sd/source/ui/slidesorter/view/SlsPageObjectLayouter.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include <view/SlsPageObjectLayouter.hxx>
  21
  22 #include <model/SlsPageDescriptor.hxx>
  23 #include <view/SlsFontProvider.hxx>
  24 #include <view/SlsTheme.hxx>
  25 #include <tools/IconCache.hxx>
  26 #include <Window.hxx>
  27
  28 #include <bitmaps.hlst>
  29 #include <osl/diagnose.h>
  30
  31 namespace sd { namespace slidesorter { namespace view {
  32
  33 namespace {
  34 const static sal_Int32 gnLeftPageNumberOffset = 2;
  35 const static sal_Int32 gnRightPageNumberOffset = 5;
  36 const static sal_Int32 gnOuterBorderWidth = 5;
  37 const static sal_Int32 gnInfoAreaMinWidth = 26;
  38 }
  39
  40 PageObjectLayouter::PageObjectLayouter (
  41     const Size& rPageObjectWindowSize,
  42     const Size& rPageSize,
  43     sd::Window *pWindow,
  44     const sal_Int32 nPageCount)
  45     : mpWindow(pWindow),
  46       maPageObjectBoundingBox(),
  47       maPageNumberAreaBoundingBox(),
  48       maPreviewBoundingBox(),
  49       maTransitionEffectBoundingBox(),
  50       maTransitionEffectIcon(IconCache::Instance().GetIcon(BMP_FADE_EFFECT_INDICATOR)),
  51       maCustomAnimationEffectIcon(IconCache::Instance().GetIcon(BMP_CUSTOM_ANIMATION_INDICATOR)),
  52       mpPageNumberFont(Theme::GetFont(Theme::Font_PageNumber, *pWindow))
  53 {
  54     const Size aPageNumberAreaSize (GetPageNumberAreaSize(nPageCount));
  55
  56     const int nMaximumBorderWidth (gnOuterBorderWidth);
  57     const int nFocusIndicatorWidth (Theme_FocusIndicatorWidth);
  58
  59     Size aPageObjectSize(rPageObjectWindowSize.Width(), rPageObjectWindowSize.Height());
  60     maPreviewBoundingBox = CalculatePreviewBoundingBox(
  61         aPageObjectSize,
  62         Size(rPageSize.Width(), rPageSize.Height()),
  63         aPageNumberAreaSize.Width(),
  64         nFocusIndicatorWidth);
  65     maFocusIndicatorBoundingBox = ::tools::Rectangle(Point(0,0), aPageObjectSize);
  66     maPageObjectBoundingBox = ::tools::Rectangle(
  67         Point(
  68             nFocusIndicatorWidth,
  69             nFocusIndicatorWidth),
  70         Size(
  71             aPageObjectSize.Width()-2*nFocusIndicatorWidth,
  72             aPageObjectSize.Height()-2*nFocusIndicatorWidth));
  73
  74     maPageNumberAreaBoundingBox = ::tools::Rectangle(
  75         Point(
  76             std::max(gnLeftPageNumberOffset,
  77                 sal_Int32(maPreviewBoundingBox.Left()
  78                 - gnRightPageNumberOffset
  79                 - aPageNumberAreaSize.Width())),
  80             nMaximumBorderWidth),
  81         aPageNumberAreaSize);
  82
  83     const Size aIconSize (maTransitionEffectIcon.GetSizePixel());
  84     maTransitionEffectBoundingBox = ::tools::Rectangle(
  85         Point(
  86             (maPreviewBoundingBox.Left() - 2*aIconSize.Width()) / 2,
  87             maPreviewBoundingBox.Bottom() - aIconSize.Height()),
  88         aIconSize);
  89     maCustomAnimationEffectBoundingBox = ::tools::Rectangle(
