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Thu May 20 16:38:05 BST 1999 Austin Donnelly <austin@gimp.org 

* app/curves.c: colour in the previously greyscale bars to the
	    left and below the curve itself.  Might want to take alpha and
	    value into account, but currently we don't.  Incidentally
	    fixes a few redraw problems I found along the way.  Done in
	    about an hour and a half, to show Wavey Dave what's possible :)
This commit is contained in:
Austin Donnelly 1999-05-20 15:43:56 +00:00
parent 47b4c72356
commit 8218179aa6
5 changed files with 328 additions and 64 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
ChangeLog
View File

@ -1,3 +1,11 @@
Thu May 20 16:38:05 BST 1999 Austin Donnelly <austin@gimp.org
* app/curves.c: colour in the previously greyscale bars to the
left and below the curve itself. Might want to take alpha and
value into account, but currently we don't. Incidentally
fixes a few redraw problems I found along the way. Done in
about an hour and a half, to show Wavey Dave what's possible :)
Wed May 19 19:48:10 1999 ape@lrdpf.spacetec.no (Asbjorn Pettersen)
* modules/colorsel_gtk.c :

96
app/base/curves.c
View File

@ -42,6 +42,8 @@
#define DRAW 0x10
#define ALL 0xFF
/* NB: take care when changing these values: make sure the curve[] array in
* curves.h is large enough. */
#define GRAPH_WIDTH 256
#define GRAPH_HEIGHT 256
#define XRANGE_WIDTH 256
@ -592,7 +594,7 @@ curves_new_dialog ()
gtk_table_attach (GTK_TABLE (table), frame, 0, 1, 0, 1,
GTK_EXPAND, GTK_EXPAND, 0, 0);
cd->yrange = gtk_preview_new (GTK_PREVIEW_GRAYSCALE);
cd->yrange = gtk_preview_new (GTK_PREVIEW_COLOR);
gtk_preview_size (GTK_PREVIEW (cd->yrange), YRANGE_WIDTH, YRANGE_HEIGHT);
gtk_widget_set_events (cd->yrange, RANGE_MASK);
gtk_signal_connect (GTK_OBJECT (cd->yrange), "event",
@ -627,7 +629,7 @@ curves_new_dialog ()
gtk_table_attach (GTK_TABLE (table), frame, 1, 2, 1, 2,
GTK_EXPAND, GTK_EXPAND, 0, 0);
cd->xrange = gtk_preview_new (GTK_PREVIEW_GRAYSCALE);
cd->xrange = gtk_preview_new (GTK_PREVIEW_COLOR);
gtk_preview_size (GTK_PREVIEW (cd->xrange), XRANGE_WIDTH, XRANGE_HEIGHT);
gtk_widget_set_events (cd->xrange, RANGE_MASK);
gtk_signal_connect (GTK_OBJECT (cd->xrange), "event",
@ -678,6 +680,7 @@ curves_new_dialog ()
return cd;
}
/* TODO: preview alpha channel stuff correctly. -- austin, 20/May/99 */
static void
curves_update (CurvesDialog *cd,
int update)
@ -687,10 +690,47 @@ curves_update (CurvesDialog *cd,
if (update & XRANGE_TOP)
{
for (i = 0; i < XRANGE_HEIGHT / 2; i++)
gtk_preview_draw_row (GTK_PREVIEW (cd->xrange),
cd->curve[cd->channel],
0, i, XRANGE_WIDTH);
unsigned char buf[XRANGE_WIDTH * 3];
switch (cd->channel) {
case HISTOGRAM_VALUE:
case HISTOGRAM_ALPHA:
for (i = 0; i < XRANGE_HEIGHT / 2; i++)
