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// Copyright (c) 2008 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 "config.h"
#include "NativeImageSkia.h"
#include "PlatformCursor.h"
#undef LOG
#include "base/gfx/gdi_util.h"
#include "base/logging.h"
#include "skia/include/SkBitmap.h"
#include "webkit/glue/webcursor.h"
#include "webkit/glue/webkit_resources.h"
using WebCore::PlatformCursor;
static LPCWSTR ToCursorID(PlatformCursor::Type type) {
switch (type) {
case PlatformCursor::typePointer:
return IDC_ARROW;
case PlatformCursor::typeCross:
return IDC_CROSS;
case PlatformCursor::typeHand:
return IDC_HAND;
case PlatformCursor::typeIBeam:
return IDC_IBEAM;
case PlatformCursor::typeWait:
return IDC_WAIT;
case PlatformCursor::typeHelp:
return IDC_HELP;
case PlatformCursor::typeEastResize:
return IDC_SIZEWE;
case PlatformCursor::typeNorthResize:
return IDC_SIZENS;
case PlatformCursor::typeNorthEastResize:
return IDC_SIZENESW;
case PlatformCursor::typeNorthWestResize:
return IDC_SIZENWSE;
case PlatformCursor::typeSouthResize:
return IDC_SIZENS;
case PlatformCursor::typeSouthEastResize:
return IDC_SIZENWSE;
case PlatformCursor::typeSouthWestResize:
return IDC_SIZENESW;
case PlatformCursor::typeWestResize:
return IDC_SIZEWE;
case PlatformCursor::typeNorthSouthResize:
return IDC_SIZENS;
case PlatformCursor::typeEastWestResize:
return IDC_SIZEWE;
case PlatformCursor::typeNorthEastSouthWestResize:
return IDC_SIZENESW;
case PlatformCursor::typeNorthWestSouthEastResize:
return IDC_SIZENWSE;
case PlatformCursor::typeColumnResize:
return MAKEINTRESOURCE(IDC_COLRESIZE);
case PlatformCursor::typeRowResize:
return MAKEINTRESOURCE(IDC_ROWRESIZE);
case PlatformCursor::typeMiddlePanning:
return MAKEINTRESOURCE(IDC_PAN_MIDDLE);
case PlatformCursor::typeEastPanning:
return MAKEINTRESOURCE(IDC_PAN_EAST);
case PlatformCursor::typeNorthPanning:
return MAKEINTRESOURCE(IDC_PAN_NORTH);
case PlatformCursor::typeNorthEastPanning:
return MAKEINTRESOURCE(IDC_PAN_NORTH_EAST);
case PlatformCursor::typeNorthWestPanning:
return MAKEINTRESOURCE(IDC_PAN_NORTH_WEST);
case PlatformCursor::typeSouthPanning:
return MAKEINTRESOURCE(IDC_PAN_SOUTH);
case PlatformCursor::typeSouthEastPanning:
return MAKEINTRESOURCE(IDC_PAN_SOUTH_EAST);
case PlatformCursor::typeSouthWestPanning:
return MAKEINTRESOURCE(IDC_PAN_SOUTH_WEST);
case PlatformCursor::typeWestPanning:
return MAKEINTRESOURCE(IDC_PAN_WEST);
case PlatformCursor::typeMove:
return IDC_SIZEALL;
case PlatformCursor::typeVerticalText:
return MAKEINTRESOURCE(IDC_VERTICALTEXT);
case PlatformCursor::typeCell:
return MAKEINTRESOURCE(IDC_CELL);
case PlatformCursor::typeContextMenu:
return MAKEINTRESOURCE(IDC_ARROW);
case PlatformCursor::typeAlias:
return MAKEINTRESOURCE(IDC_ALIAS);
case PlatformCursor::typeProgress:
return IDC_APPSTARTING;
case PlatformCursor::typeNoDrop:
return IDC_NO;
case PlatformCursor::typeCopy:
return MAKEINTRESOURCE(IDC_COPYCUR);
case PlatformCursor::typeNone:
return IDC_ARROW;
case PlatformCursor::typeNotAllowed:
return IDC_NO;
case PlatformCursor::typeZoomIn:
return MAKEINTRESOURCE(IDC_ZOOMIN);
case PlatformCursor::typeZoomOut:
return MAKEINTRESOURCE(IDC_ZOOMOUT);
}
NOTREACHED();
return NULL;
