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Fix up horizontal gradient code and its use

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Fix up the comments about the horizontal gradient code and use 8x1 texture
instead of 8x8.

Make sure the values we assign to the three-stop horizontal gradient
require the use of the three stop gradient, with the middle value not being
right between the side values.
This commit is contained in:
Marina Zhurakhinskaya 2009-06-25 14:32:00 -04:00
parent 5eaed34047
commit 6d002c893d
2 changed files with 15 additions and 13 deletions
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10
js/ui/overlay.js
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@ -77,9 +77,9 @@ const STATE_INACTIVE = false;
// The dash has a slightly transparent blue background with a gradient.
const DASH_LEFT_COLOR = new Clutter.Color();
DASH_LEFT_COLOR.from_pixel(0x324c6faa);
DASH_LEFT_COLOR.from_pixel(0x324c6fbb);
const DASH_MIDDLE_COLOR = new Clutter.Color();
DASH_MIDDLE_COLOR.from_pixel(0x324c6fbb);
DASH_MIDDLE_COLOR.from_pixel(0x324c6faa);
const DASH_RIGHT_COLOR = new Clutter.Color();
DASH_RIGHT_COLOR.from_pixel(0x324c6fcc);
@ -90,11 +90,11 @@ const DASH_BORDER_WIDTH = 2;
// The results and details panes have a somewhat transparent blue background with a gradient.
const PANE_LEFT_COLOR = new Clutter.Color();
PANE_LEFT_COLOR.from_pixel(0x324c6ff0);
PANE_LEFT_COLOR.from_pixel(0x324c6ff4);
const PANE_MIDDLE_COLOR = new Clutter.Color();
PANE_MIDDLE_COLOR.from_pixel(0x324c6ff4);
PANE_MIDDLE_COLOR.from_pixel(0x324c6ffa);
const PANE_RIGHT_COLOR = new Clutter.Color();
PANE_RIGHT_COLOR.from_pixel(0x324c6ff8);
PANE_RIGHT_COLOR.from_pixel(0x324c6ff4);
const SHADOW_COLOR = new Clutter.Color();
SHADOW_COLOR.from_pixel(0x00000033);

18
src/shell-global.c
View File

@ -935,10 +935,10 @@ shell_global_create_vertical_gradient (ClutterColor *top,
/**
* shell_global_create_horizontal_gradient:
* @left: the color at the top
* @right: the color at the bottom
* @left: the color on the left
* @right: the color on the right
*
* Creates a vertical gradient actor.
* Creates a horizontal gradient actor.
*
* Return value: (transfer none): a #ClutterCairoTexture actor with the
* gradient. The texture actor is floating, hence (transfer none).
@ -951,12 +951,14 @@ shell_global_create_horizontal_gradient (ClutterColor *left,
cairo_t *cr;
cairo_pattern_t *pattern;
/* Draw the gradient on an 8x8 pixel texture. Because the gradient is drawn
* from the uppermost to the lowermost row, after stretching 1/16 of the
* texture height has the top color and 1/16 has the bottom color. The 8
* pixel width is chosen for reasons related to graphics hardware internals.
/* Draw the gradient on an 8x1 pixel texture. Because the gradient is drawn
* from the left to the right column, after stretching 1/16 of the
* texture width has the left side color and 1/16 has the right side color.
* There is no reason to use the 8 pixel height that would be similar to the
* reason we are using the 8 pixel width for the vertical gradient, so we
* are just using the 1 pixel height instead.
*/
texture = CLUTTER_CAIRO_TEXTURE (clutter_cairo_texture_new (8, 8));
texture = CLUTTER_CAIRO_TEXTURE (clutter_cairo_texture_new (8, 1));
cr = clutter_cairo_texture_create (texture);
pattern = cairo_pattern_create_linear (0, 0, 8, 0);