graphics.html

来自「维信SDK文档。源码要求为至少5个C或Java源码」· HTML 代码 · 共 557 行 · 第 1/2 页

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<B>Method Detail</B></FONT></TH>
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<A NAME="getColor()"><!-- --></A><H3>
getColor</H3>
<PRE>
       int <B>getColor</B>()</PRE>
<DL>
<DD>Gets the current color.
<P>
<DD><DL>

<DT><B>Returns:</B><DD>an integer in form <code>0x00RRGGBB</code><DT><B>See Also:</B><DD><A HREF="../../widsets/api/Graphics.html#setColor(int)"><CODE>setColor(int)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="setColor(int)"><!-- --></A><H3>
setColor</H3>
<PRE>
       void <B>setColor</B>(int&nbsp;color)</PRE>
<DL>
<DD>Sets the current color to the specified RGB values. All subsequent
 rendering operations will use this specified color. The RGB value
 passed in is interpreted with the least significant eight bits
 giving the blue component, the next eight more significant bits
 giving the green component, and the next eight more significant
 bits giving the red component. That is to say, the color component
 is specified in the form of <code>0x00RRGGBB</code>. The high
 order byte of this value is ignored.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>color</CODE> - the color being set<DT><B>See Also:</B><DD><A HREF="../../widsets/api/Graphics.html#getColor()"><CODE>getColor()</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="getFont()"><!-- --></A><H3>
getFont</H3>
<PRE>
       <A HREF="../../widsets/api/Font.html" title="class in ">Font</A> <B>getFont</B>()</PRE>
<DL>
<DD>Gets the current font used by text drawing operations.
<P>
<DD><DL>

<DT><B>Returns:</B><DD>current font<DT><B>See Also:</B><DD><A HREF="../../widsets/api/Graphics.html#setFont(Font)"><CODE>setFont(Font)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="setFont(Font)"><!-- --></A><H3>
setFont</H3>
<PRE>
       void <B>setFont</B>(<A HREF="../../widsets/api/Font.html" title="class in ">Font</A>&nbsp;font)</PRE>
<DL>
<DD>Sets the font for all subsequent text rendering operations.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>font</CODE> - the specified font<DT><B>See Also:</B><DD><A HREF="../../widsets/api/Graphics.html#getFont()"><CODE>getFont()</CODE></A>, 
<A HREF="../../widsets/api/Graphics.html#drawString(String, int, int, int)"><CODE>drawString(String, int, int, int)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="drawLine(int, int, int, int)"><!-- --></A><H3>
drawLine</H3>
<PRE>
       void <B>drawLine</B>(int&nbsp;x1,
                     int&nbsp;y1,
                     int&nbsp;x2,
                     int&nbsp;y2)</PRE>
<DL>
<DD>Draws a line between the coordinates <code>(x1,y1)</code> and
 <code>(x2,y2)</code> using
 the current color and stroke style.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>x1</CODE> - the x coordinate of the start of the line<DD><CODE>y1</CODE> - the y coordinate of the start of the line<DD><CODE>x2</CODE> - the x coordinate of the end of the line<DD><CODE>y2</CODE> - the y coordinate of the end of the line</DL>
</DD>
</DL>
<HR>

<A NAME="drawRect(int, int, int, int)"><!-- --></A><H3>
drawRect</H3>
<PRE>
       void <B>drawRect</B>(int&nbsp;x,
                     int&nbsp;y,
                     int&nbsp;width,
                     int&nbsp;height)</PRE>
<DL>
<DD>Draws the outline of the specified rectangle using the current
 color and stroke style.
 The resulting rectangle will cover an area <code>(width + 1)</code>
 pixels wide by <code>(height + 1)</code> pixels tall.
 If either width or height is less than
 zero, nothing is drawn.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>x</CODE> - the x coordinate of the rectangle to be drawn<DD><CODE>y</CODE> - the y coordinate of the rectangle to be drawn<DD><CODE>width</CODE> - the width of the rectangle to be drawn<DD><CODE>height</CODE> - the height of the rectangle to be drawn<DT><B>See Also:</B><DD><A HREF="../../widsets/api/Graphics.html#fillRect(int, int, int, int)"><CODE>fillRect(int, int, int, int)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="fillRect(int, int, int, int)"><!-- --></A><H3>
fillRect</H3>
<PRE>
       void <B>fillRect</B>(int&nbsp;x,
                     int&nbsp;y,
                     int&nbsp;width,
                     int&nbsp;height)</PRE>
<DL>
<DD>Fills the specified rectangle with the current color.
 If either width or height is zero or less,
 nothing is drawn.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>x</CODE> - the x coordinate of the rectangle to be filled<DD><CODE>y</CODE> - the y coordinate of the rectangle to be filled<DD><CODE>width</CODE> - the width of the rectangle to be filled<DD><CODE>height</CODE> - the height of the rectangle to be filled<DT><B>See Also:</B><DD><A HREF="../../widsets/api/Graphics.html#drawRect(int, int, int, int)"><CODE>drawRect(int, int, int, int)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="fillTriangle(int, int, int, int, int, int)"><!-- --></A><H3>
fillTriangle</H3>
<PRE>
       void <B>fillTriangle</B>(int&nbsp;x1,
                         int&nbsp;y1,
                         int&nbsp;x2,
                         int&nbsp;y2,
                         int&nbsp;x3,
                         int&nbsp;y3)</PRE>
<DL>
<DD>Fills the specified triangle will the current color.  The lines
 connecting each pair of points are included in the filled
 triangle.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>x1</CODE> - the x coordinate of the first vertex of the triangle<DD><CODE>y1</CODE> - the y coordinate of the first vertex of the triangle<DD><CODE>x2</CODE> - the x coordinate of the second vertex of the triangle<DD><CODE>y2</CODE> - the y coordinate of the second vertex of the triangle<DD><CODE>x3</CODE> - the x coordinate of the third vertex of the triangle<DD><CODE>y3</CODE> - the y coordinate of the third vertex of the triangle</DL>
</DD>
</DL>
<HR>

