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85 85  * Smart Cities
86 86  * Smart Factory
87 87  
88 -= 2.  Getting Start with Hello World =
88 += 2.  Getting Started with Hello World =
89 89  
90 90  == 2.1  About this demo ==
91 91  
92 -In this Getting Start Example, we will show how to design a simple Display UI and upload it to LTS5. This UI has  a button , when user click the button. The Web UI will jump to a new page.
92 +In this Getting Started Example, we will show how to design a simple Display UI and upload it to LTS5. This UI has  a button , when user click the button. The Web UI will jump to a new page.
93 93  
94 94  == 2.2  Install Software Running Environment ==
95 95  
... ... @@ -101,8 +101,9 @@
101 101  
102 102  Next, you need to install the ESP-IDF extension within VSCode. The detailed operation steps are illustrated in image 1.
103 103  
104 -[[image:1727229396732-319.png]]
105 105  
105 +[[image:image-20240928110211-5.png||height="508" width="866"]]
106 +
106 106   image 1 ESP-IDF extension install
107 107  
108 108  Links for reference: [[Install ESP32 ESP-IDF on Windows and Integrate with VS code (esp32tutorials.com)>>url:https://esp32tutorials.com/install-esp32-esp-idf-windows-integrate-vs-code/#:~~:text=In%20this%20tutorial,%20we%20will%20show%20you%20how%20to%20install]]
... ... @@ -117,10 +117,11 @@
117 117  
118 118  After launching and logging in to this software, create a project as shown in the following image 2. The version of LVGL is 8.3.11.
119 119  
120 -[[image:1727229550717-684.png]]
121 121  
122 - image 2 create a SquareLine project
122 +[[image:image-20240928103357-2.png||height="680" width="708"]]
123 123  
124 + image 2 create a SquareLine project
125 +
124 124  Next, we need to make some settings for this project. By clicking in the specified order on image 3, we can see the page as shown in image 4.
125 125  
126 126  [[image:1727229582471-566.png]]
... ... @@ -127,42 +127,89 @@
127 127  
128 128   image 3 project settings
129 129  
130 -[[image:1727229618724-758.png]]
131 131  
133 +[[image:image-20240928105309-4.png||height="526" width="556"]]
134 +
132 132   image 4 modify project settings
133 133  
134 -Now we can start to use this software. The steps for creating this UI are shown in image 5-10.
137 +Now we can start to use this software. Here are some usage information for this software.
135 135  
136 -[[image:1727229653254-680.png]]
139 +**1.add widget**
137 137  
138 - image 5 create a UI(1)
141 +To add a widget, you should click a widget you want to add at the area entitled “Widgets”. In image , demonstrate a add process of label, button, and image 5.
139 139  
140 -[[image:1727231038705-173.png]]
143 +[[image:image-20240928111412-6.png||height="526" width="864"]]
141 141  
142 - image 6 create a UI(2)
143 143  
144 -[[image:1727229682537-381.png]]
146 + image 5 add widgets
145 145  
146 - image 7 create a UI(3)
148 +**2.modify widget**
147 147  
148 -We repeat the steps of screen1 in screen2. Then we get screen2 as shown in image 8.
150 +The area for modifying widgets is called "Inspector". There are four parts in the "Inspector" tab. We use three of them more frequently, excluding "COMPONENT". The second part is aimed at adjusting the layout, size, position, alignment, flags, and states, etc. of widgets. The name of the second part indicates the type of widget it is representing, and in image 6, it is "BUTTON".
149 149  
150 -[[image:1727229715361-392.png]]
152 +[[image:1727485118799-984.png]]
151 151  
152 - image 8 create a UI(4)
154 + image 6 the button widget's "Inspector" tab
153 153  
154 -Finally, we add click event for screen change to button1 in screen1(shown in image 9) and button2 in screen2.
156 +Second part: "Layout" means a auto position-management for widgets contained in the parent widget. "Transform" includes size, position and align modification.
155 155  
156 -[[image:1727229740592-843.png]]
158 +[[image:1727485251053-655.png]]
157 157  
158 - image 9 create a UI(5)
160 +image 7 the button widget's "BUTTON" tab
159 159  
160 -The event settings of button1 are as image 10 shown. The event adding operation of button2 is similar to button1.
162 +Third part: It is an area of style setting.
161 161  
162 -[[image:1727229760857-521.png]]
164 +Fourth part: It is an area for adding events. In image 8, it is adding a click event to a button. If the button is clicked after the click event is added, the current screen will fade into another specified screen, and the switching process will last 500ms.
163 163  
164 - image 10 create a UI(6)
166 +[[image:1727485480434-713.png||height="395" width="290"]]
165 165  
168 +
169 +
170 + image 8 add event for button
171 +
172 +**3.change label widget content**
173 +
174 +Modify the content in text, the text content of label widget will be changed accordingly.
