graphics.html

是MIDP 的API 查詢文件, 大家可以看一下裡面的index.html, 再用Package 或 Class 名字來查.

<HR>

<A NAME="getRedComponent()"><!-- --></A><H3>
getRedComponent</H3>
<PRE>
public int <B>getRedComponent</B>()</PRE>
<DL>
<DD>Gets the red component of the current color.<DD><DL>
<DT><B>Returns:</B><DD>integer value in range <code>0-255</code><DT><B>See Also: </B><DD><A HREF="../../../javax/microedition/lcdui/Graphics.html#setColor(int, int, int)"><CODE>setColor(int, int, int)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="getGreenComponent()"><!-- --></A><H3>
getGreenComponent</H3>
<PRE>
public int <B>getGreenComponent</B>()</PRE>
<DL>
<DD>Gets the green component of the current color.<DD><DL>
<DT><B>Returns:</B><DD>integer value in range <code>0-255</code><DT><B>See Also: </B><DD><A HREF="../../../javax/microedition/lcdui/Graphics.html#setColor(int, int, int)"><CODE>setColor(int, int, int)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="getBlueComponent()"><!-- --></A><H3>
getBlueComponent</H3>
<PRE>
public int <B>getBlueComponent</B>()</PRE>
<DL>
<DD>Gets the blue component of the current color.<DD><DL>
<DT><B>Returns:</B><DD>integer value in range <code>0-255</code><DT><B>See Also: </B><DD><A HREF="../../../javax/microedition/lcdui/Graphics.html#setColor(int, int, int)"><CODE>setColor(int, int, int)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="getGrayScale()"><!-- --></A><H3>
getGrayScale</H3>
<PRE>
public int <B>getGrayScale</B>()</PRE>
<DL>
<DD>Gets the current grayscale value of the color being used for rendering
 operations. If the color was set by
 <code>setGrayScale()</code>, that value is simply
 returned. If the color was set by one of the methods that allows setting
 of the red, green, and blue components, the value returned is 
 computed from
 the RGB color components (possibly in a device-specific fashion)
 that best
 approximates the brightness of that color.<DD><DL>
<DT><B>Returns:</B><DD>integer value in range <code>0-255</code><DT><B>See Also: </B><DD><A HREF="../../../javax/microedition/lcdui/Graphics.html#setGrayScale(int)"><CODE>setGrayScale(int)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="setColor(int, int, int)"><!-- --></A><H3>
setColor</H3>
<PRE>
public void <B>setColor</B>(int&nbsp;red,
                     int&nbsp;green,
                     int&nbsp;blue)</PRE>
<DL>
<DD>Sets the current color to the specified RGB values. All subsequent
 rendering operations will use this specified color.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>red</CODE> - the red component of the color being set in range
 <code>0-255</code><DD><CODE>green</CODE> - the green component of the color being set in range
 <code>0-255</code><DD><CODE>blue</CODE> - the blue component of the color being set in range
 <code>0-255</code><DT><B>Throws:</B><DD><CODE><A HREF="../../../java/lang/IllegalArgumentException.html">IllegalArgumentException</A></CODE> - if any of the color components
 are outside of range <code>0-255</code><DT><B>See Also: </B><DD><A HREF="../../../javax/microedition/lcdui/Graphics.html#getColor()"><CODE>getColor()</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="setColor(int)"><!-- --></A><H3>
setColor</H3>
<PRE>
public void <B>setColor</B>(int&nbsp;RGB)</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.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>RGB</CODE> - the color being set<DT><B>See Also: </B><DD><A HREF="../../../javax/microedition/lcdui/Graphics.html#getColor()"><CODE>getColor()</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="setGrayScale(int)"><!-- --></A><H3>
setGrayScale</H3>
<PRE>
public void <B>setGrayScale</B>(int&nbsp;value)</PRE>
<DL>
<DD>Sets the current grayscale to be used for all subsequent
 rendering operations. For monochrome displays, the behavior
 is clear. For color displays, this sets the color for all
 subsequent drawing operations to be a gray color equivalent
 to the value passed in. The value must be in the range
