DelphiVCL4Python-main.zip

DelphiVCL4Python - VCL.ActivityIndicator Sample[]() # DelphiVCL4Python - VCL.ActivityIndicator Sample This is a sample that shows the use of the [TActivityIndicator](http://docwiki.embarcadero.com/Libraries/en/Vcl.WinXCtrls.TActivityIndicator) control directly from a Python script. ## Contents * [1 Location](#Location) * [2 Description](#Description) * [3 How to Use the Sample](#How_to_Use_the_Sample) * [4 Implementation](#Implementation) * [4.1 ActivityIndicatorForm](#TActivityIndicatorForm) * [5 Uses](#Uses) * [6 See Also](#See_Also) ## Location You can find the **ActivityIndicator** sample project at: * **GitHub Repository for DelphiVCL4Python:** [https://github.com/Embarcadero/DelphiVCL4Python/tree/main/samples/ActivityIndicator](https://github.com/Embarcadero/DelphiVCL4Python/tree/main/samples/ActivityIndicator) ## Description This application demonstrates the [ActivityIndicator](http://docwiki.embarcadero.com/Libraries/en/Vcl.WinXCtrls.TActivityIndicator) control and shows how to modify its various properties directly from a Python script. The application uses the following controls: * `ai`: The activity indicator. * `grp_indicator_size`: Sets the [size](http://docwiki.embarcadero.com/Libraries/en/Vcl.WinXCtrls.TActivityIndicator.IndicatorSize) of the activity indicator. * `grp_indicator_color`: Sets the [color](http://docwiki.embarcadero.com/Libraries/en/Vcl.WinXCtrls.TActivityIndicator.IndicatorColor) of the activity indicator. * `grp_indicator_type`: Sets the [type](http://docwiki.embarcadero.com/Libraries/en/Vcl.WinXCtrls.TActivityIndicator.IndicatorType) of the activity indicator. * `trk_frame_delay`: Sets the [frame delay](http://docwiki.embarcadero.com/Libraries/en/Vcl.WinXCtrls.TActivityIndicator.FrameDelay) of the activity indicator. * `chk_animate`: Toggles the [Animate](http://docwiki.embarcadero.com/Libraries/en/Vcl.WinXCtrls.TActivityIndicator.Animate) property of the activity indicator. * `cbx_form_color`: Sets the [Color](http://docwiki.embarcadero.com/Libraries/en/Vcl.Forms.TForm.Color) of the form if the current style is `Windows`. * `cbx_vcl_styles`: A combo box that allows you to change the style of the application. You can choose between any style that is active in the [Application Appearance - Custom Styles](http://docwiki.embarcadero.com/RADStudio/en/Application_Appearance) options for this project. ## How to Use the Sample 1. We strongly recommend using PyScripter IDE: * SourceForge: https://sourceforge.net/projects/pyscripter/ * GitHub: https://github.com/pyscripter/pyscripter 2. Navigate to the location given above and open: * PyScripter IDE: **activityindicator.py**. 3. Under **Tools->Tools** choose **Install Packages with pip**. 4. In the dialog box **Package Name** type **delphivcl**. 5. Press **Ctrl + F9** or choose **Run > Run**. 6. Change the different options on the form and test the functionality of the activity indicator. Modify color, size, animation speed and the type of the activity indicator. ## Implementation ### ActivityIndicatorForm On initialization **__init__**, the `__create_comps` creates all the visual components and attatch them to the `ActivityIndicatorForm` form. The `__config_comps` set all visual components properties. The application defines the following event handlers: * `__grp_indicator_type_click`: Changes the [type](http://docwiki.embarcadero.com/Libraries/en/Vcl.WinXCtrls.TActivityIndicator.IndicatorType) of the activity indicator. * `__grp_indicator_size_click`: Changes the [size](http://docwiki.embarcadero.com/Libraries/en/Vcl.WinXCtrls.TActivityIndicator.IndicatorSize) of the activity indicator. * `__grp_indicator_color_click`: Changes the [color](http://docwiki.embarcadero.com/Libraries/en/Vcl.WinXCtrls.TActivityIndicator.IndicatorColor) of the activity indicator. * `__cbx_form_color_change`: Changes the [size](http://docwiki.embarcadero.com/Libraries/en/Vcl.WinXCtrls.TActivityIndicator.IndicatorSize) of the activity indicator. * `__trk_frame_delay_change`: Changes the [frame delay](http://docwiki.embarcadero.com/Libraries/en/Vcl.WinXCtrls.TActivityIndicator.FrameDelay) of the activity indicator. * `__cbx_vcl_styles_change`: Sets the style for the application. * `__chk_animate_click`: Enables or disables the animation of the activity indicator. ## Uses * [Vcl.WinXCtrls](http://docwiki.embarcadero.com/Libraries/en/Vcl.WinXCtrls) * [Vcl.Themes](http://docwiki.embarcadero.com/Libraries/en/Vcl.Themes) * [Vcl.ExtCtrls](http://docwiki.embarcadero.com/Libraries/en/Vcl.ExtCtrls) * [Vcl.StdCtrls](http://docwiki.embarcadero.com/Libraries/en/Vcl.StdCtrls) * [Vcl.ComCtrls](http://docwiki.embarcadero.com/Libraries/en/Vcl.ComCtrls) * [Vcl.Dialogs](http://docwiki.embarcadero.com/Libraries/en/Vcl.Dialogs) ## See Also * [Vcl.WinXCtrls.TActivityIndicator](http://docwiki.embarcadero.com/Libraries/en/Vcl.WinXCtrls.TActivityIndicator) * [VCL Styles Overview](http://docwiki.embarcadero.com/RADStudio/en/VCL_Styles_Overview) * [Including Bi-directional Functionality in Applications](http://docwiki.embarcadero.com/RADStudio/en/Including_Bi-directional_Functionality_in_Applications) * [Vcl.Controls.TControl.BiDiMode](http://docwiki.embarcadero.com/Libraries/en/Vcl.Controls.TControl.BiDiMode) * [Application Appearance](http://docwiki.embarcadero.com/RADStudio/en/Application_Appearance)