{
for (j = 0; j < XRANGE_WIDTH ; j++)
{
buf[j*3+0] = cd->curve[cd->channel][j];
buf[j*3+1] = cd->curve[cd->channel][j];
buf[j*3+2] = cd->curve[cd->channel][j];
}
gtk_preview_draw_row (GTK_PREVIEW (cd->xrange),
buf, 0, i, XRANGE_WIDTH);
}
break;
case HISTOGRAM_RED:
case HISTOGRAM_GREEN:
case HISTOGRAM_BLUE:
{
for (i = 0; i < XRANGE_HEIGHT / 2; i++)
{
for (j = 0; j < XRANGE_WIDTH; j++)
{
buf[j*3+0] = cd->curve[HISTOGRAM_RED][j];
buf[j*3+1] = cd->curve[HISTOGRAM_GREEN][j];
buf[j*3+2] = cd->curve[HISTOGRAM_BLUE][j];
}
gtk_preview_draw_row (GTK_PREVIEW (cd->xrange),
buf, 0, i, XRANGE_WIDTH);
}
break;
}
default:
g_warning ("unknown channel type %d, can't happen!?!?",
cd->channel);
break;
} /* end switch */
if (update & DRAW)
{
@ -703,10 +743,14 @@ curves_update (CurvesDialog *cd,
}
if (update & XRANGE_BOTTOM)
{
unsigned char buf[XRANGE_WIDTH];
unsigned char buf[XRANGE_WIDTH * 3];
for (i = 0; i < XRANGE_WIDTH; i++)
buf[i] = i;
{
buf[i*3+0] = i;
buf[i*3+1] = i;
buf[i*3+2] = i;
}
for (i = XRANGE_HEIGHT / 2; i < XRANGE_HEIGHT; i++)
gtk_preview_draw_row (GTK_PREVIEW (cd->xrange), buf, 0, i, XRANGE_WIDTH);
@ -722,12 +766,32 @@ curves_update (CurvesDialog *cd,
}
if (update & YRANGE)
{
unsigned char buf[YRANGE_WIDTH];
unsigned char buf[YRANGE_WIDTH * 3];
unsigned char pix[3];
for (i = 0; i < YRANGE_HEIGHT; i++)
{
for (j = 0; j < YRANGE_WIDTH; j++)
buf[j] = (255 - i);
switch (cd->channel) {
case HISTOGRAM_VALUE:
case HISTOGRAM_ALPHA:
pix[0] = pix[1] = pix[2] = (255 - i);
break;
case HISTOGRAM_RED:
case HISTOGRAM_GREEN:
case HISTOGRAM_BLUE:
pix[0] = pix[1] = pix[2] = 0;
pix[cd->channel - 1] = (255 - i);
break;
default:
g_warning ("unknown channel type %d, can't happen!?!?",
cd->channel);
break;
}
for (j = 0; j < YRANGE_WIDTH * 3; j++)
buf[j] = pix[j%3];
gtk_preview_draw_row (GTK_PREVIEW (cd->yrange), buf, 0, i, YRANGE_WIDTH);
@ -945,7 +1009,7 @@ curves_value_callback (GtkWidget *w,
if (cd->channel != HISTOGRAM_VALUE)
{
cd->channel = HISTOGRAM_VALUE;
curves_update (cd, GRAPH | DRAW);
curves_update (cd, XRANGE_TOP | YRANGE | GRAPH | DRAW);
}
}
@ -960,7 +1024,7 @@ curves_red_callback (GtkWidget *w,
if (cd->channel != HISTOGRAM_RED)
{
cd->channel = HISTOGRAM_RED;
curves_update (cd, GRAPH | DRAW);
curves_update (cd, XRANGE_TOP | YRANGE | GRAPH | DRAW);
}
}
@ -975,7 +1039,7 @@ curves_green_callback (GtkWidget *w,
if (cd->channel != HISTOGRAM_GREEN)
{
cd->channel = HISTOGRAM_GREEN;
curves_update (cd, GRAPH | DRAW);
curves_update (cd, XRANGE_TOP | YRANGE | GRAPH | DRAW);
}
}
@ -990,7 +1054,7 @@ curves_blue_callback (GtkWidget *w,
if (cd->channel != HISTOGRAM_BLUE)
{
cd->channel = HISTOGRAM_BLUE;
curves_update (cd, GRAPH | DRAW);
curves_update (cd, XRANGE_TOP | YRANGE | GRAPH | DRAW);
}
}
@ -1005,7 +1069,7 @@ curves_alpha_callback (GtkWidget *w,
