[Sleep Delay In UniGui Application]

I'd use Sleep() for debugging purposes only. You should test whether it hangs the whole server or not (call a long Sleep and open a new connection on a separate window).

[TUniDBLookupComboBox]

2) I define "Images" property on TUniDBLookupComboBox ... hut how can I add image on the list ? I can not display an image in the list.

 

I tried do put <img src='path/to/img.png'/> before each element, and only got partial results: the elements in the list got the correct images but the selected one appears with the html text

[Are you more than 40 years old?]

wow, what a beautiful bell curve we got!

[applyEmptyText is not a function]

I got

O553.setEmptyText is not a function

the other approarch you suggest seems to work, thanks!

 

Edit: here is the code that I am using right now

if(!_empty_txt_set)
{
   UniSession()->AddJS(UnicodeString().sprintf(L"%s.view.emptyText='<div class=\"x-grid-empty\">NO RESULT</div>';%s.getView().refresh();", grid->JSName, grid->JSName);
   _empty_txt_set = true;
}

so it uses the same div class as a EmptyText.
I had to use a boolean because the Server side uniDBGrid still has an empty EmptyText.

[applyEmptyText is not a function]

Hi,

I am trying to set a DBGrid EmptyText at run time,

if(MainDBGrid->EmptyText.IsEmpty())
{
      MainDBGrid->EmptyText = "NO RECORD";
}
MainQuery->Open();

but I get this Ajax error message

O553.applyEmptyText is not a function

I also tried to inject javascript directly, but the result is the same

UniSession->AddJS(UnicodeString().sprintf(L"%s.emptyText = '%s'; %s.applyEmptyText();", MainDBGrid->JSName, UnicodeString(L"NO RECORD"), MainDBGrid->JSName);

[TUniImage: load from TUniNativeImageList]

See the test case attached.

TestUniImage.zip

[TUniImage: load from TUniNativeImageList]

Let me clarify:

The line

ImgList->GetPng(img_cache.index, p);

Is only a cut and paste error.

It wass supposed to be

ImgList->GetPng(0, p);

[TUniImage: load from TUniNativeImageList]

it seems exactly what I tried, only in Delphi

[Are you more than 40 years old?]

I started coding with Embarcadero RAD Studio when I was about 25 years old. I am now 30.

 

But I rarely code in Delphi, I am more a C++ Builder guy. Does it count?

[TUniImage: load from TUniNativeImageList]

Hi Delphi Developer,

 

Thanks for the link. I tried this

TPngImage* p = new TPngImage();
try
{
    ImgList->GetPng(img_cache.index, p);
    p->Transparent = true;
    img->Picture->Graphic->Assign(p);
}
__finally
{
    delete p;
}

And it kinda works. The only problem is that the pictures lose transparency, they get a black background.

P.S. All the images I use are png

[TUniImage: load from TUniNativeImageList]

Is it possible to "copy" an Image loaded in a TUniNativeImageList into a TUniImage?

I tried several approaches, with no luck.

img->Picture->Graphic->LoadFromStream(ImgList->Images[0]->MemoryImage);  //ACCESS VIOLATION

Or

TMemoryStream* s = new TMemoryStream();
TNativeImageRecord* img_rec =  ImgList->Images[0];

img_rec->MemoryImage->SaveToStream(s);  //ACCESS VIOLATION
s->Position = 0;

img->Picture->Graphic->LoadFromStream(s);

Or

TMemoryStream* s = new TMemoryStream();
TNativeImageRecord* img_rec =  ImgList->Images[0];

img_rec->Graphic->SaveToStream(s);  //ACCESS VIOLATION
s->Position = 0;

img->Picture->Graphic->LoadFromStream(s);

Any help?

[UniCanvas doesn't have TextOut function?]

//Delphi
UniSession.AddJS(unicanvas.JSName + '._cc_.fillText("'+text+'",'+left+','+top+');');

//C++
UnicodeString s = UnicodeString().sprintf(L"%s._cc_.fillText('%s',%d,%d);", unicanvas->JSName, text, left, top);
UniSession()->AddJS(s);

Of course, is better if you do some escaping of the text first, otherwise you will be open to injection

[I Can't compile my first Unigui C++ application]

in the main cpp file (the one with the name of the project)

 

#include <UniGUIVars.hpp>//<---------THIS
#include <vcl.h>

USEFORM("MainModule.cpp", UniMainModule); /* TUniGUIMainModule: File Type */
USEFORM("ServerModule.cpp", UniServerModule); /* TUniGUIServerModule: File Type */
USEFORM("Main.cpp", MainForm); /* TUniForm: File Type */
//---------------------------------------------------------------------------
#pragma link "UniGUIVars.obj" //<---------THIS
#pragma TestProject

//---------------------------------------------------------------------------
WINAPI WinMain(HINSTANCE, HINSTANCE, LPSTR, int)
{

[TUniSpeedButton.Glyph, loading PNG results in "Invalid Graphic Format"]

1) I am trying to use icons from here:

https://material.io/icons/

 

When clicking on the "Glyph" property in Delphi and then Clicking "Load" and selecting a PNG sourced from there, the image is loaded and displayed but when you then click OK, an error message "Invalid graphic format" is displayed with call stack as follows:

http://i.imgur.com/wiOns0Z.png

 

The same happens with a conventional VCL TSpeedButton so it looks like some kind of Delphi bug, but mentioning just in case this is something UniGUI can do something about.

