新增获取动态文本高度参数

src/qelmt/dynamictext.rs

@@ -28,7 +28,8 @@ pub struct DynamicText {
     text_from: String,
     v_alignment: VAlignment,
     frame: bool,
-    text_width: i32,
+    text_height: f64,
+    text_width: f64,
     keep_visual_rotation: bool,
     color: HexColor,
     reference_rectangle_width: f64,
@@ -49,32 +50,15 @@ impl From<&DynamicText> for XMLElement {
         // reversed and slightly modified after looking at the result in element-editor:
         //
         let pt_size: f64 = txt.font.point_size;
-        //
-        // we need the horizontal alignment and the text-width to move to right x-position:
-        // txt.reference_rectangle_width, // should be text-width (Group code 41)
-        // txt.attachment_point,  // Group code 71
-        //                        // 1 = Top left; 2 = Top center; 3 = Top right
-        //                        // 4 = Middle left; 5 = Middle center; 6 = Middle right
+        // 使用对象自身保存的 text_width（builder 已经计算或直接从 DXF 读取）
         //                        // 7 = Bottom left; 8 = Bottom center; 9 = Bottom right
         //
         //
         // it's just annoying if the value for "reference_rectangle_width" in the dxf is “0.0”...
         //
-        // o.k. ... as long as we do not know the real width:
-        // "guess" the width by number of characters and font-size:
-        //
-        let graphene_count = txt.text.graphemes(true).count();
-
-        let txt_width = if txt.reference_rectangle_width > 2.0 {
-            txt.reference_rectangle_width
-        } else {
-            // 不同的字母，宽度与高度的比例并不相同，0.75只是一个平均值
-            (graphene_count as f64) * pt_size * 0.75
-        };
-
         println!("文本:{}", txt.text);
         println!("对齐方式：{}, {}", txt.h_alignment, txt.v_alignment);
-        println!("文本宽度: {}", txt_width);
+        println!("文本宽度: {}", txt.text_width);
         println!("文本高度：{}", pt_size);
         println!("初始左下角位置: x={}, y={}", txt.x, txt.y);
         println!("初始对齐位置: x={}, y={}", txt.align_x, txt.align_y);
@@ -104,7 +88,7 @@ impl From<&DynamicText> for XMLElement {
             VAlignment::Bottom => txt.align_y + 1.0
         };
 
-        if(txt.h_alignment == HAlignment::Left && txt.v_alignment==VAlignment::Bottom) {
+        if txt.h_alignment == HAlignment::Left && txt.v_alignment==VAlignment::Bottom {
             align_x = txt.x-0.5;
             align_y = txt.y+1.0;
         }
@@ -146,6 +130,7 @@ impl From<&DynamicText> for XMLElement {
         dtxt_xml.add_attribute("Valignment", &txt.v_alignment);
         dtxt_xml.add_attribute("text_from", &txt.text_from);
         dtxt_xml.add_attribute("frame", txt.frame);
+        dtxt_xml.add_attribute("text_height", txt.text_height);
         dtxt_xml.add_attribute("text_width", txt.text_width);
         dtxt_xml.add_attribute("color", txt.color.display_rgb());
         dtxt_xml.add_attribute("align_x", two_dec(align_x));
@@ -373,7 +358,8 @@ impl<'a> DTextBuilder<'a> {
         dbg!(&y);
         dbg!(&self.text);*/
         let value = super::strip_mtext_control_sequences(&value);
-
+         // 将 DXF 中读取到的 text_height 放大 2 倍（用户要求）
+        let text_height = text_height * 2.0;
         DynamicText {
             //x: x - (calc_width as f64/2.0),
             x,
@@ -400,7 +386,8 @@ impl<'a> DTextBuilder<'a> {
             v_alignment,
             text_from: "UserText".into(),
             frame: false,
-            text_width: -1,
+            text_height,
+            text_width: -1.0, // for now, until I figure out what this should be
             color: self.color.unwrap_or(HexColor::BLACK),
 
             text: value,