if (cd->channel != HISTOGRAM_ALPHA)
{
cd->channel = HISTOGRAM_ALPHA;
curves_update (cd, GRAPH | DRAW);
curves_update (cd, XRANGE_TOP | YRANGE | GRAPH | DRAW);
}
}

96
app/curves.c
View File

@ -42,6 +42,8 @@
#define DRAW 0x10
#define ALL 0xFF
/* NB: take care when changing these values: make sure the curve[] array in
* curves.h is large enough. */
#define GRAPH_WIDTH 256
#define GRAPH_HEIGHT 256
#define XRANGE_WIDTH 256
@ -592,7 +594,7 @@ curves_new_dialog ()
gtk_table_attach (GTK_TABLE (table), frame, 0, 1, 0, 1,
GTK_EXPAND, GTK_EXPAND, 0, 0);
cd->yrange = gtk_preview_new (GTK_PREVIEW_GRAYSCALE);
cd->yrange = gtk_preview_new (GTK_PREVIEW_COLOR);
gtk_preview_size (GTK_PREVIEW (cd->yrange), YRANGE_WIDTH, YRANGE_HEIGHT);
gtk_widget_set_events (cd->yrange, RANGE_MASK);
gtk_signal_connect (GTK_OBJECT (cd->yrange), "event",
@ -627,7 +629,7 @@ curves_new_dialog ()
gtk_table_attach (GTK_TABLE (table), frame, 1, 2, 1, 2,
GTK_EXPAND, GTK_EXPAND, 0, 0);
cd->xrange = gtk_preview_new (GTK_PREVIEW_GRAYSCALE);
cd->xrange = gtk_preview_new (GTK_PREVIEW_COLOR);
gtk_preview_size (GTK_PREVIEW (cd->xrange), XRANGE_WIDTH, XRANGE_HEIGHT);
gtk_widget_set_events (cd->xrange, RANGE_MASK);
gtk_signal_connect (GTK_OBJECT (cd->xrange), "event",
@ -678,6 +680,7 @@ curves_new_dialog ()
return cd;
}
/* TODO: preview alpha channel stuff correctly. -- austin, 20/May/99 */
static void
curves_update (CurvesDialog *cd,
int update)
@ -687,10 +690,47 @@ curves_update (CurvesDialog *cd,
if (update & XRANGE_TOP)
{
for (i = 0; i < XRANGE_HEIGHT / 2; i++)
gtk_preview_draw_row (GTK_PREVIEW (cd->xrange),
cd->curve[cd->channel],
0, i, XRANGE_WIDTH);
unsigned char buf[XRANGE_WIDTH * 3];
switch (cd->channel) {
case HISTOGRAM_VALUE:
case HISTOGRAM_ALPHA:
for (i = 0; i < XRANGE_HEIGHT / 2; i++)
{
for (j = 0; j < XRANGE_WIDTH ; j++)
{
buf[j*3+0] = cd->curve[cd->channel][j];
buf[j*3+1] = cd->curve[cd->channel][j];
buf[j*3+2] = cd->curve[cd->channel][j];
}
gtk_preview_draw_row (GTK_PREVIEW (cd->xrange),
buf, 0, i, XRANGE_WIDTH);
}
break;
case HISTOGRAM_RED:
case HISTOGRAM_GREEN:
case HISTOGRAM_BLUE:
{
for (i = 0; i < XRANGE_HEIGHT / 2; i++)
{
for (j = 0; j < XRANGE_WIDTH; j++)
{
buf[j*3+0] = cd->curve[HISTOGRAM_RED][j];
buf[j*3+1] = cd->curve[HISTOGRAM_GREEN][j];
buf[j*3+2] = cd->curve[HISTOGRAM_BLUE][j];
}
gtk_preview_draw_row (GTK_PREVIEW (cd->xrange),
buf, 0, i, XRANGE_WIDTH);
}
break;
}
default:
g_warning ("unknown channel type %d, can't happen!?!?",
cd->channel);
break;
} /* end switch */
if (update & DRAW)
{
@ -703,10 +743,14 @@ curves_update (CurvesDialog *cd,
}
if (update & XRANGE_BOTTOM)
{
unsigned char buf[XRANGE_WIDTH];
unsigned char buf[XRANGE_WIDTH * 3];
for (i = 0; i < XRANGE_WIDTH; i++)
buf[i] = i;
{
buf[i*3+0] = i;
buf[i*3+1] = i;
buf[i*3+2] = i;
