public override void Undo()
{
view.Scroll = state.scroll;
Document doc = view.Document;
FitModes fit = view.CurrentFit;
double zoom = view.Zoom;
Bookmark root = doc.BookmarkRoot;
if (root != null)
{
Bookmark child = GetRootBookmark(root, state.bookmarks);
if (child != null)
{
child.Destroy();
}
}
if (doc.OptionalContentGroups.Count > state.layers)
{
IList <OptionalContentGroup> groups = doc.OptionalContentGroups;
for (int i = state.layers; i < groups.Count; ++i)
{
doc.RemoveOCG(groups[i]);
}
}
view.ClearPageCache();
doc.DeletePages(state.pages, doc.NumPages - 1);
view.Document = doc;
view.setZoom(fit, zoom);
}
public override void Do()
{
Document doc = view.Document;
FitModes fit = view.CurrentFit;
double zoom = view.Zoom;
Document newDoc = new Document(state.fileName);
doc.InsertPages(state.pages - 1, newDoc, 0, newDoc.NumPages, PageInsertFlags.All);
newDoc.Dispose();
view.Document = doc;
view.setZoom(fit, zoom);
view.Scroll = state.scroll;
}
/**
* zoomLevelChange(int) -
*
* Changes the current zoom level to that which is selected from
* our list of possible zoom levels. If fit to page or fit to width
* are selected it calculates the custom zoom level.
*/
public void zoomLevelChanged(int selectedZoomIndex)
{
if (customZoom && selectedZoomIndex == -1)
{
return; // OK, we just set these values in custom zoom
}
this.selectedZoomIndex = selectedZoomIndex;
string zoomLevel = zoomArray[selectedZoomIndex].ToString();
if (zoomLevel.Contains("Fit to"))
{
fit = zoomLevel.Contains("Page") ? FitModes.FitPage : FitModes.FitWidth;
}
else
{
// parse the String version of the zoom level to get the double version
zoomLevel = zoomLevel.Replace("%", "");
currentZoomFactor = (double.Parse(zoomLevel) / 100);
fit = FitModes.FitNone;
}
customZoom = false;
}
/**
* initialize -
*
* setup the default values for the zoom manager and create
* the zoomArray.
*/
private void initialize()
{
selectedZoomIndex = 3; // 100% by default
currentZoomFactor = 1.0;
fit = FitModes.FitNone;
// this is the list of zoom levels that should be displayed to the user
zoomArray = new String[13];
zoomArray[0] = "25%";
zoomArray[1] = "50%";
zoomArray[2] = "75%";
zoomArray[3] = "100%";
zoomArray[4] = "125%";
zoomArray[5] = "150%";
zoomArray[6] = "200%";
zoomArray[7] = "300%";
zoomArray[8] = "400%";
zoomArray[9] = "600%";
zoomArray[10] = "800%";
zoomArray[11] = "Fit to Width";
zoomArray[12] = "Fit to Page";
}
public ZoomEventArgs(double zoom, FitModes fit)
{
zoomMode = ZoomMode.CUSTOM;
this.zoom = zoom;
this.fit = fit;
}
