I'm have a picture box control and 2 Command Buttons. I have an image displayed inside the picture box.
Is it possible to zoom the image when the Zoom-in and Zoom out buttons are clicked?
Or I can even put a scroll bar. Is it possible to zoom the image according to the scroll bar movements?
I'm using VB 6.
I assume here that you are using BMP or JPG files here.
The simple scratch method is to place an Image control in the PictureBox, initially with the property Stretch = False. Initially, it would be in the top left hand corner. After setting the Picture property to your picture object, the Image control will be resized to fit the image. Save the original width and height of the control in variables. Now set Stretch = True. You can zoom in by resizing the image using
img.Move 0, 0, sngWidth * sngMagFactor, sngHeight * sngMagFactor
Where sngMaxFactor = 4! or however much you want to zoom by.
Restore back to original size by:
img.Move 0, 0, sngWidth, sngHeight
You can also pan the zoomed image by altering the Left and Top arguments in the Move() method.
It might be easiest to use two pic boxes, one inside the other. The 'outer' box can be thought of as a viewport into the 'inner' box, which you resize and position as needed. The effect will be the same but the coding is much simpler.
Related
I'm working on a new UI-element in an vb6 programm. I need to place pictures dynamically on 2 diffenent colored background lines:
I tried out two different ideas but none of them is working:
Idea 1
I used image control and assigned an image to the control. Then I set left, top, with and hight properties to values where I want to place the image. Image was places at correct position but not in foregound on a frame but in background (behind coloured frame).
Can anyone tell me how I can place an image control in foreground (on green coloured frame)? I need to place these image controlls dynamically from code in running program.
Idea 2
In second sulution I tried to use picturebox instead of image control. Picturebox can be placed on colored background (frame) without any problems.
Here the problem is that loaded picture has to be scaled to size of picturebox picture property. Picture is loaded to picturebox by following code: Picture.Picture = LoadPicture("F:\img.JPG")
Does anyone know how I can scale this img to size of picturebox?
Can anyone help me to follow up one of the solutions. In principle I would prefere to use Image controls if it is polible to place them in foreground on frame.
I'm going to guess that after creating the image control, you are moving it onto the Frame. If so, this is why the control is behind the Frame. You really want the image to be inside the frame. The key to do this is to set the Container property.
Dim img As Image
Set img = Me.Controls.Add("VB.Image", "Image1")
If Not img Is Nothing Then
img.Move 200, 200, 400, 400
img.Stretch = True
img.Picture = LoadPicture("your image.jpg")
Set img.Container = Frame1
img.Visible = True
End If
I have a background image and I need to add bunch of oval buttons or images on in my case the "greenish" buttons on top of the background image, that I can click in each one of them and call a function passing a parameter. Please look on the screen shot and let me know how I can position every one of the buttons on top of the image and access them with a click (onPress). I guess the only way is using flex box but I couldn't figure out the style for it.
Thanks
Just style all the green buttons on relatively to the image's boundaries with position: absolute. Percentage values for positioning should work, if your image scales properly on screen size change.
I have a borderPane with a menu top,a grid left and an image in the center.I want the image to have the same size as the center of the border because now the image goes over my grid.
I tried this:
imageView.fitWidthProperty().bind(box.widthProperty());
where imageView is the name for my image and box is the BorderPane object.Thank you.
See JavaFX Feature Request RT-21337 Add ImageViewPane and MediaViewPane controls which contains a code attachment for a sample ImageViewPane implementation which which will resize the ImageView it contains to the area available to the region. To get the behaviour required you might also need to implement computeMinWidth and computeMinHeight on the ImageViewPane so that they return zero rather than the minimum size of the Image.
now the image goes over my grid
This is because the minimum size of your image is currently larger than the available space of the center of your BorderPane:
BorderPane does not clip its content by default, so it is possible that childrens' bounds may extend outside its own bounds if a child's min size prevents it from being fit within it space.
Some potential alternatives to prevent the center content overflowing the border:
Manually set a clip on the center node to prevent it overflowing the borders.
Dynamically resize the ImageView as in the ImageViewPane sample linked above.
Place the ImageView in a ScrollPane.
Use the css -fx-background-image attributes to display and dynamcially resize your image rather than using an ImageView.
Set the center of the borderpane first before setting the border content, that way it will be rendered underneath the border content.
Use a different construct from a borderpane (e.g. a HBoxes, VBoxes, etc.) which don't overlap their nodes when the nodes are larger than the available display area.
I tried this: imageView.fitWidthProperty().bind(box.widthProperty());
My guess from the code provided is that this didn't work because the enclosing box of the image is a dynamically resizable pane of some sort, so the minimum width of the box is being determined by the width of the image and not vice versa.
I wanted to draw a rectangle with rounded corners in SSRS. But, after lot of research i got to know that currently there is no property for that. So, i am trying to use an image of a rectangle with rounded corners and on top of that trying to align the table and other controls within the image. But, when i am previewing it or exporting it to a PDF file, first the image is getting displayed, then below that all other controls comes. Am i doing anything wrong. Please let me know.
Why don't you try to enclose your image rectangle and other controls etc. within an SSRS Rectangle with BorderStyle = None...
Try following:
Create an image (the rectangle with rounded corners) in your favourite image drawing program. I did mine in Microsoft Paint
and save it as JPEG.
In SSRS report design, in Report Data pane, right click on Images >> Add Image and point to the image that you created in Step 1. (Untitled, in my case see the fig. below)
In SSRS report design, add a Rectangle from the Toolbox to the design surface and in the Properties Pane:
a) look for the BackgroundImage property Click its + sign. then
b) Enter values for Source as Embedded, BackgroundRepeat as Clip and the Value property , when you click the dropdown for its values, should show you the name of the image that you embedded in Step-2, select this name
Resize your rectangle to fit the shape and add your items to this rectangle.
EDIT:
Regarding the question in the Comment, I don't think that the size of the image rectangle can be increased dynamically. If that's the case then you may need to find some other work-around
HTH
I've written some code which displays a wx.Frame, within which there is a wx.Panel, within which there is a jpg. The jpg is the same size as the frame, so that when the program starts up the user is presented with a picture covering the whole of the window. Overlayed over the top of this picture, and in the centre of the panel I want to put a wx.BoxSizer containing various widgets. So far I've got the sizer visible but, try as I might, I cannot shift it from the uppermost lefthand corner of the panel to the center. No doubt there are many round-about ways of doing this involving grids and borders, but before I set off down this path, I was wondering if I'm missing something simple and there is a command that can be used to position in widget in a specified part of a panel.
ps. I also know I could do this using absolute positioning, but I want to be able to resize the window while keeping the sizer at its centre.
Normally, you can't see a sizer. But regardless, you don't really center a sizer. You center the widgets INSIDE the sizer. So when you add a widget to the sizer, you'd want to do something like this:
mySizer = wx.BoxSizer(wx.VERTICAL)
mySizer.Add(widget, 0, wx.CENTER|wx.ALL, 5)
Now, that will only center it horizontally. If you want it in the very center of the panel, then create another BoxSizer that is oriented horizontally and add the first sizer to the second one, centering it too.
hSizer = wx.BoxSizer(wx.HORIZONTAL)
hSizer.Add(mySizer, 0, wx.CENTER)