【发布时间】：2011-10-08 15:00:57
【问题描述】：
我已经开发了一段时间的 gui，它需要创建 Mathematica 所缺乏的通用控件对象（例如微调器、树视图、openerbar 等）。一种是多面板，即一个面板对象，它被分成两个（或更多）子面板，其中的分隔符可以通过鼠标设置。这是我的双窗格版本。我想听听您关于如何将其扩展为不仅可以处理 2 个子窗格，还可以处理任意数量的子窗格以及如何优化它的意见和想法。目前，对于负载很重的子窗格，它非常滞后，不知道为什么。
Options[SplitPane] = {Direction -> "Vertical",
DividerWidth -> Automatic, Paneled -> {True, True}};
SplitPane[opts___?OptionQ] :=
Module[{dummy}, SplitPane[Dynamic[dummy], opts]];
SplitPane[val_, opts___?OptionQ] := SplitPane[val, {"", ""}, opts];
SplitPane[val_, content_, opts___?OptionQ] :=
SplitPane[val, content, {100, 50}, opts];
SplitPane[Dynamic[split_, arg___], {expr1_, expr2_}, {maxX_, maxY_},
opts___?OptionQ] :=
DynamicModule[{temp, dir, d, panel, coord, max, fix, val},
{dir, d, panel} = {Direction, DividerWidth, Paneled} /. {opts} /.
Options[SplitPane];
dir = dir /. {Bottom | Top | "Vertical" -> "Vertical", _ ->
"Horizontal"};
d = d /. Automatic -> 2;
split = If[NumberQ[split], split, max/2];
val = Clip[split /. {_?NumberQ -> split, _ -> maxX/2}, {0, maxX}];
{coord, max, fix} =
Switch[dir, "Vertical", {First, maxX, maxY},
"Horizontal", {(max - Last[#]) &, maxY, maxX}];
panel = (# /. {None | False ->
Identity, _ -> (Panel[#, ImageMargins -> 0,
FrameMargins -> -1] &)}) & /@ panel;
Grid[If[dir === "Vertical",
{{
Dynamic[
panel[[1]]@
Pane[expr1, ImageSize -> {split - d, fix},
ImageSizeAction -> "Scrollable", Scrollbars -> Automatic,
AppearanceElements -> None], TrackedSymbols :> {split}],
Deploy@EventHandler[
MouseAppearance[
Pane[Null, ImageSize -> {d*2, fix}, ImageMargins -> -1,
FrameMargins -> -1], "FrameLRResize"],
"MouseDown" :> (temp =
coord@MousePosition@"CellContentsAbsolute";
split =
If[Abs[temp - split] <= d \[And] 0 <= temp <= max, temp,
split]),
"MouseDragged" :> (temp =
coord@MousePosition@"CellContentsAbsolute";
split = If[0 <= temp <= max, temp, split])],
Dynamic@
panel[[2]]@
Pane[expr2, ImageSizeAction -> "Scrollable",
Scrollbars -> Automatic, AppearanceElements -> None,
ImageSize -> {max - split - d, fix}]
}},
{
List@
Dynamic[panel[[1]]@
Pane[expr1, ImageSize -> {fix, split - d},
ImageSizeAction -> "Scrollable", Scrollbars -> Automatic,
AppearanceElements -> None], TrackedSymbols :> {split}],
List@Deploy@EventHandler[
MouseAppearance[
Pane[Null, ImageSize -> {fix, d*2}, ImageMargins -> -1,
FrameMargins -> -1], "FrameTBResize"],
"MouseDown" :> (temp =
coord@MousePosition@"CellContentsAbsolute";
split =
If[Abs[temp - split] <= d \[And] 0 <= temp <= max, temp,
split]),
"MouseDragged" :> (temp =
coord@MousePosition@"CellContentsAbsolute";
split = If[0 <= temp <= max, temp, split])],
List@
Dynamic[panel[[2]]@
Pane[expr2, ImageSizeAction -> "Scrollable",
Scrollbars -> Automatic,
ImageSize -> {fix, max - split - d},
AppearanceElements -> None], TrackedSymbols :> {split}]
}
], Spacings -> {0, -.1}]
];
SplitPane[val_, arg___] /; NumberQ[val] :=
Module[{x = val}, SplitPane[Dynamic[x], arg]];
pos = 300;
SplitPane[
Dynamic[pos], {Manipulate[
Plot[Sin[x (1 + a x)], {x, 0, 6}], {a, 0, 2}],
Factorial[123]}, {500, 300}]
【问题讨论】：
-
令人印象深刻！至于优化：如何使用 ControlActive 和/或 SynchronousUpdating 选项？
-
非常好的工作，但请记住，您的“问题”格式不适合该网站。这里的 Mma 社区对此通常是宽容的，但请尽量根据网站的一般规则制定您的问题，以避免关闭（和删除）投票。
标签： user-interface wolfram-mathematica