2 * Copyright (c) 2020 Samsung Electronics Co., Ltd.
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
8 * http://www.apache.org/licenses/LICENSE-2.0
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.
18 #include <dali-toolkit/dali-toolkit.h>
19 #include <dali-toolkit/devel-api/controls/table-view/table-view.h>
22 using namespace Dali::Toolkit;
24 const char* images[] = {
25 DEMO_IMAGE_DIR "gallery-small-1.jpg",
26 DEMO_IMAGE_DIR "gallery-small-2.jpg",
27 DEMO_IMAGE_DIR "gallery-small-3.jpg",
28 DEMO_IMAGE_DIR "gallery-small-4.jpg",
29 DEMO_IMAGE_DIR "gallery-small-5.jpg"};
31 // This verification example confirms drawing order is the same, with or without clipping enabled.
32 class ClippingDrawOrderVerification : public ConnectionTracker
35 ClippingDrawOrderVerification(Application& application)
36 : mApplication(application)
38 // Connect to the Application's Init signal.
39 mApplication.InitSignal().Connect(this, &ClippingDrawOrderVerification::Create);
42 ~ClippingDrawOrderVerification()
44 // Nothing to do here.
47 // The Init signal is received once (only) during the Application lifetime.
48 void Create(Application& application)
50 // Get a handle to the window
51 Window window = application.GetWindow();
52 window.SetBackgroundColor(Color::WHITE);
54 // Connect to the window's key signal to allow Back and Escape to exit.
55 window.KeyEventSignal().Connect(this, &ClippingDrawOrderVerification::OnKeyEvent);
57 // Create the title label.
58 TextLabel title = TextLabel::New("Clipping draw order verification");
59 title.SetProperty(TextLabel::Property::HORIZONTAL_ALIGNMENT, "CENTER");
60 title.SetProperty(TextLabel::Property::VERTICAL_ALIGNMENT, "CENTER");
61 title.SetProperty(Actor::Property::ANCHOR_POINT, AnchorPoint::CENTER);
62 title.SetProperty(Actor::Property::PARENT_ORIGIN, ParentOrigin::CENTER);
64 // Create the description label.
65 TextLabel description = TextLabel::New("The bottom tree should have the same draw order as the top tree.\nThey should look identical except \"C\" is clipped on the bottom tree.");
66 description.SetProperty(TextLabel::Property::HORIZONTAL_ALIGNMENT, "CENTER");
67 description.SetProperty(TextLabel::Property::MULTI_LINE, true);
68 description.SetProperty(Actor::Property::ANCHOR_POINT, AnchorPoint::BOTTOM_CENTER);
69 description.SetProperty(Actor::Property::PARENT_ORIGIN, Vector3(0.5f, 1.0f, 0.5f));
70 window.Add(description);
73 * Create a 4-row TableView.
74 * It will be segmented as follows:
90 TableView view = TableView::New(4, 1);
91 view.SetProperty(Actor::Property::ANCHOR_POINT, AnchorPoint::CENTER);
92 view.SetProperty(Actor::Property::PARENT_ORIGIN, ParentOrigin::CENTER);
93 view.SetResizePolicy(ResizePolicy::FILL_TO_PARENT, Dimension::ALL_DIMENSIONS);
95 view.SetCellAlignment(Toolkit::TableView::CellPosition(0, 0), HorizontalAlignment::CENTER, VerticalAlignment::CENTER);
96 view.SetCellAlignment(Toolkit::TableView::CellPosition(1, 0), HorizontalAlignment::CENTER, VerticalAlignment::CENTER);
97 view.SetCellAlignment(Toolkit::TableView::CellPosition(2, 0), HorizontalAlignment::CENTER, VerticalAlignment::CENTER);
98 view.SetCellAlignment(Toolkit::TableView::CellPosition(3, 0), HorizontalAlignment::CENTER, VerticalAlignment::CENTER);
100 view.SetCellPadding(Vector2(14.0f, 7.0f));
102 view.SetRelativeWidth(0u, 1.0f);
104 view.SetFitHeight(0u);
105 view.SetRelativeHeight(1u, 0.5f);
106 view.SetRelativeHeight(2u, 0.5f);
107 view.SetFitHeight(3u);
109 // Add the title and description to the TableView.
110 view.AddChild(title, TableView::CellPosition(0u, 0u));
111 view.AddChild(description, TableView::CellPosition(3u, 0u));
114 For each of the 2 tree views, we create a small tree of actors as follows:
115 ( Note: Clipping is only enabled for B on the bottom tree ).