 

 

Glyph doesn't work with PNG with Alpha Channel (transparency)

[TUniSpeedButton.Glyph, loading PNG results in "Invalid Graphic Format"]

2) Additionally I notice TUniSpeedButton has "Images" and "ImageIndex" properties.  I'd assumed that assigning a TUniImageList, populating it with PNG (which does work) and setting ImageIndex might cause the button to display the image but this appears to do nothing.   Can you clarify whether this is supposed to work or why these properties appear to be ignored?

 

Thanks

 

Walter

 

It does work with TUniBitBtn, I use them a lot in my project. Do you need SpeedButton specifically?

[Help button in html]

ok I figured it out, at first I thought you posted a piece of Delphi code.

<a href="#" onclick="javascript:ajaxRequest(MainForm.window,'openClick');MainForm.window.showMask('wait');"style="text-decoration: none">

thanks

[Transparent Images]

try TUniNativeImageList

[Help button in html]

 

Use this approach: 

frmEmailSettings.grdEmails.showMask('Loading list...');

 

Hi mohammad, let me give you a bit of context:

I have a TUniDBText (TextConversion = txtHTML) with the underlying query something like

select 
'<table>'
     ||'<tr>'
          ||'<td colspan="2"><a href="#" onclick="javascript:ajaxRequest(MainForm.window,''openClick'');"style="text-decoration: none">'
              ||'<div class="mydivclass">DETAILS</div>'
              ||'</a></td>'
     ||'</tr>'
||'</table>'  a_html
from mytable
where a_id=1

of course I am handling the event...

void __fastcall TFormMain::UniFormAjaxEvent(TComponent *Sender, UnicodeString EventName, TUniStrings *Params)
{
    if (EventName.Compare(L"openClick") == 0)
    {
        doSomething();
    }
}

But since the "click" event might take a while to process I need a way to tell the HTML/javascript side to show a mask covering the HTML table (or the form).

[Help button in html]

Any idea on how to add a screenmask?

[Delphi 10.1 Berlin Start Edition - NOW FREE]

Database components are not included. What is Delphi without Oracle?

[THtmlFrame , resize and text size]

1) Consider putting the css in ServerModule->CustomCSS.

2) Have you set HTMLFrame::Align = alClient?

[Components aligment problem]

+1

As soon as I started using FieldLabel I noticed this inconsistency between design and runtime. This is pretty evident if set FieldAlign = alTop: nothing changes at design time, while at run time the Edit is moved several pixels down.

[TUniCalendar - highlight days and more]

In order to make it work you need to separate two steps:

1) the Ext.override code and the beforeInit

....let the JS component render

 

2) UniSession->AddJS(...)

 

This is necessary because if you fire both at the same time (for instance at form first Show) the JS code can't find the ExtJS DatePicker.

 

In practice, try to execute

 TMainForm.HighlightDatesPush(ADt: TDate; ATitle: string)

after a Timer fires (once) or on button click

[TUniCalendar - highlight days and more]

Found a solution:

 

1) Put this early in the application (for instance at the construction/show of the main form)

Ext.override(Ext.DatePicker, {
        highlightDates:[],
        enablePickerHighlight:false,
        isAnotherMonthView: function(date) {
            var activeDate = this.activeDate || date; 
            return date.getYear() != activeDate.getYear() || date.getMonth() != activeDate.getMonth();
        },

        update: function(date, forceRefresh) {
            var me = this;
            monthViewChange = me.isAnotherMonthView(date);

            this.callParent(arguments);

            if(me.enablePickerHighlight){
                me.highlightDates.forEach(function(dates) {
                    me.cells.each(function(el) {
                        if (Ext.Date.clearTime(dates.dt, true).valueOf() == el.dom.firstChild.dateValue) { 
                            if (el.hasCls(me.activeCls)) { 
                                el.addCls('x-datepicker-highlight');
                            } else { 
                                el.addCls('x-datepicker-highlight-prevnext'); 
                            }
                            //enable this if you wish custom title
                            /*el.dom.title = dates.title;*/
                            return false; 
                        };
                    });
                });
    
                if (monthViewChange) {
                     Ext.defer(function() {
                     me.fireEvent('select');
                     }, 200);
                }
            }
        }
    });

2) in the particular picker, beforeInit

function picker.beforeInit(sender, config){
    config.highlightDates = [];
    config.enablePickerHighlight=true;
}

Thanks for your patience, I learned a lot, actually.

[TUniCalendar - highlight days and more]

Well, it is global. This Ext.Override is pretty destructive it breaks every other picker in the application