I have a FlowLayoutPanel and a UserControl.
I've added multiple usercontrols into the FlowLayoutPanel, and I'm trying to dock them to the top, so when I change the size of the FlowLayoutPanel the size (width) of the usercontrols changes accordingly.
You cannot dock anything inside a FlowLayoutPanel, it's simply ignored.
Check out the answer here apparently posted by the Microsoft team.
They say:
The FlowLayoutPanel relies on a largest control to effectively define the column/row within it. The code below set's the size of the first control to the width of the FLP to achieve a layout similar to what you want.
private void flowLayoutPanel1_Layout(object sender, LayoutEventArgs e)
{
flowLayoutPanel1.Controls[0].Dock = DockStyle.None;
for (int i = 1; i < flowLayoutPanel1.Controls.Count; i++)
{
flowLayoutPanel1.Controls[i].Dock = DockStyle.Top;
}
flowLayoutPanel1.Controls[0].Width = flowLayoutPanel1.DisplayRectangle.Width - flowLayoutPanel1.Controls[0].Margin.Horizontal;
}
Key thing is to use the Layout event.
This solution worked for me up to a point. Your UserControls have to have AutoSize turned off / stay a uniform size.
In my case I wanted AutoSize turned on so as to allow the UserControl to expand/contract vertically while filling the width of the FlowLayoutPanel.
I had to find a different solution. But the above might help you in your case.
Related
I've 3 (loader, locker and debug view) hidden views (touchEnabled and visible set to false, and zIndex to 1) above the main view (zIndex = 2).
Each 'over' view has this method:
$.debugView.show = function() {
$.debugView.touchEnabled = $.debugView.visible = true;
$.debugView.zIndex = 3;
};
$.debugView.hide = function() {
$.debugView.touchEnabled = $.debugView.visible = false;
$.debugView.zIndex = 1;
};
This screen has the 3 'over' views hidden:
Now, I'm opening the 'debug view', but, SOMETIMES it seems like it changes the positions (as if the center it's on the top left corner instead of the center of the device).
Instead of the required result:
If I use the opacity instead of the visible property, it works properly.
This might be an SDK bug right?
<Alloy>
<Window>
<View id="content"/>
<View id="locker"/>
<View id="loader"/>
<View id="debugView"/>
</Window>
</Alloy>
All of these 4 views don't have width or height (so it uses the Ti.UI.FILL as default)
I have noticed this too with a completely different implementation. I had just one view that I included in a window.
Apparently the left and top calculations were not done properly if the elements is hidden.
What I did to solve the issue is to hardcode the left/top position by calculating the left position using this:
$.content.left = (Ti.Platform.displayCaps.platformWidth - 75) / 2;
Where in my case 75 is the width the element has, so that'll be bigger in your case. You can do the same for height.
Now, this is an iOS only solution. On Android you will need to take DPI into consideration calculating it.
I do think it is a bug, though this solution works perfectly for me. I recommend looking at JIRA and see if it is a known issue, and if not, raise it with a very specific explanation of the problem, preferably with a reproducible case delivered as an app. Classic would help most. And if it is not reproducible in classic it might be an alloy issue.
I have a JavaFX app which contains a line chart. I want users to be able to select the color of each series in the chart. Since the selection is dynamic I can't use static CSS to set the colors. I also have other controls that I need to set to the same color as the associated series. It's possible to set the line color of a series dynamically using code like this:
series.getNode().setStyle("-fx-stroke: " + color + ";");
That works well and I can use the user-specified color on the associated controls.
My problem is that I also need to set the color of the symbols for each series to the same color. I can't find any way to do that dynamically. All of the tutorials, documentation, and posts that I've read on the topic point to the static CSS approach.
Most charting widgets make this sort of thing very easy to do, but I've found no clues here or on the Oracle forums. Any guidance would be greatly appreciated.
-- Update --
I've found no way to do this other than to enumerate every data point in every series, grab the associated symbol node and set the style individually. Not what I was hoping for. In the process I realized that the default Node allocated for a symbol is a StackPane. I didn't need that flexibility so I replaced it with a Rectangle. This made rendering faster.
