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parse "shade/foo/factor" as a color (colorize_pixbuf): remove the unused
2002-06-05 Havoc Pennington <hp@pobox.com> * src/theme.c (meta_color_spec_new_from_string): parse "shade/foo/factor" as a color (colorize_pixbuf): remove the unused hsv_to_rgb and vice-versa stuff, add the gtk_style_shade stuff. (meta_color_spec_render): render the shaded color spec * src/theme.h (struct _MetaColorSpec): add "shade" mode to MetaColorSpec.
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Havoc Pennington
Havoc Pennington
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11
ChangeLog
11
ChangeLog
@ -1,3 +1,14 @@
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2002-06-05 Havoc Pennington <hp@pobox.com>
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* src/theme.c (meta_color_spec_new_from_string): parse
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"shade/foo/factor" as a color
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(colorize_pixbuf): remove the unused hsv_to_rgb and vice-versa
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stuff, add the gtk_style_shade stuff.
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(meta_color_spec_render): render the shaded color spec
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* src/theme.h (struct _MetaColorSpec): add "shade" mode to
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MetaColorSpec.
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2002-06-04 Seth Nickell <snickell@stanford.edu>
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* src/metacity.desktop.in:
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443
src/theme.c
443
src/theme.c
@ -27,6 +27,7 @@
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#include <gtk/gtkwidget.h>
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#include <string.h>
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#include <stdlib.h>
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#include <math.h>
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#define GDK_COLOR_RGBA(color) \
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((guint32) (0xff | \
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@ -45,153 +46,15 @@
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#define CLAMP_UCHAR(v) ((guchar) (CLAMP (((int)v), (int)0, (int)255)))
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#define INTENSITY(r, g, b) ((r) * 0.30 + (g) * 0.59 + (b) * 0.11)
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/* Converts from HSV to RGB */
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static void
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hsv_to_rgb (gdouble *h,
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gdouble *s,
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gdouble *v)
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{
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gdouble hue, saturation, value;
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gdouble f, p, q, t;
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if (*s == 0.0)
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{
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*h = *v;
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*s = *v;
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*v = *v; /* heh */
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}
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else
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{
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hue = *h * 6.0;
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saturation = *s;
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value = *v;
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if (hue == 6.0)
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hue = 0.0;
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f = hue - (int) hue;
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p = value * (1.0 - saturation);
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q = value * (1.0 - saturation * f);
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t = value * (1.0 - saturation * (1.0 - f));
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switch ((int) hue)
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{
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case 0:
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*h = value;
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*s = t;
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*v = p;
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break;
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case 1:
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*h = q;
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*s = value;
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*v = p;
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break;
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case 2:
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*h = p;
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*s = value;
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*v = t;
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break;
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case 3:
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*h = p;
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*s = q;
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*v = value;
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break;
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case 4:
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*h = t;
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*s = p;
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*v = value;
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break;
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case 5:
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*h = value;
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*s = p;
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*v = q;
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break;
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default:
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g_assert_not_reached ();
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}
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}
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}
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/* Converts from RGB to HSV */
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static void
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rgb_to_hsv (gdouble *r,
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gdouble *g,
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gdouble *b)
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{
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gdouble red, green, blue;
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gdouble h, s, v;
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gdouble min, max;
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gdouble delta;
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red = *r;
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green = *g;
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blue = *b;
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h = 0.0;
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if (red > green)
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{
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if (red > blue)
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max = red;
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else
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max = blue;
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if (green < blue)
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min = green;
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else
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min = blue;
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}
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else
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{
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if (green > blue)
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max = green;
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else
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max = blue;