}
for (i = XRANGE_HEIGHT / 2; i < XRANGE_HEIGHT; i++)
gtk_preview_draw_row (GTK_PREVIEW (cd->xrange), buf, 0, i, XRANGE_WIDTH);
@ -722,12 +766,32 @@ curves_update (CurvesDialog *cd,
}
if (update & YRANGE)
{
unsigned char buf[YRANGE_WIDTH];
unsigned char buf[YRANGE_WIDTH * 3];
unsigned char pix[3];
for (i = 0; i < YRANGE_HEIGHT; i++)
{
for (j = 0; j < YRANGE_WIDTH; j++)
buf[j] = (255 - i);
switch (cd->channel) {
case HISTOGRAM_VALUE:
case HISTOGRAM_ALPHA:
pix[0] = pix[1] = pix[2] = (255 - i);
break;
case HISTOGRAM_RED:
case HISTOGRAM_GREEN:
case HISTOGRAM_BLUE:
pix[0] = pix[1] = pix[2] = 0;
pix[cd->channel - 1] = (255 - i);
break;
default:
g_warning ("unknown channel type %d, can't happen!?!?",
cd->channel);
break;
}
for (j = 0; j < YRANGE_WIDTH * 3; j++)
buf[j] = pix[j%3];
gtk_preview_draw_row (GTK_PREVIEW (cd->yrange), buf, 0, i, YRANGE_WIDTH);
@ -945,7 +1009,7 @@ curves_value_callback (GtkWidget *w,
if (cd->channel != HISTOGRAM_VALUE)
{
cd->channel = HISTOGRAM_VALUE;
curves_update (cd, GRAPH | DRAW);
curves_update (cd, XRANGE_TOP | YRANGE | GRAPH | DRAW);
}
}
@ -960,7 +1024,7 @@ curves_red_callback (GtkWidget *w,
if (cd->channel != HISTOGRAM_RED)
{
cd->channel = HISTOGRAM_RED;
curves_update (cd, GRAPH | DRAW);
curves_update (cd, XRANGE_TOP | YRANGE | GRAPH | DRAW);
}
}
@ -975,7 +1039,7 @@ curves_green_callback (GtkWidget *w,
if (cd->channel != HISTOGRAM_GREEN)
{
cd->channel = HISTOGRAM_GREEN;
curves_update (cd, GRAPH | DRAW);
curves_update (cd, XRANGE_TOP | YRANGE | GRAPH | DRAW);
}
}
@ -990,7 +1054,7 @@ curves_blue_callback (GtkWidget *w,
if (cd->channel != HISTOGRAM_BLUE)
{
cd->channel = HISTOGRAM_BLUE;
curves_update (cd, GRAPH | DRAW);
curves_update (cd, XRANGE_TOP | YRANGE | GRAPH | DRAW);
}
}
@ -1005,7 +1069,7 @@ curves_alpha_callback (GtkWidget *w,
if (cd->channel != HISTOGRAM_ALPHA)
{
cd->channel = HISTOGRAM_ALPHA;
curves_update (cd, GRAPH | DRAW);
curves_update (cd, XRANGE_TOP | YRANGE | GRAPH | DRAW);
}
}

96
app/tools/curves.c
View File

@ -42,6 +42,8 @@
#define DRAW 0x10
#define ALL 0xFF
/* NB: take care when changing these values: make sure the curve[] array in
* curves.h is large enough. */
#define GRAPH_WIDTH 256
#define GRAPH_HEIGHT 256
#define XRANGE_WIDTH 256
@ -592,7 +594,7 @@ curves_new_dialog ()
gtk_table_attach (GTK_TABLE (table), frame, 0, 1, 0, 1,
GTK_EXPAND, GTK_EXPAND, 0, 0);
cd->yrange = gtk_preview_new (GTK_PREVIEW_GRAYSCALE);
cd->yrange = gtk_preview_new (GTK_PREVIEW_COLOR);
gtk_preview_size (GTK_PREVIEW (cd->yrange), YRANGE_WIDTH, YRANGE_HEIGHT);
gtk_widget_set_events (cd->yrange, RANGE_MASK);
gtk_signal_connect (GTK_OBJECT (cd->yrange), "event",
@ -627,7 +629,7 @@ curves_new_dialog ()
gtk_table_attach (GTK_TABLE (table), frame, 1, 2, 1, 2,
GTK_EXPAND, GTK_EXPAND, 0, 0);
