cef/include/capi/cef_image_capi.h

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Implement Views framework on Windows and Linux (issue #1749). - Add Views header files in a new include/views directory. - Add initial top-level window (CefWindow), control (CefBrowserView, CefLabelButton, CefMenuButton, CefPanel, CefScrollView, CefTextfield) and layout (CefBoxLayout, CefFlowLayout) support. See libcef/browser/views/view_impl.h comments for implementation details. - Add Views example usage in cefclient and cefsimple and Views unit tests in cef_unittests. Pass the `--use-views` command-line flag to cefclient, cefsimple and cef_unittests to run using the Views framework instead of platform APIs. For cefclient and cefsimple this will create the browser window and all related functionality using the Views framework. For cef_unittests this will run all tests (except OSR tests) in a Views-based browser window. Views- specific unit tests (`--gtest_filter=Views*`) will be run even if the the `--use-views` flag is not specified. - Pass the `--hide-frame` command-line flag to cefclient to demo a frameless Views-based browser window. - Pass the `--hide-controls` command-line flag to cefclient to demo a browser window without top controls. This also works in non-Views mode. - Pass the `--enable-high-dpi-support` command-line flag to cef_unittests on Windows to test high-DPI support on a display that supports it. - Add CefImage for reading/writing image file formats. - Add CefBrowser::DownloadImage() for downloading image URLs as a CefImage representation. This is primarily for loading favicons. - Add CefMenuModel::CreateMenuModel() and CefMenuModelDelegate for creating custom menus. This is primarily for use with CefMenuButton. - Add CefBrowser::TryCloseBrowser() helper for closing a browser. Also improve related documentation in cef_life_span_handler.h. - Rename cef_page_range_t to cef_range_t. It is now also used by CefTextfield. - Remove CefLifeSpanHandler::RunModal() which is never called. - Add draggable regions example to cefclient.
2016-01-19 21:09:01 +01:00
// Copyright (c) 2016 Marshall A. Greenblatt. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the name Chromium Embedded
// Framework nor the names of its contributors may be used to endorse
// or promote products derived from this software without specific prior
// written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// ---------------------------------------------------------------------------
//
// This file was generated by the CEF translator tool and should not edited
// by hand. See the translator.README.txt file in the tools directory for
// more information.
//
#ifndef CEF_INCLUDE_CAPI_CEF_IMAGE_CAPI_H_
#define CEF_INCLUDE_CAPI_CEF_IMAGE_CAPI_H_
#pragma once
#include "include/capi/cef_base_capi.h"
#include "include/capi/cef_values_capi.h"
#ifdef __cplusplus
extern "C" {
#endif
///
// Container for a single image represented at different scale factors. All
// image representations should be the same size in density independent pixel
// (DIP) units. For example, if the image at scale factor 1.0 is 100x100 pixels
// then the image at scale factor 2.0 should be 200x200 pixels -- both images
// will display with a DIP size of 100x100 units. The functions of this
// structure must be called on the browser process UI thread.
///
typedef struct _cef_image_t {
///
// Base structure.
///
cef_base_t base;
///
// Returns true (1) if this Image is NULL.
///
int (CEF_CALLBACK *is_empty)(struct _cef_image_t* self);
///
// Returns true (1) if this Image and |that| Image share the same underlying
// storage. Will also return true (1) if both images are NULL.
///
int (CEF_CALLBACK *is_same)(struct _cef_image_t* self,
struct _cef_image_t* that);
///
// Add a bitmap image representation for |scale_factor|. Only 32-bit RGBA/BGRA
// formats are supported. |pixel_width| and |pixel_height| are the bitmap
// representation size in pixel coordinates. |pixel_data| is the array of
// pixel data and should be |pixel_width| x |pixel_height| x 4 bytes in size.
// |color_type| and |alpha_type| values specify the pixel format.
