { "Background", COLOR_BACKGROUND }, + { "ButtonFace", COLOR_BTNFACE }, + { "ButtonHighlight", COLOR_BTNHIGHLIGHT }, + { "ButtonShadow", COLOR_BTNSHADOW }, + { "ButtonText", COLOR_BTNTEXT }, + { "CaptionText", COLOR_CAPTIONTEXT }, + { "GrayText", COLOR_GRAYTEXT }, + { "Highlight", COLOR_HIGHLIGHT }, + { "HighlightText", COLOR_HIGHLIGHTTEXT }, + { "InactiveBorder", COLOR_INACTIVEBORDER }, + { "InactiveCaption", COLOR_INACTIVECAPTION }, + { "InactiveCaptionText", COLOR_INACTIVECAPTIONTEXT }, + { "InfoBackground", COLOR_INFOBK }, + { "InfoText", COLOR_INFOTEXT }, + { "Menu", COLOR_MENU }, + { "MenuText", COLOR_MENUTEXT }, + { "Scrollbar", COLOR_SCROLLBAR }, + { "ThreeDDarkShadow", COLOR_3DDKSHADOW }, + { "ThreeDFace", COLOR_3DFACE }, + { "ThreeDHighlight", COLOR_3DHILIGHT }, + { "ThreeDLightShadow", COLOR_3DLIGHT }, + { "ThreeDShadow", COLOR_3DSHADOW }, + { "Window", COLOR_WINDOW }, + { "WindowFrame", COLOR_WINDOWFRAME }, + { "WindowText", COLOR_WINDOWTEXT } + }; + + for (auto& clr : colors) + { + if (!litehtml::t_strcasecmp(clr.name, color.c_str())) + { + char str_clr[20]; + DWORD rgb_color = GetSysColor(clr.color_index); + StringCchPrintfA(str_clr, 20, "#%02X%02X%02X", GetRValue(rgb_color), GetGValue(rgb_color), GetBValue(rgb_color)); + return std::move(litehtml::string(str_clr)); + } + } + return std::move(litehtml::string()); +} + +cairo_surface_t* windows_container::get_image(const std::string& url) +{ + return nullptr; +} + +double windows_container::get_screen_dpi() const +{ + HDC hdc = GetDC(NULL); + int ret = GetDeviceCaps(hdc, LOGPIXELSX); + ReleaseDC(NULL, hdc); + return ret; +} + +int windows_container::get_screen_width() const +{ + HDC hdc = GetDC(NULL); + int ret = GetDeviceCaps(hdc, HORZRES); + ReleaseDC(NULL, hdc); + return ret; +} +int windows_container::get_screen_height() const +{ + HDC hdc = GetDC(NULL); + int ret = GetDeviceCaps(hdc, VERTRES); + ReleaseDC(NULL, hdc); + return ret; +} |