RE: On Column Resize event
That will work :) but... it *might* be simpler/ more efficient to use the On mouse enter/On mouse leave event for the listbox and set a process variable, rather then run the mouse location code every time the On Column Resize event fires. // object method - listbox case of :(form event = On Mouse Enter) flag_Mouse_in_listbox:=true :(form event = On Mouse Leave) flag_Mouse_in_listbox:=false :(Form event = on Column Resize) & (flag_Mouse_in_listbox) // do whatever column size changes you are doing end case On Fri, 5 Jan 2018 17:50:44 +, Piotr Chabot Stadhouders via 4D_Tech wrote: > Hi, > > Based on the tip op Chip (sounds nice), I have created a function > that can be used in the "On Column Resize" event: > > > C_TEXT($listbox;$1) > C_BOOLEAN($mouse_in_listbox;$0) > $listbox:=$1 > > C_BOOLEAN($mouse_in_listbox) > GET MOUSE($mouseX;$mouseY;$mouseButton) > OBJECT GET COORDINATES(*;$listbox;$l;$t;$r;$b) > > If ($mouseX>=$l) & ($mouseX<=$r) & ($mouseY>=$t) & ($mouseY<=$b) > $mouse_in_listbox:=True > Else > $mouse_in_listbox:=False > End if > > $0:=$mouse_in_listbox > > > > >> -Oorspronkelijk bericht- >> Van: Piotr Chabot Stadhouders [mailto:p.stadhoud...@timeff.com] >> Verzonden: vrijdag 5 januari 2018 10:06 >> Aan: 4D iNug Technical <4d_tech@lists.4d.com> >> Onderwerp: RE: On Column Resize event >> >> Hi Chip, Miyako, >> >> @Chip : >> Thanks, this is a nice tip! >> But don't you agree it should be easier, and 4D should have thought >> about this, >> and implement it another way? >> >> @Miyako : >> I know there is a new auto-resize feature, but this works not as how >> we want it >> In fact we have implemented an auto-resize feature ourselves, and this is >> exactly why we have a problem now When a user resizes a column we >> determine the ratio's of the column widths (We do this in the "On Column >> Resize" event) When resizing the listbox (by resizing the window for >> example) >> in the "On Resize" event we set the widths proportionally based on >> the ratio's >> calculated earlier >> >> Gr, >> >> Piotr >> >>> -Oorspronkelijk bericht- >>> Van: Chip Scheide [mailto:4d_o...@pghrepository.org] >>> Verzonden: donderdag 4 januari 2018 18:22 >>> Aan: 4D iNug Technical <4d_tech@lists.4d.com> >>> CC: Piotr Chabot Stadhouders <p.stadhoud...@timeff.com> >>> Onderwerp: Re: On Column Resize event >>> >>> Piotr, >>> 'On Timer' can be used to limit execution of the On Column Resize event. >>> I have seen a similar problem with other resizing situations. >>> >>> Basically - you start a timer for a .5 second or so, then On timer >>> executes the code. >>> This reduces the number of times the code runs. >>> >>> For differentiating between manual resizing of a column vs auto >>> resizing via a window resize, you could try setting a flag. Set the >>> flag in 'On Mouse Enter', and clearing it in 'On Mouse Leave', in the >>> context of the listbox. Then in the code for resizing if the flag is >>> set the user has the mouse in the listbox and is resizing manually. >>> If not, then >> the user is resizing the window. >>> >>> Chip >>> On Thu, 4 Jan 2018 17:13:23 +, Piotr Chabot Stadhouders via >>> 4D_Tech >>> wrote: >>>> Hi, >>>> >>>> In 4D v16 there is a new feature so an "On Column Resize" event is >>>> triggered "live" during resizing of a listbox: >>>> https://blog.4d.com/execute-action-upon-listbox-column-resizing/ >>>> >>>> I have a lot of code behind that event in our application that now >>>> is executed too many times, so I don't like this at all. I have to >>>> eliminate this code, because it is based on the idea a user resizes >>>> the column. >>>> >>>> Apart from this fact, there is something else : >>>> When setting the Horizontal sizing option of the listbox to grow, >>>> the listbox grows when resizing the window, and the last column of >>>> the listbox is also resized. This is common beheviour What I don't >>>> like is that then the "On Column Resize" event also is fired, so now >>>> when resizing the window, the code behind the event is executed many >>>>
RE: On Column Resize event
Hi, Based on the tip op Chip (sounds nice), I have created a function that can be used in the "On Column Resize" event: C_TEXT($listbox;$1) C_BOOLEAN($mouse_in_listbox;$0) $listbox:=$1 C_BOOLEAN($mouse_in_listbox) GET MOUSE($mouseX;$mouseY;$mouseButton) OBJECT GET COORDINATES(*;$listbox;$l;$t;$r;$b) If ($mouseX>=$l) & ($mouseX<=$r) & ($mouseY>=$t) & ($mouseY<=$b) $mouse_in_listbox:=True Else $mouse_in_listbox:=False End if $0:=$mouse_in_listbox > -Oorspronkelijk bericht- > Van: Piotr Chabot Stadhouders [mailto:p.stadhoud...