Board index » cppbuilder » TListView and selected

2006-09-07 08:08:05 AM
cppbuilder18
Can someone tell me what I need to do to make the selected
area of a customdraw cell on the listview to act the same way
as the other cells when you select the row.
For example, when you select a row the entire row turns to
blue, and the text appears white. Now on the customdraw
cell it stays white, there is no border or coloring.
I took this from a vcl component set that I am trying to figure
out that part on.
void __fastcall TDownLoaderTest::ListViewAdvancedCustomDrawSubItem(
TCustomListView *Sender, TListItem *Item, int SubItem,
TCustomDrawState State, TCustomDrawStage Stage, bool &DefaultDraw)
{
TclInternetItem *InternetItem = static_cast<TclInternetItem*>(Item->Data);
if ((!InternetItem) || (SubItem != 4)) return;
TRect R;
TclResourceStateList *ResourceState = InternetItem->ResourceState;
ListView_GetSubItemRect(Item->Handle, Item->Index, SubItem, LVIR_BOUNDS,
&R);
TControlCanvas *canvas = new TControlCanvas();
__try
{
canvas->Control = Sender;
clProgressBar->Draw(ResourceState, canvas, R);
}
__finally
{
delete canvas;
}
DefaultDraw = false;
}
Can someone help me out here.
Thanks.
 

"Curtis Richards" < XXXX@XXXXX.COM >wrote in message
entirely responsible for drawing everything about the item, including its
background.
Gambit
 

So if I set the parameter to DefaultDraw=true; will that handle the
selection of the entire row for me?
I just want the entire row to be highlighted with the default colors
that you seee when you select a row, nothing more.
"Remy Lebeau (TeamB)" < XXXX@XXXXX.COM >wrote in message

{smallsort}

"Curtis Richards" < XXXX@XXXXX.COM >wrote in message
Gambit
 

You are confusing me here.
This is the code the author has put in his demo to show
his vcl component. The code is displaying a progress
bar in the column of the listview. What other way is
there to display the progressbar without drawing it in
there?
void __fastcall TDownLoaderTest::ListViewAdvancedCustomDrawSubItem(
TCustomListView *Sender, TListItem *Item, int SubItem,
TCustomDrawState State, TCustomDrawStage Stage, bool &DefaultDraw)
{
TclInternetItem *InternetItem = static_cast<TclInternetItem*>(Item->Data);
if ((!InternetItem) || (SubItem != 4)) return;
TRect R;
TclResourceStateList *ResourceState = InternetItem->ResourceState;
ListView_GetSubItemRect(Item->Handle, Item->Index, SubItem, LVIR_BOUNDS, &R);
TControlCanvas *canvas = new TControlCanvas();
__try
{
canvas->Control = Sender;
clProgressBar->Draw(ResourceState, canvas, R);
}
__finally
{
delete canvas;
}
DefaultDraw = true;
}
Can you please show me what you are talking about?
Thanks.
 

"Curtis Richards" < XXXX@XXXXX.COM >wrote in message
DefaultDraw to true, and then draw your progress bar only when the Stage is
cdPostPaint. For example:
void __fastcall
TDownLoaderTest::ListViewAdvancedCustomDrawSubItem(TCustomListView *Sender,
TListItem *Item, int SubItem, TCustomDrawState State, TCustomDrawStage
Stage, bool &DefaultDraw)
{
DefaultDraw = true;
TclInternetItem *InternetItem =
static_cast<TclInternetItem*>(Item->Data);
if( (InternetItem) && (SubItem == 4) && (Stage == cdPostPaint) )
{
TclResourceStateList *ResourceState =
InternetItem->ResourceState;
TRect R;
ListView_GetSubItemRect(Item->Handle, Item->Index, SubItem,
LVIR_BOUNDS, &R);
clProgressBar->Draw(ResourceState, Sender->Canvas, R);
}
}
Gambit
 

Hi Gambit,
Just when I thought it was safe to go back in the water :)
First I would like to say thank you for helping me out in
trying to understand this better.
If you don't mind I uploaded an attachment in the attachments
group with two pics.
The first pic has the original code.
TclInternetItem *InternetItem =
static_cast<TclInternetItem*>(Item->Data);
if ((!InternetItem) || (SubItem != 4)) return;
TRect R;
TclResourceStateList *ResourceState = InternetItem->ResourceState;
ListView_GetSubItemRect(Item->Handle, Item->Index, SubItem,
LVIR_BOUNDS, &R);
TControlCanvas *canvas = new TControlCanvas();
__try
{
canvas->Control = Sender;
clProgressBar->Draw(ResourceState, canvas, R);
}
__finally
{
delete canvas;
}
DefaultDraw = true;
The second Pic has this code.
come it's still
not highlighting the row? Also, what happened to the font in the
other column?
Thanks again