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lynkfs last won the day on April 15

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About lynkfs

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  1. I don't see much of an advantage to be honest. If the ide is changed to allow both versions, then that negates any code problems of course. There is however also documentation (Primoz book) and search to consider. Personally I don't use TButton etc (as that was your question).
  2. lynkfs

    css styling

    Thanks There are however a couple of minor / major (?) caveats doing it like this : I made up some more metro components, and it becomes apparent that it is unavoidable to use more modifier classes: TagStyle.Add('primary image-button outline icon-left rounded etc). this type of styling is not supported by the visual designer in the ide, so styling can be done in code only. Even though only one-liners (TagStayle.Add( ) (most rtl components (but not all) have a component, a border and a background theme class baked in. Not all of these can be reused, so sometimes the border and/or background classes may end up being empty) probably the second bullet (visual designer) is the most important one for future enhancements
  3. lynkfs

    css styling

    Easy to use... Suppose we want to develop a Metro theme To take buttons as an example, the official metro style has a number of predefined buttons : To replicate the above, and do it in such a way that : the component code (TW3Button) does not need any change the standard theming classes still apply (TW3Button TW3ButtonBorder TW3ButtonBackground), but with different content of course while allowing for these different predefined component versions is to do something like this procedure TForm1.InitializeForm; begin inherited; // this is a good place to initialize components var Button1 : TW3Button := TW3Button.Create(self); Button1.SetBounds(20,20,83,40); Button1.Caption := 'Default'; var Button2 : TW3Button := TW3Button.Create(self); Button2.SetBounds(110,20,83,40); Button2.Caption := 'Primary'; Button2.TagStyle.Add('primary'); var Button3 : TW3Button := TW3Button.Create(self); Button3.SetBounds(200,20,83,40); Button3.Caption := 'Secondary'; Button3.TagStyle.Add('secondary'); var Button4 : TW3Button := TW3Button.Create(self); Button4.SetBounds(290,20,83,40); Button4.Caption := 'Success'; Button4.TagStyle.Add('success'); end; result : with the metro css file for the above looking like this /* ////////////////////////////////////////// // TW3Button (default) ////////////////////////////////////////// */ .TW3Button { font-weight: 400; text-align: center; white-space: nowrap; vertical-align: middle; -webkit-user-select: none; -moz-user-select: none; -ms-user-select: none; user-select: none; border: 1px solid transparent; padding: 0 0.75rem; -webkit-transition: all 0.15s ease-in-out; transition: all 0.15s ease-in-out; background-color: #ebebeb; color: #1d1d1d; cursor: pointer; outline: none; -ms-touch-action: manipulation; touch-action: manipulation; -webkit-appearance: button; /* font-size: 0.875rem; line-height: 34px; height: 36px; */ } .TW3Button:focus, .TW3Button:active { text-decoration: none; -webkit-box-shadow: 0 0 0 3px rgba(228, 228, 228, 0.45); box-shadow: 0 0 0 3px rgba(228, 228, 228, 0.45); } .TW3Button:hover { background-color: rgba(29, 29, 29, 0.1); } .TW3ButtonBackground { } .TW3ButtonBorder { } /* ////////////////////////////////////////// // TW3Button Primary ////////////////////////////////////////// */ .TW3Button.primary { outline-color: #75b5fd; background-color: #0366d6; color: #ffffff; } .TW3Button.primary:hover { color: #ffffff; background-color: #024ea4; border-color: #023671; } .TW3Button.primary:focus, .TW3Button.primary:active { -webkit-box-shadow: 0 0 0 3px rgba(3, 102, 214, 0.45); box-shadow: 0 0 0 3px rgba(3, 102, 214, 0.45); } /* ////////////////////////////////////////// // TW3Button Secondary ////////////////////////////////////////// */ .TW3Button.secondary { outline-color: #b7c6cd; background-color: #607d8b; color: #ffffff; } .TW3Button.secondary:hover { color: #ffffff; background-color: #4b626d; border-color: #36474f; } .TW3Button.secondary:focus, .TW3Button.secondary:active { -webkit-box-shadow: 0 0 0 3px rgba(96, 125, 139, 0.45); box-shadow: 0 0 0 3px rgba(96, 125, 139, 0.45); } /* ////////////////////////////////////////// // TW3Button Success ////////////////////////////////////////// */ .TW3Button.success { outline-color: #adeb6e; background-color: #60a917; color: #ffffff; } .TW3Button.success:hover { color: #ffffff; background-color: #477c11; border-color: #2d4f0b; } .TW3Button.success:focus, .TW3Button.success:active { -webkit-box-shadow: 0 0 0 3px rgba(96, 169, 23, 0.45); box-shadow: 0 0 0 3px rgba(96, 169, 23, 0.45); } see demo (check click and hover states) What do you think ? By the way, this css file is made up by screenscraping, which is actually not too bad / timeconsuming. Alternatively it could also be composed out of relevant Tailwind functions, results would be very similar.
  4. lynkfs

