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// Copyright (c) 2010 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ppapi/cpp/dev/font_dev.h"
#include <algorithm>
#include "ppapi/cpp/common.h"
#include "ppapi/cpp/image_data.h"
#include "ppapi/cpp/module.h"
#include "ppapi/cpp/point.h"
#include "ppapi/cpp/rect.h"
#include "ppapi/cpp/module_impl.h"
namespace {
DeviceFuncs<PPB_Font_Dev> font_f(PPB_FONT_DEV_INTERFACE);
} // namespace
namespace pp {
// FontDescription_Dev ---------------------------------------------------------
FontDescription_Dev::FontDescription_Dev() {
pp_font_description_.face = face_.pp_var();
set_family(PP_FONTFAMILY_DEFAULT);
set_size(0);
set_weight(PP_FONTWEIGHT_NORMAL);
set_italic(false);
set_small_caps(false);
set_letter_spacing(0);
set_word_spacing(0);
}
FontDescription_Dev::FontDescription_Dev(const FontDescription_Dev& other) {
set_face(other.face());
set_family(other.family());
set_size(other.size());
set_weight(other.weight());
set_italic(other.italic());
set_small_caps(other.small_caps());
set_letter_spacing(other.letter_spacing());
set_word_spacing(other.word_spacing());
}
FontDescription_Dev::~FontDescription_Dev() {
}
FontDescription_Dev& FontDescription_Dev::operator=(
const FontDescription_Dev& other) {
pp_font_description_ = other.pp_font_description_;
// Be careful about the refcount of the string, the copy that operator= made
// above didn't copy a ref.
pp_font_description_.face = PP_MakeUndefined();
set_face(other.face());
return *this;
}
// TextRun_Dev -----------------------------------------------------------------
TextRun_Dev::TextRun_Dev() {
pp_text_run_.text = text_.pp_var();
pp_text_run_.rtl = PP_FALSE;
pp_text_run_.override_direction = PP_FALSE;
}
TextRun_Dev::TextRun_Dev(const std::string& text,
bool rtl,
bool override_direction)
: text_(text) {
pp_text_run_.text = text_.pp_var();
pp_text_run_.rtl = BoolToPPBool(rtl);
pp_text_run_.override_direction = BoolToPPBool(override_direction);
}
TextRun_Dev::TextRun_Dev(const TextRun_Dev& other) : text_(other.text_) {
pp_text_run_.text = text_.pp_var();
pp_text_run_.rtl = other.pp_text_run_.rtl;
pp_text_run_.override_direction = other.pp_text_run_.override_direction;
}
TextRun_Dev::~TextRun_Dev() {
}
TextRun_Dev& TextRun_Dev::operator=(const TextRun_Dev& other) {
pp_text_run_ = other.pp_text_run_;
text_ = other.text_;
pp_text_run_.text = text_.pp_var();
return *this;
}
// Font ------------------------------------------------------------------------
Font_Dev::Font_Dev(PP_Resource resource) : Resource(resource) {
}
Font_Dev::Font_Dev(const FontDescription_Dev& description) {
if (!font_f)
return;
PassRefFromConstructor(font_f->Create(
Module::Get()->pp_module(), &description.pp_font_description()));
}
Font_Dev::Font_Dev(const Font_Dev& other) : Resource(other) {
}
Font_Dev& Font_Dev::operator=(const Font_Dev& other) {
Resource::operator=(other);
return *this;
}
bool Font_Dev::Describe(FontDescription_Dev* description,
PP_FontMetrics_Dev* metrics) const {
if (!font_f)
return false;
// Be careful with ownership of the |face| string. It will come back with
// a ref of 1, which we want to assign to the |face_| member of the C++ class.
if (!font_f->Describe(pp_resource(), &description->pp_font_description_,
metrics))
return false;
description->face_ = Var(Var::PassRef(),
description->pp_font_description_.face);
return true;
}
bool Font_Dev::DrawTextAt(ImageData* dest,
const TextRun_Dev& text,
const Point& position,
uint32_t color,
const Rect& clip,
bool image_data_is_opaque) const {
if (!font_f)
return false;
return PPBoolToBool(font_f->DrawTextAt(pp_resource(),
dest->pp_resource(),
&text.pp_text_run(),
&position.pp_point(),
color,
&clip.pp_rect(),
BoolToPPBool(image_data_is_opaque)));
}
int32_t Font_Dev::MeasureText(const TextRun_Dev& text) const {
if (!font_f)
return -1;
return font_f->MeasureText(pp_resource(), &text.pp_text_run());
}
uint32_t Font_Dev::CharacterOffsetForPixel(const TextRun_Dev& text,
int32_t pixel_position) const {
if (!font_f)
return 0;
return font_f->CharacterOffsetForPixel(pp_resource(), &text.pp_text_run(),
pixel_position);
}
int32_t Font_Dev::PixelOffsetForCharacter(const TextRun_Dev& text,
uint32_t char_offset) const {
if (!font_f)
return 0;
return font_f->PixelOffsetForCharacter(pp_resource(), &text.pp_text_run(),
char_offset);
}
bool Font_Dev::DrawSimpleText(ImageData* dest,
const std::string& text,
const Point& position,
uint32_t color,
bool image_data_is_opaque) const {
return DrawTextAt(dest, TextRun_Dev(text), position, color,
Rect(dest->size()), image_data_is_opaque);
}
int32_t Font_Dev::MeasureSimpleText(const std::string& text) const {
return MeasureText(TextRun_Dev(text));
}
} // namespace pp
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