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if (red < blue)
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min = red;
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else
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min = blue;
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}
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v = max;
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if (max != 0.0)
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s = (max - min) / max;
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else
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s = 0.0;
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if (s == 0.0)
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h = 0.0;
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else
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{
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delta = max - min;
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if (red == max)
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h = (green - blue) / delta;
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else if (green == max)
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h = 2 + (blue - red) / delta;
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else if (blue == max)
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h = 4 + (red - green) / delta;
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h /= 6.0;
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if (h < 0.0)
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h += 1.0;
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else if (h > 1.0)
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h -= 1.0;
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}
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*r = h;
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*g = s;
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*b = v;
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}
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static void gtk_style_shade (GdkColor *a,
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GdkColor *b,
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gdouble k);
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static void rgb_to_hls (gdouble *r,
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gdouble *g,
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gdouble *b);
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static void hls_to_rgb (gdouble *h,
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gdouble *l,
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gdouble *s);
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static GdkPixbuf *
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colorize_pixbuf (GdkPixbuf *orig,
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@ -208,12 +71,6 @@ colorize_pixbuf (GdkPixbuf *orig,
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gboolean has_alpha;
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const guchar *src_pixels;
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guchar *dest_pixels;
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double dh, ds, dv;
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dh = new_color->red / 65535.0;
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ds = new_color->green / 65535.0;
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dv = new_color->blue / 65535.0;
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rgb_to_hsv (&dh, &ds, &dv);
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pixbuf = gdk_pixbuf_new (gdk_pixbuf_get_colorspace (orig), gdk_pixbuf_get_has_alpha (orig),
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gdk_pixbuf_get_bits_per_sample (orig),
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@ -241,13 +98,6 @@ colorize_pixbuf (GdkPixbuf *orig,
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intensity = INTENSITY (src[0], src[1], src[2]) / 255.0;
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#if 0
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/* black to new_color */
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dr = dh;
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dg = intensity;
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db = intensity;
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hsv_to_rgb (&dr, &dg, &db);
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#else
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if (intensity <= 0.5)
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{
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/* Go from black at intensity = 0.0 to new_color at intensity = 0.5 */
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@ -262,7 +112,6 @@ colorize_pixbuf (GdkPixbuf *orig,
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dg = (new_color->green + (65535 - new_color->green) * (intensity - 0.5) * 2.0) / 65535.0;
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db = (new_color->blue + (65535 - new_color->blue) * (intensity - 0.5) * 2.0) / 65535.0;
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}
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#endif
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dest[0] = CLAMP_UCHAR (255 * dr);
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dest[1] = CLAMP_UCHAR (255 * dg);
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@ -563,6 +412,10 @@ meta_frame_layout_calc_geometry (const MetaFrameLayout *layout,
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x = width - layout->right_titlebar_edge;
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/* gcc warnings */
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button_width = -1;
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button_height = -1;
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switch (layout->button_sizing)
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{
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case META_BUTTON_SIZING_ASPECT:
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@ -575,9 +428,6 @@ meta_frame_layout_calc_geometry (const MetaFrameLayout *layout,
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break;
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case META_BUTTON_SIZING_LAST:
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g_assert_not_reached ();
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/* gcc warnings */
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button_width = -1;
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button_height = -1;
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break;
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}
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@ -844,6 +694,10 @@ meta_color_spec_new (MetaColorSpecType type)
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case META_COLOR_SPEC_BLEND:
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size += sizeof (dummy.data.blend);
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break;
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case META_COLOR_SPEC_SHADE:
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size += sizeof (dummy.data.shade);
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break;
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}
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spec = g_malloc0 (size);
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@ -875,6 +729,12 @@ meta_color_spec_free (MetaColorSpec *spec)
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meta_color_spec_free (spec->data.blend.background);
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DEBUG_FILL_STRUCT (&spec->data.blend);
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break;
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case META_COLOR_SPEC_SHADE:
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if (spec->data.shade.base)
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meta_color_spec_free (spec->data.shade.base);
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DEBUG_FILL_STRUCT (&spec->data.shade);
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break;
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}
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g_free (spec);
