Please refer to the wiki page for installation and usage details:

GUIslice Builder - Documentation

The GUIslice Builder is a standalone desktop application that is more than a layout tool for your UI. It's designed as Low Code GUI Generator for User Interfaces that make use of GUIslice API.

The cross-platform utility includes a WYSIWYG graphical editor that enables drag & drop placement of UI elements. Once a GUI has been laid out, the Builder can then generate a fully functional GUIslice Graphical UI complete with plug-in points for your custom application.

The GUIslice API framework code can handle hardware like Arduino, ESP8266, ESP32 and more. It supports Graphic libraries like Adafruit's GFX, M5Stack, TFT_eSPI and LINUX with a wide variety of TFT Display Drivers and combinations of Touch support chips.

The generated output code (*.c, *.ino, *_GSLC.h) includes all of the necessary defines, UI storage elements and initialization in addition to the placement of the UI elements. This will greatly improve the ease in creating a new Graphical Application.

You can find Example project files inside GUIslice/examples/builder

The Software is not designed for use in devices or situations where there may be physical injury if the Software has errors.

Note that the Builder executables and User Guide are attached to the latest GUIslice Builder Repository Release Notes:

The Builder source code is located in this repository ImpulseAdventure/GUIslice-Builder

• Build instructions can be found in BUILD.txt

Users can now avoid auto-generated code within Text and Image Button callbacks and add their own code that will be inserted during each code generation. The new property is called Custom Code and is optional. This property, if used, will then make the properties Jump Page ENUM, Popup Page Enum, and Hide Popup Page? read-only. See the new User Guide 4.19 Text Button for example.

• Issue 198 Request: Add a feature for BTN to execute a custom code.

Scaling was using incorrect ratio for y coordinates.

Scaling now supports scaling non-builtin (glcd) fonts (The glcd fonts are too far apart to scale,8,16,24,32). The Builder will now attempt to find a font that can scale to the correct ratio or the closest it can find. Nevertheless, Users may still need to manually change fonts.

Testing showed that the Line Element would cause crashes if scaled. This is now fixed.

Added new scaling command in the layout tab to allow automatic updating of elements x,y,width and height due to TFT screen display change of size. Also, you can now change the Scrollbar width and thumb sizes for Listboxes and Textboxes. Our User Guide has been updated accordingly.

• Issue 194 Request: Scroll bar set width and thumb size in textbox and listbox
• Issue 192 Request: Project Screen Size change with change of all existed elements

• Issue #190 Input Elements Height/Width reset to default when moved

Now supports saving the current project's zoom factor inside the *.prj file so it can be restored upon opening on the project file.

• Issue #188 Serialize zoom factor on save

• Issue #184 GUIslice Builder crash when changing Minimum Value at Ramp Gauge

• Issue #147 Allow multiline text for text button NOTE: Sizing of a Text button using multiple lines of text is the users responsiblity. You will need to set the height and width manually. Ending each line inside the Label with "\n". Example, "line1\nline2\nline3". The Builder will remove each \n and replace with a decimal 10 (newline) when you press enter key.

Yet another fix for critical Log4Shell vulnerability inside Apache Log4j. The vulnerability applies 2.0 to 2.15.0 of Apache Log4j.

Fix for critical Log4Shell vulnerability inside Apache Log4j. The vulnerability was publicly disclosed via GitHub on December 9, 2021. Versions 2.0 and 2.14.1 of Apache Log4j have been impacted.

GUIslice 0.17 added improved support for external inputs such as physical buttons, encoders or pins. Users can now traverse and edit most widgets in the GUI using external inputs. This feature required minor changes to Builder. Some elements now require a slightly larger margin around them (ie. 1px) to accommodate a potential focus frame. For example, between a slider and the listbox.

Added support for UTFT library using Target Platform "utft". Full native font support for fonts downloaded from UTFT Fonts. Simply download and drop them into GUIsliceBuilder/fonts/utft. The Builder ships with the UTFT DefaultFonts (SmallFont, BigFont, and SevenSegNumFont) installed. See User Guide section 5.7 Adding Fonts for more details.

• Issue #175 Inserting a unicode character into text field caused crash
• Issue #174 Crash when input non-ascii chars when you first didn't change to font that supports unicode. Note you still must select an appropiate font before enterring characters or they will appear as blanks.
• Issue #174 Crash when deleting a base page.
• Issue #174 Crash if you are inside color chooser and click on blank space inside recent colors box.
• GUIslice discussion -> xTextBox - writing to a specific character position #392. Setting a Grid positions minor or major to a width or height of zero caused crashes.

