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// Copyright (c) 2011 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 <stdio.h>
#include "ppapi/cpp/completion_callback.h"
#include "ppapi/cpp/graphics_2d.h"
#include "ppapi/cpp/image_data.h"
#include "ppapi/cpp/instance.h"
#include "ppapi/cpp/module.h"
#include "ppapi/cpp/rect.h"
#include "ppapi/cpp/size.h"
#include "ppapi/cpp/trusted/browser_font_trusted.h"
static void DummyCompletionCallback(void* /*user_data*/, int32_t /*result*/) {
}
class MyInstance : public pp::Instance {
public:
MyInstance(PP_Instance instance)
: pp::Instance(instance) {
}
virtual void DidChangeView(const pp::Rect& position, const pp::Rect& clip) {
if (position.size() == last_size_)
return;
last_size_ = position.size();
pp::ImageData image(this, PP_IMAGEDATAFORMAT_BGRA_PREMUL, last_size_, true);
pp::Graphics2D graphics(this, last_size_, false);
BindGraphics(graphics);
pp::BrowserFontDescription desc;
desc.set_family(PP_BROWSERFONT_TRUSTED_FAMILY_SANSSERIF);
desc.set_size(100);
pp::BrowserFont_Trusted font(this, desc);
// Draw some large, alpha blended text, including Arabic shaping.
pp::Rect text_clip(position.size()); // Use entire bounds for clip.
font.DrawTextAt(&image,
pp::BrowserFontTextRun(
"\xD9\x85\xD8\xB1\xD8\xAD\xD8\xA8\xD8\xA7\xE2\x80\x8E", true, true),
pp::Point(20, 100), 0x80008000, clip, false);
// Draw the default font names and sizes.
int y = 160;
{
pp::BrowserFontDescription desc;
pp::BrowserFont_Trusted default_font(this, desc);
default_font.DrawSimpleText(
&image, DescribeFont(default_font, "Default font"),
pp::Point(10, y), 0xFF000000);
y += 20;
}
{
pp::BrowserFontDescription desc;
desc.set_family(PP_BROWSERFONT_TRUSTED_FAMILY_SERIF);
pp::BrowserFont_Trusted serif_font(this, desc);
serif_font.DrawSimpleText(
&image, DescribeFont(serif_font, "Serif font"),
pp::Point(10, y), 0xFF000000);
y += 20;
}
{
pp::BrowserFontDescription desc;
desc.set_family(PP_BROWSERFONT_TRUSTED_FAMILY_SANSSERIF);
pp::BrowserFont_Trusted sans_serif_font(this, desc);
sans_serif_font.DrawSimpleText(
&image, DescribeFont(sans_serif_font, "Sans serif font"),
pp::Point(10, y), 0xFF000000);
y += 20;
}
{
pp::BrowserFontDescription desc;
desc.set_family(PP_BROWSERFONT_TRUSTED_FAMILY_MONOSPACE);
pp::BrowserFont_Trusted monospace_font(this, desc);
monospace_font.DrawSimpleText(
&image, DescribeFont(monospace_font, "Monospace font"),
pp::Point(10, y), 0xFF000000);
y += 20;
}
graphics.PaintImageData(image, pp::Point(0, 0));
graphics.Flush(pp::CompletionCallback(&DummyCompletionCallback, NULL));
}
private:
// Returns a string describing the given font, using the given title.
std::string DescribeFont(const pp::BrowserFont_Trusted& font,
const char* title) {
pp::BrowserFontDescription desc;
PP_BrowserFont_Trusted_Metrics metrics;
font.Describe(&desc, &metrics);
char buf[256];
sprintf(buf, "%s = %s %dpt",
title, desc.face().AsString().c_str(), desc.size());
return std::string(buf);
}
pp::Size last_size_;
};
class MyModule : public pp::Module {
public:
virtual pp::Instance* CreateInstance(PP_Instance instance) {
return new MyInstance(instance);
}
};
namespace pp {
// Factory function for your specialization of the Module object.
Module* CreateModule() {
return new MyModule();
}
} // namespace pp
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