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@ -1025,6 +885,64 @@ meta_color_spec_new_from_string (const char *str,
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spec->data.blend.background = bg;
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spec->data.blend.foreground = fg;
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}
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else if (str[0] == 's' && str[1] == 'h' && str[2] == 'a' && str[3] == 'd' &&
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str[4] == 'e' && str[5] == '/')
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{
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/* shade */
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char **split;
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double factor;
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char *end;
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MetaColorSpec *base;
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split = g_strsplit (str, "/", 3);
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if (split[0] == NULL || split[1] == NULL ||
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split[2] == NULL)
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{
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g_set_error (err, META_THEME_ERROR,
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META_THEME_ERROR_FAILED,
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_("Shade format is \"shade/base_color/factor\", \"%s\" does not fit the format"),
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str);
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g_strfreev (split);
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return NULL;
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}
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factor = g_ascii_strtod (split[2], &end);
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if (end == split[2])
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{
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g_set_error (err, META_THEME_ERROR,
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META_THEME_ERROR_FAILED,
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_("Could not parse shade factor \"%s\" in shaded color"),
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split[2]);
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g_strfreev (split);
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return NULL;
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}
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if (factor < (0.0 - 1e6))
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{
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g_set_error (err, META_THEME_ERROR,
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META_THEME_ERROR_FAILED,
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_("Shade factor \"%s\" in shaded color is negative"),
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split[2]);
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g_strfreev (split);
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return NULL;
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}
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base = NULL;
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base = meta_color_spec_new_from_string (split[1], err);
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if (base == NULL)
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{
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g_strfreev (split);
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return NULL;
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}
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g_strfreev (split);
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spec = meta_color_spec_new (META_COLOR_SPEC_SHADE);
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spec->data.shade.factor = factor;
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spec->data.shade.base = base;
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}
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else
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{
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spec = meta_color_spec_new (META_COLOR_SPEC_BASIC);
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@ -1117,6 +1035,18 @@ meta_color_spec_render (MetaColorSpec *spec,
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color_composite (&bg, &fg, spec->data.blend.alpha, color);
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}
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break;
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case META_COLOR_SPEC_SHADE:
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{
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GdkColor base;
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meta_color_spec_render (spec->data.shade.base, widget, &base);
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gtk_style_shade (&base, &base, spec->data.shade.factor);
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*color = base;
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}
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break;
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}
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}
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@ -5371,6 +5301,191 @@ meta_image_fill_type_to_string (MetaImageFillType fill_type)
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return "<unknown>";
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}
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/* gtkstyle.c cut-and-pastage */
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static void
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gtk_style_shade (GdkColor *a,
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GdkColor *b,
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gdouble k)
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{
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gdouble red;
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gdouble green;
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gdouble blue;
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red = (gdouble) a->red / 65535.0;
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green = (gdouble) a->green / 65535.0;
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blue = (gdouble) a->blue / 65535.0;
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rgb_to_hls (&red, &green, &blue);
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green *= k;
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if (green > 1.0)
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green = 1.0;
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else if (green < 0.0)
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green = 0.0;
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blue *= k;
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if (blue > 1.0)
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blue = 1.0;
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else if (blue < 0.0)
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blue = 0.0;
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hls_to_rgb (&red, &green, &blue);
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b->red = red * 65535.0;
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b->green = green * 65535.0;
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b->blue = blue * 65535.0;
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}
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static void
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rgb_to_hls (gdouble *r,
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gdouble *g,
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gdouble *b)
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{
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gdouble min;
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gdouble max;
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gdouble red;
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gdouble green;
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gdouble blue;
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gdouble h, l, s;
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gdouble delta;