///
int (CEF_CALLBACK *add_bitmap)(struct _cef_image_t* self, float scale_factor,
int pixel_width, int pixel_height, cef_color_type_t color_type,
cef_alpha_type_t alpha_type, const void* pixel_data,
size_t pixel_data_size);
///
// Add a PNG image representation for |scale_factor|. |png_data| is the image
// data of size |png_data_size|. Any alpha transparency in the PNG data will
// be maintained.
///
int (CEF_CALLBACK *add_png)(struct _cef_image_t* self, float scale_factor,
const void* png_data, size_t png_data_size);
///
// Create a JPEG image representation for |scale_factor|. |jpeg_data| is the
// image data of size |jpeg_data_size|. The JPEG format does not support
// transparency so the alpha byte will be set to 0xFF for all pixels.
///
int (CEF_CALLBACK *add_jpeg)(struct _cef_image_t* self, float scale_factor,
const void* jpeg_data, size_t jpeg_data_size);
///
// Returns the image width in density independent pixel (DIP) units.
///
size_t (CEF_CALLBACK *get_width)(struct _cef_image_t* self);
///
// Returns the image height in density independent pixel (DIP) units.
///
size_t (CEF_CALLBACK *get_height)(struct _cef_image_t* self);
///
// Returns true (1) if this image contains a representation for
// |scale_factor|.
///
int (CEF_CALLBACK *has_representation)(struct _cef_image_t* self,
float scale_factor);
///
// Removes the representation for |scale_factor|. Returns true (1) on success.
///
int (CEF_CALLBACK *remove_representation)(struct _cef_image_t* self,
float scale_factor);
///
// Returns information for the representation that most closely matches
// |scale_factor|. |actual_scale_factor| is the actual scale factor for the
// representation. |pixel_width| and |pixel_height| are the representation
// size in pixel coordinates. Returns true (1) on success.
///
int (CEF_CALLBACK *get_representation_info)(struct _cef_image_t* self,
float scale_factor, float* actual_scale_factor, int* pixel_width,
int* pixel_height);
///
// Returns the bitmap representation that most closely matches |scale_factor|.
// Only 32-bit RGBA/BGRA formats are supported. |color_type| and |alpha_type|
// values specify the desired output pixel format. |pixel_width| and
// |pixel_height| are the output representation size in pixel coordinates.
// Returns a cef_binary_value_t containing the pixel data on success or NULL
// on failure.
///
struct _cef_binary_value_t* (CEF_CALLBACK *get_as_bitmap)(
struct _cef_image_t* self, float scale_factor,
cef_color_type_t color_type, cef_alpha_type_t alpha_type,
int* pixel_width, int* pixel_height);
///
// Returns the PNG representation that most closely matches |scale_factor|. If
// |with_transparency| is true (1) any alpha transparency in the image will be
// represented in the resulting PNG data. |pixel_width| and |pixel_height| are
// the output representation size in pixel coordinates. Returns a
// cef_binary_value_t containing the PNG image data on success or NULL on
// failure.
///
struct _cef_binary_value_t* (CEF_CALLBACK *get_as_png)(
struct _cef_image_t* self, float scale_factor, int with_transparency,
int* pixel_width, int* pixel_height);
///
// Returns the JPEG representation that most closely matches |scale_factor|.
// |quality| determines the compression level with 0 == lowest and 100 ==
// highest. The JPEG format does not support alpha transparency and the alpha
// channel, if any, will be discarded. |pixel_width| and |pixel_height| are
// the output representation size in pixel coordinates. Returns a
// cef_binary_value_t containing the JPEG image data on success or NULL on
// failure.
///
struct _cef_binary_value_t* (CEF_CALLBACK *get_as_jpeg)(
struct _cef_image_t* self, float scale_factor, int quality,
int* pixel_width, int* pixel_height);
} cef_image_t;
///
// Create a new cef_image_t. It will initially be NULL. Use the Add*() functions
// to add representations at different scale factors.
///
CEF_EXPORT cef_image_t* cef_image_create();
#ifdef __cplusplus
}
#endif
#endif // CEF_INCLUDE_CAPI_CEF_IMAGE_CAPI_H_