/**************************************************************
 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 *
 *************************************************************/

#include "precompiled_sfx2.hxx"

#include "DrawHelper.hxx"
#include "Paint.hxx"

#include <vcl/lineinfo.hxx>


namespace sfx2 { namespace sidebar {

void DrawHelper::DrawBorder (
    OutputDevice& rDevice,
    const Rectangle rBox,
    const SvBorder aBorderSize,
    const Paint& rHorizontalPaint,
    const Paint& rVerticalPaint)
{
    // Draw top line.
    DrawHorizontalLine(
        rDevice,
        rBox.Left(),
        rBox.Right(),
        rBox.Top(),
        aBorderSize.Top(),
        rHorizontalPaint);
    // Draw bottom line.
    DrawHorizontalLine(
        rDevice,
        rBox.Left()+aBorderSize.Left(),
        rBox.Right(),
        rBox.Bottom()-aBorderSize.Bottom()+1,
        aBorderSize.Bottom(),
        rHorizontalPaint);
    // Draw left line.
    DrawVerticalLine(
        rDevice,
        rBox.Top()+aBorderSize.Top(),
        rBox.Bottom(),
        rBox.Left(),
        aBorderSize.Left(),
        rVerticalPaint);
    // Draw right line.
    DrawVerticalLine(
        rDevice,
        rBox.Top()+aBorderSize.Top(),
        rBox.Bottom()-aBorderSize.Bottom(),
        rBox.Right()-aBorderSize.Right()+1,
        aBorderSize.Right(),
        rVerticalPaint);
}


void DrawHelper::DrawBevelBorder (
    OutputDevice& rDevice,
    const Rectangle rBox,
    const SvBorder aBorderSize,
    const Paint& rTopLeftPaint,
    const Paint& rCenterPaint,
    const Paint& rBottomRightPaint)
{
    // Draw top line.
    DrawHorizontalLine(
        rDevice,
        rBox.Left(),
        rBox.Right() - aBorderSize.Right(),
        rBox.Top(),
        aBorderSize.Top(),
        rTopLeftPaint);
    // Draw bottom line.
    DrawHorizontalLine(
        rDevice,
        rBox.Left()+aBorderSize.Left(),
        rBox.Right(),
        rBox.Bottom()-aBorderSize.Bottom()+1,
        aBorderSize.Bottom(),
        rBottomRightPaint);
    // Draw left line.
    DrawVerticalLine(
        rDevice,
        rBox.Top()+aBorderSize.Top(),
        rBox.Bottom() - aBorderSize.Bottom(),
        rBox.Left(),
        aBorderSize.Left(),
        rTopLeftPaint);
    // Draw right line.
    DrawVerticalLine(
        rDevice,
        rBox.Top()+aBorderSize.Top(),
        rBox.Bottom()-aBorderSize.Bottom(),
        rBox.Right()-aBorderSize.Right()+1,
        aBorderSize.Right(),
        rBottomRightPaint);
    // Draw top right corner.
    DrawVerticalLine(
        rDevice,
        rBox.Top(),
        rBox.Top()+aBorderSize.Top()-1,
        rBox.Right()-aBorderSize.Right()+1,
        aBorderSize.Right(),
        rCenterPaint);
    // Draw bottom right corner.
    DrawVerticalLine(
        rDevice,
        rBox.Bottom() - aBorderSize.Bottom()+1,
        rBox.Bottom(),
        rBox.Left(),
        aBorderSize.Left(),
        rCenterPaint);
}


void DrawHelper::DrawHorizontalLine(
    OutputDevice& rDevice,
    const sal_Int32 nLeft,
    const sal_Int32 nRight,
    const sal_Int32 nY,
    const sal_Int32 nHeight,
    const Paint& rPaint)
{
    switch (rPaint.GetType())
    {
        case Paint::NoPaint:
        default:
            break;

        case Paint::ColorPaint:
        {
            const Color aColor (rPaint.GetColor());
            rDevice.SetLineColor(aColor);
            for (sal_Int32 nYOffset=0; nYOffset<nHeight; ++nYOffset)
                rDevice.DrawLine(
                    Point(nLeft,nY+nYOffset),
                    Point(nRight,nY+nYOffset));
            break;
        }
        case Paint::GradientPaint:
            rDevice.DrawGradient(
                Rectangle(
                    nLeft,
                    nY,
                    nRight,
                    nY+nHeight-1),
                rPaint.GetGradient());
            break;
    }
}


void DrawHelper::DrawVerticalLine(
    OutputDevice& rDevice,
    const sal_Int32 nTop,
    const sal_Int32 nBottom,
    const sal_Int32 nX,
    const sal_Int32 nWidth,
    const Paint& rPaint)
{
    switch (rPaint.GetType())
    {
        case Paint::NoPaint:
        default:
            break;

        case Paint::ColorPaint:
        {
            const Color aColor (rPaint.GetColor());
            rDevice.SetLineColor(aColor);
            for (sal_Int32 nXOffset=0; nXOffset<nWidth; ++nXOffset)
                rDevice.DrawLine(
                    Point(nX+nXOffset, nTop),
                    Point(nX+nXOffset, nBottom));
            break;
        }
        case Paint::GradientPaint:
            rDevice.DrawGradient(
                Rectangle(
                    nX,
                    nTop,
                    nX+nWidth-1,
                    nBottom),
                rPaint.GetGradient());
            break;
    }
}


void DrawHelper::DrawRoundedRectangle (
    OutputDevice& rDevice,
    const Rectangle& rBox,
    const sal_Int32 nCornerRadius,
    const Color& rBorderColor,
    const Paint& rFillPaint)
{
    rDevice.SetLineColor(rBorderColor);
    switch(rFillPaint.GetType())
    {
        case Paint::NoPaint:
        default:
            rDevice.SetFillColor();
            rDevice.DrawRect(rBox, nCornerRadius, nCornerRadius);
            break;

        case Paint::ColorPaint:
            rDevice.SetFillColor(rFillPaint.GetColor());
            rDevice.DrawRect(rBox, nCornerRadius, nCornerRadius);
            break;

        case Paint::GradientPaint:
            rDevice.DrawGradient(
                rBox,
                rFillPaint.GetGradient());
            rDevice.SetFillColor();
            rDevice.DrawRect(rBox, nCornerRadius, nCornerRadius);
            break;
    }
}


} } // end of namespace sfx2::sidebar