 <code>0-255</code>.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>value</CODE> - the desired grayscale value<DT><B>Throws:</B><DD><CODE><A HREF="../../../java/lang/IllegalArgumentException.html">IllegalArgumentException</A></CODE> - if the gray value is out of range<DT><B>See Also: </B><DD><A HREF="../../../javax/microedition/lcdui/Graphics.html#getGrayScale()"><CODE>getGrayScale()</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="getFont()"><!-- --></A><H3>
getFont</H3>
<PRE>
public <A HREF="../../../javax/microedition/lcdui/Font.html">Font</A> <B>getFont</B>()</PRE>
<DL>
<DD>Gets the current font.<DD><DL>
<DT><B>Returns:</B><DD>current font<DT><B>See Also: </B><DD><A HREF="../../../javax/microedition/lcdui/Font.html"><CODE>Font</CODE></A>, 
<A HREF="../../../javax/microedition/lcdui/Graphics.html#setFont(javax.microedition.lcdui.Font)"><CODE>setFont(javax.microedition.lcdui.Font)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="setStrokeStyle(int)"><!-- --></A><H3>
setStrokeStyle</H3>
<PRE>
public void <B>setStrokeStyle</B>(int&nbsp;style)</PRE>
<DL>
<DD>Sets the stroke style used for drawing lines, arcs, rectangles, and 
 rounded rectangles.  This does not affect fill, text, and image 
 operations.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>style</CODE> - can be <code>SOLID</code> or <code>DOTTED</code><DT><B>Throws:</B><DD><CODE><A HREF="../../../java/lang/IllegalArgumentException.html">IllegalArgumentException</A></CODE> - if the <code>style</code> is illegal<DT><B>See Also: </B><DD><A HREF="../../../javax/microedition/lcdui/Graphics.html#getStrokeStyle()"><CODE>getStrokeStyle()</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="getStrokeStyle()"><!-- --></A><H3>
getStrokeStyle</H3>
<PRE>
public int <B>getStrokeStyle</B>()</PRE>
<DL>
<DD>Gets the stroke style used for drawing operations.<DD><DL>
<DT><B>Returns:</B><DD>stroke style, <code>SOLID</code> or <code>DOTTED</code><DT><B>See Also: </B><DD><A HREF="../../../javax/microedition/lcdui/Graphics.html#setStrokeStyle(int)"><CODE>setStrokeStyle(int)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="setFont(javax.microedition.lcdui.Font)"><!-- --></A><H3>
setFont</H3>
<PRE>
public void <B>setFont</B>(<A HREF="../../../javax/microedition/lcdui/Font.html">Font</A>&nbsp;font)</PRE>
<DL>
<DD>Sets the font for all subsequent text rendering operations.  If font is 
 <code>null</code>, it is equivalent to
 <code>setFont(Font.getDefaultFont())</code>.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>font</CODE> - the specified font<DT><B>See Also: </B><DD><A HREF="../../../javax/microedition/lcdui/Font.html"><CODE>Font</CODE></A>, 
<A HREF="../../../javax/microedition/lcdui/Graphics.html#getFont()"><CODE>getFont()</CODE></A>, 
<A HREF="../../../javax/microedition/lcdui/Graphics.html#drawString(java.lang.String, int, int, int)"><CODE>drawString(java.lang.String, int, int, int)</CODE></A>, 
<A HREF="../../../javax/microedition/lcdui/Graphics.html#drawChars(char[], int, int, int, int, int)"><CODE>drawChars(char[], int, int, int, int, int)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="getClipX()"><!-- --></A><H3>
getClipX</H3>
<PRE>
public int <B>getClipX</B>()</PRE>
<DL>
<DD>Gets the X offset of the current clipping area, relative
 to the coordinate system origin of this graphics context.
 Separating the <code>getClip</code> operation into two methods returning
 integers is more performance and memory efficient than one
 <code>getClip()</code> call returning an object.<DD><DL>
<DT><B>Returns:</B><DD>X offset of the current clipping area<DT><B>See Also: </B><DD><A HREF="../../../javax/microedition/lcdui/Graphics.html#clipRect(int, int, int, int)"><CODE>clipRect(int, int, int, int)</CODE></A>, 
<A HREF="../../../javax/microedition/lcdui/Graphics.html#setClip(int, int, int, int)"><CODE>setClip(int, int, int, int)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="getClipY()"><!-- --></A><H3>
getClipY</H3>
<PRE>
public int <B>getClipY</B>()</PRE>
<DL>
<DD>Gets the Y offset of the current clipping area, relative
 to the coordinate system origin of this graphics context.