With this release the Builder becomes a true WYSIWYG editor for most platforms. The Builder now reads and parses your actual Platform Font header and c files and renders them inside the Builder. This native font support will now be able to give you accurate sizing and positioning information for supported fonts. Plus your text will be now displayed exactly as it will appear on your target TFT display.

The Native Font support includes, Adafruit's Builtin GLCD fonts, and Adafruit's GFX compatable fonts, and Teensy ILI9341_t3 fonts. This Native Font support includes the ability to add your own fonts to the Builder simply by dropping them into the proper folders. You may also tell the Builder to simulate fonts it doesn't directly support.

See the User Guide for more information about font handling and how to add your custom fonts.

GUIslice API 0.16.0 has upgraded the Keypad support. This is a breaking change for the API so the Builder will now require running with GUIslice API 0.16.0 and higher. For further information on keypads refer to the wiki page Custom KeyPads

The Builder has added support for ctrl-Z for Undo and ctrl-Y for Redo.

• Issue 169 - Textbox double quotes are not escaped in generated code
• Issue 172 - Fill enable , Disable not working with text input

Added support to group toggle buttons.

• Issue 157 - Target platform linux fails to generate callback for seekbar
• Issue 167 - Fill enable , Disable not working with text input
• Issue 168 - Image Button and Toggle Button Jump page ENUM not generating code

Added support for Image Buttons to behave as a toggle button. Simply set Property View: Toggle? = true this will then use the new GUIslice API XToggleImgbtn control.

• Bug Fix Character Map causes fatal crash issue #165

• Bug Fix for DEL button on keyboard causes crash issue #154
• Bug Fix for Copy paste of Image Button causes crash #155

Replaced Ribbon with a simplier design using JRibbonBar provided by Csekme Krisztián. His github project is at: JRibbonBar

Hopefully this will fix the crashes and burns we have been having on Apple's OSX and various odd cursor behaviors that have occurred on different Linux platforms.

Also added two additional Themes: Solarized Dark and Light themes.

Our User Guide has been updated with the new UI layout.

Added support for TFT_eSPI smoothfonts (*.vlw). Google's Dosis Bold and NotoSans Bold is built in.

You may add your own vlw fonts by following the updated User Guide chapter 5.7 Adding Fonts and Appendix G Creating VLW Fonts.

• Bug No. 205 No CallBack from Checkbox using Flash API issue #347

• Bug No. 204 Crash occurs while selecting NotoLatin1 when size of font is > 28 issue #143
• Bug No. 203 Box using Flash API can't do code gen for Draw callback
• Bug No. 202 Draw function selected for Box frame the rounded property should be disabled API issue #326

Added CharacterMap dialog to "Text" propery fields for UIElements Text, Text Button, Text Input, Spinner, and Number Input.

This feature will allow you access to graphics characters previousily hidden in Adafruit's classic (Builtin) fonts and other fonts. You can also access ISO8859 international characters using a newly added NotoLatin1 font.

First set your desired font then invoke CharacterMap by right clicking on the "Text" property and selecting CharacterMap. Select your characters one at a time and then press copy to append them to your text field.

The User Guide has been updated documenting this new feature.

The UI Element Spinner has been upgraded to support changing the Increment and Decrement Arrow characters using the API call gslc_ElemXSpinnerSetChars().

• Bug No. 201 Text button frame cannot be disabled issue #139

• Bug No. 200 New Keypad support causes input field button case-statement to be deleted and recreated
• Bug No. 199 Sizing of rect for Text with margin doesn't include space on right-side

GUISlice crashing after clicking generate code issue #134

• Bug No. 198 Assigning storage to text field gives incorrect height API issue #292

• Bug No. 197 Crash opening project with screen larger that 320x240
• Bug No. 196 Dup gslc_ElemSetTxtCol when text not set to the default color

• Bug No. 195 Enhancement - Add Top/Bot to Text Button text alignment fields #127
• Bug No. 194 gslc_GetImageFromRAM creates const pointer issue #126
• Bug No. 193 codegen fails to work for GSLCX_CHECKBOX_STYLE_ BOX or ROUND issue #128
• Bug No. 191 Crash if slider min=max
• Bug No. 189 Add shortcut ctrl+z for UnDo
• Bug No. 187 App window not controllable with Java built-in themes issue #112
• Bug No. 98 Text element "Fill Enabled=false" doesn't render with transparency