ui/base/models/table_model.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "ui/base/models/table_model.h"
   6
   7 #include "base/i18n/string_compare.h"
   8 #include "base/logging.h"
   9 #include "ui/base/l10n/l10n_util.h"
  10 #include "ui/gfx/image/image_skia.h"
  11
  12 namespace ui {
  13
  14 // TableColumn -----------------------------------------------------------------
  15
  16 TableColumn::TableColumn()
  17     : id(0),
  18       title(),
  19       alignment(LEFT),
  20       width(-1),
  21       percent(),
  22       min_visible_width(0),
  23       sortable(false) {
  24 }
  25
  26 TableColumn::TableColumn(int id, Alignment alignment, int width, float percent)
  27     : id(id),
  28       title(l10n_util::GetStringUTF16(id)),
  29       alignment(alignment),
  30       width(width),
  31       percent(percent),
  32       min_visible_width(0),
  33       sortable(false) {
  34 }
  35
  36 // TableModel -----------------------------------------------------------------
  37
  38 // Used for sorting.
  39 static icu::Collator* collator = NULL;
  40
  41 gfx::ImageSkia TableModel::GetIcon(int row) {
  42   return gfx::ImageSkia();
  43 }
  44
  45 base::string16 TableModel::GetTooltip(int row) {
  46   return base::string16();
  47 }
  48
  49 bool TableModel::ShouldIndent(int row) {
  50   return false;
  51 }
  52
  53 bool TableModel::HasGroups() {
  54   return false;
  55 }
  56
  57 TableModel::Groups TableModel::GetGroups() {
  58   // If you override HasGroups to return true, you must override this as
  59   // well.
  60   NOTREACHED();
  61   return std::vector<Group>();
  62 }
  63
  64 int TableModel::GetGroupID(int row) {
  65   // If you override HasGroups to return true, you must override this as
  66   // well.
  67   NOTREACHED();
  68   return 0;
  69 }
  70
  71 int TableModel::CompareValues(int row1, int row2, int column_id) {
  72   DCHECK(row1 >= 0 && row1 < RowCount() &&
  73          row2 >= 0 && row2 < RowCount());
  74   base::string16 value1 = GetText(row1, column_id);
  75   base::string16 value2 = GetText(row2, column_id);
  76   icu::Collator* collator = GetCollator();
  77
  78   if (collator)
  79     return base::i18n::CompareString16WithCollator(collator, value1, value2);
  80
  81   NOTREACHED();
  82   return 0;
  83 }
  84
  85 void TableModel::ClearCollator() {
  86   delete collator;
  87   collator = NULL;
  88 }
  89
  90 icu::Collator* TableModel::GetCollator() {
  91   if (!collator) {
  92     UErrorCode create_status = U_ZERO_ERROR;
  93     collator = icu::Collator::createInstance(create_status);
  94     if (!U_SUCCESS(create_status)) {
  95       collator = NULL;
  96       NOTREACHED();
  97     }
  98   }
  99   return collator;
 100 }
 101
 102 }  // namespace ui