/*

 * Copyright (C) 2006 Apple Computer, Inc.  All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 2. 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.

 *

 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``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 APPLE COMPUTER, INC. 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. 

 */

#import "config.h"

#import "WebCoreTextRenderer.h"

#import "Font.h"

#import "FontData.h"

#import "GraphicsContext.h"

#import "IntPoint.h"

#import "TextStyle.h"

#import "WebFontCache.h"

using namespace WebCore;

void WebCoreDrawTextAtPoint(const UniChar* buffer, unsigned length, NSPoint point, NSFont* font, NSColor* textColor)

{

    NSGraphicsContext *nsContext = [NSGraphicsContext currentContext];

    CGContextRef cgContext = (CGContextRef)[nsContext graphicsPort];

    GraphicsContext graphicsContext(cgContext);    

    // Safari doesn't flip the NSGraphicsContext before calling WebKit, yet WebCore requires a flipped graphics context.

    BOOL flipped = [nsContext isFlipped];

    if (!flipped)

        CGContextScaleCTM(cgContext, 1.0f, -1.0f);

    FontPlatformData f(font);

    Font renderer(f, ![[NSGraphicsContext currentContext] isDrawingToScreen]);

    TextRun run(buffer, length);

    TextStyle style;

    style.disableRoundingHacks();

    CGFloat red, green, blue, alpha;

    [[textColor colorUsingColorSpaceName:NSDeviceRGBColorSpace] getRed:&red green:&green blue:&blue alpha:&alpha];

    graphicsContext.setFillColor(makeRGBA((int)(red * 255), (int)(green * 255), (int)(blue * 255), (int)(alpha * 255)));

    renderer.drawText(&graphicsContext, run, style, FloatPoint(point.x, (flipped ? point.y : (-1.0f * point.y))));

    if (!flipped)

        CGContextScaleCTM(cgContext, 1.0f, -1.0f);

}

float WebCoreTextFloatWidth(const UniChar* buffer, unsigned length , NSFont* font)

{

    FontPlatformData f(font);

    Font renderer(f, ![[NSGraphicsContext currentContext] isDrawingToScreen]);

    TextRun run(buffer, length);

    TextStyle style;

    style.disableRoundingHacks();

    return renderer.floatWidth(run, style);

}

static bool gShouldUseFontSmoothing = true;

void WebCoreSetShouldUseFontSmoothing(bool smooth)

{

    gShouldUseFontSmoothing = smooth;

}

bool WebCoreShouldUseFontSmoothing()

{

    return gShouldUseFontSmoothing;

}

void WebCoreSetAlwaysUseATSU(bool useATSU)

{

    Font::setCodePath(useATSU ? Font::Complex : Font::Auto);

}

NSFont* WebCoreFindFont(NSString* familyName, NSFontTraitMask traits, int size)

{

    return [WebFontCache fontWithFamily:familyName traits:traits size:size];

}