cd->xrange = gtk_preview_new (GTK_PREVIEW_GRAYSCALE);
cd->xrange = gtk_preview_new (GTK_PREVIEW_COLOR);
gtk_preview_size (GTK_PREVIEW (cd->xrange), XRANGE_WIDTH, XRANGE_HEIGHT);
gtk_widget_set_events (cd->xrange, RANGE_MASK);
gtk_signal_connect (GTK_OBJECT (cd->xrange), "event",
@ -678,6 +680,7 @@ curves_new_dialog ()
return cd;
}
/* TODO: preview alpha channel stuff correctly. -- austin, 20/May/99 */
static void
curves_update (CurvesDialog *cd,
int update)
@ -687,10 +690,47 @@ curves_update (CurvesDialog *cd,
if (update & XRANGE_TOP)
{
for (i = 0; i < XRANGE_HEIGHT / 2; i++)
gtk_preview_draw_row (GTK_PREVIEW (cd->xrange),
cd->curve[cd->channel],
0, i, XRANGE_WIDTH);
unsigned char buf[XRANGE_WIDTH * 3];
switch (cd->channel) {
case HISTOGRAM_VALUE:
case HISTOGRAM_ALPHA:
for (i = 0; i < XRANGE_HEIGHT / 2; i++)
{
for (j = 0; j < XRANGE_WIDTH ; j++)
{
buf[j*3+0] = cd->curve[cd->channel][j];
buf[j*3+1] = cd->curve[cd->channel][j];
buf[j*3+2] = cd->curve[cd->channel][j];
}
gtk_preview_draw_row (GTK_PREVIEW (cd->xrange),
buf, 0, i, XRANGE_WIDTH);
}
break;
case HISTOGRAM_RED:
case HISTOGRAM_GREEN:
case HISTOGRAM_BLUE:
{
for (i = 0; i < XRANGE_HEIGHT / 2; i++)
{
for (j = 0; j < XRANGE_WIDTH; j++)
{
buf[j*3+0] = cd->curve[HISTOGRAM_RED][j];
buf[j*3+1] = cd->curve[HISTOGRAM_GREEN][j];
buf[j*3+2] = cd->curve[HISTOGRAM_BLUE][j];
}
gtk_preview_draw_row (GTK_PREVIEW (cd->xrange),
buf, 0, i, XRANGE_WIDTH);
}
break;
}
default:
g_warning ("unknown channel type %d, can't happen!?!?",
cd->channel);
break;
} /* end switch */
if (update & DRAW)
{
@ -703,10 +743,14 @@ curves_update (CurvesDialog *cd,
}
if (update & XRANGE_BOTTOM)
{
unsigned char buf[XRANGE_WIDTH];
unsigned char buf[XRANGE_WIDTH * 3];
for (i = 0; i < XRANGE_WIDTH; i++)
buf[i] = i;
{
buf[i*3+0] = i;
buf[i*3+1] = i;
buf[i*3+2] = i;
}
for (i = XRANGE_HEIGHT / 2; i < XRANGE_HEIGHT; i++)
gtk_preview_draw_row (GTK_PREVIEW (cd->xrange), buf, 0, i, XRANGE_WIDTH);
@ -722,12 +766,32 @@ curves_update (CurvesDialog *cd,
}
if (update & YRANGE)
{
unsigned char buf[YRANGE_WIDTH];
unsigned char buf[YRANGE_WIDTH * 3];
unsigned char pix[3];
for (i = 0; i < YRANGE_HEIGHT; i++)
{
for (j = 0; j < YRANGE_WIDTH; j++)
buf[j] = (255 - i);
switch (cd->channel) {
case HISTOGRAM_VALUE:
case HISTOGRAM_ALPHA:
pix[0] = pix[1] = pix[2] = (255 - i);
break;
case HISTOGRAM_RED:
case HISTOGRAM_GREEN:
case HISTOGRAM_BLUE:
pix[0] = pix[1] = pix[2] = 0;
pix[cd->channel - 1] = (255 - i);
break;
default:
g_warning ("unknown channel type %d, can't happen!?!?",
cd->channel);
break;
}
for (j = 0; j < YRANGE_WIDTH * 3; j++)
buf[j] = pix[j%3];
gtk_preview_draw_row (GTK_PREVIEW (cd->yrange), buf, 0, i, YRANGE_WIDTH);
@ -945,7 +1009,7 @@ curves_value_callback (GtkWidget *w,
if (cd->channel != HISTOGRAM_VALUE)
{
cd->channel = HISTOGRAM_VALUE;
