feat(编辑能力): 修正文本选框与工具栏布局

assets/webui/ofdgo.css

@@ -3806,9 +3806,16 @@ audio.page-media {
 	}
 }
 
-@media (min-width: 901px) and (max-width: 1600px) and (pointer: fine) {
+@media (min-width: 901px) {
 	.editor-toolbar {
-		--editor-control-width: 52px;
+		flex-wrap: wrap;
+		row-gap: 8px;
+	}
+}
+
+@media (min-width: 901px) and (max-width: 1600px) {
+	.editor-toolbar {
+		--editor-control-width: 44px;
 	}
 
 	.editor-group {
@@ -3820,12 +3827,25 @@ audio.page-media {
 		padding-inline: 6px;
 	}
 
+	.editor-group > select {
+		appearance: none;
+		padding-inline: 2px 10px;
+		background-image: linear-gradient(45deg, transparent 50%, currentColor 50%), linear-gradient(135deg, currentColor 50%, transparent 50%);
+		background-position: right 5px center, right 2px center;
+		background-size: 3px 3px;
+		background-repeat: no-repeat;
+	}
+
 	.editor-group:has(#textFont) {
 		grid-template-columns: repeat(7, 44px);
 	}
 
 	.editor-paragraph {
-		grid-template-columns: var(--editor-control-width) 108px;
+		grid-template-columns: var(--editor-control-width) 100px;
+	}
+
+	.editor-group:has(#shapeFill) {
+		grid-template-columns: repeat(2, 76px);
 	}
 
 	.toolbar {

assets/webui/ofdgo_edit.js

@@ -689,11 +689,12 @@ export class CanvasEditor {
 		if (item.contour) item.contour.svg.setAttribute("viewBox", `${item.x} ${item.y} ${item.width} ${item.height}`);
 		if (item.textFrame) {
 			const { matrix: [a, b, c, d, e, f], width, height } = item.textFrame;
+			const box = item.textFrame.content || { x: 0, y: 0, width, height };
 			for (const handle of item.node.children) {
 				if (handle.dataset.corner !== "w" && handle.dataset.corner !== "e") continue;
-				const x = handle.dataset.corner === "e" ? width : 0;
-				handle.style.left = `${(a * x + c * height / 2 + e - item.x) * change.scale * PX_PER_MM}px`;
-				handle.style.top = `${(b * x + d * height / 2 + f - item.y) * change.scale * PX_PER_MM}px`;
+				const x = box.x + (handle.dataset.corner === "e" ? box.width : 0), y = box.y + box.height / 2;
+				handle.style.left = `${(a * x + c * y + e - item.x) * change.scale * PX_PER_MM}px`;
+				handle.style.top = `${(b * x + d * y + f - item.y) * change.scale * PX_PER_MM}px`;
 				handle.style.cursor = a === 0 ? "var(--resize-vertical, ns-resize)" : "var(--resize-horizontal, ew-resize)";
 			}
 		}
@@ -969,7 +970,7 @@ export class CanvasEditor {
 			if (drag.item.textFrame) {
 				const frame = drag.item.textFrame, [a, b, c, d] = frame.matrix;
 				const dx = (d * (to.x - from.x) - c * (to.y - from.y)) / (a * d - b * c);
-				const box = reshapeBox({ geometry: { x: 0, y: 0, width: frame.width, height: frame.height } }, dx, 0, drag.corner, false);
+				const box = reshapeBox({ geometry: frame.content || { x: 0, y: 0, width: frame.width, height: frame.height } }, dx, 0, drag.corner, false);
 				drag.box = { x: drag.item.x + box.x, width: box.width };
 				const bounds = transformedBox(box, frame.matrix);
 				Object.assign(drag.item.node.style, { left: `${bounds.x * PX_PER_MM}px`, top: `${bounds.y * PX_PER_MM}px`,
@@ -1130,7 +1131,8 @@ export class CanvasEditor {
 		if (drag.corner && drag.box) {
 			this.drag = null;
 			this.viewer.releasePointerCapture(drag.pointerID);
-			const geometry = drag.item.oriented?.box || drag.item.geometry || (drag.item.textFrame ? { x: drag.item.x, width: drag.item.textFrame.width } : drag.item);
+			const frame = drag.item.textFrame;
+			const geometry = drag.item.oriented?.box || drag.item.geometry || (frame ? { x: drag.item.x + (frame.content?.x || 0), width: frame.content?.width ?? frame.width } : drag.item);
 			const changed = Object.keys(drag.box).some((key) => drag.box[key] !== geometry[key]);
 			const apply = drag.item.shape || drag.item.oriented ? this.options.onReshape : canEditObject(drag.item, "stretch") ? this.options.onResize : this.options.onTextWidth;
 			Promise.resolve(changed && apply(drag.item, drag.box)).finally(() => {