  90         Point(
  91             (maPreviewBoundingBox.Left() - 2*aIconSize.Width()) / 2,
  92             maPreviewBoundingBox.Bottom() - 2*aIconSize.Height()),
  93         aIconSize);
  94 }
  95
  96 PageObjectLayouter::~PageObjectLayouter()
  97 {
  98 }
  99
 100 ::tools::Rectangle PageObjectLayouter::CalculatePreviewBoundingBox (
 101     Size& rPageObjectSize,
 102     const Size& rPageSize,
 103     const sal_Int32 nPageNumberAreaWidth,
 104     const sal_Int32 nFocusIndicatorWidth)
 105 {
 106     const sal_Int32 nIconWidth (maTransitionEffectIcon.GetSizePixel().Width());
 107     const sal_Int32 nLeftAreaWidth (
 108         ::std::max(
 109             gnInfoAreaMinWidth,
 110             gnRightPageNumberOffset
 111                 + ::std::max(
 112                     nPageNumberAreaWidth,
 113                     nIconWidth)));
 114     sal_Int32 nPreviewWidth;
 115     sal_Int32 nPreviewHeight;
 116     const double nPageAspectRatio (double(rPageSize.Width()) / double(rPageSize.Height()));
 117     if (rPageObjectSize.Height() == 0)
 118     {
 119         // Calculate height so that the preview fills the available
 120         // horizontal space completely while observing the aspect ratio of
 121         // the preview.
 122         nPreviewWidth = rPageObjectSize.Width()
 123             - nLeftAreaWidth - gnOuterBorderWidth - 2*nFocusIndicatorWidth - 1;
 124         nPreviewHeight = ::basegfx::fround(nPreviewWidth / nPageAspectRatio);
 125         rPageObjectSize.setHeight(nPreviewHeight + 2*gnOuterBorderWidth + 2*nFocusIndicatorWidth + 1);
 126     }
 127     else if (rPageObjectSize.Width() == 0)
 128     {
 129         // Calculate the width of the page object so that the preview fills
 130         // the available vertical space completely while observing the
 131         // aspect ratio of the preview.
 132         nPreviewHeight = rPageObjectSize.Height() - 2*gnOuterBorderWidth - 2*nFocusIndicatorWidth - 1;
 133         nPreviewWidth = ::basegfx::fround(nPreviewHeight * nPageAspectRatio);
 134         rPageObjectSize.setWidth(nPreviewWidth
 135             + nLeftAreaWidth + gnOuterBorderWidth + 2*nFocusIndicatorWidth + 1);
 136
 137     }
 138     else
 139     {
 140         // The size of the page object is given.  Calculate the size of the
 141         // preview.
 142         nPreviewWidth = rPageObjectSize.Width()
 143             - nLeftAreaWidth - gnOuterBorderWidth - 2*nFocusIndicatorWidth - 1;
 144         nPreviewHeight = rPageObjectSize.Height()
 145             - gnOuterBorderWidth - 2*nFocusIndicatorWidth - 1;
 146         if (double(nPreviewWidth)/double(nPreviewHeight) > nPageAspectRatio)
 147             nPreviewWidth = ::basegfx::fround(nPreviewHeight * nPageAspectRatio);
 148         else
 149             nPreviewHeight = ::basegfx::fround(nPreviewWidth / nPageAspectRatio);
 150     }
 151     // When the preview does not fill the available space completely then
 152     // place it flush right and vertically centered.
