test/NUITizenGallery/Examples/StackLayoutTest8/StackLayoutTest8Page.xaml.cs

   1 /*
   2  * Copyright(c) 2021 Samsung Electronics Co., Ltd.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  *
  16  */
  17 using Tizen.NUI;
  18 using Tizen.NUI.BaseComponents;
  19 using Tizen.NUI.Components;
  20
  21 namespace NUITizenGallery
  22 {
  23     public partial class StackLayoutTest8Page : View
  24     {
  25         public StackLayoutTest8Page()
  26         {
  27             InitializeComponent();
  28             this.Padding = new Extents(20, 20, 20, 20);
  29             sliderPadding.ValueChanged += OnPaddingSliderChanged;
  30             sliderCellPadding.ValueChanged += OnCellPaddingSilderChanged;
  31             sliderMargin.ValueChanged += OnMarginSliderChanged;
  32             buttonOrientation.Clicked += OnButtonOrientationClicked;
  33             buttonReset.Clicked += OnResetButtonClikced;
  34
  35         }
  36
  37         private void OnPaddingSliderChanged(object sender, SliderValueChangedEventArgs e)
  38         {
  39             ushort padding = (ushort)e.CurrentValue;
  40             layout.Padding = new Extents(padding, padding, padding, padding);
  41         }
  42
  43         private void OnCellPaddingSilderChanged(object sender, SliderValueChangedEventArgs e)
  44         {
  45             (layout.Layout as LinearLayout).CellPadding = new Size2D((int)e.CurrentValue, (int)e.CurrentValue);
  46         }
  47
  48         private void OnMarginSliderChanged(object sender, SliderValueChangedEventArgs e)
  49         {
  50             ushort margin = (ushort)e.CurrentValue;
  51             layout.Margin = new Extents(margin, margin, margin, margin);
  52         }
  53
  54         private void OnButtonOrientationClicked(object sender, ClickedEventArgs e)
  55         {
  56             LinearLayout linearLayout = (layout.Layout as LinearLayout);
  57
  58             if (linearLayout.LinearOrientation == LinearLayout.Orientation.Horizontal)
  59             {
  60                 linearLayout.LinearOrientation = LinearLayout.Orientation.Vertical;
  61                 redBox.WidthSpecification = LayoutParamPolicies.MatchParent;
  62                 greenBox.WidthSpecification = LayoutParamPolicies.MatchParent;
  63                 blueBox.WidthSpecification = LayoutParamPolicies.MatchParent;
  64                 redBox.HeightSpecification = 80;
  65                 greenBox.HeightSpecification = 80;
  66                 blueBox.HeightSpecification = 80;
  67             }
  68             else
  69             {
  70                 linearLayout.LinearOrientation = LinearLayout.Orientation.Horizontal;
  71                 redBox.WidthSpecification = 80;
  72                 greenBox.WidthSpecification = 80;
  73                 blueBox.WidthSpecification = 80;
  74             }
  75         }
  76
  77         private void OnResetButtonClikced(object sender, ClickedEventArgs e)
  78         {
  79             layout.Padding = new Extents(0, 0, 0, 0);
  80             layout.Margin = new Extents(0, 0, 0, 0);
  81             (layout.Layout as LinearLayout).CellPadding = new Size2D(0,0);
  82
  83             sliderPadding.CurrentValue = 0.0f;
  84             sliderCellPadding.CurrentValue = 0.0f;
  85             sliderMargin.CurrentValue = 0.0f;
  86
  87         }
  88
  89         protected override void Dispose(DisposeTypes type)
  90         {
  91             if (Disposed)
  92             {
  93                 return;
  94             }
  95
  96             if (type == DisposeTypes.Explicit)
  97             {
  98                 sliderPadding.ValueChanged -= OnPaddingSliderChanged;
  99                 sliderCellPadding.ValueChanged -= OnCellPaddingSilderChanged;
 100                 sliderMargin.ValueChanged -= OnMarginSliderChanged;
 101                 buttonOrientation.Clicked -= OnButtonOrientationClicked;
 102                 buttonReset.Clicked -= OnResetButtonClikced;
 103                 RemoveAllChildren(true);
 104             }
 105
 106             base.Dispose(type);
 107         }
 108
 109         private void RemoveAllChildren(bool dispose = false)
 110         {
 111             RecursiveRemoveChildren(this, dispose);
 112         }
 113
 114         private void RecursiveRemoveChildren(View parent, bool dispose)
 115         {
 116             if (parent == null)
 117             {
 118                 return;
 119             }
 120
 121             int maxChild = (int)parent.ChildCount;
 122             for (int i = maxChild - 1; i >= 0; --i)
 123             {
 124                 View child = parent.GetChildAt((uint)i);
 125                 if (child == null)
 126                 {
 127                     continue;
 128                 }
 129
 130                 RecursiveRemoveChildren(child, dispose);
 131                 parent.Remove(child);
 132                 if (dispose)
 133                 {
 134                     child.Dispose();
 135                 }
 136             }
 137         }
 138     }
 139 }