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// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_sd.hxx"

#include "taskpane/TitleBar.hxx"

#include "ControlContainerDescriptor.hxx"
#include "tools/IconCache.hxx"
#include "AccessibleTreeNode.hxx"
#include <vcl/decoview.hxx>
#include <vcl/window.hxx>
#include <vcl/virdev.hxx>
#include <vos/mutex.hxx>
#include <vcl/svapp.hxx>
#include "sdresid.hxx"
#include <vcl/bitmap.hxx>
#include <vcl/lineinfo.hxx>
#include <vcl/bitmapex.hxx>
#include <tools/color.hxx>
#include <svx/xdash.hxx>
#include <svl/itemset.hxx>
#include <svx/xlndsit.hxx>
#include <svx/xlineit0.hxx>
#include <svx/svdobj.hxx>
#include <svx/svdpool.hxx>
#include <svtools/colorcfg.hxx>
#include <svx/xlnclit.hxx>
#include <svx/xfillit0.hxx>
#include "res_bmp.hrc"


namespace sd { namespace toolpanel {

const int TitleBar::snIndentationWidth = 16;

TitleBar::TitleBar ( ::Window* pParent, const String& rsTitle, TitleBarType eType, bool bIsExpandable)
: ::Window (pParent, WB_TABSTOP)
, TreeNode(this)
, meType(eType)
, msTitle(rsTitle)
, mbExpanded(false)
, mbFocused(false)
, mpDevice(new VirtualDevice (*this))
, mbIsExpandable (bIsExpandable)
{
    EnableMapMode (FALSE);

    SetBackground (Wallpaper());

    // Change the mouse pointer shape so that it acts as a mouse over effect.
    switch (meType)
    {
        case TBT_SUB_CONTROL_HEADLINE:
            if (mbIsExpandable)
                SetPointer (POINTER_REFHAND);
            break;
    }
}




TitleBar::~TitleBar (void)
{
}




Size TitleBar::GetPreferredSize (void)
{
    int nWidth = GetOutputSizePixel().Width();
    Rectangle aTitleBarBox (
        CalculateTitleBarBox(
            CalculateTextBoundingBox(nWidth, true),
            nWidth));

    return aTitleBarBox.GetSize();
}




sal_Int32 TitleBar::GetPreferredWidth (sal_Int32 )
{
    Rectangle aTitleBarBox (
        CalculateTitleBarBox(
            CalculateTextBoundingBox(0, true),
            0));
    return aTitleBarBox.GetWidth();
}




sal_Int32 TitleBar::GetPreferredHeight (sal_Int32 nWidth)
{
    Rectangle aTitleBarBox (
        CalculateTitleBarBox(
            CalculateTextBoundingBox(nWidth, true),
            nWidth));

    return aTitleBarBox.GetHeight();
}




bool TitleBar::IsResizable (void)
{
    return true;
}




::Window* TitleBar::GetWindow (void)
{
    return this;
}




sal_Int32 TitleBar::GetMinimumWidth (void)
{
    return 20;
}




void TitleBar::Paint (const Rectangle& rBoundingBox)
{
    mpDevice->SetMapMode(GetMapMode());
    mpDevice->SetOutputSize (GetOutputSizePixel());
    mpDevice->SetSettings(GetSettings());
    mpDevice->SetDrawMode(GetDrawMode());

    switch (meType)
    {
        case TBT_SUB_CONTROL_HEADLINE:
            PaintSubPanelHeadLineBar ();
            break;
    }

    DrawOutDev (
        Point(0,0),
        GetOutputSizePixel(),
        Point(0,0),
        GetOutputSizePixel(),
        *mpDevice);

    ::Window::Paint (rBoundingBox);
}




bool TitleBar::Expand (bool bFlag)
{
    bool bExpansionStateChanged (bFlag!=IsExpanded());
    mbExpanded = bFlag;
    Invalidate ();
    return bExpansionStateChanged;
}




bool TitleBar::IsExpanded (void) const
{
    return mbExpanded;
}


void TitleBar::SetEnabledState(bool bFlag)
{
    if(bFlag)
        Enable();
    else
        Disable();
    Invalidate ();
}




void TitleBar::GetFocus()
{
    mbFocused = true;
    Invalidate();
}




void TitleBar::LoseFocus()
{
    mbFocused = false;
    Invalidate();
}




bool TitleBar::HasExpansionIndicator (void) const
{
    bool bHasExpansionIndicator (false);
    if (mbIsExpandable)
    {
        switch (meType)
        {
            case TBT_SUB_CONTROL_HEADLINE:
                bHasExpansionIndicator = true;
                break;
        }
    }
    return bHasExpansionIndicator;
}