175 +
176 +[[image:image-20240928090825-1.png||height="327" width="391"]]
177 +
178 + image 9 modify text content of label widget
179 +
180 +**4.Add image into project**
181 +
182 +To use the image widget, you should first add an image to your project. The image format must be PNG, and its resolution should not exceed 800x480 pixels. There are two ways to add an image file. One way is to move your image into the folder "…/squareline project/assets/", as shown in image 10. The other way is to click the "ADD FILE INTO ASSETS" button, then select an image from your computer to import. After adding, you can see the image in the "assets" area in SquareLine Studio, as demonstrated in image 11.
183 +
184 +[[image:image-20240928113424-9.png||height="355" width="505"]]
185 +
186 + image 10 add image file into SquareLine Studio project
187 +
188 +[[image:image-20240928114139-10.png||height="559" width="810"]]
189 +
190 + image 11 use image widget in SquareLine Studio
191 +
192 +**5.The relationship between widgets**
193 +
194 +There are two common relationships between widgets: one is parallel, the other is parent-child. The parallel relationship means that widgets' relative position is based on a collective object of reference. In parent-child relationship, the parts of the child object that are outside the boundaries of the parent object are not visible by default. Therefore, we need to adjust the position of the child object so that it falls within the range of the parent object, allowing it to be seen as illustrated in image 13.
195 +
196 +[[image:1727486567182-334.png||height="318" width="278"]]
197 +
198 +image 12 move label1 to make label1 widget be a child of button1 widget(1)
199 +
200 +[[image:image-20240928112001-8.png||height="431" width="796"]]
201 +
202 + image 13 move label1 to make label1 widget be a child of button1 widget(2)
203 +
204 +**6.Preview the final effect**
205 +
206 +An advantage of this kind of software is that you can edit the UI with quick previews. In other words, it provides a way of combining graphical programming with simulation immediately.
207 +
208 +[[image:1727487368023-281.png]]
209 +
210 + image 14 click on the triangle icon to start or end the simulation
211 +
212 +For more detailed usage, please visit the official link: [[SquareLine Studio 1.4.2 Documentation ~| SquareLine Studio>>url:https://docs.squareline.io/docs/squareline/]].
213 +
214 +
166 166  == 2.4 Integrate UI Code to ESP-IDF Project ==
167 167  
168 168  To achieve the integrating, we first need to export the UI code, then make some modifications, and finally relocate the UI code to a specific position within the project.
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169 169  
170 170  [[image:1727229798126-306.png]]
171 171  
172 - image 11 export UI file
221 + image 15 export UI file
173 173  
174 -[[image:1727229821582-258.png]]
223 +[[image:1727229821582-258.png||height="333" width="662"]]
175 175  
176 - image 12 exported UI file
225 + image 16 exported UI file
177 177  
178 -Create a empty directory entitled ‘ui’ in path “basic_prj/app_components/ui/”, and then copy all UI code exported to this directory.
227 +Create a empty directory entitled "ui" in path "basic_prj/app_components/ui/", and then copy all UI code exported to this directory.
179 179  
180 -[[image:1727229845835-509.png]]
229 +[[image:1727229845835-509.png||height="165" width="582"]]
181 181  
182 - image 13 open CMakeLists.txt
231 + image 17 open CMakeLists.txt
183 183  
184 -[[image:1727229892636-154.png]]
233 +[[image:1727229892636-154.png||height="521" width="407"]]
185 185  
186 - image 14 modify CMakeLists.txt
235 + image 18 modify CMakeLists.txt
187 187  
188 188  The last step of integrating is adding two lines of code in main.c file.
189 189  
190 190  [[image:1727229926561-300.png]]
191 191  
192 - image 15 add “ui.h”
241 + image 19 add "ui.h"
193 193  
194 194  [[image:1727229955611-607.png]]
195 195  
196 - image 16 add “ui_init()”
245 + image 20 add "ui_init()"
197 197  
198 -== 2.5 Test Result ==
247 +== 2.5 Brief introduction of hello world project ==
199 199  
249 +The project consists of two screens. The first screen displays the company's logo, the project name, and a button to navigate to the next screen. The second screen presents some information about this HMI screen product through an image and includes a button to return to the previous screen.
250 +
251 +(% class="wikigeneratedid" %)
252 +== 2.6 Test Result ==
253 +
200 200  By pressing the button lying bottom right, the screen can switch to another as expected. This indicates that the UI file has been successfully integrated into the project and is now effective.
201 201  
202 -[[image:1727229990795-405.png]]
256 +[[image:1727488067077-684.png||height="402" width="574"]]
203 203  
204 - image 17 screen1
258 + image 21 screen1
205 205  
206 -[[image:1727230012478-930.png]]
260 +[[image:1727488157579-949.png||height="397" width="572"]]
207 207  
208 - image 18 screen2
262 + image 22 screen2
209 209  
210 210  = 3. Example Project 1: LoRa Central Display =
211 211  
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