ImageCanvas canvas = ((ImageRegion)context.CurrentRegions[0]).GetCanvas();
            MenuButton FileType = new MenuButton("Blank File Type";

            string[] extension = new string[] { "*.png", "*.svg", "*.psd", "*.pdf", "*.dxf", "*.dwg" };

            for (int i = 0; i < extension.Length; i++)
            {
                FileType.AppendChild(extension[i], delegate(MenuButtonArgs args)
                                     {
                                         ImageCanvas c = ((ImageRegion)args.CurrentRegion).GetCanvas();
                                         c.select_ext = (string)args.MenuButton.Data;
                                     });

                FileType.Children[i].Data = extension[i];

                if (canvas.select_ext == extension[i])
                    FileType.Children[i].Checked = true;
            }

Wrote

The workflow for image type selection is:

1. Select the extension (.png is preselected)
2. Double click empty region
3. Blank file will be created on the fly (if no file exists already)

It might make more sense to rename the button to Blank File Type.

Wrote

Also do you think that "open with" on double click is better than open? Sounds like extra step..

Wrote

Alex, ask Andrey make access to the repository. It is possible to change access permissions to plugin. You will be able to make changes and we can watch for this.

Wrote

Hi all. Sorry if this is off-topic
You may have already tried these .Net components to display SVG:
https://lasithapetthawadu.wordpress.com/2014/02/24/using-vector-svg-graphics-in-c-net/
https://github.com/vvvv/SVG
http://www.codeproject.com/Articles/127039/SharpVectors-SVG-Reloaded-An-Introduction
A dirty alternative could be saving drawings in psd format and displaying them in Smath by means of a conversion process transparent to the user.
Thanks.

Wrote

Nice

I think the text of "Open as..." would be better as "Open with..."

I noticed also that the end of the resize logic should be improved; maybe something like this:

		private bool IsResizing;

		// ...

		public override void OnMouseDown(MouseEventArgs e)
		{
			if (this.GetCursorType(e) != CursorType.Arrow)
			{
			    this.IsResizing = true;
			    // ...
			}

			// ...
		}

		public override void OnMouseUp(MouseEventArgs e)
		{
			if (this.IsResizing)
			{
			    this.IsResizing = false;
			    // Update logic
			    // ...
			    this.Invalidate();
			}

			// ...
		}

Wrote

Davide, is there a way to get indicate to Smath that image has changed (rotated) and workbook must be saved before closing? Right know if you rotate the image and close the workbook no prompt comes up to save the .sm file

        // ...

        public override HistoryStepBase GetHistoryStep()
        {
            return new NumericUpDownHistoryStep(this);
        }

        // ...

this.CreateHistoryStep("...";

Wrote

Alex,

Can you rotate this image by some degree [let say 30].

Jean

Rotate Image Test Alex.sm (245 КиБ) скачан 56 раз(а).

Wrote

Jean, image region will not rotate the image in the exposed to the user matrix manipulation way. It rotates the image using built in .NET command, and can only do it in 90 degree increments.

Wrote

Wrote

Davide, is there a way to get indicate to Smath that image has changed (rotated) and workbook must be saved before closing? Right know if you rotate the image and close the workbook no prompt comes up to save the .sm file

Hello Alex,

sure, you have to implement your own HistoryStep class that extends the built-in HistoryStepBase;

Look for example the NumericUpDownRegion

- The core: NumericUpDownHistoryStep.cs

- In the region holder:

        // ...

        public override HistoryStepBase GetHistoryStep()
        {
            return new NumericUpDownHistoryStep(this);
        }

        // ...

- After you change a property:

this.CreateHistoryStep("...";

Wrote

Wrote

Jean, image region will not rotate the image in the exposed to the user matrix manipulation way. It rotates the image using built in .NET command, and can only do it in 90 degree increments.

You can use the built-in RotateTransform (look at the accepted answer here); as for the context menu, can be handled like "line spacing" for WriterRegions - and if you want you can keep the old code for the existing values)

Wrote

Originally Posted by: Davide Carpi [/url]Originally Posted by: Alex.M Jean, image region will not rotate the image in the exposed to the user matrix manipulation way. It rotates the image using built in .NET command, and can only do it in 90 degree increments.

You can use the built-in RotateTransform (look at the accepted answer [url=http://stackoverflow.com/questions/14184700/how-to-rotate-image-x-degrees-in-c]here); as for the context menu, can be handled like "line spacing" for WriterRegions - and if you want you can keep the old code for the existing values)

Wrote

... forgot to attach rot ± 90, -180 [mirror] & inverse grayscale

jean

Rotate Image Test Alex.sm (270 КиБ) скачан 63 раз(а).