src/kits/interface/AbstractLayoutItem.cpp

   1 /*
   2  * Copyright 2010, Haiku, Inc.
   3  * Copyright 2006, Ingo Weinhold <bonefish@cs.tu-berlin.de>.
   4  * All rights reserved. Distributed under the terms of the MIT License.
   5  */
   6
   7
   8 #include <AbstractLayoutItem.h>
   9
  10 #include <LayoutUtils.h>
  11 #include <Message.h>
  12
  13
  14 namespace {
  15         const char* const kSizesField = "BAbstractLayoutItem:sizes";
  16                 // kSizesField == {min, max, preferred}
  17         const char* const kAlignmentField = "BAbstractLayoutItem:alignment";
  18 }
  19
  20
  21 BAbstractLayoutItem::BAbstractLayoutItem()
  22         :
  23         fMinSize(),
  24         fMaxSize(),
  25         fPreferredSize(),
  26         fAlignment()
  27 {
  28 }
  29
  30
  31 BAbstractLayoutItem::BAbstractLayoutItem(BMessage* from)
  32         :
  33         BLayoutItem(from),
  34         fMinSize(),
  35         fMaxSize(),
  36         fPreferredSize(),
  37         fAlignment()
  38 {
  39         from->FindSize(kSizesField, 0, &fMinSize);
  40         from->FindSize(kSizesField, 1, &fMaxSize);
  41         from->FindSize(kSizesField, 2, &fPreferredSize);
  42         from->FindAlignment(kAlignmentField, &fAlignment);
  43 }
  44
  45
  46 BAbstractLayoutItem::~BAbstractLayoutItem()
  47 {
  48 }
  49
  50
  51 BSize
  52 BAbstractLayoutItem::MinSize()
  53 {
  54         return BLayoutUtils::ComposeSize(fMinSize, BaseMinSize());
  55 }
  56
  57
  58 BSize
  59 BAbstractLayoutItem::MaxSize()
  60 {
  61         return BLayoutUtils::ComposeSize(fMaxSize, BaseMaxSize());
  62 }
  63
  64
  65 BSize
  66 BAbstractLayoutItem::PreferredSize()
  67 {
  68         return BLayoutUtils::ComposeSize(fMaxSize, BasePreferredSize());
  69 }
  70
  71
  72 BAlignment
  73 BAbstractLayoutItem::Alignment()
  74 {
  75         return BLayoutUtils::ComposeAlignment(fAlignment, BaseAlignment());
  76 }
  77
  78
  79 void
  80 BAbstractLayoutItem::SetExplicitMinSize(BSize size)
  81 {
  82         fMinSize = size;
  83 }
  84
  85
  86 void
  87 BAbstractLayoutItem::SetExplicitMaxSize(BSize size)
  88 {
  89         fMaxSize = size;
  90 }
  91
  92
  93 void
  94 BAbstractLayoutItem::SetExplicitPreferredSize(BSize size)
  95 {
  96         fPreferredSize = size;
  97 }
  98
  99
 100 void
 101 BAbstractLayoutItem::SetExplicitAlignment(BAlignment alignment)
 102 {
 103         fAlignment = alignment;
 104 }
 105
 106
 107 BSize
 108 BAbstractLayoutItem::BaseMinSize()
 109 {
 110         return BSize(0, 0);
 111 }
 112
 113
 114 BSize
 115 BAbstractLayoutItem::BaseMaxSize()
 116 {
 117         return BSize(B_SIZE_UNLIMITED, B_SIZE_UNLIMITED);
 118 }
 119
 120
 121 BSize
 122 BAbstractLayoutItem::BasePreferredSize()
 123 {
 124         return BSize(0, 0);
 125 }
 126
 127
 128 BAlignment
 129 BAbstractLayoutItem::BaseAlignment()
 130 {
 131         return BAlignment(B_ALIGN_HORIZONTAL_CENTER, B_ALIGN_VERTICAL_CENTER);
 132 }
 133
 134
 135 status_t
 136 BAbstractLayoutItem::Archive(BMessage* into, bool deep) const
 137 {
 138         BArchiver archiver(into);
 139         status_t err = BLayoutItem::Archive(into, deep);
 140
 141         if (err == B_OK)
 142                 err = into->AddSize(kSizesField, fMinSize);
 143
 144         if (err == B_OK)
 145                 err = into->AddSize(kSizesField, fMaxSize);
 146
 147         if (err == B_OK)
 148                 err = into->AddSize(kSizesField, fPreferredSize);
 149
 150         if (err == B_OK)
 151                 err = into->AddAlignment(kAlignmentField, fAlignment);
 152
 153         return archiver.Finish(err);
 154 }
 155
 156
 157 status_t
 158 BAbstractLayoutItem::AllUnarchived(const BMessage* archive)
 159 {
 160         return BLayoutItem::AllUnarchived(archive);
 161 }
 162
 163
 164 status_t
 165 BAbstractLayoutItem::AllArchived(BMessage* archive) const
 166 {
 167         return BLayoutItem::AllArchived(archive);
 168 }
 169
 170
 171 void
 172 BAbstractLayoutItem::LayoutInvalidated(bool children)
 173 {
 174         BLayoutItem::LayoutInvalidated(children);
 175 }
 176
 177
 178 void
 179 BAbstractLayoutItem::AttachedToLayout()
 180 {
 181         BLayoutItem::AttachedToLayout();
 182 }
 183
 184
 185 void
 186 BAbstractLayoutItem::DetachedFromLayout(BLayout* layout)
 187 {
 188         BLayoutItem::DetachedFromLayout(layout);
 189 }
 190
 191
 192 void
 193 BAbstractLayoutItem::AncestorVisibilityChanged(bool shown)
 194 {
 195         BLayoutItem::AncestorVisibilityChanged(shown);
 196 }
 197
 198
 199 status_t
 200 BAbstractLayoutItem::Perform(perform_code d, void* arg)
 201 {
 202         return BLayoutItem::Perform(d, arg);
 203 }
 204
 205
 206 void BAbstractLayoutItem::_ReservedAbstractLayoutItem1() {}
 207 void BAbstractLayoutItem::_ReservedAbstractLayoutItem2() {}
 208 void BAbstractLayoutItem::_ReservedAbstractLayoutItem3() {}
 209 void BAbstractLayoutItem::_ReservedAbstractLayoutItem4() {}
 210 void BAbstractLayoutItem::_ReservedAbstractLayoutItem5() {}
 211 void BAbstractLayoutItem::_ReservedAbstractLayoutItem6() {}
 212 void BAbstractLayoutItem::_ReservedAbstractLayoutItem7() {}
 213 void BAbstractLayoutItem::_ReservedAbstractLayoutItem8() {}
 214 void BAbstractLayoutItem::_ReservedAbstractLayoutItem9() {}
 215 void BAbstractLayoutItem::_ReservedAbstractLayoutItem10() {}
 216