    css styling

    Wow, you guys are funny. The question I had was : what is the easiest way to style Smart components. Smart ships with a couple of standard stylesheets, or themes, so styling is a matter of selecting one of these. To change the styling of a specific component in a theme, just change the css specifications in the stylesheet, either manually or through code. A different topic altogether is to develop new themes. It is not a simple task to f.i. develop a Metro theme stylesheet which covers all of the current Smart visual components. That's why I had a look at externally available css frameworks, to see if any of those would help with developing themes, or even work within the Smart development environment and if they are useful to begin with. I focused on one particular framework : Tailwindcss One of the problems with themes is when it becomes necessary to deviate from it. Say a project has chosen the default theme (default.css), but for some legitimate reason somewhere in the project a standard component has to be styled differently. Example : colour a button green to amplify a positive choice and colour it red to amplify dangerous choices ("do you really want to download these files from an unknown source ?" and then display a green "No" button and a red "Yes" button). It's not that simple to make this actually happen. Lets say we change the styling of the green button (based on the standard button), and opt to do that in code : var Button2 : TW3Button := TW3Button.Create(self); Button2.SetBounds(20,120,150,40); Button2.Caption := 'No'; // Button2.handle.style.background := '#48bb78'; //Button2.Color := clTeal; Button2.handle.style.border := '1px solid #48bb78'; //Button2.Border.Color := clTeal; Button2.handle.style.borderRadius := '0px'; //Button2.borderradius := 0; Button2.handle.style.color := 'white'; // //simulate hover Button2.handle.onmouseover := procedure(event: variant) begin event.target.style.background := 'orange'; end; Button2.handle.onmouseout := procedure(event: variant) begin event.target.style.background := '#48bb78'; end; works sort of ok, but requires a bit of effort Alternatively we can change the stylesheet, so if we opt to do that for the red button then this requires var Button3 : TW3Button := TW3Button.Create(self); Button3.SetBounds(200,120,150,40); Button3.Caption := 'Yes'; // Button3.TagStyle.Clear; Button3.TagStyle.Add('TW3Button TW3ButtonRed'); var cssProperties := 'background-color: red;'; browserapi.document.styleSheets[0].insertRule(".TW3ButtonRed { " + cssProperties + " }", 0); /* .TW3ButtonRed { background-color: red; } */ cssProperties := 'background-color: orange;'; browserapi.document.styleSheets[0].insertRule(".TW3ButtonRed:hover { " + cssProperties + " }", 0); either in code or adding the .TW3ButtonRed and the .TW3ButtonRed:hover manually to the stylesheet Again, works but requires some effort Using the Tailwind css framework, the above would be simplified to //green var Button4 : TW3Button := TW3Button.Create(self); Button4.SetBounds(20,220,150,40); Button4.Caption := 'No'; Button4.handle.className := "bg-green-500 hover:bg-blue-700 px-6 text-white rounded shadow-xl"; //red var Button5 : TW3Button := TW3Button.Create(self); Button5.SetBounds(200,220,150,40); Button5.Caption := 'Yes'; Button5.TagStyle.Clear; Button5.TagStyle.Add("bg-red-500 hover:bg-blue-700 px-6 text-white rounded shadow-xl"); Button1 : standard styling Button2 : changing standard styling in code Button3 : changing standard styling using css Button4/5 : using Tailwind I've probably confused everyone even more now Anyway, these are my thoughts : Tailwind has the advantage that it can style any of the standard Smart components. As such it could be used to make up a f.i. Metro theme. Still a significant task, but doable. Apart from that, I actually quite like Tailwind to style components on a need-to-do basis, their styling functions make the standard SMS buttons, panels, editboxes, memos etc look really good and modern. (A card btw is just a panel with a certain layout, where usually multiple of these panels appear on a form or page.)
  5. lynkfs