<A NAME="drawImage(Image, int, int, int)"><!-- --></A><H3>
drawImage</H3>
<PRE>
       void <B>drawImage</B>(<A HREF="../../widsets/api/Image.html" title="class in ">Image</A>&nbsp;img,
                      int&nbsp;x,
                      int&nbsp;y,
                      int&nbsp;anchor)</PRE>
<DL>
<DD>Draws the specified image by using the anchor point.
 The image can be drawn in different positions relative to
 the anchor point by passing the appropriate position constants.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>img</CODE> - the specified image to be drawn<DD><CODE>x</CODE> - the x coordinate of the anchor point<DD><CODE>y</CODE> - the y coordinate of the anchor point<DD><CODE>anchor</CODE> - the anchor point for positioning the image</DL>
</DD>
</DL>
<HR>

<A NAME="drawString(String, int, int, int)"><!-- --></A><H3>
drawString</H3>
<PRE>
       void <B>drawString</B>(<A HREF="../../widsets/api/String.html" title="class in ">String</A>&nbsp;str,
                       int&nbsp;x,
                       int&nbsp;y,
                       int&nbsp;anchor)</PRE>
<DL>
<DD>Draws the specified <code>String</code> using the current font and color.
 The <code>x,y</code> position is the position of the anchor point.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>str</CODE> - the <code>String</code> to be drawn<DD><CODE>x</CODE> - the x coordinate of the anchor point<DD><CODE>y</CODE> - the y coordinate of the anchor point<DD><CODE>anchor</CODE> - the anchor point for positioning the text</DL>
</DD>
</DL>
<HR>

<A NAME="fillArc(int, int, int, int, int, int)"><!-- --></A><H3>
fillArc</H3>
<PRE>
       void <B>fillArc</B>(int&nbsp;x,
                    int&nbsp;y,
                    int&nbsp;width,
                    int&nbsp;height,
                    int&nbsp;startAngle,
                    int&nbsp;arcAngle)</PRE>
<DL>
<DD>Fills a circular or elliptical arc covering the specified rectangle.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>x</CODE> - the x coordinate of the upper-left corner of the arc to be filled.<DD><CODE>y</CODE> - the y coordinate of the upper-left corner of the arc to be filled.<DD><CODE>width</CODE> - the width of the arc to be filled<DD><CODE>height</CODE> - the height of the arc to be filled<DD><CODE>startAngle</CODE> - the beginning angle [0..360].<DD><CODE>arcAngle</CODE> - the angular extent of the arc, relative to the start angle [0..360].</DL>
</DD>
</DL>
<HR>

<A NAME="drawArc(int, int, int, int, int, int)"><!-- --></A><H3>
drawArc</H3>
<PRE>
       void <B>drawArc</B>(int&nbsp;x,
                    int&nbsp;y,
                    int&nbsp;width,
                    int&nbsp;height,
                    int&nbsp;startAngle,
                    int&nbsp;arcAngle)</PRE>
<DL>
<DD>Draws a circular or elliptical arc covering the specified rectangle.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>x</CODE> - the x coordinate of the upper-left corner of the arc to be filled.<DD><CODE>y</CODE> - the y coordinate of the upper-left corner of the arc to be filled.<DD><CODE>width</CODE> - the width of the arc to be filled<DD><CODE>height</CODE> - the height of the arc to be filled<DD><CODE>startAngle</CODE> - the beginning angle [0..360].<DD><CODE>arcAngle</CODE> - the angular extent of the arc, relative to the start angle [0..360].</DL>
</DD>
</DL>
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