Perf: 提高默认样式的直线的绘制速度 (#214)

* ignore .history (generated by Local History extension)
* perf: 提高默认样式的直线的绘制速度(PS_GEOMETRIC 笔类型的绘制速度极慢)
* perf: 绘制直线时，如线型为 NULL_LINE 则跳过绘制只移动当前点

.gitignore

@@ -1,4 +1,5 @@
 .vs/
+.history
 *.tlog
 *.obj
 [Dd]ebug/

src/egegapi.cpp

@@ -256,26 +256,44 @@ void moverel(int dx, int dy, PIMAGE pimg)
 void line(int x1, int y1, int x2, int y2, PIMAGE pimg)
 {
     PIMAGE img = CONVERT_IMAGE(pimg);
-    MoveToEx(img->m_hDC, x1, y1, NULL);
-    LineTo(img->m_hDC, x2, y2);
+    if (img) {
+        if (img->m_linestyle.linestyle != NULL_LINE) {
+            MoveToEx(img->m_hDC, x1, y1, NULL);
+            LineTo(img->m_hDC, x2, y2);
+        } else {
+            MoveToEx(img->m_hDC, x2, y2, NULL);
+        }
+    }
     CONVERT_IMAGE_END;
 }
 
 void linerel(int dx, int dy, PIMAGE pimg)
 {
     PIMAGE img = CONVERT_IMAGE(pimg);
-    POINT pt;
-    GetCurrentPositionEx(img->m_hDC, &pt);
-    dx += pt.x;
-    dy += pt.y;
-    LineTo(img->m_hDC, dx, dy);
+    if (img) {
+        POINT pt;
+        GetCurrentPositionEx(img->m_hDC, &pt);
+        dx += pt.x;
+        dy += pt.y;
+        if (img->m_linestyle.linestyle != NULL_LINE) {
+            LineTo(img->m_hDC, dx, dy);
+        } else {
+            MoveToEx(img->m_hDC, dx, dy, NULL);
+        }
+    }
     CONVERT_IMAGE_END;
 }
 
 void lineto(int x, int y, PIMAGE pimg)
 {
     PIMAGE img = CONVERT_IMAGE(pimg);
-    LineTo(img->m_hDC, x, y);
+    if (img) {
+        if (img->m_linestyle.linestyle != NULL_LINE) {
+            LineTo(img->m_hDC, x, y);
+        } else {
+            MoveToEx(img->m_hDC, x, y, NULL);
+        }
+    }
     CONVERT_IMAGE_END;
 }
 
@@ -531,46 +549,59 @@ static int upattern2array(unsigned short pattern, DWORD style[])
 
 static void update_pen(PIMAGE img)
 {
-    LOGBRUSH lbr;
-    lbr.lbColor = ARGBTOZBGR(img->m_linecolor);
-    lbr.lbStyle = BS_SOLID;
-    lbr.lbHatch = 0;
-
     const int linestyle = img->m_linestyle.linestyle;
     const unsigned short pattern = img->m_linestyle.upattern;
     const int thickness = img->m_linestyle.thickness;
 
-    // 添加这些属性以获得正确的显示效果
-    int ls = linestyle | PS_GEOMETRIC;
+    HPEN hpen;
 
-    switch (img->m_linestartcap) {
-        case LINECAP_FLAT :  ls |= PS_ENDCAP_FLAT;   break;
-        case LINECAP_ROUND:  ls |= PS_ENDCAP_ROUND;  break;
-        case LINECAP_SQUARE: ls |= PS_ENDCAP_SQUARE; break;
-        default:             ls |= PS_ENDCAP_FLAT;   break;
-    }
+    if ((thickness == 1) && ((linestyle == SOLID_LINE) || (linestyle == NULL_LINE))) {
+        LOGPEN logPen;
+        logPen.lopnStyle = linestyle; // Other styles may be drawn incorrectly
+        logPen.lopnWidth.x = 1;       // Width
+        logPen.lopnWidth.y = 1;       // Unuse
+        logPen.lopnColor = ARGBTOZBGR(img->m_linecolor);
 
-    switch(img->m_linejoin) {
-        case LINEJOIN_MITER: ls |= PS_JOIN_MITER;    break;
-        case LINEJOIN_BEVEL: ls |= PS_JOIN_BEVEL;    break;
-        case LINEJOIN_ROUND: ls |= PS_JOIN_ROUND;    break;
-        default:             ls |= PS_JOIN_MITER;    break;
-    }
+        hpen = CreatePenIndirect(&logPen);
+    } else {
+        unsigned int penStyle = linestyle;
 
-    SetMiterLimit(img->m_hDC, img->m_linejoinmiterlimit, NULL);
+        penStyle |= PS_GEOMETRIC;
 
-    HPEN hpen;
-    if (linestyle == USERBIT_LINE) {
-        DWORD style[20] = {0};
-        int bn = upattern2array(pattern, style);
-        hpen = ExtCreatePen(ls, thickness, &lbr, bn, style);
-    } else {
-        hpen = ExtCreatePen(ls, thickness, &lbr, 0, NULL);
+        switch (img->m_linestartcap) {
+            case LINECAP_FLAT :  penStyle |= PS_ENDCAP_FLAT;   break;
+            case LINECAP_ROUND:  penStyle |= PS_ENDCAP_ROUND;  break;
+            case LINECAP_SQUARE: penStyle |= PS_ENDCAP_SQUARE; break;
+            default:             penStyle |= PS_ENDCAP_FLAT;   break;
+        }
+
+        switch(img->m_linejoin) {
+            case LINEJOIN_MITER: penStyle |= PS_JOIN_MITER;    break;
+            case LINEJOIN_BEVEL: penStyle |= PS_JOIN_BEVEL;    break;
+            case LINEJOIN_ROUND: penStyle |= PS_JOIN_ROUND;    break;
+            default:             penStyle |= PS_JOIN_MITER;    break;
+        }
+
+        LOGBRUSH lbr;
+        lbr.lbColor = ARGBTOZBGR(img->m_linecolor);
+        lbr.lbStyle = BS_SOLID;
+        lbr.lbHatch = 0;
+
+        if (linestyle == USERBIT_LINE) {
+            DWORD style[20] = {0};
+            int bn = upattern2array(pattern, style);
+            hpen = ExtCreatePen(penStyle, thickness, &lbr, bn, style);
+        } else {
+            hpen = ExtCreatePen(penStyle, thickness, &lbr, 0, NULL);
+        }
     }
+
     if (hpen) {
         DeleteObject(SelectObject(img->m_hDC, hpen));
     }
 
+    SetMiterLimit(img->m_hDC, img->m_linejoinmiterlimit, NULL);
+
     // why update pen not in IMAGE???
 #ifdef EGE_GDIPLUS
     Gdiplus::Pen* pen = img->getPen();