curves_update (cd, GRAPH | DRAW);
curves_update (cd, XRANGE_TOP | YRANGE | GRAPH | DRAW);
}
}
@ -960,7 +1024,7 @@ curves_red_callback (GtkWidget *w,
if (cd->channel != HISTOGRAM_RED)
{
cd->channel = HISTOGRAM_RED;
curves_update (cd, GRAPH | DRAW);
curves_update (cd, XRANGE_TOP | YRANGE | GRAPH | DRAW);
}
}
@ -975,7 +1039,7 @@ curves_green_callback (GtkWidget *w,
if (cd->channel != HISTOGRAM_GREEN)
{
cd->channel = HISTOGRAM_GREEN;
curves_update (cd, GRAPH | DRAW);
curves_update (cd, XRANGE_TOP | YRANGE | GRAPH | DRAW);
}
}
@ -990,7 +1054,7 @@ curves_blue_callback (GtkWidget *w,
if (cd->channel != HISTOGRAM_BLUE)
{
cd->channel = HISTOGRAM_BLUE;
curves_update (cd, GRAPH | DRAW);
curves_update (cd, XRANGE_TOP | YRANGE | GRAPH | DRAW);
}
}
@ -1005,7 +1069,7 @@ curves_alpha_callback (GtkWidget *w,
if (cd->channel != HISTOGRAM_ALPHA)
{
cd->channel = HISTOGRAM_ALPHA;
curves_update (cd, GRAPH | DRAW);
curves_update (cd, XRANGE_TOP | YRANGE | GRAPH | DRAW);
}
}

96
app/tools/gimpcurvestool.c
View File

@ -42,6 +42,8 @@
#define DRAW 0x10
#define ALL 0xFF
/* NB: take care when changing these values: make sure the curve[] array in
* curves.h is large enough. */
#define GRAPH_WIDTH 256
#define GRAPH_HEIGHT 256
#define XRANGE_WIDTH 256
@ -592,7 +594,7 @@ curves_new_dialog ()
gtk_table_attach (GTK_TABLE (table), frame, 0, 1, 0, 1,
GTK_EXPAND, GTK_EXPAND, 0, 0);
cd->yrange = gtk_preview_new (GTK_PREVIEW_GRAYSCALE);
cd->yrange = gtk_preview_new (GTK_PREVIEW_COLOR);
gtk_preview_size (GTK_PREVIEW (cd->yrange), YRANGE_WIDTH, YRANGE_HEIGHT);
gtk_widget_set_events (cd->yrange, RANGE_MASK);
gtk_signal_connect (GTK_OBJECT (cd->yrange), "event",
@ -627,7 +629,7 @@ curves_new_dialog ()
gtk_table_attach (GTK_TABLE (table), frame, 1, 2, 1, 2,
GTK_EXPAND, GTK_EXPAND, 0, 0);
cd->xrange = gtk_preview_new (GTK_PREVIEW_GRAYSCALE);
cd->xrange = gtk_preview_new (GTK_PREVIEW_COLOR);
gtk_preview_size (GTK_PREVIEW (cd->xrange), XRANGE_WIDTH, XRANGE_HEIGHT);
gtk_widget_set_events (cd->xrange, RANGE_MASK);
gtk_signal_connect (GTK_OBJECT (cd->xrange), "event",
@ -678,6 +680,7 @@ curves_new_dialog ()
return cd;
}
/* TODO: preview alpha channel stuff correctly. -- austin, 20/May/99 */
static void
curves_update (CurvesDialog *cd,
int update)
@ -687,10 +690,47 @@ curves_update (CurvesDialog *cd,
if (update & XRANGE_TOP)
{
for (i = 0; i < XRANGE_HEIGHT / 2; i++)
gtk_preview_draw_row (GTK_PREVIEW (cd->xrange),
cd->curve[cd->channel],
0, i, XRANGE_WIDTH);
unsigned char buf[XRANGE_WIDTH * 3];
switch (cd->channel) {
case HISTOGRAM_VALUE:
case HISTOGRAM_ALPHA:
for (i = 0; i < XRANGE_HEIGHT / 2; i++)
{
for (j = 0; j < XRANGE_WIDTH ; j++)
{
buf[j*3+0] = cd->curve[cd->channel][j];
buf[j*3+1] = cd->curve[cd->channel][j];
buf[j*3+2] = cd->curve[cd->channel][j];
}