 Separating the <code>getClip</code> operation into two methods returning
 integers is more performance and memory efficient than one
 <code>getClip()</code> call returning an object.<DD><DL>
<DT><B>Returns:</B><DD>Y offset of the current clipping area<DT><B>See Also: </B><DD><A HREF="../../../javax/microedition/lcdui/Graphics.html#clipRect(int, int, int, int)"><CODE>clipRect(int, int, int, int)</CODE></A>, 
<A HREF="../../../javax/microedition/lcdui/Graphics.html#setClip(int, int, int, int)"><CODE>setClip(int, int, int, int)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="getClipWidth()"><!-- --></A><H3>
getClipWidth</H3>
<PRE>
public int <B>getClipWidth</B>()</PRE>
<DL>
<DD>Gets the width of the current clipping area.<DD><DL>
<DT><B>Returns:</B><DD>width of the current clipping area.<DT><B>See Also: </B><DD><A HREF="../../../javax/microedition/lcdui/Graphics.html#clipRect(int, int, int, int)"><CODE>clipRect(int, int, int, int)</CODE></A>, 
<A HREF="../../../javax/microedition/lcdui/Graphics.html#setClip(int, int, int, int)"><CODE>setClip(int, int, int, int)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="getClipHeight()"><!-- --></A><H3>
getClipHeight</H3>
<PRE>
public int <B>getClipHeight</B>()</PRE>
<DL>
<DD>Gets the height of the current clipping area.<DD><DL>
<DT><B>Returns:</B><DD>height of the current clipping area.<DT><B>See Also: </B><DD><A HREF="../../../javax/microedition/lcdui/Graphics.html#clipRect(int, int, int, int)"><CODE>clipRect(int, int, int, int)</CODE></A>, 
<A HREF="../../../javax/microedition/lcdui/Graphics.html#setClip(int, int, int, int)"><CODE>setClip(int, int, int, int)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="clipRect(int, int, int, int)"><!-- --></A><H3>
clipRect</H3>
<PRE>
public void <B>clipRect</B>(int&nbsp;x,
                     int&nbsp;y,
                     int&nbsp;width,
                     int&nbsp;height)</PRE>
<DL>
<DD>Intersects the current clip with the specified rectangle.
 The resulting clipping area is the intersection of the current
 clipping area and the specified rectangle.
 This method can only be used to make the current clip smaller.
 To set the current clip larger, use the <code>setClip</code> method.
 Rendering operations have no effect outside of the clipping area.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>x</CODE> - the x coordinate of the rectangle to intersect the clip with<DD><CODE>y</CODE> - the y coordinate of the rectangle to intersect the clip with<DD><CODE>width</CODE> - the width of the rectangle to intersect the clip with<DD><CODE>height</CODE> - the height of the rectangle to intersect the clip with<DT><B>See Also: </B><DD><A HREF="../../../javax/microedition/lcdui/Graphics.html#setClip(int, int, int, int)"><CODE>setClip(int, int, int, int)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="setClip(int, int, int, int)"><!-- --></A><H3>
setClip</H3>
<PRE>
public void <B>setClip</B>(int&nbsp;x,
                    int&nbsp;y,
                    int&nbsp;width,
                    int&nbsp;height)</PRE>
<DL>
<DD>Sets the current clip to the rectangle specified by the
 given coordinates.
 Rendering operations have no effect outside of the clipping area.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>x</CODE> - the x coordinate of the new clip rectangle<DD><CODE>y</CODE> - the y coordinate of the new clip rectangle<DD><CODE>width</CODE> - the width of the new clip rectangle<DD><CODE>height</CODE> - the height of the new clip rectangle<DT><B>See Also: </B><DD><A HREF="../../../javax/microedition/lcdui/Graphics.html#clipRect(int, int, int, int)"><CODE>clipRect(int, int, int, int)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="drawLine(int, int, int, int)"><!-- --></A><H3>
drawLine</H3>
<PRE>
public 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.<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="fillRect(int, int, int, int)"><!-- --></A><H3>
fillRect</H3>
<PRE>
public 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.<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="../../../javax/microedition/lcdui/Graphics.html#drawRect(int, int, int, int)"><CODE>drawRect(int, int, int, int)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="drawRect(int, int, int, int)"><!-- --></A><H3>
drawRect</H3>
<PRE>
public 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.