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85	85	* Smart Cities
86	86	* Smart Factory
87	87
88		-= 2.  Getting Started with Hello World =
	88	+= 2.  Getting Start with Hello World =
89	89
90	90	== 2.1  About this demo ==
91	91
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.
	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.
93	93
94	94	== 2.2  Install Software Running Environment ==
95	95
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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:image-20240928110211-5.png||height="508" width="866"]]
	104	+[[image:1727229396732-319.png]]
105	105
106	106	image 1 ESP-IDF extension install
107	107
...	...	@@ -118,9 +118,9 @@
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	120
121		-[[image:image-20240928103357-2.png||height="680" width="708"]]
	121	+[[image:1727233636007-933.png]]
122	122
123		- image 2 create a SquareLine project
	123	+ image 2 create a SquareLine project
124	124
125	125	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.
126	126
...	...	@@ -128,85 +128,42 @@
128	128
129	129	image 3 project settings
130	130
131		-[[image:image-20240928105309-4.png||height="526" width="556"]]
	131	+[[image:1727229618724-758.png]]
132	132
133	133	image 4 modify project settings
134	134
135		-Now we can start to use this software. Here are some usage information for this software.
	135	+Now we can start to use this software. The steps for creating this UI are shown in image 5-10.
136	136
137		-**1.add widget**
	137	+[[image:1727229653254-680.png]]
138	138
139		-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	+ image 5 create a UI(1)
140	140
141		-[[image:image-20240928111412-6.png||height="526" width="864"]]
	141	+[[image:1727231038705-173.png]]
142	142
143		- image 5 add widgets
	143	+ image 6 create a UI(2)
144	144
145		-**2.modify widget**
	145	+[[image:1727229682537-381.png]]
146	146
147		-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".
	147	+ image 7 create a UI(3)
148	148
149		-[[image:1727485118799-984.png]]
	149	+We repeat the steps of screen1 in screen2. Then we get screen2 as shown in image 8.
150	150
151		- image 6 the button widget's "Inspector" tab
	151	+[[image:1727229715361-392.png]]
152	152
153		-Second part: "Layout" means a auto position-management for widgets contained in the parent widget. "Transform" includes size, position and align modification.
	153	+ image 8 create a UI(4)
154	154
155		-[[image:1727485251053-655.png]]
	155	+Finally, we add click event for screen change to button1 in screen1(shown in image 9) and button2 in screen2.
156	156
157		-image 7 the button widget's "BUTTON" tab
	157	+[[image:1727229740592-843.png]]
158	158
159		-Third part: It is an area of style setting.
	159	+ image 9 create a UI(5)
160	160
161		-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 as shown in image 8, the current screen will fade into another specified screen, and the switching process will last 500ms.
	161	+The event settings of button1 are as image 10 shown. The event adding operation of button2 is similar to button1.
162	162
163		-[[image:1727485480434-713.png||height="395" width="290"]]
	163	+[[image:1727229760857-521.png]]
164	164
165		- image 8 add event for button
	165	+ image 10 create a UI(6)
166	166
167		-**3.change label widget content**
168		-
169		-Modify the content in text as shown in image 9, the text content of label widget will be changed accordingly.
170		-
171		-[[image:image-20240928090825-1.png||height="327" width="391"]]
172		-
173		- image 9 modify text content of label widget
174		-
175		-**4.Add image into project**
176		-
177		-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.
178		-
179		-[[image:image-20240928113424-9.png||height="355" width="505"]]
180		-
181		- image 10 add image file into SquareLine Studio project
182		-
183		-[[image:image-20240928114139-10.png||height="559" width="810"]]
184		-
185		- image 11 use image widget in SquareLine Studio
186		-
187		-**5.The relationship between widgets**
188		-
189		-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.
190		-
191		-[[image:1727486567182-334.png||height="318" width="278"]]
192		-
193		-image 12 move label1 to make label1 widget be a child of button1 widget(1)
194		-
195		-[[image:image-20240928112001-8.png||height="431" width="796"]]
196		-
197		- image 13 move label1 to make label1 widget be a child of button1 widget(2)
198		-
199		-**6.Preview the final effect**
200		-
201		-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.
202		-
203		-[[image:1727487368023-281.png]]
204		-
205		- image 14 click on the triangle icon to start or end the simulation
206		-
207		-For more detailed usage, please visit the official link: [[SquareLine Studio 1.4.2 Documentation ~| SquareLine Studio>>url:https://docs.squareline.io/docs/squareline/]].
208		-
209		-
210	210	== 2.4 Integrate UI Code to ESP-IDF Project ==
211	211
212	212	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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213	213
214	214	[[image:1727229798126-306.png]]
215	215
216		- image 15 export UI file
	173	+ image 11 export UI file
217	217
218		-[[image:1727229821582-258.png||height="333" width="662"]]
	175	+[[image:1727229821582-258.png]]
219	219
220		- image 16 exported UI file
	177	+ image 12 exported UI file
221	221
222		-Create a empty directory entitled "ui" in path "basic_prj/app_components/ui/", and then copy all UI code exported to this directory.
	179	+Create a empty directory entitled ‘ui’ in path “basic_prj/app_components/ui/”, and then copy all UI code exported to this directory.
223	223
224		-[[image:image-20240928144830-11.png]]
	181	+[[image:1727229845835-509.png]]
225	225
226		- image 17 open CMakeLists.txt
	183	+ image 13 open CMakeLists.txt
227	227
228		-[[image:1727229892636-154.png||height="521" width="407"]]
	185	+[[image:1727229892636-154.png]]
229	229
230		- image 18 modify CMakeLists.txt
	187	+ image 14 modify CMakeLists.txt
231	231
232	232	The last step of integrating is adding two lines of code in main.c file.
233	233
234	234	[[image:1727229926561-300.png]]
235	235
236		- image 19 add "ui.h"
	193	+ image 15 add “ui.h”
237	237
238	238	[[image:1727229955611-607.png]]
239	239
240		- image 20 add "ui_init()"
	197	+ image 16 add “ui_init()”
241	241
242		-== 2.5 Brief introduction of hello world project ==
	199	+== 2.5 Test Result ==
243	243
244		-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.
245		-
246		-== 2.6 Test Result ==
247		-
248	248	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.
249	249
250		-[[image:1727488067077-684.png||height="402" width="574"]]
	203	+[[image:1727229990795-405.png]]
251	251
252		- image 21 screen1
	205	+ image 17 screen1
253	253
254		-[[image:1727488157579-949.png||height="397" width="572"]]
	207	+[[image:1727230012478-930.png]]
255	255
256		- image 22 screen2
	209	+ image 18 screen2
257	257
258	258	= 3. Example Project 1: LoRa Central Display =
259	259

image-20240928144830-11.png

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