1 /* 2 * Copyright (C) 2009 Apple Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #include "config.h" 27 28 #if ENABLE(DATAGRID) 29 30 #include "RenderDataGrid.h" 31 32 #include "CSSStyleSelector.h" 33 #include "FocusController.h" 34 #include "Frame.h" 35 #include "GraphicsContext.h" 36 #include "Page.h" 37 #include "RenderView.h" 38 #include "Scrollbar.h" 39 40 using std::min; 41 42 namespace WebCore { 43 44 static const int cDefaultWidth = 300; 45 46 RenderDataGrid::RenderDataGrid(Element* elt) 47 : RenderBlock(elt) 48 { 49 } 50 51 RenderDataGrid::~RenderDataGrid() 52 { 53 } 54 55 void RenderDataGrid::styleDidChange(StyleDifference diff, const RenderStyle* oldStyle) 56 { 57 RenderBlock::styleDidChange(diff, oldStyle); 58 recalcStyleForColumns(); 59 } 60 61 void RenderDataGrid::recalcStyleForColumns() 62 { 63 DataGridColumnList* columns = gridElement()->columns(); 64 unsigned length = columns->length(); 65 for (unsigned i = 0; i < length; ++i) 66 recalcStyleForColumn(columns->item(i)); 67 } 68 69 void RenderDataGrid::recalcStyleForColumn(DataGridColumn* column) 70 { 71 if (!column->columnStyle()) 72 column->setColumnStyle(document()->styleSelector()->pseudoStyleForDataGridColumn(column, style())); 73 if (!column->headerStyle()) 74 column->setHeaderStyle(document()->styleSelector()->pseudoStyleForDataGridColumnHeader(column, style())); 75 } 76 77 RenderStyle* RenderDataGrid::columnStyle(DataGridColumn* column) 78 { 79 if (!column->columnStyle()) 80 recalcStyleForColumn(column); 81 return column->columnStyle(); 82 } 83 84 RenderStyle* RenderDataGrid::headerStyle(DataGridColumn* column) 85 { 86 if (!column->headerStyle()) 87 recalcStyleForColumn(column); 88 return column->headerStyle(); 89 } 90 91 void RenderDataGrid::calcPrefWidths() 92 { 93 m_minPrefWidth = 0; 94 m_maxPrefWidth = 0; 95 96 if (style()->width().isFixed() && style()->width().value() > 0) 97 m_minPrefWidth = m_maxPrefWidth = calcContentBoxWidth(style()->width().value()); 98 else 99 m_maxPrefWidth = calcContentBoxWidth(cDefaultWidth); 100 101 if (style()->minWidth().isFixed() && style()->minWidth().value() > 0) { 102 m_maxPrefWidth = max(m_maxPrefWidth, calcContentBoxWidth(style()->minWidth().value())); 103 m_minPrefWidth = max(m_minPrefWidth, calcContentBoxWidth(style()->minWidth().value())); 104 } else if (style()->width().isPercent() || (style()->width().isAuto() && style()->height().isPercent())) 105 m_minPrefWidth = 0; 106 else 107 m_minPrefWidth = m_maxPrefWidth; 108 109 if (style()->maxWidth().isFixed() && style()->maxWidth().value() != undefinedLength) { 110 m_maxPrefWidth = min(m_maxPrefWidth, calcContentBoxWidth(style()->maxWidth().value())); 111 m_minPrefWidth = min(m_minPrefWidth, calcContentBoxWidth(style()->maxWidth().value())); 112 } 113 114 int toAdd = paddingLeft() + paddingRight() + borderLeft() + borderRight(); 115 m_minPrefWidth += toAdd; 116 m_maxPrefWidth += toAdd; 117 118 setPrefWidthsDirty(false); 119 } 120 121 void RenderDataGrid::layout() 122 { 123 RenderBlock::layout(); 124 layoutColumns(); 125 } 126 127 void RenderDataGrid::layoutColumns() 128 { 129 // FIXME: Implement. 130 } 131 132 void RenderDataGrid::paintObject(PaintInfo& paintInfo, int tx, int ty) 133 { 134 if (style()->visibility() != VISIBLE) 135 return; 136 137 // Paint our background and border. 