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140 140  === 2.2.2 Install SquareLine Studio ===
141 141  
142 142  
143 -Download and install the latest version of [[SquareLine Studio>>https://squareline.io/downloads#lastRelease]] on your computer. It supports Windows, Linux, and Mac OS. The software version we are using here is 1.5.0. See the image below.
143 +Download and install the latest version of [[SquareLine Studio>>https://squareline.io/downloads#lastRelease]] on your computer. It supports Windows, Linux, and Mac OS. The software version we are using here is 1.4.2.
144 144  
145 145  [[image:squareline.io_downloads.png]]
146 146  
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156 156  == 2.3 Simple usage of SquareLine Studio and exporting UI code ==
157 157  
158 158  
159 -Start the SquareLine Studio. The **launcher screen** appears as shown in the below image. You can create a new project by clicking **Create** in the top menu. Then select the **Desktop** tab. Select the development platform, **Eclipse with  SDL for development on PC**.
159 +After launching and logging into the software, create a new project as shown in Image 2.
160 160  
161 -* In the **PROJECT SETTINGS**, select **LVGL version **as **8.3.11** and **Resolution** as **800** x **480**.
162 -* Select the **CREATE **button to create the new project with the selected settings.
161 +* Select the major **LVGL** version as **8.3**.
162 +* Select the **Desktop** tab.
163 +* Select  **Eclipse with  SDL for  development on PC**:
164 +* In the **PROJECT SETTINGS**, select **LVGL version** **8.3.11**
165 +* Select the **CREATE **button.
163 163  
167 +[[image:image-20240928103357-2.png||height="680" width="708"]]
164 164  
165 -[[image:squareline-studio-launcher-screen.png]]
169 + Image 2: Creating a new SquareLine project
166 166  
167 167  
172 +Next, you need to configure some settings for this project. By clicking in the specified order shown in Image 3, you will be directed to the page displayed in Image 4.
168 168  
169 -Next, you need to configure some additional settings for this project. To do so, select** File  -> Project Settings** as shown in the image below.
174 +* Select** File  -> Project Settings**
170 170  
171 171  [[image:1727229582471-566.png]]
172 172  
178 + Image 3 accessing project settings
173 173  
174 -In the **PROJECT SETTINGS** dialog box, configure/modify the project settings as shown in the image below.
175 175  
181 +In the PROJECT SETTINGS dialog box, configure/modify the project settings:
182 +
176 176  * **UI Files Export Root**: Select a folder on your computer to store the UI files.
177 177  * **LVGL Include Path**: Set this to **lvgl.h**
178 -* Click on the **APPLY CHANGES** button.
185 +* **Click on the APPLY CHANGES button.**
179 179  
180 180  [[image:image-20240928105309-4.png||height="526" width="556"]]
181 181  
189 + Image 4 Configure/modify project settings
182 182  
183 -Now you can start building the user interface. Follow the steps below:
184 184  
192 +Now you can start building the sample UI. Follow the steps below:
185 185  
194 +
186 186  === **Add widgets** ===
187 187  
188 188  
189 -To add a widget, navigate to the **Widgets** panel, and then click on the widget you want to add to the screen. You can reposition the widgets in the screen area by clicking and dragging them. Now add a **Label**, **Button**, and **Image** as shown in the image below. The added widgets are also displayed in the **Hierarchy **panel.
198 +To add widgets navigate to the **Widgets** area, then click on the widgets you want to add. The selected widgets will be added to the screen. You can reposition the widgets in the screen area by clicking and dragging them.
190 190  
200 +Add a Label, Button, and Image to the screen as shown in **Image 5**.
201 +
191 191  [[image:image-20240928111412-6.png||height="526" width="864"]]
192 192  
204 + Image 5: Add widgets
193 193  
194 -Then click the **Screen **widget to add the second screen. After adding the second screen, it will appear in the Screens panel as **Screen2**.
195 195  
196 -[[image:Screenshot 2024-12-24 140459.png||height="278" width="290"]]
197 -
198 198  === **Modify widget properties** ===
199 199  
200 200  
201 -The area for modifying widgets is called the **Inspector** panel. The Inspector panel consists of four sections: **COMPONENT**, **<WIDGET>**, **STYLE SETTINGS**, and **EVENTS**, as shown in the image below. The second section allows you to adjust a widget's layout, size, position, alignment, flags, states, and more. When you select a widget on the screen, the name of this section changes to match the name of the selected widget.
