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"Bug" & usability fix, own collection.

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Color Pickers in Blender support precision editing with holding Shift key.
Unfortunately, on first click the picker cursor moves to the mouse position,
making the precision dragging quite useless.

Now, if you hold Shift, the picker editing will only apply the delta motion
of your mouse drags, making it much nicer for fine tuning of color grades
in Sequencer or Compositor.
This commit is contained in:
Ton Roosendaal
2013-04-27 12:54:45 +00:00
parent 4c2c24aac3
commit 8069d1ad1a
3 changed files with 95 additions and 33 deletions
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84
source/blender/editors/interface/interface_widgets.c
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@@ -1941,19 +1941,38 @@ void ui_hsvcircle_vals_from_pos(float *val_rad, float *val_dist, const rcti *rec
*val_rad = atan2f(m_delta[0], m_delta[1]) / (2.0f * (float)M_PI) + 0.5f;
}
/* cursor in hsv circle, in float units -1 to 1, to map on radius */
void ui_hsvcircle_pos_from_vals(uiBut *but, const rcti *rect, float *hsv, float *xpos, float *ypos)
{
/* duplication of code... well, simple is better now */
const float centx = BLI_rcti_cent_x_fl(rect);
const float centy = BLI_rcti_cent_y_fl(rect);
float radius = (float)min_ii(BLI_rcti_size_x(rect), BLI_rcti_size_y(rect)) / 2.0f;
float ang, radius_t;
ang = 2.0f * (float)M_PI * hsv[0] + 0.5f * (float)M_PI;
if (but->flag & UI_BUT_COLOR_CUBIC)
radius_t = (1.0f - powf(1.0f - hsv[1], 3.0f));
else
radius_t = hsv[1];
radius = CLAMPIS(radius_t, 0.0f, 1.0f) * radius;
*xpos = centx + cosf(-ang) * radius;
*ypos = centy + sinf(-ang) * radius;
}
static void ui_draw_but_HSVCIRCLE(uiBut *but, uiWidgetColors *wcol, const rcti *rect)
{
const int tot = 64;
const float radstep = 2.0f * (float)M_PI / (float)tot;
const float centx = BLI_rcti_cent_x_fl(rect);
const float centy = BLI_rcti_cent_y_fl(rect);
float radius = (float)min_ii(BLI_rcti_size_x(rect), BLI_rcti_size_y(rect)) / 2.0f;
/* gouraud triangle fan */
const float *hsv_ptr = ui_block_hsv_get(but->block);
float ang = 0.0f;
float cursor_radius;
float xpos, ypos, ang = 0.0f;
float rgb[3], hsvo[3], hsv[3], col[3], colcent[3];
int a;
int color_profile = but->block->color_profile;
@@ -2017,15 +2036,9 @@ static void ui_draw_but_HSVCIRCLE(uiBut *but, uiWidgetColors *wcol, const rcti *
glPopMatrix();
/* cursor */
ang = 2.0f * (float)M_PI * hsvo[0] + 0.5f * (float)M_PI;
ui_hsvcircle_pos_from_vals(but, rect, hsvo, &xpos, &ypos);
if (but->flag & UI_BUT_COLOR_CUBIC)
cursor_radius = (1.0f - powf(1.0f - hsvo[1], 3.0f));
else
cursor_radius = hsvo[1];
radius = CLAMPIS(cursor_radius, 0.0f, 1.0f) * radius;
ui_hsv_cursor(centx + cosf(-ang) * radius, centy + sinf(-ang) * radius);
ui_hsv_cursor(xpos, ypos);
}
/* ************ custom buttons, old stuff ************** */
@@ -2168,7 +2181,35 @@ void ui_draw_gradient(const rcti *rect, const float hsv[3], const int type, cons
}
void ui_hsvcube_pos_from_vals(uiBut *but, const rcti *rect, float *hsv, float *xp, float *yp)
{
float x, y;
switch ((int)but->a1) {
case UI_GRAD_SV:
x = hsv[2]; y = hsv[1]; break;
case UI_GRAD_HV:
x = hsv[0]; y = hsv[2]; break;
case UI_GRAD_HS:
x = hsv[0]; y = hsv[1]; break;
case UI_GRAD_H:
x = hsv[0]; y = 0.5; break;
case UI_GRAD_S:
x = hsv[1]; y = 0.5; break;
case UI_GRAD_V:
x = hsv[2]; y = 0.5; break;
case UI_GRAD_V_ALT:
x = 0.5f;
/* exception only for value strip - use the range set in but->min/max */
y = (hsv[2] - but->softmin ) / (but->softmax - but->softmin);
break;
}
/* cursor */
*xp = rect->xmin + x * BLI_rcti_size_x(rect);
*yp = rect->ymin + y * BLI_rcti_size_y(rect);
}
static void ui_draw_but_HSVCUBE(uiBut *but, const rcti *rect)
{
@@ -2191,25 +2232,8 @@ static void ui_draw_but_HSVCUBE(uiBut *but, const rcti *rect)
rgb_to_hsv_compat_v(rgb, hsv_n);
ui_draw_gradient(rect, hsv_n, but->a1, 1.0f);
switch ((int)but->a1) {
case UI_GRAD_SV:
x = hsv_n[2]; y = hsv_n[1]; break;
case UI_GRAD_HV:
x = hsv_n[0]; y = hsv_n[2]; break;
case UI_GRAD_HS:
x = hsv_n[0]; y = hsv_n[1]; break;
case UI_GRAD_H:
x = hsv_n[0]; y = 0.5; break;
case UI_GRAD_S:
x = hsv_n[1]; y = 0.5; break;
case UI_GRAD_V:
x = hsv_n[2]; y = 0.5; break;
}
/* cursor */
x = rect->xmin + x * BLI_rcti_size_x(rect);
y = rect->ymin + y * BLI_rcti_size_y(rect);
ui_hsvcube_pos_from_vals(but, rect, hsv_n, &x, &y);
CLAMP(x, rect->xmin + 3.0f, rect->xmax - 3.0f);
CLAMP(y, rect->ymin + 3.0f, rect->ymax - 3.0f);