Image TitleBar::GetExpansionIndicator (void) const
{
    Image aIndicator;
    bool bHighContrastMode (GetSettings().GetStyleSettings().GetHighContrastMode() != 0);
    if (mbIsExpandable)
    {
        USHORT nResourceId = 0;
        switch (meType)
        {
            case TBT_SUB_CONTROL_HEADLINE:
                if (mbExpanded)
                    if (bHighContrastMode)
                        nResourceId = BMP_COLLAPSE_H;
                    else
                        nResourceId = BMP_COLLAPSE;
                else
                    if (bHighContrastMode)
                        nResourceId = BMP_EXPAND_H;
                    else
                        nResourceId = BMP_EXPAND;

                aIndicator = IconCache::Instance().GetIcon(nResourceId);
                break;
        }
    }

    return aIndicator;
}




void TitleBar::PaintSubPanelHeadLineBar (void)
{
    int nWidth (GetOutputSizePixel().Width());
    Rectangle aTextBox (CalculateTextBoundingBox (nWidth, true));

    Rectangle aTitleBarBox (CalculateTitleBarBox(aTextBox, nWidth));
    int nVerticalOffset = -aTitleBarBox.Top();
    aTitleBarBox.Top() += nVerticalOffset;
    aTitleBarBox.Bottom() += nVerticalOffset;
    aTextBox.Top() += nVerticalOffset;
    aTextBox.Bottom() += nVerticalOffset;

    PaintBackground (aTitleBarBox);
    Rectangle aFocusBox (PaintExpansionIndicator (aTextBox));
    PaintText (aTextBox);

    aFocusBox.Union (aTextBox);
    aFocusBox.Left() -= 2;
    aFocusBox.Right() += 1;
    PaintFocusIndicator (aFocusBox);
}




void TitleBar::PaintFocusIndicator (const Rectangle& rTextBox)
{
    if (mbFocused)
    {
        Rectangle aTextPixelBox (mpDevice->LogicToPixel (rTextBox));
        mpDevice->EnableMapMode (FALSE);
        Rectangle aBox (rTextBox);
        aBox.Top() -= 1;
        aBox.Bottom() += 1;

        mpDevice->SetFillColor ();

        mpDevice->DrawRect (aTextPixelBox);

        LineInfo aDottedStyle (LINE_DASH);
        aDottedStyle.SetDashCount (0);
        aDottedStyle.SetDotCount (1);
        aDottedStyle.SetDotLen (1);
        aDottedStyle.SetDistance (1);

        mpDevice->SetLineColor (COL_BLACK);
        mpDevice->DrawPolyLine (Polygon(aTextPixelBox), aDottedStyle);
        mpDevice->EnableMapMode (FALSE);
    }
    else
        HideFocus ();
}




Rectangle TitleBar::PaintExpansionIndicator (const Rectangle& rTextBox)
{
    Rectangle aExpansionIndicatorArea;

    if (HasExpansionIndicator())
    {
        Image aImage = GetExpansionIndicator();
        int nHeight (aImage.GetSizePixel().Height());
        if (nHeight > 0)
        {
            Point aPosition (
                0,
                rTextBox.Top() + (GetTextHeight() - nHeight) / 2);
            if (meType == TBT_SUB_CONTROL_HEADLINE)
                aPosition.X() += 3;
            mpDevice->DrawImage (aPosition, aImage);

            aExpansionIndicatorArea = Rectangle (
                aPosition, aImage.GetSizePixel());
        }
    }

    return aExpansionIndicatorArea;
}




void TitleBar::PaintText (const Rectangle& rTextBox)
{
    mpDevice->DrawText (rTextBox, msTitle, GetTextStyle());
}




USHORT TitleBar::GetTextStyle (void)
{
     if(IsEnabled())
     {
         return TEXT_DRAW_LEFT
             | TEXT_DRAW_TOP
             | TEXT_DRAW_MULTILINE
             | TEXT_DRAW_WORDBREAK;
     }
     else
     {
         return TEXT_DRAW_DISABLE;
     }
}



void TitleBar::PaintBackground (const Rectangle& rTitleBarBox)
{
    // Fill a slightly rounded rectangle.
    Color aFillColor (GetFillColor());
    Color aLineColor (GetLineColor());

    switch (meType)
    {
        case TBT_SUB_CONTROL_HEADLINE:
        {
            Color aColor (GetSettings().GetStyleSettings().GetDialogColor());
            if (mbExpanded)
            {
                // Make the color a little bit darker.
                aColor.SetRed(UINT8(((UINT16)aColor.GetRed()) * 8 / 10));
                aColor.SetGreen(UINT8(((UINT16)aColor.GetGreen()) * 8 / 10));
                aColor.SetBlue(UINT8(((UINT16)aColor.GetBlue()) * 8 / 10));
            }

            mpDevice->SetFillColor (aColor);
            mpDevice->SetLineColor ();
            mpDevice->DrawRect (rTitleBarBox);