210 +The area for modifying widgets is called the **Inspector** tab. The Inspector tab consists of four sections: **COMPONENT**, **<WIDGET>**, **STYLE SETTINGS**, and **EVENTS**, as shown in Image 6.
202 202  
212 +The second section allows you to adjust a widget's layout, size, position, alignment, flags, states, and more. When you select a widget on the screen, the name of this section changes to match the name of the selected widget.
213 +
203 203  [[image:1727485118799-984.png]]
204 204  
216 + Image 6: The button widget's "Inspector" tab
205 205  
218 +
206 206  ==== **Changing the Button properties** ====
207 207  
208 208  
209 -Click the **Button **you have added to the screen. Under the **Layout** you can change the button's position and size. Use the following settings:
222 +Click the Button.
210 210  
211 -* **Flex Flow**: No Layout
212 -* **Transform**:
213 -** **X**: 331 px
214 -** **Y**: 203 px
215 -** **Width**: 100 px
216 -** **Height**: 50 px
217 -** **Align**: CENTER
224 +Under the "Layout" you can change the button's position and size.
218 218  
219 219  [[image:1727485251053-655.png]]
220 220  
228 +Image 7: The button widget's "BUTTON" tab
221 221  
230 +
222 222  Next, add a click event to the button. When the button is clicked, an event should trigger to change the current screen (Screen1) to a new screen (Screen2) with a fade effect and the transition from Screen1 to Screen2 should take 500ms.
223 223  
224 -* Click **ADD EVENT** button. A new section will appear to configure this event.
233 +* Click **ADD EVENT** button.
234 +* Select **CLICKED** under the Trigger.
235 +* Select **Screen2** from **Screen to**.
236 +* Select **FADE ON** from **Fade mode**.
237 +* Enter **500** in the **Speed** text box.
238 +* Finally, click **ADD** button.
225 225  
226 -[[image:Screenshot 2024-12-24 134937.png||height="80" width="290"]]
227 -
228 -* Select **CLICKED** from the dropdown under **Trigger**. Choose **CHANGE SCREEN** under **Action**, then click the **ADD** button. A new section will appear to configure the action.
229 -
230 -[[image:Screenshot 2024-12-24 134818.png||height="222" width="290"]]
231 -
232 -* Select **Screen2** under **Screen to**. Select **FADE ON** from **Fade mode**. The default value **500** means the transition takes 500 milliseconds to appear the Screen2.
233 -* Finally, click the **ADD** button.
234 -
235 235  [[image:1727485480434-713.png||height="395" width="290"]]
236 236  
237 237   Image 8: Add an event for the button
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240 240  ==== **Changing the label properties** ====
241 241  
242 242  
243 -Click the Label you have added to the screen. Under the **Label** section, type "**Click for Detail**" in the **Text** textbox.
248 +Click the label. Under the **Label** section, type "Click For Detail" in the **Text** textbox.
244 244  
245 245  [[image:image-20240928090825-1.png||height="327" width="391"]]
246 246  
252 + Image 9:  Modify text of label widget
247 247  
248 -Once you enter the text, it will immediately appear on the label.
249 249  
250 -
251 251  ==== **Changing image properties** ====
252 252  
253 253  
254 -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.
258 +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.
255 255  
256 -One way is to move your image into the folder "…/squareline project/assets/", as shown in the image below.
257 -
258 258  [[image:image-20240928113424-9.png||height="355" width="505"]]
259 259  
262 + image 10 add image file into SquareLine Studio project
260 260  
261 -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**" panel in SquareLine Studio, as shown in the image below.
262 -
263 263  [[image:image-20240928114139-10.png||height="559" width="810"]]
264 264  
266 + image 11 use image widget in SquareLine Studio
265 265  
268 +
266 266  ==== **The relationship between widgets** ====
267 267  
268 268  
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274 274  [[image:1727486567182-334.png||height="318" width="278"]]
275 275  
276 276  
277 -Move the label, **Label1** to make it a child of **Button1** as shown in the image below.
280 +Move **Label1** to make it a child of **Button1**. See Image 13.
278 278  
279 279  [[image:image-20240928112001-8.png||height="431" width="796"]]
280 280  
284 + Image 13: Move Label1 to make it a child of Button1.
281 281  
282 -Then set the **X** and **Y** position of the label to **0** as shown in the image below. The label will appear on the button. If you move the button on the screen, the label will move along with it as part of the button.
283 283  
284 -[[image:Screenshot 2024-12-24 144005.png||height="360" width="290"]]
285 -
286 -
287 287  ==== **Preview the screen** ====
288 288  
289 289  
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