I'm late to the game, but maybe someone can use my solution. What worked for me, was iterating through every item in the data series and setting the CSS style for each one.
for (int index = 0; index < series.getData().size(); index++) {
XYChart.Data dataPoint = series.getData().get(index);
Node lineSymbol = dataPoint.getNode().lookup(".chart-line-symbol");
lineSymbol.setStyle("-fx-background-color: #00ff00, #000000; -fx-background-insets: 0, 2;\n" +
" -fx-background-radius: 3px;\n" +
" -fx-padding: 3px;");
}
I was stuck with a similar problem. I don't know upfront which data is going to be added to the graph, so I can't make use of a fixed stylesheet.
I came up with this solution. This code listens for new series added to graph. For every added series, it will create a new listener for data added to the series.
This listener will look up which series this is, the 0th, 1st, etc and then find the two nodes for the coloring of the line and of the legend/symbol.
As soon as it has set both, it can unsubscribe.
Problem can be that the legend/symbol node is not available yet when you receive the callback on the first added datapoint.
I'm aware it's very convoluted and I'm open to hear improvements.
At least it will give you the option to dynamically set the color to anything you want.
final LineChart<Number, Number> chart = new LineChart<>(new NumberAxis(), new NumberAxis());
final ObservableList<Series<Number, Number>> series = chart.getData();
series.addListener(new ListChangeListener<Series<Number, Number>>() {
#Override
public void onChanged(Change<? extends Series<Number, Number>> change) {
ObservableList<? extends Series<Number, Number>> list = change.getList();
for (final Series<Number, Number> serie : list) {
serie.getData().addListener(new ListChangeListener<Data<Number, Number>>() {
#Override
public void onChanged(Change<? extends Data<Number, Number>> ignore) {
int index = series.indexOf(serie);
Set<Node> nodes = chart.lookupAll(".series" + index);
boolean isStyleSet = false;
for (Node n : nodes) {
if (StringUtils.isEmpty(n.getStyle())) {
String css = "-fx-stroke: %s; -fx-background-color: %s, white; ";
String color = //assign dynamically here, for instance based on the name of the series
n.setStyle(String.format(css, color, color));
isStyleSet = true;
}
}
if (!isStyleSet & nodes.size() > 1) {
serie.getData().removeListener(this);
}
}
});
}
}
});
I had a problem which might be slightly different (possibly more complex); I needed to style some nodes of a series one color, others within the same series another color (I also needed to be able to change the allocation of color dynamically). I am working in JavaFx 2.2; I have css-styling, but of course that does not help here. I could not find my issue addressed anywhere; this was the closest I've found.
I just want to say that I could not get "series.getNode().setStyle("-fx-stroke: " + color + ";")" to work. However, using "-fx-background" instead does work. I hope this helps someone.
I want to implement a list in Android that contains some customized views.
My problem is that I want the the views will be put one after the other with a little overlap between them. like in the following schema:
I also want to control this overlap in such a way that when the user clicks on one of the items, they will move apart from each other.
I tried to extend ListView but it seems to be very obscured, any suggestions?
Edit:
This can be more clear:
I did it by setting the divider height to -50dp.
this is exactly what I want to achieve, but somehow it doesn't reflect on my app.
I managed to achieve this by using scroll view with a single relative layout as a child.
I then dynamically place the views by defining a rule and margin:
for (int i = 0; i < 30; i++) {
TextView tv = new TextView(context);
tv.setText("Text \n Text" + i);
tv.setBackgroundColor(i % 2 == 0 ? Color.RED : Color.GREEN);
RelativeLayout.LayoutParams lp = new RelativeLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT);
lp.addRule(RelativeLayout.ALIGN_PARENT_TOP);
lp.leftMargin = 0;
lp.topMargin = (i * 45);
rl.addView(tv, lp);
}
Later, you can control the positioning of the sub-views by changing their y value (for example: if you want to add animation).
This is the final result:
This can probably be achieved by using the Camera.setTranslate function. See Android: Vertical ListView with overlaped rows and Android: vertical 3d listview for similar questions (with solutions)
I have a view with 4 text boxes and and a logo at the top - when the user is entering information the text pad covers up some of these controls, how can I make the view scroll so that this isn't an issue.
I have tried adding the view to a UIScrollView but that doesn't seem to do anything?
I've included a snippit below of how I've handled your situation. If I'm understanding you correctly, you do not wish to have a scrollable view, rather you want to the view to move in conjunction with switching to and from fields to alleviate and visual hindrances caused by the keyboard.