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red = *r;
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green = *g;
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blue = *b;
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if (red > green)
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{
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if (red > blue)
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max = red;
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else
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max = blue;
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if (green < blue)
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min = green;
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else
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min = blue;
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}
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else
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{
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if (green > blue)
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max = green;
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else
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max = blue;
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if (red < blue)
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min = red;
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else
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min = blue;
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}
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l = (max + min) / 2;
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s = 0;
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h = 0;
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if (max != min)
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{
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if (l <= 0.5)
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s = (max - min) / (max + min);
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else
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s = (max - min) / (2 - max - min);
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delta = max -min;
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if (red == max)
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h = (green - blue) / delta;
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else if (green == max)
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h = 2 + (blue - red) / delta;
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else if (blue == max)
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h = 4 + (red - green) / delta;
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h *= 60;
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if (h < 0.0)
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h += 360;
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}
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*r = h;
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*g = l;
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*b = s;
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}
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static void
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hls_to_rgb (gdouble *h,
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gdouble *l,
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gdouble *s)
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{
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gdouble hue;
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gdouble lightness;
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gdouble saturation;
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gdouble m1, m2;
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gdouble r, g, b;
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lightness = *l;
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saturation = *s;
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if (lightness <= 0.5)
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m2 = lightness * (1 + saturation);
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else
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m2 = lightness + saturation - lightness * saturation;
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m1 = 2 * lightness - m2;
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if (saturation == 0)
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{
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*h = lightness;
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*l = lightness;
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*s = lightness;
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}
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else
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{
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hue = *h + 120;
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while (hue > 360)
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hue -= 360;
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while (hue < 0)
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hue += 360;
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if (hue < 60)
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r = m1 + (m2 - m1) * hue / 60;
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else if (hue < 180)
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r = m2;
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else if (hue < 240)
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r = m1 + (m2 - m1) * (240 - hue) / 60;
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else
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r = m1;
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hue = *h;
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while (hue > 360)
|
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hue -= 360;
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while (hue < 0)
|
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hue += 360;
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if (hue < 60)
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g = m1 + (m2 - m1) * hue / 60;
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else if (hue < 180)
|
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g = m2;
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else if (hue < 240)
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g = m1 + (m2 - m1) * (240 - hue) / 60;
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else
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g = m1;
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hue = *h - 120;
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while (hue > 360)
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hue -= 360;
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while (hue < 0)
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hue += 360;
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if (hue < 60)
|
||||
b = m1 + (m2 - m1) * hue / 60;
|
||||
else if (hue < 180)
|
||||
b = m2;
|
||||
else if (hue < 240)
|
||||
b = m1 + (m2 - m1) * (240 - hue) / 60;
|
||||
else
|
||||
b = m1;
|
||||
|
||||
*h = r;
|
||||
*l = g;
|
||||
*s = b;
|
||||
}
|
||||
}
|
||||
|
||||
#if 0
|
||||
/* These are some functions I'm saving to use in optimizing
|
||||
* MetaDrawOpList, namely to pre-composite pixbufs on client side
|
||||
|
||||
@ -143,7 +143,8 @@ typedef enum
|
||||
{
|
||||
META_COLOR_SPEC_BASIC,
|
||||
META_COLOR_SPEC_GTK,
|
||||
META_COLOR_SPEC_BLEND
|
||||
META_COLOR_SPEC_BLEND,
|
||||
META_COLOR_SPEC_SHADE
|
||||
} MetaColorSpecType;
|
||||
|
||||
typedef enum
|
||||
@ -176,6 +177,10 @@ struct _MetaColorSpec
|
||||
MetaColorSpec *background;
|
||||
double alpha;
|
||||
} blend;
|
||||
struct {
|
||||
MetaColorSpec *base;
|
||||
double factor;
|
||||
} shade;
|
||||
} data;
|
||||
};
|
||||
|
||||
|
||||
@ -167,8 +167,8 @@
|
||||
|
||||
<draw_ops name="title_gradient">
|
||||
<gradient type="diagonal" x="0" y="0" width="width-SpacerWidth" height="height">
|
||||
<color value="blend/gtk:bg[NORMAL]/gtk:bg[SELECTED]/0.6"/>
|
||||
<color value="gtk:bg[SELECTED]"/>
|
||||
<color value="shade/gtk:bg[SELECTED]/0.2"/>
|
||||
<color value="shade/gtk:bg[SELECTED]/1.5"/>
|
||||
</gradient>
|
||||
</draw_ops>
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user