@timeff.com] > Verzonden: vrijdag 5 januari 2018 10:06 > Aan: 4D iNug Technical <4d_tech@lists.4d.com> > Onderwerp: RE: On Column Resize event > > Hi Chip, Miyako, > > @Chip : > Thanks, this is a nice tip! > But don't you agree it should be easier, and 4D should have thought about > this, > and implement it another way? > > @Miyako : > I know there is a new auto-resize feature, but this works not as how we want > it > In fact we have implemented an auto-resize feature ourselves, and this is > exactly why we have a problem now When a user resizes a column we > determine the ratio's of the column widths (We do this in the "On Column > Resize" event) When resizing the listbox (by resizing the window for example) > in the "On Resize" event we set the widths proportionally based on the ratio's > calculated earlier > > Gr, > > Piotr > > > -Oorspronkelijk bericht- > > Van: Chip Scheide [mailto:4d_o...@pghrepository.org] > > Verzonden: donderdag 4 januari 2018 18:22 > > Aan: 4D iNug Technical <4d_tech@lists.4d.com> > > CC: Piotr Chabot Stadhouders <p.stadhoud...@timeff.com> > > Onderwerp: Re: On Column Resize event > > > > Piotr, > > 'On Timer' can be used to limit execution of the On Column Resize event. > > I have seen a similar problem with other resizing situations. > > > > Basically - you start a timer for a .5 second or so, then On timer > > executes the code. > > This reduces the number of times the code runs. > > > > For differentiating between manual resizing of a column vs auto > > resizing via a window resize, you could try setting a flag. Set the > > flag in 'On Mouse Enter', and clearing it in 'On Mouse Leave', in the > > context of the listbox. Then in the code for resizing if the flag is > > set the user has the mouse in the listbox and is resizing manually. If not, > > then > the user is resizing the window. > > > > Chip > > On Thu, 4 Jan 2018 17:13:23 +, Piotr Chabot Stadhouders via > > 4D_Tech > > wrote: > > > Hi, > > > > > > In 4D v16 there is a new feature so an "On Column Resize" event is > > > triggered "live" during resizing of a listbox: > > > https://blog.4d.com/execute-action-upon-listbox-column-resizing/ > > > > > > I have a lot of code behind that event in our application that now > > > is executed too many times, so I don't like this at all. I have to > > > eliminate this code, because it is based on the idea a user resizes > > > the column. > > > > > > Apart from this fact, there is something else : > > > When setting the Horizontal sizing option of the listbox to grow, > > > the listbox grows when resizing the window, and the last column of > > > the listbox is also resized. This is common beheviour What I don't > > > like is that then the "On Column Resize" event also is fired, so now > > > when resizing the window, the code behind the event is executed many > > > times. > > > What I don't understand is how I can know if the event is triggered > > > by a user resizing the column, or if it is triggered by something > > > else (in this case resizing the window) > > > > > > Does anybody know of a way to detect this? > > > > > > Gr, > > > > > > Piotr > > > > > > > > > > > ** > > > 4D Internet Users Group (4D iNUG) > > > FAQ: http://lists.4d.com/faqnug.html > > > Archive: http://lists.4d.com/archives.html > > > Options: http://lists.4d.com/mailman/options/4d_tech > > > Unsub: mailto:4d_tech-unsubscr...@lists.4d.com > > > > > > > > ** > > --- > > Gas is for washing parts > > Alcohol is for drinkin' > > Nitromethane is for racing > ** 4D Internet Users Group (4D iNUG) FAQ: http://lists.4d.com/faqnug.html Archive: http://lists.4d.com/archives.html Options: http://lists.4d.com/mailman/options/4d_tech Unsub: mailto:4d_tech-unsubscr...@lists.4d.com **
RE: On Column Resize event
Hi Chip, Miyako, @Chip : Thanks, this is a nice tip! But don't you agree it should be easier, and 4D should have thought about this, and implement it another way? @Miyako : I know there is a new auto-resize feature, but this works not as how we want it In fact we have implemented an auto-resize feature ourselves, and this is exactly why we have a problem now When a user resizes a column we determine the ratio's of the column widths (We do this in the "On Column Resize" event) When resizing the listbox (by resizing the window for example) in the "On Resize" event we set the widths proportionally based on the ratio's calculated earlier Gr, Piotr > -Oorspronkelijk bericht- > Van: Chip Scheide [mailto:4d_o...@pghrepository.org] > Verzonden: donderdag 4 januari 2018 18:22 > Aan: 4D iNug Technical <4d_tech@lists.4d.com> > CC: Piotr Chabot Stadhouders <p.stadhoud...@timeff.com> > Onderwerp: Re: On Column Resize event > > Piotr, > 'On Timer' can be used to limit execution of the On Column Resize event. > I have seen a similar problem with other resizing situations. > > Basically - you start a timer for a .5 second or so, then On timer executes > the > code. > This reduces the number of times the code runs. > > For differentiating between manual resizing of a column vs auto resizing via a > window resize, you could try setting a flag. Set the flag in 'On Mouse Enter', > and clearing it in 'On Mouse Leave', in the context of the listbox. Then in > the > code for resizing if the flag is set the user has the mouse in the listbox > and is > resizing manually. If not, then the user is resizing the window. > > Chip > On Thu, 4 Jan 2018 17:13:23 +, Piotr Chabot Stadhouders via 4D_Tech > wrote: > > Hi, > > > > In 4D v16 there is a new feature so an "On Column Resize" event is > > triggered "live" during resizing of a listbox: > > https://blog.4d.com/execute-action-upon-listbox-column-resizing/ > > > > I have a lot of code behind that event in our application that now is > > executed too many times, so I don't like this at all. I have to > > eliminate this code, because it is based on the idea a user resizes > > the column. > > > > Apart from this fact, there is something else : > > When setting the Horizontal sizing option of the listbox to grow, the > > listbox grows when resizing the window, and the last column of the > > listbox is also resized. This is common beheviour > > What I don't like is that then the "On Column Resize" event also is > > fired, so now when resizing the window, the code behind the event is > > executed many times. > > What I don't understand is how I can know if the event is triggered > > by a user resizing the column, or if it is triggered by something > > else (in this case resizing the window) > > > > Does anybody know of a way to detect this? > > > > Gr, > > > > Piotr > > > > > > ** > > 4D Internet Users Group (4D iNUG) > > FAQ: http://lists.4d.com/faqnug.html > > Archive: http://lists.4d.com/archives.html > > Options: http://lists.4d.com/mailman/options/4d_tech > > Unsub: mailto:4d_tech-unsubscr...@lists.4d.com > > > > ** > --- > Gas is for washing parts > Alcohol is for drinkin' > Nitromethane is for racing ** 4D Internet Users Group (4D iNUG) FAQ: http://lists.4d.com/faqnug.html Archive: http://lists.4d.com/archives.html Options: http://lists.4d.com/mailman/options/4d_tech Unsub: mailto:4d_tech-unsubscr...@lists.4d.com **
Re: On Column Resize event
if what you want is equal distribution of growth, then there is another v16 feature that does that: https://blog.4d.com/listbox-columns-auto-resizing/ > 2018/01/05 2:13、Piotr Chabot Stadhouders via 4D_Tech <4d_tech@lists.4d.com> > のメール： > > When setting the Horizontal sizing option of the listbox to grow, the listbox > grows when resizing the window, and the last column of the listbox is also > resized. This is common beheviour > What I don't like is that then the "On Column Resize" event also is fired, so > now when resizing the window, the code behind the event is executed many > times. ** 4D Internet Users Group (4D iNUG) FAQ: http://lists.4d.com/faqnug.html Archive: http://lists.4d.com/archives.html Options: http://lists.4d.com/mailman/options/4d_tech Unsub: mailto:4d_tech-unsubscr...@lists.4d.com **
Re: On Column Resize event
Piotr, 'On Timer' can be used to limit execution of the On Column Resize event. I have seen a similar problem with other resizing situations. Basically - you start a timer for a .5 second or so, then On timer executes the code. This reduces the number of times the code runs. For differentiating between manual resizing of a column vs auto resizing via a window resize, you could try setting a flag. Set the flag in 'On Mouse Enter', and clearing it in 'On Mouse Leave', in the context of the listbox. Then in the code for resizing if the flag is set the user has the mouse in the listbox and is resizing manually. If not, then the user is resizing the window. Chip On Thu, 4 Jan 2018 17:13:23 +, Piotr Chabot Stadhouders via 4D_Tech wrote: > Hi, > > In 4D v16 there is a new feature so an "On Column Resize" event is > triggered "live" during resizing of a listbox: > https://blog.4d.com/execute-action-upon-listbox-column-resizing/ > > I have a lot of code behind that event in our application that now is > executed too many times, so I don't like this at all. I have to > eliminate this code, because it is based on the idea a user resizes > the column. > > Apart from this fact, there is something else : > When setting the Horizontal sizing option of the listbox to grow, the > listbox grows when resizing the window, and the last column of the > listbox is also resized. This is common beheviour > What I don't like is that then the "On Column Resize" event also is > fired, so now when resizing the window, the code behind the event is > executed many times. > What I don't understand is how I can know if the event is triggered > by a user resizing the column, or if it is triggered by something > else (in this case resizing the window) > > Does anybody know of a way to detect this? > > Gr, > > Piotr > > ** > 4D Internet Users Group (4D iNUG) > FAQ: http://lists.4d.com/faqnug.html > Archive: http://lists.4d.com/archives.html > Options: http://lists.4d.com/mailman/options/4d_tech > Unsub: mailto:4d_tech-unsubscr...@lists.4d.com > ** --- Gas is for washing parts Alcohol is for drinkin' Nitromethane is for racing ** 4D Internet Users Group (4D iNUG) FAQ: http://lists.4d.com/faqnug.html Archive: http://lists.4d.com/archives.html Options: http://lists.4d.com/mailman/options/4d_tech Unsub: mailto:4d_tech-unsubscr...@lists.4d.com **