internal/webui/wasm.go

@@ -2774,7 +2774,11 @@ func editorRichText(page int, item map[string]any, object ofdgo.GraphicObject, v
 		return
 	}
 	width, height := local.W, local.H
-	frame := matrix.TransformBox(local)
+	_, contentBounds, err := currentEditor.LayoutRichText(value, width)
+	if err != nil {
+		return
+	}
+	frame := matrix.TransformBox(contentBounds)
 	format, layout := value.Runs[0].Format, value.Layout
 	var content strings.Builder
 	for _, run := range value.Runs {
@@ -2792,7 +2796,7 @@ func editorRichText(page int, item map[string]any, object ofdgo.GraphicObject, v
 	item["letterSpacing"], item["leftIndent"], item["rightIndent"], item["firstLineIndent"] = layout.LetterSpacing, layout.LeftIndent, layout.RightIndent, layout.FirstLineIndent
 	item["paragraphWidth"], item["bounds"] = width, editorBox(frame)
 	item["x"], item["y"], item["width"], item["height"] = frame.X, frame.Y, frame.W, frame.H
-	item["textFrame"] = map[string]any{"width": width, "height": height, "matrix": editorMatrix(matrix)}
+	item["textFrame"] = map[string]any{"width": width, "height": height, "matrix": editorMatrix(matrix), "content": editorBox(contentBounds)}
 	capabilities := item["capabilities"].(map[string]any)
 	for _, key := range []string{"textContent", "rewriteText", "replaceFont", "reflow", "layoutKnown", "paint"} {
 		capabilities[key] = true

ofdgo_rich_layout.go

@@ -61,7 +61,7 @@ type richContextShaper struct {
 }
 
 // LayoutRichText 生成局部坐标的标准文字和路径，不修改页面或编辑历史。
-// 边界包含排版高度和溢出墨迹，可能有负的X或Y，不截断文字。
+// 边界包含内容的排版高度和溢出墨迹，不包含空余段落宽度，可能有负的X或Y。
 // 非标准RGB文档按需复用或注册RGB颜色空间，返回对象可直接用于当前文档。
 // 注册不产生修订或撤销记录；失败时不保留新增资源和资源编号。
 // 提交对象后应创建新的Reader；已有Reader是独立快照，不包含新注册的资源。
@@ -100,7 +100,7 @@ func (e *Editor) layoutRichText(value RichText, width float64) (richLayout, erro
 		return richLayout{}, err
 	}
 	metrics := make([]richMetrics, len(value.Runs))
-	result := richLayout{anchors: make([]int, len(value.Runs)), bounds: Box{W: width}}
+	result := richLayout{anchors: make([]int, len(value.Runs))}
 	owners := make([]int, 0, value.Len())
 	for i, run := range value.Runs {
 		font, err := e.editorFont(run.Format.Font)
@@ -205,7 +205,12 @@ func (e *Editor) layoutRichText(value RichText, width float64) (richLayout, erro
 			if err := richPositionSpans(spans, steps, local, x); err != nil {
 				return richLayout{}, err
 			}
-			result.bounds = richUnion(result.bounds, Box{X: x, Y: y, H: height})
+			lineBounds := Box{X: x, Y: y, H: height}
+			if result.bounds.H == 0 {
+				result.bounds = lineBounds
+			} else {
+				result.bounds = richUnion(result.bounds, lineBounds)
+			}
 			for _, span := range spans {
 				format := value.Runs[span.owner].Format
 				for _, glyph := range span.glyphs {
@@ -291,6 +296,9 @@ func (e *Editor) layoutRichText(value RichText, width float64) (richLayout, erro
 	if !finite(result.bounds.X) || !finite(result.bounds.Y) || !finite(result.bounds.W) || !finite(result.bounds.H) || result.bounds.H <= 0 {
 		return richLayout{}, fmt.Errorf("rich text layout overflow")
 	}
+	if result.bounds.W == 0 {
+		result.bounds.W = min(width, value.Runs[0].Format.Size)
+	}
 	for i, anchor := range result.anchors {
 		if anchor >= 0 {
 			continue