Goodluck!
private void ScrollTheView(bool movedUp, float scrollamount, UIView ViewToMove)
{
//To invoke a views built-in animation behaviour,
//you create an animation block and
//set the duration of the move...
//Set the display scroll animation and duration...
UIView.BeginAnimations(string.Empty, System.IntPtr.Zero);
UIView.SetAnimationDuration(0.15);
//Get Display size...
RectangleF frame = ViewToMove.Frame;
if (movedUp) {
//If the view should be moved up,
//subtract the keyboard height from the display...
frame.Y -= scrollamount;
}
else {
//If the view shouldn't be moved up, restore it
//by adding the keyboard height back to the original...
frame.Y += scrollamount;
}
//Assign the new frame to the view...
ViewToMove.Frame = frame;
//Tell the view that your all done with setting
//the animation parameters, and it should
//start the animation...
UIView.CommitAnimations();
}
You need to set more to the UIScrollView than just put subviews in it. Set up the ContentSize property properly for the complete size of the subviews so the scrollview knows about the larger content in it, than you can control the scrolling position, zoom factor and so on.
There are plenty of samples on iOS SDK, just check the UIScrollView documentation, transformation to Monotouch from ObjectiveC is straightforward or check blog post at http://blog.touch4apps.com/home/iphone-monotouch-development/monotouch-infinite-loop-image-scroll-view where I have a sample with images autoscrolled in UIScrollView.
something like this.
textBox.EditingDidBegin += delegate {
var offset = scrollView.contentOffset;
offset.Y -= 200;
scrollView.contentOffset = offset;
}
I have a resizeable CListCtrl and I want to avoid any item being displayed partially, ever.
For example:
I want Item 9 to not be displayed in this case. Is there a flag or method for this? How would you go about solving this issue?
I tried the following and it was no good:
void CMyCListCtrl::OnEndScrolling()
{
int iCount = this->GetCountPerPage();
EnsureVisible(iCount - 1, FALSE);
}
after catching
...
ON_NOTIFY( LVN_ENDSCROLL, IDC_LIST1, OnEndScroll )
...
void CWheelTestDlg::OnEndScroll(NMHDR* pNMHDR, LRESULT* pResult)
{
LPNMLVSCROLL pnmLVScroll = (LPNMLVSCROLL) pNMHDR;
m_MyListCtrl.OnEndScrolling();
*pResult = 0;
}
In the CListCtrl parent dialog. (which I don't want to do, I want to do everything in my CListCtrl derived class only, if possible).
All I accomplish is showing item 9 completely, but item 10 is partially visible below it. If I have 30 items I don't want to scroll the list to show item 30, I want to show up to item 8 with no partially visible item below it.
CListCtrl doesn't appear to support Integral Height.
Here's a solution that accomplishes what you desire by forcefully changing the control height [with commented conditions] (http://www.codeproject.com/Messages/418084/Socket-accept-call.aspx):
/////////////////////////////////////////////////////////////////////////////////
// This assumes a REPORT-style CListCtrl.
//
// Resize the control. This works correctly only if scrolling is disabled. If
// there is scrolling, then setting to the size from ApproximateViewRect() will
// always give scroll bars showing. Which is irritating.
//
// We need to adjust the vertical size from what ApproximateViewRect() returns
// by one row minus border width
//////////////////////////////////////////////////////////////////////////////////
CSize sz = m_list.ApproximateViewRect(); // always adds room for a new row
CRect itRect; // Get the height of a single row (there had better *be* a row!)
m_list.GetItemRect(0, &itRect, LVIR_BOUNDS);
int vOffset = itRect.Height() - 3; // leave a little 'cuz it looks better
m_list.SetWindowPos(NULL, 0, 0, sz.cx, sz.cy - vOffset,
SWP_NOZORDER|SWP_NOACTIVATE|SWP_NOMOVE);
I have the similar problem in wince, and find a solution accidentally. No direct solution in internet, so i decide to re-position scroll bar after receive some message, and the only message i can used in wince is WM_LBUTTONDOWN, other messages such as OnEndScroll are not called, maybe something wrong in my code.
Whatever, i use Timer（ON_WM_TIMER） to re-position scroll bar when receive WM_LBUTTONDOWN message, then find that list control doesn't scroll automatically! then i remain a empty OnTimer function and remove everything else. It works, and i guess list control use Timer to scroll partial row.
Hope useful to you.