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keep the anchor points as an array of GimpVector2 instead of plain

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2008-02-09  Michael Natterer  <mitch@gimp.org>

	* app/core/gimpcurve.[ch]: keep the anchor points as an array of
	GimpVector2 instead of plain doubles.

	* app/gegl/gimpcurvesconfig.c
	* app/widgets/gimpcurveview.c: changed accordingly.


svn path=/trunk/; revision=24842
This commit is contained in:
Michael Natterer
2008-02-09 17:40:57 +00:00
committed by Michael Natterer
parent 437becc44a
commit 797309b220
5 changed files with 61 additions and 52 deletions
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8
ChangeLog
View File

@ -1,3 +1,11 @@
2008-02-09 Michael Natterer <mitch@gimp.org>
* app/core/gimpcurve.[ch]: keep the anchor points as an array of
GimpVector2 instead of plain doubles.
* app/gegl/gimpcurvesconfig.c
* app/widgets/gimpcurveview.c: changed accordingly.
2008-02-09 Michael Natterer <mitch@gimp.org>
* app/widgets/gimpcurveview.c (gimp_curve_view_draw_point): cleanup.

72
app/core/gimpcurve.c
View File

@ -335,14 +335,14 @@ gimp_curve_reset (GimpCurve *curve,
for (i = 0; i < GIMP_CURVE_NUM_POINTS; i++)
{
curve->points[i][0] = -1.0;
curve->points[i][1] = -1.0;
curve->points[i].x = -1.0;
curve->points[i].y = -1.0;
}
curve->points[0][0] = 0.0;
curve->points[0][1] = 0.0;
curve->points[GIMP_CURVE_NUM_POINTS - 1][0] = 1.0;
curve->points[GIMP_CURVE_NUM_POINTS - 1][1] = 1.0;
curve->points[0].x = 0.0;
curve->points[0].y = 0.0;
curve->points[GIMP_CURVE_NUM_POINTS - 1].x = 1.0;
curve->points[GIMP_CURVE_NUM_POINTS - 1].y = 1.0;
g_object_freeze_notify (G_OBJECT (curve));
@ -380,8 +380,8 @@ gimp_curve_set_curve_type (GimpCurve *curve,
{
gint32 index = CLAMP0255 (i * 32);
curve->points[i * 2][0] = (gdouble) index / 255.0;
curve->points[i * 2][1] = curve->curve[index];
curve->points[i * 2].x = (gdouble) index / 255.0;
curve->points[i * 2].y = curve->curve[index];
}
g_object_notify (G_OBJECT (curve), "points");
@ -417,12 +417,12 @@ gimp_curve_get_closest_point (GimpCurve *curve,
for (i = 0; i < GIMP_CURVE_NUM_POINTS; i++)
{
if (curve->points[i][0] >= 0.0)
if (fabs (x - curve->points[i][0]) < distance)
{
distance = fabs (x - curve->points[i][0]);
closest_point = i;
}
if (curve->points[i].x >= 0.0 &&
fabs (x - curve->points[i].x) < distance)
{
distance = fabs (x - curve->points[i].x);
closest_point = i;
}
}
if (distance > MIN_DISTANCE)
@ -444,8 +444,8 @@ gimp_curve_set_point (GimpCurve *curve,
g_object_freeze_notify (G_OBJECT (curve));
curve->points[point][0] = x;
curve->points[point][1] = y;
curve->points[point].x = x;
curve->points[point].y = y;
g_object_notify (G_OBJECT (curve), "points");
@ -466,7 +466,7 @@ gimp_curve_move_point (GimpCurve *curve,
g_object_freeze_notify (G_OBJECT (curve));
curve->points[point][1] = y;
curve->points[point].y = y;
g_object_notify (G_OBJECT (curve), "points");
@ -557,17 +557,17 @@ gimp_curve_calculate (GimpCurve *curve)