    css styling

    I think sometimes I'm very bad at explaining things. I'll respond over the weekend
  6. lynkfs

    css styling

    The point is that using normal Smart components, they can be styled very differently and exactly as you want with just 1 line of code. Try hovering your mouse to see visual changes
  7. lynkfs

    css styling

    Browsers are certainly talented as multi-language processors. They have to understand html, css, javascript, svg and lately web-assembly as a fifth language. XML and Json are format specifiers, but could be borderline categorised as languages as well. Smart elevates javascript to great heights, but sort of leaves the other ones at the periphery. Especially css. Css can be used for a) component styling including colours, fonts etc, b) visual layout of pages/forms and reacting responsively to screen size and orientation and c) interactivity in various forms. Some of this overlaps with the js domain. Smart basically uses css for a) but not for b) or c). Looking at various css frameworks out there, I would categorise these as on one end of the scale there are many UI kit frameworks where the emphasis is on components - buttons, accordions, cards etc. Sometimes as css stand-alone files, sometimes in conjunction with js. Most of these also have functionality for layout purposes, usually based on flexbox or internal grid structures. on the other end of the scale there are frameworks which forego the component focus, but instead provide a large number of elementary styling functions, which can be applied to any component. and many which occupy a space in between This post is about the open source Tailwind framework, belonging in the second category above, just to see how that would work in the Smart environment. Tailwind comes in 2 flavours : a static framework which can be accessed locally or from a cdn, and a more dynamic version. The latter can be tailored dynamically for any specific project and basically needs to be part of the build toolchain. To keep it simple I used the static version. Change the res/app.css reference to the tailwind css file (either just replace it or change the reference in the index.html file). Now any component can be made to use this styling. Because this is not more (or less) than a list of individual styling functions, the use boils down to defining what you want. Tell a story as in "give me a button with a green background, which turns to blue on hover, has rounded corners and white text and a shadow effect which makes it seem floating". In code : W3Button1.handle.className := "bg-green-500 hover:bg-blue-700 text-white rounded shadow-2xl"; The second button in the demo project (see below) has a different story (className sequence), which gives it a totally different look and feel. I kind of like this approach, it works very well with any component, thus also with the built in Smart components. It is a bit of a drag specifying these className sequences by hand, so it would be nice if this would be supported in the IDE. There are after all only a small number of categories of these elementary styling bits : backgrounds, typography, borders, spacing, sizing, svg, interactivity and effects. And a relatively limited list of functions per category (bg-green-500 means a green background, 500 is the fifth shade in the green colour scheme. So there will be a bg-green-600, a bg-blue-200 etc). Doable I think. Apart from these styling functions, Tailwind also has a number of layout functions. Smart has its own layout mechanism, however the Tailwind functions can be used as well. See the 'card' component in the demo. Demo and source
  8. lynkfs

    RoadMap 2019

    I agree. I would like to see more openness around the whole of the product. A development roadmap for sure, the success of a product depends on whether it evolves in line with the needs of its users. But I would also love to see the company's marketing and and long-term positioning, a bit of a vision of the current owners.
  9. lynkfs