gtk_preview_draw_row (GTK_PREVIEW (cd->xrange),
buf, 0, i, XRANGE_WIDTH);
}
break;
case HISTOGRAM_RED:
case HISTOGRAM_GREEN:
case HISTOGRAM_BLUE:
{
for (i = 0; i < XRANGE_HEIGHT / 2; i++)
{
for (j = 0; j < XRANGE_WIDTH; j++)
{
buf[j*3+0] = cd->curve[HISTOGRAM_RED][j];
buf[j*3+1] = cd->curve[HISTOGRAM_GREEN][j];
buf[j*3+2] = cd->curve[HISTOGRAM_BLUE][j];
}
gtk_preview_draw_row (GTK_PREVIEW (cd->xrange),
buf, 0, i, XRANGE_WIDTH);
}
break;
}
default:
g_warning ("unknown channel type %d, can't happen!?!?",
cd->channel);
break;
} /* end switch */
if (update & DRAW)
{
@ -703,10 +743,14 @@ curves_update (CurvesDialog *cd,
}
if (update & XRANGE_BOTTOM)
{
unsigned char buf[XRANGE_WIDTH];
unsigned char buf[XRANGE_WIDTH * 3];
for (i = 0; i < XRANGE_WIDTH; i++)
buf[i] = i;
{
buf[i*3+0] = i;
buf[i*3+1] = i;
buf[i*3+2] = i;
}
for (i = XRANGE_HEIGHT / 2; i < XRANGE_HEIGHT; i++)
gtk_preview_draw_row (GTK_PREVIEW (cd->xrange), buf, 0, i, XRANGE_WIDTH);
@ -722,12 +766,32 @@ curves_update (CurvesDialog *cd,
}
if (update & YRANGE)
{
unsigned char buf[YRANGE_WIDTH];
unsigned char buf[YRANGE_WIDTH * 3];
unsigned char pix[3];
for (i = 0; i < YRANGE_HEIGHT; i++)
{
for (j = 0; j < YRANGE_WIDTH; j++)
buf[j] = (255 - i);
switch (cd->channel) {
case HISTOGRAM_VALUE:
case HISTOGRAM_ALPHA:
pix[0] = pix[1] = pix[2] = (255 - i);
break;
case HISTOGRAM_RED:
case HISTOGRAM_GREEN:
case HISTOGRAM_BLUE:
pix[0] = pix[1] = pix[2] = 0;
pix[cd->channel - 1] = (255 - i);
break;
default:
g_warning ("unknown channel type %d, can't happen!?!?",
cd->channel);
break;
}
for (j = 0; j < YRANGE_WIDTH * 3; j++)
buf[j] = pix[j%3];
gtk_preview_draw_row (GTK_PREVIEW (cd->yrange), buf, 0, i, YRANGE_WIDTH);
@ -945,7 +1009,7 @@ curves_value_callback (GtkWidget *w,
if (cd->channel != HISTOGRAM_VALUE)
{
cd->channel = HISTOGRAM_VALUE;
curves_update (cd, GRAPH | DRAW);
curves_update (cd, XRANGE_TOP | YRANGE | GRAPH | DRAW);
}
}
@ -960,7 +1024,7 @@ curves_red_callback (GtkWidget *w,
if (cd->channel != HISTOGRAM_RED)
{
cd->channel = HISTOGRAM_RED;
curves_update (cd, GRAPH | DRAW);
curves_update (cd, XRANGE_TOP | YRANGE | GRAPH | DRAW);
}
}
@ -975,7 +1039,7 @@ curves_green_callback (GtkWidget *w,
if (cd->channel != HISTOGRAM_GREEN)
{
cd->channel = HISTOGRAM_GREEN;
curves_update (cd, GRAPH | DRAW);
curves_update (cd, XRANGE_TOP | YRANGE | GRAPH | DRAW);
}
}
@ -990,7 +1054,7 @@ curves_blue_callback (GtkWidget *w,
if (cd->channel != HISTOGRAM_BLUE)
{
cd->channel = HISTOGRAM_BLUE;
curves_update (cd, GRAPH | DRAW);
curves_update (cd, XRANGE_TOP | YRANGE | GRAPH | DRAW);
}
}
@ -1005,7 +1069,7 @@ curves_alpha_callback (GtkWidget *w,
if (cd->channel != HISTOGRAM_ALPHA)
{
cd->channel = HISTOGRAM_ALPHA;
curves_update (cd, GRAPH | DRAW);
curves_update (cd, XRANGE_TOP | YRANGE | GRAPH | DRAW);
}
}