I want to display a non-zoomable ZedGraph control. How do I disable the mousewheel zooming function in ZedGraph?
If you wish to only disable the zoom by mouse wheel feature, you can use:
zedGraphControl.IsEnableWheelZoom = false;
If zgc is your ZedGraphControl instance, use:
zgc.ZoomButtons = MouseButtons.None;
zgc.ZoomButtons2 = MouseButtons.None;
This will disable zooming by selecting area with mouse.
You will also need to set:
zgc.ZoomStepFraction = 0;
in order to disable zooming using mouse wheel.
Related
I have set a Panel to AutoScroll = True.
I host a button in this panel.
When I set the button to a new location outside the panel's visible area...
.Location = New Point(2000, 0)
... this doesn't make the scrollbars appear.
How could I force the panel to invalidate / check again if the scrollbars should be shown?
I got it:
I need to set the button's parent to something else, then add it to the panel again which raises the ControlAdded event.
I recently started using Haxe, so pardon me if my question has an obvious answer or if my description of the problem is a little sloppy, but I'm going to try my best to explain it.
I'm working on a laptop that has a multitouch-supported track pad, and a normal optical mouse with only a vertical scroll wheel (no horizontal clicking available on there). I'm looking for a way to handle horizontal scroll input / events. OpenFL's mouse events support vertical scrolling well enough. Both the mouse scrolling and the two-finger track pad scrolling work fine for the vertical axis. It looks like the same event is generated when either of those input methods are used, which is understandable. But I can't seem to find an event that would be generated when a horizontal scroll is performed. The track pad allows for horizontal scrolling, since web browsers respond to the command, but I can't find any way to make my program respond to this input. Lime's "onMouseWheel" function doesn't respond to the input either. Do you guys have any suggestions for capturing this kind of input for an app targeted for Windows?
Thanks in advance
UPDATE: What I'm looking for here is not a question of how to scroll the screen horizontally, but how to recognize the horizontal scroll event coming from hardware, for example two fingers on the track pad or a sideways click of the middle mouse wheel. Lime's onMouseWheel has two params, deltaX and deltaY, but no events are triggered that give back a non-zero deltaX value. Vertical scrolling fires an event that returns deltaX = 0 and deltaY = +/- 1, but horizontal scrolling doesn't even trigger an event.
This can be done in several ways. The first is to add an event handler to mouse wheel for the object instance that you want to attach the event handler to, so MouseEvent.MOUSE_WHEEL and use the delta variable to determine the scroll direction. What you may also need to do is handle a key down event which enables horizontal scrolling instead of vertical.
Some example code:
mySprite.addEventHandler(MouseEvent.MOUSE_WHEEL, onScroll);
mySprite.addEventHandler(KeyboardEvent.KEY_DOWN, onKeyDown);
mySprite.addEventHandler(KeyboardEvent.KEY_UP, onKeyUp);
...
private var horizontal:Bool;
private function onScroll(e:MouseEvent):Void
{
if (e.delta > 0 && horizontal)
mySprite.scrollRect.x++;
else if (e.delta < 0 && horizontal)
mySprite.scrollRect.x--;
}
private function onKeyDown(e:KeyboardEvent):Void
{
if (e.keyCode == 18)
horizontal = true;
}
private function onKeyUp(e:KeyboardEvent):Void
{
if (e.keyCode == 18)
horizontal = false;
}
You will need to define the scrollRect in your constructor somewhere to specify the scrolling bounds of the sprite.
I am trying to scroll a panel using button tap, and the panel is scrolling as I want. But my problem is that,
After scroll end it back again to its initial position, doesn't stick to its new position.
Why this behavior and how can I get leave from this?
Code I used (working just fine)
var container = this.getDealdetails();
container.getScrollable().getScroller().scrollTo(x , y, true);
The scrollable container will scroll back if the scroll to position is greater than the height of the container.
This is best demonstrated with an example. Run this fiddle: http://www.senchafiddle.com/#8Qnt8
Make your browser window smaller in height and note how it behaves. Hope this makes sense.
var panel= Ext.getCmp('iObserveCreateRecords');
panel.getScrollable().getScroller().scrollTo(0, 0, true);
//iObserveCreateRecords is panel id
I am trying to slide a Panel from the bottom, so that it covers the entire viewport, like the Bookmarks panel in iOS Safari. This is similar to the ActionSheet, but fulscreen, and without the dark frame around it.
this.advSearch = Ext.ComponentMgr.create({xtype: 'advanced_search', itemId: 'pnlAdvancedSearch'});
this.advSearch.autoRender = true;
this.advSearch.show({type: 'slide', direction: 'up'});
This sort of works, but the new panel doesn't fill the whole screen, and parts of it appear behind the background panel. I've tried various layouts, including fit, vbox, with varying degrees of ugliness, but the root problem seems to be that the panel doesn't know how tall it needs to be. Maybe because it doesn't have a container?
Any suggestions? Is this even the right approach, or should I try to hack the ActionSheet to expand to fullscreen, and show without the border?
Thanks.
Because your panel is floating (or I presume it is), you will need to give the panel a fixed height in Sencha Touch 1. You are very restricted in that respect. This following code should work:
var sheet = new Ext.Sheet({
html: 'hello',
style: 'color:#fff',
height: window.innerHeight,
stretchX: true
});
// replace this show with your animation
sheet.show();
As you can see, I give it a fixed height of the window and then stretch it on the X axis (y doesn't work).
I am using ZedGraph and I want to zoom to a selected area by holding down Ctrl and dragging the box with the left mouse button instead of clicking and dragging with the middle mouse button.
The default behavior is to zoom with just the left mouse button and to pan with the middle mouse button, but I have switched these two operations already.
Does anyone have any idea how to make panning be called by clicking and dragging with the left button (without holding down Ctrl) and zooming be called by holding down Ctrl and then clicking and dragging with the left button?
The ZedGraphControl allows Pan & Zoom to be controlled through properties of the control. To enable panning with just the left mouse button:
zg1.PanButtons = MouseButtons.Left;
zg1.PanModifierKeys = Keys.None;
and to enable Zoom with Ctrl+Left mouse button:
zg1.ZoomButtons = MouseButtons.Left;
zg1.ZoomModifierKeys = Keys.Control;
The designer properties window doesn't seem to want to let you just specify Control for the Modifier Keys, so you'll have to put it in code - the Form's Load event handler, for example.
Have you try it by code using:
zg.GraphPane.XAxis.Scale.Min = xxxx;
zg.GraphPane.XAxis.Scale.Max = yyyy;
//and
zgc.ScrollGrace = 0.1;