Source code
Revision control
Copy as Markdown
Other Tools
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
#![allow(non_upper_case_globals)]
#[cfg(feature = "serde_serialization")]
extern crate serde;
#[cfg_attr(feature = "serde_serialization", macro_use)]
#[cfg(feature = "serde_serialization")]
extern crate serde_derive;
#[macro_use]
extern crate lazy_static;
extern crate libc;
extern crate winapi;
include!("types.rs");
use std::ffi::CString;
use std::ptr;
use winapi::Interface;
use winapi::shared::guiddef::REFIID;
use winapi::shared::winerror::S_OK;
use winapi::um::dwrite::DWRITE_FACTORY_TYPE;
use winapi::um::dwrite::DWRITE_FACTORY_TYPE_SHARED;
use winapi::um::dwrite::IDWriteFactory;
use winapi::um::dwrite::IDWriteRenderingParams;
use winapi::um::unknwnbase::IUnknown;
use winapi::um::winnt::LPCSTR;
pub use winapi::um::winnt::HRESULT;
mod helpers;
use helpers::ToWide;
use std::os::raw::c_void;
#[cfg(test)]
mod test;
// We still use the DWrite structs for things like metrics; re-export them
// here
pub use winapi::shared::windef::RECT;
pub use winapi::um::dcommon::DWRITE_MEASURING_MODE;
pub use winapi::um::dcommon::{
DWRITE_MEASURING_MODE_GDI_CLASSIC, DWRITE_MEASURING_MODE_GDI_NATURAL,
DWRITE_MEASURING_MODE_NATURAL,
};
pub use winapi::um::dwrite::DWRITE_FONT_METRICS as FontMetrics0;
pub use winapi::um::dwrite::DWRITE_FONT_SIMULATIONS;
pub use winapi::um::dwrite::DWRITE_GLYPH_OFFSET as GlyphOffset;
pub use winapi::um::dwrite::DWRITE_RENDERING_MODE;
pub use winapi::um::dwrite::DWRITE_TEXTURE_TYPE;
pub use winapi::um::dwrite::{DWRITE_TEXTURE_ALIASED_1x1, DWRITE_TEXTURE_CLEARTYPE_3x1};
pub use winapi::um::dwrite::{
DWRITE_FONT_SIMULATIONS_BOLD, DWRITE_FONT_SIMULATIONS_NONE, DWRITE_FONT_SIMULATIONS_OBLIQUE,
};
pub use winapi::um::dwrite::{DWRITE_GLYPH_RUN, DWRITE_MATRIX};
pub use winapi::um::dwrite::{
DWRITE_RENDERING_MODE_ALIASED, DWRITE_RENDERING_MODE_CLEARTYPE_GDI_CLASSIC,
DWRITE_RENDERING_MODE_CLEARTYPE_GDI_NATURAL, DWRITE_RENDERING_MODE_CLEARTYPE_NATURAL,
DWRITE_RENDERING_MODE_CLEARTYPE_NATURAL_SYMMETRIC, DWRITE_RENDERING_MODE_DEFAULT,
DWRITE_RENDERING_MODE_GDI_CLASSIC, DWRITE_RENDERING_MODE_GDI_NATURAL,
DWRITE_RENDERING_MODE_NATURAL, DWRITE_RENDERING_MODE_NATURAL_SYMMETRIC,
DWRITE_RENDERING_MODE_OUTLINE,
};
pub use winapi::um::dwrite_1::DWRITE_FONT_METRICS1 as FontMetrics1;
pub use winapi::um::dwrite_3::DWRITE_FONT_AXIS_VALUE;
use winapi::um::libloaderapi::{GetProcAddress, LoadLibraryW};
#[macro_use]
mod com_helpers;
mod bitmap_render_target;
pub use bitmap_render_target::BitmapRenderTarget;
mod font;
pub use font::{Font, FontMetrics, InformationalStringId};
mod font_collection;
pub use font_collection::FontCollection;
mod font_face;
pub use font_face::{FontFace, FontFaceType};
mod font_fallback;
pub use font_fallback::{FallbackResult, FontFallback};
mod font_family;
pub use font_family::FontFamily;
mod font_file;
pub use font_file::FontFile;
mod gdi_interop;
pub use gdi_interop::GdiInterop;
mod outline_builder;
pub use outline_builder::OutlineBuilder;
mod rendering_params;
pub use rendering_params::RenderingParams;
mod text_analysis_source;
pub use text_analysis_source::TextAnalysisSource;
mod glyph_run_analysis;
pub use glyph_run_analysis::GlyphRunAnalysis;
// This is an internal implementation of FontFileLoader, for our utility
// functions. We don't wrap the DWriteFontFileLoader interface and
// related things.
mod font_file_loader_impl;
// This is an implementation of `FontCollectionLoader` for client code.
mod font_collection_impl;
pub use font_collection_impl::CustomFontCollectionLoaderImpl;
// This is an implementation of `TextAnalysisSource` for client code.
mod text_analysis_source_impl;
pub use text_analysis_source_impl::{
CustomTextAnalysisSourceImpl, NumberSubstitution, TextAnalysisSourceMethods,
};
// This is an internal implementation of `GeometrySink` so that we can
// expose `IDWriteGeometrySink` in an idiomatic way.
mod geometry_sink_impl;
lazy_static! {
static ref DWRITE_FACTORY_RAW_PTR: usize = {
unsafe {
type DWriteCreateFactoryType =
extern "system" fn(DWRITE_FACTORY_TYPE, REFIID, *mut *mut IUnknown) -> HRESULT;
let dwrite_dll = LoadLibraryW("dwrite.dll".to_wide_null().as_ptr());
assert!(!dwrite_dll.is_null());
let create_factory_name = CString::new("DWriteCreateFactory").unwrap();
let dwrite_create_factory_ptr =
GetProcAddress(dwrite_dll, create_factory_name.as_ptr() as LPCSTR);
assert!(!dwrite_create_factory_ptr.is_null());
let dwrite_create_factory = mem::transmute::<*const c_void, DWriteCreateFactoryType>(
dwrite_create_factory_ptr as *const _,
);
let mut factory: *mut IDWriteFactory = ptr::null_mut();
let hr = dwrite_create_factory(
DWRITE_FACTORY_TYPE_SHARED,
&IDWriteFactory::uuidof(),
&mut factory as *mut *mut IDWriteFactory as *mut *mut IUnknown,
);
assert!(hr == S_OK);
factory as usize
}
};
static ref DEFAULT_DWRITE_RENDERING_PARAMS_RAW_PTR: usize = {
unsafe {
let mut default_rendering_params: *mut IDWriteRenderingParams = ptr::null_mut();
let hr = (*DWriteFactory()).CreateRenderingParams(&mut default_rendering_params);
assert!(hr == S_OK);
default_rendering_params as usize
}
};
} // end lazy static
// FIXME vlad would be nice to return, say, FactoryPtr<IDWriteFactory>
// that has a DerefMut impl, so that we can write
// DWriteFactory().SomeOperation() as opposed to
// (*DWriteFactory()).SomeOperation()
#[allow(non_snake_case)]
fn DWriteFactory() -> *mut IDWriteFactory {
(*DWRITE_FACTORY_RAW_PTR) as *mut IDWriteFactory
}
#[allow(non_snake_case)]
fn DefaultDWriteRenderParams() -> *mut IDWriteRenderingParams {
(*DEFAULT_DWRITE_RENDERING_PARAMS_RAW_PTR) as *mut IDWriteRenderingParams
}