sub_arctic.output
Class stipple_text_renderer

java.lang.Object
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  +--sub_arctic.output.simple_text_renderer
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        +--sub_arctic.output.stipple_text_renderer

public class stipple_text_renderer

extends simple_text_renderer

This object can draw text as if through a stipple pattern. This is not cheap in the current implementation of AWT (1.02), but is sufficiently necessary in some cases to merit its use. It does this by drawing into an "extra" bitmap and then sub_sampling the drawn values. You can provide a "skip" value which is effectively how many pixels get skipped between each one that is drawn. If you make this value 0, you are getting the normal drawing (albeit a REALLY slow version). If you make this 1 (the most common value) you'll get a 50% filter.

Fields inherited from class sub_arctic.output.simple_text_renderer

_draw_color, _draw_font, _metrics

Constructor Summary

stipple_text_renderer(java.awt.Font in_font, java.awt.Color in_color, int skip)
Construct a new stipple text renderer given a font, a color, and skip value.

Method Summary

void	draw_text(drawable on_surface, int at_x, int at_y, java.lang.String txt) We override the actual text rendering to do our magic with the stippling.
void	handle_pixels(java.awt.Image img, int x, int y, int w, int h, drawable on_surface, int at_x, int at_y, int rgb_value) This is the code that grabs the pixels from the offscreen image.
void	handle_single_pixel(int at_x, int at_y, drawable on_surface, int x, int y, int pixel, int rgb_value) This is what we do for a single pixel in the result image.
void	set_skip(int s) Set the skip value.
int	skip() Return the skip value.

Methods inherited from class sub_arctic.output.simple_text_renderer

baseline, draw_color, draw_font, h, leading, set_draw_color, set_draw_font, w

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

stipple_text_renderer

public stipple_text_renderer(java.awt.Font in_font,
                             java.awt.Color in_color,
                             int skip)

Construct a new stipple text renderer given a font, a color, and skip value.

Method Detail

skip

public int skip()

Return the skip value.

set_skip

public void set_skip(int s)

Set the skip value. Note: Although this change affects the text_renderer immediately, the users of the text_renderer are not notified of the change and may continue to have cached images which were generated with the old skip value.

draw_text

public void draw_text(drawable on_surface,
                      int at_x,
                      int at_y,
                      java.lang.String txt)

We override the actual text rendering to do our magic with the stippling.

Parameters:

drawable - on_surface the drawing surface where we draw the result.

int - at_x x coordinate to draw at.

int - at_y y coordinate to draw at.

String - txt the text to draw.

Overrides:

draw_text in class simple_text_renderer

handle_single_pixel

public void handle_single_pixel(int at_x,
                                int at_y,
                                drawable on_surface,
                                int x,
                                int y,
                                int pixel,
                                int rgb_value)

This is what we do for a single pixel in the result image. This is stolen right out of the AWT docs.

handle_pixels

public void handle_pixels(java.awt.Image img,
                          int x,
                          int y,
                          int w,
                          int h,
                          drawable on_surface,
                          int at_x,
                          int at_y,
                          int rgb_value)

This is the code that grabs the pixels from the offscreen image. This is stolen right out of the AWT docs.