/* cycle through the curves */
num_pts = 0;
for (i = 0; i < GIMP_CURVE_NUM_POINTS; i++)
if (curve->points[i][0] >= 0.0)
if (curve->points[i].x >= 0.0)
points[num_pts++] = i;
/* Initialize boundary curve points */
if (num_pts != 0)
{
for (i = 0; i < (gint) (curve->points[points[0]][0] * 255.999); i++)
curve->curve[i] = curve->points[points[0]][1];
for (i = 0; i < (gint) (curve->points[points[0]].x * 255.999); i++)
curve->curve[i] = curve->points[points[0]].y;
for (i = (gint) (curve->points[points[num_pts - 1]][0] * 255.999); i < 256; i++)
curve->curve[i] = curve->points[points[num_pts - 1]][1];
for (i = (gint) (curve->points[points[num_pts - 1]].x * 255.999); i < 256; i++)
curve->curve[i] = curve->points[points[num_pts - 1]].y;
}
for (i = 0; i < num_pts - 1; i++)
@ -583,8 +583,8 @@ gimp_curve_calculate (GimpCurve *curve)
/* ensure that the control points are used exactly */
for (i = 0; i < num_pts; i++)
{
gdouble x = curve->points[points[i]][0];
gdouble y = curve->points[points[i]][1];
gdouble x = curve->points[points[i]].x;
gdouble y = curve->points[points[i]].y;
curve->curve[(gint) (x * 255.999)] = y;
}
@ -621,10 +621,10 @@ gimp_curve_plot (GimpCurve *curve,
gdouble slope;
/* the outer control points for the bezier curve. */
x0 = curve->points[p2][0];
y0 = curve->points[p2][1];
x3 = curve->points[p3][0];
y3 = curve->points[p3][1];
x0 = curve->points[p2].x;
y0 = curve->points[p2].y;
x3 = curve->points[p3].x;
y3 = curve->points[p3].y;
/*
* the x values of the inner control points are fixed at
@ -655,8 +655,8 @@ gimp_curve_plot (GimpCurve *curve,
* the control handle of the right tangent, to ensure that the curve
* does not have an inflection point.
*/
slope = (curve->points[p4][1] - y0) /
(curve->points[p4][0] - x0);
slope = (curve->points[p4].y - y0) /
(curve->points[p4].x - x0);
y2 = y3 - slope * dx / 3.0;
y1 = y0 + (y2 - y0) / 2.0;
@ -664,8 +664,8 @@ gimp_curve_plot (GimpCurve *curve,
else if (p1 != p2 && p3 == p4)
{
/* see previous case */
slope = (y3 - curve->points[p1][1]) /
(x3 - curve->points[p1][0]);
slope = (y3 - curve->points[p1].y) /
(x3 - curve->points[p1].x);
y1 = y0 + slope * dx / 3.0;
y2 = y3 + (y1 - y3) / 2.0;
@ -676,13 +676,13 @@ gimp_curve_plot (GimpCurve *curve,
* parallel to the line between the opposite endpoint and the adjacent
* neighbor.
*/
slope = (y3 - curve->points[p1][1]) /
(x3 - curve->points[p1][0]);
slope = (y3 - curve->points[p1].y) /
(x3 - curve->points[p1].x);
y1 = y0 + slope * dx / 3.0;
slope = (curve->points[p4][1] - y0) /
(curve->points[p4][0] - x0);
slope = (curve->points[p4].y - y0) /
(curve->points[p4].x - x0);
y2 = y3 - slope * dx / 3.0;
}

3
app/core/gimpcurve.h
View File

@ -21,6 +21,7 @@
#include "gimpdata.h"
#include "libgimpmath/gimpvector.h"
#define GIMP_CURVE_NUM_POINTS 17 /* TODO: get rid of this limit */
@ -42,7 +43,7 @@ struct _GimpCurve
GimpCurveType curve_type;
gdouble points[GIMP_CURVE_NUM_POINTS][2];
GimpVector2 points[GIMP_CURVE_NUM_POINTS];
gdouble curve[256];
};