}
static bool IsSystemCursorID(LPCWSTR cursor_id) {
return cursor_id >= IDC_ARROW; // See WinUser.h
}
static PlatformCursor::Type ToPlatformCursorType(HCURSOR cursor) {
static struct {
HCURSOR cursor;
PlatformCursor::Type type;
} kStandardCursors[] = {
{ LoadCursor(NULL, IDC_ARROW), PlatformCursor::typePointer },
{ LoadCursor(NULL, IDC_IBEAM), PlatformCursor::typeIBeam },
{ LoadCursor(NULL, IDC_WAIT), PlatformCursor::typeWait },
{ LoadCursor(NULL, IDC_CROSS), PlatformCursor::typeCross },
{ LoadCursor(NULL, IDC_SIZENWSE), PlatformCursor::typeNorthWestResize },
{ LoadCursor(NULL, IDC_SIZENESW), PlatformCursor::typeNorthEastResize },
{ LoadCursor(NULL, IDC_SIZEWE), PlatformCursor::typeEastWestResize },
{ LoadCursor(NULL, IDC_SIZENS), PlatformCursor::typeNorthSouthResize },
{ LoadCursor(NULL, IDC_SIZEALL), PlatformCursor::typeMove },
{ LoadCursor(NULL, IDC_NO), PlatformCursor::typeNotAllowed },
{ LoadCursor(NULL, IDC_HAND), PlatformCursor::typeHand },
{ LoadCursor(NULL, IDC_APPSTARTING), PlatformCursor::typeProgress },
{ LoadCursor(NULL, IDC_HELP), PlatformCursor::typeHelp },
};
for (int i = 0; i < arraysize(kStandardCursors); i++) {
if (cursor == kStandardCursors[i].cursor)
return kStandardCursors[i].type;
}
return PlatformCursor::typePointer;
}
HCURSOR WebCursor::GetCursor(HINSTANCE module_handle) const {
if (IsCustom())
return NULL;
LPCWSTR cursor_id = ToCursorID(static_cast<PlatformCursor::Type>(type_));
if (IsSystemCursorID(cursor_id))
module_handle = NULL;
return LoadCursor(module_handle, cursor_id);
}
HCURSOR WebCursor::GetCustomCursor() const {
if (!IsCustom())
return NULL;
BITMAPINFO cursor_bitmap_info = {0};
gfx::CreateBitmapHeader(
custom_size_.width(), custom_size_.height(),
reinterpret_cast<BITMAPINFOHEADER*>(&cursor_bitmap_info));
HDC dc = GetDC(0);
HDC workingDC = CreateCompatibleDC(dc);
HBITMAP bitmap_handle = CreateDIBSection(
dc, &cursor_bitmap_info, DIB_RGB_COLORS, 0, 0, 0);
SetDIBits(
0, bitmap_handle, 0, custom_size_.height(), &custom_data_[0],
&cursor_bitmap_info, DIB_RGB_COLORS);
HBITMAP old_bitmap = reinterpret_cast<HBITMAP>(
SelectObject(workingDC, bitmap_handle));
SetBkMode(workingDC, TRANSPARENT);
SelectObject(workingDC, old_bitmap);
HBITMAP mask = CreateBitmap(
custom_size_.width(), custom_size_.height(), 1, 1, NULL);
ICONINFO ii = {0};
ii.fIcon = FALSE;
ii.xHotspot = hotspot_.x();
ii.yHotspot = hotspot_.y();
ii.hbmMask = mask;
ii.hbmColor = bitmap_handle;
HCURSOR cursor_handle = CreateIconIndirect(&ii);
DeleteObject(mask);
DeleteObject(bitmap_handle);
DeleteDC(workingDC);
ReleaseDC(0, dc);
return cursor_handle;
}
void WebCursor::InitFromCursor(HCURSOR cursor) {
// TODO(iyengar) Add support for custom cursors.
*this = WebCursor(ToPlatformCursorType(cursor));
}
void WebCursor::SetCustomData(WebCore::Image* image) {
WebCore::NativeImagePtr image_ptr = image->nativeImageForCurrentFrame();
if (!image_ptr)
return;
SkAutoLockPixels bitmap_lock(*image_ptr);
custom_data_.resize(image_ptr->getSize());
memcpy(&custom_data_[0], image_ptr->getPixels(), image_ptr->getSize());
custom_size_.set_width(image_ptr->width());
custom_size_.set_height(image_ptr->height());
}
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