            // Erase the four corner pixels to make the rectangle appear
            // rounded.
            mpDevice->SetLineColor (
                GetSettings().GetStyleSettings().GetWindowColor());
            mpDevice->DrawPixel (
                rTitleBarBox.TopLeft());
            mpDevice->DrawPixel (
                Point(rTitleBarBox.Right(), rTitleBarBox.Top()));
            mpDevice->DrawPixel (
                Point(rTitleBarBox.Left(), rTitleBarBox.Bottom()));
            mpDevice->DrawPixel (
                Point(rTitleBarBox.Right(), rTitleBarBox.Bottom()));
        }
        break;
    }
}




Rectangle TitleBar::CalculateTextBoundingBox (
    int nAvailableWidth,
    bool bEmphasizeExpanded)
{
    // Show the title of expanded controls in bold font.
    const Font& rOriginalFont (GetFont());
    Font aFont (rOriginalFont);
    if (bEmphasizeExpanded && mbExpanded)
        aFont.SetWeight (WEIGHT_BOLD);
    else
        aFont.SetWeight (WEIGHT_NORMAL);
    mpDevice->SetFont (aFont);

    // Use the natural width of the text when no width is given.
    if (nAvailableWidth == 0)
        nAvailableWidth = GetTextWidth (msTitle);

    Rectangle aTextBox (
        Point(0,0),
        Size (nAvailableWidth,
            GetSettings().GetStyleSettings().GetTitleHeight()));
    aTextBox.Top() += (aTextBox.GetHeight() - GetTextHeight()) / 2;
    if (HasExpansionIndicator())
        aTextBox.Left() += snIndentationWidth;
    else
        aTextBox.Left() += 3;
    aTextBox.Right() -= 1;

   aTextBox = mpDevice->GetTextRect (aTextBox, msTitle, GetTextStyle());

   return aTextBox;
}




Rectangle TitleBar::CalculateTitleBarBox (
    const Rectangle& rTextBox,
    int nWidth)
{
    Rectangle aTitleBarBox (rTextBox);

   switch (meType)
   {
        case TBT_SUB_CONTROL_HEADLINE:
           aTitleBarBox.Top() -= 3;
           aTitleBarBox.Bottom() += 3;
           break;

   }
    aTitleBarBox.Left() = 0;
    if (aTitleBarBox.GetWidth() < nWidth)
        aTitleBarBox.Right() = nWidth-1;

    return aTitleBarBox;
}




void TitleBar::MouseMove (const MouseEvent& )
{
}




void TitleBar::MouseButtonDown (const MouseEvent& )
{
    // Do not forward to parent window so that the mouse button handler of
    // the docking window is not invoked.
}




void TitleBar::MouseButtonUp (const MouseEvent& )
{
    // Do not forward to parent window so that the mouse button handler of
    // the docking window is not invoked.
}




void TitleBar::DataChanged (const DataChangedEvent& rEvent)
{
    ::Window::DataChanged (rEvent);

    switch (rEvent.GetType())
    {
        case DATACHANGED_SETTINGS:
            if ((rEvent.GetFlags() & SETTINGS_STYLE) == 0)
                break;
            SetSettings(Application::GetSettings());
            mpDevice.reset(new VirtualDevice (*this));

            // fall through.

        case DATACHANGED_FONTS:
        case DATACHANGED_FONTSUBSTITUTION:
        {
            const StyleSettings& rStyleSettings (GetSettings().GetStyleSettings());

            // Font.
            Font aFont = rStyleSettings.GetAppFont();
            if (IsControlFont())
                aFont.Merge(GetControlFont());
            SetZoomedPointFont(aFont);

            // Color.
            Color aColor;
            if (IsControlForeground())
                aColor = GetControlForeground();
            else
                aColor = rStyleSettings.GetButtonTextColor();
            SetTextColor(aColor);
            SetTextFillColor();

            Resize();
            Invalidate();
        }
        break;
    }
}




String TitleBar::GetTitle (void) const
{
    return msTitle;
}




::com::sun::star::uno::Reference<
    ::com::sun::star::accessibility::XAccessible > TitleBar::CreateAccessibleObject (
        const ::com::sun::star::uno::Reference<
        ::com::sun::star::accessibility::XAccessible>& )
{
    return new ::accessibility::AccessibleTreeNode(
        *this,
        GetTitle(),
        GetTitle(),
        ::com::sun::star::accessibility::AccessibleRole::LABEL);
}


} } // end of namespace ::sd::toolpanel