 153     const int nLeft (rPageObjectSize.Width()
 154         - gnOuterBorderWidth - nPreviewWidth - nFocusIndicatorWidth - 1);
 155     const int nTop ((rPageObjectSize.Height() - nPreviewHeight)/2);
 156     return ::tools::Rectangle(
 157         nLeft,
 158         nTop,
 159         nLeft + nPreviewWidth,
 160         nTop + nPreviewHeight);
 161 }
 162
 163 ::tools::Rectangle PageObjectLayouter::GetBoundingBox (
 164     const model::SharedPageDescriptor& rpPageDescriptor,
 165     const Part ePart,
 166     const CoordinateSystem eCoordinateSystem,
 167     bool bIgnoreLocation)
 168 {
 169     OSL_ASSERT(rpPageDescriptor);
 170     Point aLocation(0,0);
 171     if (rpPageDescriptor)
 172         aLocation = rpPageDescriptor->GetLocation( bIgnoreLocation );
 173     return GetBoundingBox(aLocation, ePart, eCoordinateSystem);
 174 }
 175
 176 ::tools::Rectangle PageObjectLayouter::GetBoundingBox (
 177     const Point& rPageObjectLocation,
 178     const Part ePart,
 179     const CoordinateSystem eCoordinateSystem)
 180 {
 181     ::tools::Rectangle aBoundingBox;
 182     switch (ePart)
 183     {
 184         case Part::FocusIndicator:
 185             aBoundingBox = maFocusIndicatorBoundingBox;
 186             break;
 187
 188         case Part::PageObject:
 189             aBoundingBox = maPageObjectBoundingBox;
 190             break;
 191
 192         case Part::Preview:
 193             aBoundingBox = maPreviewBoundingBox;
 194             break;
 195
 196         case Part::PageNumber:
 197             aBoundingBox = maPageNumberAreaBoundingBox;
 198             break;
 199
 200         case Part::TransitionEffectIndicator:
 201             aBoundingBox = maTransitionEffectBoundingBox;
 202             break;
 203         case Part::CustomAnimationEffectIndicator:
 204             aBoundingBox = maCustomAnimationEffectBoundingBox;
 205             break;
 206     }
 207
 208     // Adapt coordinates to the requested coordinate system.
 209     Point aLocation (rPageObjectLocation);
 210     if (eCoordinateSystem == WindowCoordinateSystem)
 211         aLocation += mpWindow->GetMapMode().GetOrigin();
 212
 213     return ::tools::Rectangle(
 214         aBoundingBox.TopLeft() + aLocation,
 215         aBoundingBox.BottomRight() + aLocation);
 216 }
 217
 218 Size PageObjectLayouter::GetPreviewSize ()
 219 {
 220     return GetBoundingBox(Point(0,0), PageObjectLayouter::Part::Preview,
 221                           WindowCoordinateSystem).GetSize();
 222 }
 223
 224 Size PageObjectLayouter::GetGridMaxSize()
 225 {
 226     return GetBoundingBox(Point(0,0), PageObjectLayouter::Part::FocusIndicator,
 227                           WindowCoordinateSystem).GetSize();
 228 }
 229
 230 Size PageObjectLayouter::GetPageNumberAreaSize (const int nPageCount)
 231 {
 232     OSL_ASSERT(mpWindow);
 233
 234     // Set the correct font.
 235     vcl::Font aOriginalFont (mpWindow->GetFont());
 236     if (mpPageNumberFont)
 237         mpWindow->SetFont(*mpPageNumberFont);
 238
 239     OUString sPageNumberTemplate;
 240     if (nPageCount < 10)
 241         sPageNumberTemplate = "9";
 242     else if (nPageCount < 100)
 243         sPageNumberTemplate = "99";
 244     else if (nPageCount < 200)
 245         // Just for the case that 1 is narrower than 9.
 246         sPageNumberTemplate = "199";
 247     else if (nPageCount < 1000)
 248         sPageNumberTemplate = "999";
 249     else
 250         sPageNumberTemplate = "9999";
 251     // More then 9999 pages are not handled.
 252
 253     const Size aSize (
 254         mpWindow->GetTextWidth(sPageNumberTemplate),
 255         mpWindow->GetTextHeight());
 256
 257     mpWindow->SetFont(aOriginalFont);
 258
 259     return aSize;
 260 }
 261
 262 } } } // end of namespace ::sd::slidesorter::view
 263
 264 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */