The Tor Browser / file comparison
comparison: layout/xul/grid/nsGridRowGroupLayout.cpp
layout/xul/grid/nsGridRowGroupLayout.cpp
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- TOR_BUG_9701
- changeset 14
- 925c144e1f1f
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| -1:000000000000 | 0:f6f300e0fc7a |
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| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 // | |
| 7 // Eric Vaughan | |
| 8 // Netscape Communications | |
| 9 // | |
| 10 // See documentation in associated header file | |
| 11 // | |
| 12 | |
| 13 | |
| 14 /* | |
| 15 * The nsGridRowGroupLayout implements the <rows> or <columns> tag in a grid. | |
| 16 */ | |
| 17 | |
| 18 #include "nsGridRowGroupLayout.h" | |
| 19 #include "nsCOMPtr.h" | |
| 20 #include "nsIScrollableFrame.h" | |
| 21 #include "nsBoxLayoutState.h" | |
| 22 #include "nsGridLayout2.h" | |
| 23 #include "nsGridRow.h" | |
| 24 #include "nsHTMLReflowState.h" | |
| 25 | |
| 26 already_AddRefed<nsBoxLayout> NS_NewGridRowGroupLayout() | |
| 27 { | |
| 28 nsRefPtr<nsBoxLayout> layout = new nsGridRowGroupLayout(); | |
| 29 return layout.forget(); | |
| 30 } | |
| 31 | |
| 32 nsGridRowGroupLayout::nsGridRowGroupLayout():nsGridRowLayout(), mRowCount(0) | |
| 33 { | |
| 34 } | |
| 35 | |
| 36 nsGridRowGroupLayout::~nsGridRowGroupLayout() | |
| 37 { | |
| 38 } | |
| 39 | |
| 40 void | |
| 41 nsGridRowGroupLayout::ChildAddedOrRemoved(nsIFrame* aBox, nsBoxLayoutState& aState) | |
| 42 { | |
| 43 int32_t index = 0; | |
| 44 nsGrid* grid = GetGrid(aBox, &index); | |
| 45 bool isHorizontal = IsHorizontal(aBox); | |
| 46 | |
| 47 if (grid) | |
| 48 grid->RowAddedOrRemoved(aState, index, isHorizontal); | |
| 49 } | |
| 50 | |
| 51 void | |
| 52 nsGridRowGroupLayout::AddWidth(nsSize& aSize, nscoord aSize2, bool aIsHorizontal) | |
| 53 { | |
| 54 nscoord& size = GET_WIDTH(aSize, aIsHorizontal); | |
| 55 | |
| 56 if (size == NS_INTRINSICSIZE || aSize2 == NS_INTRINSICSIZE) | |
| 57 size = NS_INTRINSICSIZE; | |
| 58 else | |
| 59 size += aSize2; | |
| 60 } | |
| 61 | |
| 62 nsSize | |
| 63 nsGridRowGroupLayout::GetPrefSize(nsIFrame* aBox, nsBoxLayoutState& aState) | |
| 64 { | |
| 65 nsSize vpref = nsGridRowLayout::GetPrefSize(aBox, aState); | |
| 66 | |
| 67 | |
| 68 /* It is possible that we could have some extra columns. This is when less columns in XUL were | |
| 69 * defined that needed. And example might be a grid with 3 defined columns but a row with 4 cells in | |
| 70 * it. We would need an extra column to make the grid work. But because that extra column does not | |
| 71 * have a box associated with it we must add its size in manually. Remember we could have extra rows | |
| 72 * as well. | |
| 73 */ | |
| 74 | |
| 75 int32_t index = 0; | |
| 76 nsGrid* grid = GetGrid(aBox, &index); | |
| 77 | |
| 78 if (grid) | |
| 79 { | |
| 80 // make sure we add in extra columns sizes as well | |
| 81 bool isHorizontal = IsHorizontal(aBox); | |
| 82 int32_t extraColumns = grid->GetExtraColumnCount(isHorizontal); | |
| 83 int32_t start = grid->GetColumnCount(isHorizontal) - grid->GetExtraColumnCount(isHorizontal); | |
| 84 for (int32_t i=0; i < extraColumns; i++) | |
| 85 { | |
| 86 nscoord pref = | |
| 87 grid->GetPrefRowHeight(aState, i+start, !isHorizontal); // GetPrefColumnWidth | |
| 88 | |
| 89 AddWidth(vpref, pref, isHorizontal); | |
| 90 } | |
| 91 } | |
| 92 | |
| 93 return vpref; | |
| 94 } | |
| 95 | |
| 96 nsSize | |
| 97 nsGridRowGroupLayout::GetMaxSize(nsIFrame* aBox, nsBoxLayoutState& aState) | |
| 98 { | |
| 99 nsSize maxSize = nsGridRowLayout::GetMaxSize(aBox, aState); | |
| 100 | |
| 101 int32_t index = 0; | |
| 102 nsGrid* grid = GetGrid(aBox, &index); | |
| 103 | |
| 104 if (grid) | |
| 105 { | |
| 106 // make sure we add in extra columns sizes as well | |
| 107 bool isHorizontal = IsHorizontal(aBox); | |
| 108 int32_t extraColumns = grid->GetExtraColumnCount(isHorizontal); | |
| 109 int32_t start = grid->GetColumnCount(isHorizontal) - grid->GetExtraColumnCount(isHorizontal); | |
| 110 for (int32_t i=0; i < extraColumns; i++) | |
| 111 { | |
| 112 nscoord max = | |
| 113 grid->GetMaxRowHeight(aState, i+start, !isHorizontal); // GetMaxColumnWidth | |
| 114 | |
| 115 AddWidth(maxSize, max, isHorizontal); | |
| 116 } | |
| 117 } | |
| 118 | |
| 119 return maxSize; | |
| 120 } | |
| 121 | |
| 122 nsSize | |
| 123 nsGridRowGroupLayout::GetMinSize(nsIFrame* aBox, nsBoxLayoutState& aState) | |
| 124 { | |
| 125 nsSize minSize = nsGridRowLayout::GetMinSize(aBox, aState); | |
| 126 | |
| 127 int32_t index = 0; | |
| 128 nsGrid* grid = GetGrid(aBox, &index); | |
| 129 | |
| 130 if (grid) | |
| 131 { | |
| 132 // make sure we add in extra columns sizes as well | |
| 133 bool isHorizontal = IsHorizontal(aBox); | |
| 134 int32_t extraColumns = grid->GetExtraColumnCount(isHorizontal); | |
| 135 int32_t start = grid->GetColumnCount(isHorizontal) - grid->GetExtraColumnCount(isHorizontal); | |
| 136 for (int32_t i=0; i < extraColumns; i++) | |
| 137 { | |
| 138 nscoord min = | |
| 139 grid->GetMinRowHeight(aState, i+start, !isHorizontal); // GetMinColumnWidth | |
| 140 AddWidth(minSize, min, isHorizontal); | |
| 141 } | |
| 142 } | |
| 143 | |
| 144 return minSize; | |
| 145 } | |
| 146 | |
| 147 /* | |
| 148 * Run down through our children dirtying them recursively. | |
| 149 */ | |
| 150 void | |
| 151 nsGridRowGroupLayout::DirtyRows(nsIFrame* aBox, nsBoxLayoutState& aState) | |
| 152 { | |
| 153 if (aBox) { | |
| 154 // mark us dirty | |
| 155 // XXXldb We probably don't want to walk up the ancestor chain | |
| 156 // calling MarkIntrinsicWidthsDirty for every row group. | |
| 157 aState.PresShell()->FrameNeedsReflow(aBox, nsIPresShell::eTreeChange, | |
| 158 NS_FRAME_IS_DIRTY); | |
| 159 nsIFrame* child = aBox->GetChildBox(); | |
| 160 | |
| 161 while(child) { | |
| 162 | |
| 163 // walk into scrollframes | |
| 164 nsIFrame* deepChild = nsGrid::GetScrolledBox(child); | |
| 165 | |
| 166 // walk into other monuments | |
| 167 nsIGridPart* monument = nsGrid::GetPartFromBox(deepChild); | |
| 168 if (monument) | |
| 169 monument->DirtyRows(deepChild, aState); | |
| 170 | |
| 171 child = child->GetNextBox(); | |
| 172 } | |
| 173 } | |
| 174 } | |
| 175 | |
| 176 | |
| 177 void | |
| 178 nsGridRowGroupLayout::CountRowsColumns(nsIFrame* aBox, int32_t& aRowCount, int32_t& aComputedColumnCount) | |
| 179 { | |
| 180 if (aBox) { | |
| 181 int32_t startCount = aRowCount; | |
| 182 | |
| 183 nsIFrame* child = aBox->GetChildBox(); | |
| 184 | |
| 185 while(child) { | |
| 186 | |
| 187 // first see if it is a scrollframe. If so walk down into it and get the scrolled child | |
| 188 nsIFrame* deepChild = nsGrid::GetScrolledBox(child); | |
| 189 | |
| 190 nsIGridPart* monument = nsGrid::GetPartFromBox(deepChild); | |
| 191 if (monument) { | |
| 192 monument->CountRowsColumns(deepChild, aRowCount, aComputedColumnCount); | |
| 193 child = child->GetNextBox(); | |
| 194 deepChild = child; | |
| 195 continue; | |
| 196 } | |
| 197 | |
| 198 child = child->GetNextBox(); | |
| 199 | |
| 200 // if not a monument. Then count it. It will be a bogus row | |
| 201 aRowCount++; | |
| 202 } | |
| 203 | |
| 204 mRowCount = aRowCount - startCount; | |
| 205 } | |
| 206 } | |
| 207 | |
| 208 | |
| 209 /** | |
| 210 * Fill out the given row structure recursively | |
| 211 */ | |
| 212 int32_t | |
| 213 nsGridRowGroupLayout::BuildRows(nsIFrame* aBox, nsGridRow* aRows) | |
| 214 { | |
| 215 int32_t rowCount = 0; | |
| 216 | |
| 217 if (aBox) { | |
| 218 nsIFrame* child = aBox->GetChildBox(); | |
| 219 | |
| 220 while(child) { | |
| 221 | |
| 222 // first see if it is a scrollframe. If so walk down into it and get the scrolled child | |
| 223 nsIFrame* deepChild = nsGrid::GetScrolledBox(child); | |
| 224 | |
| 225 nsIGridPart* monument = nsGrid::GetPartFromBox(deepChild); | |
| 226 if (monument) { | |
| 227 rowCount += monument->BuildRows(deepChild, &aRows[rowCount]); | |
| 228 child = child->GetNextBox(); | |
| 229 deepChild = child; | |
| 230 continue; | |
| 231 } | |
| 232 | |
| 233 aRows[rowCount].Init(child, true); | |
| 234 | |
| 235 child = child->GetNextBox(); | |
| 236 | |
| 237 // if not a monument. Then count it. It will be a bogus row | |
| 238 rowCount++; | |
| 239 } | |
| 240 } | |
| 241 | |
| 242 return rowCount; | |
| 243 } | |
| 244 | |
| 245 nsMargin | |
| 246 nsGridRowGroupLayout::GetTotalMargin(nsIFrame* aBox, bool aIsHorizontal) | |
| 247 { | |
| 248 // group have border and padding added to the total margin | |
| 249 | |
| 250 nsMargin margin = nsGridRowLayout::GetTotalMargin(aBox, aIsHorizontal); | |
| 251 | |
| 252 // make sure we have the scrollframe on the outside if it has one. | |
| 253 // that's where the border is. | |
| 254 aBox = nsGrid::GetScrollBox(aBox); | |
| 255 | |
| 256 // add our border/padding to it | |
| 257 nsMargin borderPadding(0,0,0,0); | |
| 258 aBox->GetBorderAndPadding(borderPadding); | |
| 259 margin += borderPadding; | |
| 260 | |
| 261 return margin; | |
| 262 } | |
| 263 | |
| 264 |
