Libre Office 宏裁剪图像

Question

我有一个 Libre Office 宏，我需要裁剪图像，但我找不到任何有用的文档或示例。谁知道怎么做？

dim noArgs()
dim emptyDocComponent as object
dim document as object
dim dispatcher as object
emptyDocComponent = StarDesktop.LoadComponentFromUrl("private:factory/swriter", "_blank", 0, noArgs())
frame = ThisComponent.CurrentController.Frame
dispatcher = createUnoService("com.sun.star.frame.DispatchHelper")

dim args1(3) as new com.sun.star.beans.PropertyValue
args1(0).Name = "FileName"
args1(0).Value = "file://" & inputPath
args1(1).Name = "FilterName"
args1(1).Value = "<All formats>"
args1(2).Name = "AsLink"
args1(2).Value = false
args1(3).Name = "Style"
args1(3).Value = "Graphics"

dispatcher.executeDispatch(frame, ".uno:InsertGraphic", "", 0, args1())

selection = ThisComponent.CurrentSelection
If selection.ImplementationName <> "SwXTextGraphicObject" Then
   Exit Sub
End If

' this is what the macro recorder captured, but it was "rem" and non-functional
rem dispatcher.executeDispatch(document, ".uno:Crop", "", 0, Array())

*** 编辑

这是我现在正在使用的，以防对其他人有帮助。我有一张需要裁剪的像素大小已知的图片。不能完全确定计算是否完全准确，但到目前为止它是有效的。

dim noArgs()
dim emptyDocComponent as object
dim document as object
dim dispatcher as object
emptyDocComponent = StarDesktop.LoadComponentFromUrl("private:factory/swriter", "_blank", 0, noArgs())
frame = ThisComponent.CurrentController.Frame
dispatcher = createUnoService("com.sun.star.frame.DispatchHelper")

dim args1(3) as new com.sun.star.beans.PropertyValue
args1(0).Name = "FileName"
args1(0).Value = "file://" & inputPath
args1(1).Name = "FilterName"
args1(1).Value = "<All formats>"
args1(2).Name = "AsLink"
args1(2).Value = false
args1(3).Name = "Style"
args1(3).Value = "Graphics"

dispatcher.executeDispatch(frame, ".uno:InsertGraphic", "", 0, args1())

selection = ThisComponent.CurrentSelection
If selection.ImplementationName <> "SwXTextGraphicObject" Then
   Exit Sub
End If

' size = (pixels / pixelsPerInch) * mm/in * scaling * actual graphic / displayed graphic
imageWidth = (int(pixelWidth) / int(xPixelsPerInch)) * 25.4 * 110 * (selection.actualSize.Width / selection.Width)
imageHeight = (int(pixelHeight) / int(yPixelsPerInch)) * 25.4 * 110 * (selection.actualSize.Height / selection.Height)

GraphicCrop = selection.GraphicCrop
GraphicCrop.Top = selection.actualSize.Height - imageHeight
GraphicCrop.Bottom = 0
GraphicCrop.Left = 0
GraphicCrop.Right = selection.actualSize.Width - imageWidth
selection.GraphicCrop = GraphicCrop

Answer 1

在网络上搜索 "DannyB"（与 OpenOffice 结合使用）以找到关于 Draw 组件的 StarBasic 宏的非常有用的库。

我很确定他有一个例子。

要研究的其他资源：Andrew Pitonyak 的 "OpenOffice Macros Explained"，可能也有示例。

Answer 2

TextGraphicObject 有一个名为 GraphicCrop 的结构。

以下代码改编自https://forum.openoffice.org/en/forum/viewtopic.php?f=25&t=72496。

selection = ThisComponent.CurrentSelection
If selection.ImplementationName <> "SwXTextGraphicObject" Then
   Exit Sub
End If

pxPerInch = 100*25.6
cropFig = selection.GraphicCrop
cropFig.Left = 0.27*pxPerInch
cropFig.Right = 1.34*pxPerInch
cropFig.Top = 0.31*pxPerInch
cropFig.Bottom = 0.18*pxPerInch
selection.GraphicCrop = cropFig