138 RenderBlock::paintObject(paintInfo, tx, ty); 139 140 if (paintInfo.phase != PaintPhaseForeground) 141 return; 142 143 // Paint our column headers first. 144 paintColumnHeaders(paintInfo, tx, ty); 145 } 146 147 void RenderDataGrid::paintColumnHeaders(PaintInfo& paintInfo, int tx, int ty) 148 { 149 DataGridColumnList* columns = gridElement()->columns(); 150 unsigned length = columns->length(); 151 for (unsigned i = 0; i < length; ++i) { 152 DataGridColumn* column = columns->item(i); 153 RenderStyle* columnStyle = headerStyle(column); 154 155 // Don't render invisible columns. 156 if (!columnStyle || columnStyle->display() == NONE || columnStyle->visibility() != VISIBLE) 157 continue; 158 159 // Paint the column header if it intersects the dirty rect. 160 IntRect columnRect(column->rect()); 161 columnRect.move(tx, ty); 162 if (columnRect.intersects(paintInfo.rect)) 163 paintColumnHeader(column, paintInfo, tx, ty); 164 } 165 } 166 167 void RenderDataGrid::paintColumnHeader(DataGridColumn*, PaintInfo&, int, int) 168 { 169 // FIXME: Implement. 170 } 171 172 // Scrolling implementation functions 173 void RenderDataGrid::valueChanged(Scrollbar*) 174 { 175 // FIXME: Implement. 176 } 177 178 void RenderDataGrid::invalidateScrollbarRect(Scrollbar*, const IntRect&) 179 { 180 // FIXME: Implement. 181 } 182 183 bool RenderDataGrid::isActive() const 184 { 185 Page* page = document()->frame()->page(); 186 return page && page->focusController()->isActive(); 187 } 188 189 190 IntRect RenderDataGrid::convertFromScrollbarToContainingView(const Scrollbar* scrollbar, const IntRect& scrollbarRect) const 191 { 192 RenderView* view = this->view(); 193 if (!view) 194 return scrollbarRect; 195 196 IntRect rect = scrollbarRect; 197 198 int scrollbarLeft = width() - borderRight() - scrollbar->width(); 199 int scrollbarTop = borderTop(); 200 rect.move(scrollbarLeft, scrollbarTop); 201 202 return view->frameView()->convertFromRenderer(this, rect); 203 } 204 205 IntRect RenderDataGrid::convertFromContainingViewToScrollbar(const Scrollbar* scrollbar, const IntRect& parentRect) const 206 { 207 RenderView* view = this->view(); 208 if (!view) 209 return parentRect; 210 211 IntRect rect = view->frameView()->convertToRenderer(this, parentRect); 212 213 int scrollbarLeft = width() - borderRight() - scrollbar->width(); 214 int scrollbarTop = borderTop(); 215 rect.move(-scrollbarLeft, -scrollbarTop); 216 return rect; 217 } 218 219 IntPoint RenderDataGrid::convertFromScrollbarToContainingView(const Scrollbar* scrollbar, const IntPoint& scrollbarPoint) const 220 { 221 RenderView* view = this->view(); 222 if (!view) 223 return scrollbarPoint; 224 225 IntPoint point = scrollbarPoint; 226 227 int scrollbarLeft = width() - borderRight() - scrollbar->width(); 228 int scrollbarTop = borderTop(); 229 point.move(scrollbarLeft, scrollbarTop); 230 231 return view->frameView()->convertFromRenderer(this, point); 232 } 233 234 IntPoint RenderDataGrid::convertFromContainingViewToScrollbar(const Scrollbar* scrollbar, const IntPoint& parentPoint) const 235 { 236 RenderView* view = this->view(); 237 if (!view) 238 return parentPoint; 239 240 IntPoint point = view->frameView()->convertToRenderer(this, parentPoint); 241 242 int scrollbarLeft = width() - borderRight() - scrollbar->width(); 243 int scrollbarTop = borderTop(); 244 point.move(-scrollbarLeft, -scrollbarTop); 245 return point; 246 } 247 248 } 249 250 #endif 251