    JQWidget integration

    and here is the Grid - JQWidgets implementation working sms demo here Notes : there are 2 different formats of defining the grid, one using jQuery explicitly and one as a web-component. The latter format has a bug somewhere and comes up consistently with a runtime error. The former format works fine. the 'export to Excel' button actually fires up Excel if installed and run locally (sms demo is grid only but take my word)
  10. lynkfs

    Font size and style in buttons

    it is a difficult job to develop themes. If you have an example of a theme you prefer, I might have a look (depending on the bounty) Cheers
  11. lynkfs

    Font size and style in buttons

    Suggestion 2
  12. lynkfs

    JQWidget integration

    I got asked to have a look at how to integrate jqxWidgets in SMS There are a heap of ready-made widgets under the name of jQuery UI Widgets, ranging from grids to calendars to tooltips and many more. The example here is a jqxButton with an image in the left top corner. The vanilla html file for this looks like <!DOCTYPE html> <html lang="en"> <head> <meta name="keywords" content="jQuery Button, CheckBox, Toggle Button, Repeat Button, Radio Button, Link Button, Button" /> <meta name="description" content="The jqxButton widget allows you to display a button on the Web page." /> <title id='Description'>The jqxButton widget allows you to display a button on the Web page.</title> <link rel="stylesheet" href="../../jqwidgets/styles/jqx.base.css" type="text/css" /> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1" /> <meta name="viewport" content="width=device-width, initial-scale=1 maximum-scale=1 minimum-scale=1" /> <script type="text/javascript" src="https://www.jqwidgets.com/jquery-widgets-demo/scripts/jquery-1.11.1.min.js"></script> <script type="text/javascript" src="https://www.jqwidgets.com/jquery-widgets-demo/jqwidgets/jqxcore.js"></script> <script type="text/javascript" src="https://www.jqwidgets.com/jquery-widgets-demo/jqwidgets/jqxbuttons.js"></script> <script type="text/javascript"> $(document).ready(function () { // Create jqxButton widgets. $("#jqxButton").jqxButton({ width: 120, height: 40 }); // Subscribe to Click events. $("#jqxButton").on('click', function () { $("#events").find('span').remove(); $("#events").append('<span>Button Clicked</span'); }); }); </script> </head> <body class='default'> <div> <input type="button" value="Button" id='jqxButton' /> </div> <div style='font-size: 12px; font-family: Verdana; margin-top: 10px;'> <div>Events:</div> <div id='events'> </div> </div> </body> </html> which requires a number of external js and css files. These can be local or reside on a cdn server somewhere. Make sure they are served from either http or https, same as the platform the app is executed on. The widgets are created first, immediately after the document is dom-ready, and they will be rendered on a placeholder element with the same element.id as the created widgets. This can be simplified considerably in SMS : All functions can be recoded using this function tied to the ubiquitous jQuery "$" directive : function jqxQuery(aTagObj: string): Variant; external '$'; which results in this code : var props : variant := new JObject; props.height := 40; props.width := 120; props.imgSrc := "https://www.jqwidgets.com/jquery-widgets-demo/images/twitter.png"; props.imgPosition := "topLeft"; jqxQuery( "#jqxButton1" ).jqxButton(props); jqxQuery( "#jqxButton1" ).on('click', procedure() begin browserapi.window.alert('clicked button1'); end); and the placeholder element jqxButton1 := TW3Panel.Create(self); jqxButton1.SetBounds(30,20,126,46); jqxButton1.handle.style.border := '1px solid grey'; jqxButton1.handle.innerHTML := '<input type="button" value="Button" id="jqxButton1" />'; Sort of a rough and tumble approach, but it does work. A better way is to encapsulate these widgets in a dedicated component : unit jqxButton; { **************************************************************************** } { } { Smart Mobile Studio } { } { **************************************************************************** } interface {$I 'Smart.inc'} uses System.Types, {$IFDEF THEME_AUTOSTYLE} SmartCL.Theme, {$ENDIF} SmartCL.System, SmartCL.Components; type TJQXButton = class(TW3CustomControl) protected function MakeElementTagObj: THandle; override; procedure InitializeObject; override; published property caption: string; // read GetCaption write SetCaption; end; function jqxQuery(aTagObj: string): Variant; external '$'; implementation //############################################################################# // TJQXButton //############################################################################# procedure TJQXButton.InitializeObject; begin inherited; Caption := 'Button'; //default Handle.ReadyExecute( procedure () begin var Script := browserapi.document.createElement('script'); Script.src := 'https://www.jqwidgets.com/jquery-widgets-demo/jqwidgets/jqxcore.js'; browserapi.document.head.appendChild(Script); Script.onload := procedure begin writeln('jqxcore loaded'); var props : variant := new JObject; props.height := self.height-2; props.width := self.width-2; props.imgSrc := "https://www.jqwidgets.com/jquery-widgets-demo/images/twitter.png"; props.imgPosition := "topLeft"; jqxQuery( "#jqx" + self.handle.id ).jqxButton(props); end; handle.innerHTML := '<input type="button" value="' + Caption + '" id="jqx' + self.handle.id + '" />'; end); end; function TJQXButton.MakeElementTagObj: THandle; begin result := w3_createHtmlElement('div'); end; end. which can be instantiated as simple as jqxButton2 := TJQXButton.Create(self); jqxButton2.SetBounds(230,20,130,50); jqxButton2.Caption := 'Button2'; jqxButton2.OnClick := procedure(Sender:TObject) begin browserapi.window.alert('clicked button2'); end; Project demo here and source code here
  13. lynkfs