8
app/gegl/gimpcurvesconfig.c
View File

@ -411,15 +411,15 @@ gimp_curves_config_save_cruft (GimpCurvesConfig *config,
{
gint32 index = CLAMP0255 (j * 32);
curve->points[j * 2][0] = (gdouble) index / 255.0;
curve->points[j * 2][1] = curve->curve[index];
curve->points[j * 2].x = (gdouble) index / 255.0;
curve->points[j * 2].y = curve->curve[index];
}
}
for (j = 0; j < GIMP_CURVE_NUM_POINTS; j++)
fprintf (file, "%d %d ",
(gint) (curve->points[j][0] * 255.999),
(gint) (curve->points[j][1] * 255.999));
(gint) (curve->points[j].x * 255.999),
(gint) (curve->points[j].y * 255.999));
fprintf (file, "\n");
}

22
app/widgets/gimpcurveview.c
View File

@ -315,8 +315,8 @@ gimp_curve_view_draw_point (GimpCurveView *view,
{
gdouble x, y;
x = view->curve->points[i][0];
y = 1.0 - view->curve->points[i][1];
x = view->curve->points[i].x;
y = 1.0 - view->curve->points[i].y;
if (x < 0.0)
return;
@ -553,17 +553,17 @@ gimp_curve_view_button_press (GtkWidget *widget,
/* determine the leftmost and rightmost points */
view->leftmost = -1.0;
for (i = closest_point - 1; i >= 0; i--)
if (curve->points[i][0] >= 0.0)
if (curve->points[i].x >= 0.0)
{
view->leftmost = curve->points[i][0];
view->leftmost = curve->points[i].x;
break;
}
view->rightmost = 2.0;
for (i = closest_point + 1; i < GIMP_CURVE_NUM_POINTS; i++)
if (curve->points[i][0] >= 0.0)
if (curve->points[i].x >= 0.0)
{
view->rightmost = curve->points[i][0];
view->rightmost = curve->points[i].x;
break;
}
@ -635,7 +635,7 @@ gimp_curve_view_motion_notify (GtkWidget *widget,
case GIMP_CURVE_SMOOTH:
if (! view->grabbed) /* If no point is grabbed... */
{
if (curve->points[closest_point][0] >= 0.0)
if (curve->points[closest_point].x >= 0.0)
new_cursor = GDK_FLEUR;
else
new_cursor = GDK_TCROSS;
@ -651,7 +651,7 @@ gimp_curve_view_motion_notify (GtkWidget *widget,
if (x > view->leftmost && x < view->rightmost)
{
closest_point = ((gint) (x * 255.999) + 8) / 16;
if (curve->points[closest_point][0] < 0.0)
if (curve->points[closest_point].x < 0.0)
gimp_curve_view_set_selected (view, closest_point);
gimp_curve_set_point (curve, view->selected, x, 1.0 - y);
@ -737,7 +737,7 @@ gimp_curve_view_key_press (GtkWidget *widget,
GimpCurveView *view = GIMP_CURVE_VIEW (widget);
GimpCurve *curve = view->curve;
gint i = view->selected;
gdouble y = curve->points[i][1];
gdouble y = curve->points[i].y;
gboolean retval = FALSE;
if (view->grabbed || ! curve ||
@ -749,7 +749,7 @@ gimp_curve_view_key_press (GtkWidget *widget,
case GDK_Left:
for (i = i - 1; i >= 0 && ! retval; i--)
{
if (curve->points[i][0] >= 0.0)
if (curve->points[i].x >= 0.0)
{
gimp_curve_view_set_selected (view, i);
@ -761,7 +761,7 @@ gimp_curve_view_key_press (GtkWidget *widget,
case GDK_Right:
for (i = i + 1; i < GIMP_CURVE_NUM_POINTS && ! retval; i++)
{
if (curve->points[i][0] >= 0.0)
if (curve->points[i].x >= 0.0)
{
gimp_curve_view_set_selected (view, i);