119 Clipping enabled -> B D
123 The correct draw order is "ABCDE" (the same as if clipping was not enabled).
125 const float treeYStart = 0.12f;
126 const float depthGap = 0.35f;
128 for(int tree = 0; tree < 2; ++tree)
130 Control container = Control::New();
131 container.SetProperty(Actor::Property::ANCHOR_POINT, AnchorPoint::TOP_CENTER);
132 container.SetProperty(Actor::Property::PARENT_ORIGIN, ParentOrigin::TOP_CENTER);
133 container.SetResizePolicy(ResizePolicy::FILL_TO_PARENT, Dimension::ALL_DIMENSIONS);
134 Vector4 backgroundColor = tree == 0 ? Vector4(0.77f, 1.0f, 0.77f, 1.0f) : Vector4(0.8f, 0.8f, 1.0f, 1.0f);
135 container.SetProperty(Control::Property::BACKGROUND, backgroundColor);
138 // Loop for each of the 5 images & labels.
139 for(int i = 0; i < 5; ++i)
141 std::stringstream labelStream;
142 labelStream << static_cast<char>(static_cast<char>(i) + 'A');
143 TextLabel textLabel = TextLabel::New(labelStream.str());
144 textLabel.SetProperty(Actor::Property::ANCHOR_POINT, AnchorPoint::TOP_CENTER);
146 image[i] = ImageView::New(images[i]);
147 image[i].SetProperty(Actor::Property::ANCHOR_POINT, AnchorPoint::TOP_CENTER);
149 // Calculate the relative positioning for the images and labels.
150 float depth = static_cast<float>(i == 0 ? 0 : ((i - 1) % 2) + 1);
154 image[i].SetProperty(Actor::Property::PARENT_ORIGIN, Vector3(0.5f, treeYStart, 0.5f));
155 textLabel.SetProperty(Actor::Property::PARENT_ORIGIN, Vector3(1.0f, 0.05f * depth, 0.5f));
159 float b = i > 2 ? 1.0f : -1.0f;
160 image[i].SetProperty(Actor::Property::PARENT_ORIGIN, Vector3(0.5f + (0.2f * b), depthGap, 0.5f));
161 textLabel.SetProperty(Actor::Property::PARENT_ORIGIN, Vector3(0.98f + 0.215f * b + (0.04f * b * depth), treeYStart + 0.02f + (0.16f * depth), 0.5f));
164 container.Add(textLabel);
167 // Create the title label.
168 std::string treeText = tree == 0 ? "Without Clipping" : "With Clipping";
169 TextLabel treeLabel = TextLabel::New(treeText);
170 treeLabel.SetProperty(TextLabel::Property::HORIZONTAL_ALIGNMENT, "CENTER");
171 treeLabel.SetProperty(TextLabel::Property::VERTICAL_ALIGNMENT, "BOTTOM");
172 treeLabel.SetProperty(Actor::Property::ANCHOR_POINT, AnchorPoint::BOTTOM_CENTER);
173 treeLabel.SetProperty(Actor::Property::PARENT_ORIGIN, ParentOrigin::BOTTOM_CENTER);
174 container.Add(treeLabel);
176 // Enable clipping for the 2nd tree.
179 image[1].SetProperty(Actor::Property::CLIPPING_MODE, ClippingMode::CLIP_CHILDREN);
182 // Build the tree structure.
183 container.Add(image[0]);
185 image[0].Add(image[1]);
186 image[1].Add(image[2]);
188 image[0].Add(image[3]);
189 image[3].Add(image[4]);
191 // Add the finished tree to the TableView.
192 view.AddChild(container, TableView::CellPosition(1u + tree, 0u));
195 // Add the finished TableView to the window.
198 // Respond to a click anywhere on the window
199 window.GetRootLayer().TouchedSignal().Connect(this, &ClippingDrawOrderVerification::OnTouch);
202 bool OnTouch(Actor actor, const TouchEvent& touch)
204 // Quit the application.
210 * @brief Called when any key event is received
212 * Will use this to quit the application if Back or the Escape key is received
213 * @param[in] event The key event information
215 void OnKeyEvent(const KeyEvent& event)
217 if(event.GetState() == KeyEvent::DOWN)
219 if(IsKey(event, DALI_KEY_ESCAPE) || IsKey(event, DALI_KEY_BACK))
227 Application& mApplication;
230 int DALI_EXPORT_API main(int argc, char** argv)
232 Application application = Application::New(&argc, &argv);
233 ClippingDrawOrderVerification verification(application);
234 application.MainLoop();