/**************************************************************
 * 
 * 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 "TitleBar.hxx"
#include "Paint.hxx"

#include <tools/svborder.hxx>
#include <vcl/gradient.hxx>
#include <vcl/lineinfo.hxx>

ToolbarValue::~ToolbarValue (void) {}

namespace
{
    const static sal_Int32 gnLeftIconSpace (3);
    const static sal_Int32 gnRightIconSpace (3);
}

namespace sfx2 { namespace sidebar {

TitleBar::TitleBar (
    const ::rtl::OUString& rsTitle,
    Window* pParentWindow,
    const sidebar::Paint& rInitialBackgroundPaint)
    : Window(pParentWindow),
      maToolBox(this),
      msTitle(rsTitle),
      maIcon()
{
    SetBackground(rInitialBackgroundPaint.GetWallpaper());
    
    maToolBox.SetSelectHdl(LINK(this, TitleBar, SelectionHandler));
}




TitleBar::~TitleBar (void)
{
}




void TitleBar::SetTitle (const ::rtl::OUString& rsTitle)
{
    msTitle = rsTitle;
    Invalidate();
}




void TitleBar::SetIcon (const Image& rIcon)
{
    maIcon = rIcon;
    Invalidate();
}




void TitleBar::Paint (const Rectangle& rUpdateArea)
{
    (void)rUpdateArea;

    // Paint title bar background.
    Size aWindowSize (GetOutputSizePixel());
    Rectangle aTitleBarBox(
        0,
        0, 
        aWindowSize.Width(), 
        aWindowSize.Height()
        );

    PaintDecoration(aTitleBarBox);
    const Rectangle aTitleBox (GetTitleArea(aTitleBarBox));
    PaintTitle(aTitleBox);
    if (HasFocus())
        PaintFocus(aTitleBox);
}




void TitleBar::DataChanged (const DataChangedEvent& rEvent)
{
    (void)rEvent;
    
    SetBackground(GetBackgroundPaint().GetWallpaper());
}




void TitleBar::SetPosSizePixel (
    long nX,
    long nY,
    long nWidth,
    long nHeight,
    sal_uInt16 nFlags)
{
    Window::SetPosSizePixel(nX,nY,nWidth,nHeight,nFlags);

    // Place the toolbox.
    const sal_Int32 nToolBoxWidth (maToolBox.GetItemPosRect(0).GetWidth());
    maToolBox.SetPosSizePixel(nWidth-nToolBoxWidth,0,nToolBoxWidth,nHeight);
    maToolBox.Show();
}




ToolBox& TitleBar::GetToolBox (void)
{
    return maToolBox;
}




void TitleBar::HandleToolBoxItemClick (const sal_uInt16 nItemIndex)
{
    (void)nItemIndex;
    // Any real processing has to be done in derived class.
}




void TitleBar::PaintTitle (const Rectangle& rTitleBox)
{
    Push(PUSH_FONT | PUSH_TEXTCOLOR);

    Rectangle aTitleBox (rTitleBox);
    
    // When there is an icon then paint it at the left of the given
    // box.
    if ( !! maIcon)
    {
        DrawImage(
            Point(
                aTitleBox.Left() + gnLeftIconSpace,
                aTitleBox.Top() + (aTitleBox.GetHeight()-maIcon.GetSizePixel().Height())/2),
            maIcon);
        aTitleBox.Left() += gnLeftIconSpace + maIcon.GetSizePixel().Width() + gnRightIconSpace;
    }

    Font aFont(GetFont());
    aFont.SetWeight(WEIGHT_BOLD);
    SetFont(aFont);

    // Paint title bar text.
    SetTextColor(GetTextColor());
    DrawText(
        aTitleBox,
        msTitle,
        TEXT_DRAW_LEFT | TEXT_DRAW_VCENTER);

    Pop();
}




void TitleBar::PaintFocus (const Rectangle& rFocusBox)
{
    Push(PUSH_FONT | PUSH_TEXTCOLOR | PUSH_LINECOLOR | PUSH_FILLCOLOR);

    const Rectangle aTextBox (
        GetTextRect(
            rFocusBox,
            msTitle,
            TEXT_DRAW_LEFT | TEXT_DRAW_VCENTER));
    const Rectangle aLargerTextBox (
        aTextBox.Left() - 2,
        aTextBox.Top() - 2,
        aTextBox.Right() + 2,
        aTextBox.Bottom() + 2);

    LineInfo aDottedStyle (LINE_DASH);
    aDottedStyle.SetDashCount(0);
    aDottedStyle.SetDotCount(1);
    aDottedStyle.SetDotLen(1);
    aDottedStyle.SetDistance(1);
    
    SetFillColor();
    SetLineColor(COL_BLACK);
    DrawPolyLine(Polygon(aLargerTextBox), aDottedStyle);

    Pop();
}




IMPL_LINK(TitleBar, SelectionHandler, ToolBox*, pToolBox)
{
    (void)pToolBox;
    OSL_ASSERT(&maToolBox==pToolBox);
    const sal_uInt16 nItemId (maToolBox.GetHighlightItemId());

    HandleToolBoxItemClick(nItemId);
    
    return sal_True;
}

} } // end of namespace sfx2::sidebar