    visual processing

    See previous post : any type of no-code / lo-code solution requires a visual ide, not only for the visual components like buttons etc but also for the non-visual process components. Such an ide allows for both visual and non-visual components to be connected according to the principles of FBP. See previous post and link here. To see how this would pan out, I made this proof of concept no-code / lo-code web-based ide. (Proof of concept not being a full fledged finished product, but at least gives some insights) To diminish the strain on the brain a bit, the layout is based on the Smart ide, including the shameless reuse of its icons. Some highlights : - drag and drop placement of components rather than point and select - the usual component move and resize facilities but now including Delphi-type align options - drag and drop fbp connections between components using jsPlumb A quick rundown : 1) drag a button on the design pane 2) select 'Database' from the top tab-control, and drag both a grid and mySQL component on the design pane. Note the property pane is updated in realtime 3) (optionally click-select any dragged component to resize them. Select both grid and button, right-click on either for alignment options) 4) switch to the No-code tab and connect the button to the mySQL component, and the mySQL component to the grid 5) right-click the mySQL component and provide details (user-id, server, passwords etc). Not shown 6) switch to the Preview tab and click the button This project compiles to 63 KB (0.06 M. Not bad Project code here
  14. lynkfs

    Wrapping javascript library or ASM blocks ?

    it works fine you have to add these lines to your index.html file <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.2/jquery.min.js"></script> <script src="json-rpc-client.js"></script> and get this json-rpc-client.js file physically in the same directory as your index file code I used : procedure TForm1.W3Button2Click(Sender: TObject); begin var client : variant := new JObject; asm @client = new JSONRpcClient({ 'url': 'https://user-api.simplybook.me', 'headers': { 'X-Company-Login': 'lynkfs', 'X-Token': '89d85d820355.....................57eae4a72579bb' }, 'onerror': function (error) {} }); end; var services : variant := client.getEventList(); writeln(JSON.stringify(services)); //{"1":{"id":"1","name":"LynkFS","duration":"60","buffertime_before":"0","buffertime_after":"0","hide_duratio.... end; use either 'http' or 'https' for both the links to '//user-api.simplybook.me' and '//ajax.googleapis.com/ajax/libs/jquery/1.11.2/jquery.min.js' , depending on what your server is set up for
  15. lynkfs

    Wrapping javascript library or ASM blocks ?

    i'll have a look over the weekend