static void
gimp_resolution_entry_update_unit (GimpResolutionEntry *gre,
GimpUnit unit)
{
GimpUnit old_unit;
gint digits;
gdouble factor;
old_unit = gre->unit;
gre->unit = unit;
digits = (gimp_unit_get_digits (GIMP_UNIT_INCH) -
gimp_unit_get_digits (unit));
gtk_spin_button_set_digits (GTK_SPIN_BUTTON (gre->x.spinbutton),
MAX (3 + digits, 3));
factor = gimp_unit_get_factor (old_unit) / gimp_unit_get_factor (unit);
gre->x.min_value *= factor;
gre->x.max_value *= factor;
gre->x.value *= factor;
gtk_adjustment_set_value (GTK_ADJUSTMENT (gre->x.adjustment),
gre->x.value);
gimp_resolution_entry_format_label (gre,
gre->width.label, gre->width.phy_size);
gimp_resolution_entry_format_label (gre,
gre->height.label, gre->height.phy_size);
g_signal_emit (gre, gimp_resolution_entry_signals[UNIT_CHANGED], 0);
}
static void
print_size_info_size_changed (GtkWidget *widget)
{
gdouble width;
gdouble height;
gdouble xres;
gdouble yres;
gdouble scale;
scale = gimp_unit_get_factor (gimp_size_entry_get_unit (info.size_entry));
width = gimp_size_entry_get_value (info.size_entry, WIDTH);
height = gimp_size_entry_get_value (info.size_entry, HEIGHT);
xres = scale * info.image_width / MAX (0.0001, width);
yres = scale * info.image_height / MAX (0.0001, height);
print_size_info_set_resolution (&info, xres, yres);
info.data->offset_x = gimp_size_entry_get_refval (info.size_entry, LEFT);
info.data->offset_y = gimp_size_entry_get_refval (info.size_entry, TOP);
print_preview_set_image_offsets (PRINT_PREVIEW (info.preview),
info.data->offset_x,
info.data->offset_y);
}
/**
* gimp_resolution_entry_get_y_in_dpi;
* @gre: The #GimpResolutionEntry you want to know the resolution of.
*
* Returns the Y resolution of the #GimpResolutionEntry in pixels per inch.
**/
gdouble
gimp_resolution_entry_get_y_in_dpi (GimpResolutionEntry *gre)
{
g_return_val_if_fail (GIMP_IS_RESOLUTION_ENTRY (gre), 0);
return gre->y.value * gimp_unit_get_factor (gre->unit);
}
/**
* gimp_resolution_entry_get_x_in_dpi;
* @gre: The #GimpResolutionEntry you want to know the resolution of.
*
* Returns the X resolution of the #GimpResolutionEntry in pixels per inch.
**/
gdouble
gimp_resolution_entry_get_x_in_dpi (GimpResolutionEntry *gre)
{
g_return_val_if_fail (GIMP_IS_RESOLUTION_ENTRY (gre), 0);
/* dots_in_one_unit * units_in_one_inch -> dpi */
return gre->x.value * gimp_unit_get_factor (gre->unit);
}
gdouble
gimp_paint_options_get_fade (GimpPaintOptions *paint_options,
GimpImage *image,
gdouble pixel_dist)
{
GimpFadeOptions *fade_options;
g_return_val_if_fail (GIMP_IS_PAINT_OPTIONS (paint_options),
GIMP_OPACITY_OPAQUE);
g_return_val_if_fail (GIMP_IS_IMAGE (image), GIMP_OPACITY_OPAQUE);
fade_options = paint_options->fade_options;
if (fade_options->use_fade)
{
gdouble fade_out = 0.0;
gdouble unit_factor;
switch (fade_options->fade_unit)
{
case GIMP_UNIT_PIXEL:
fade_out = fade_options->fade_length;
break;
case GIMP_UNIT_PERCENT:
fade_out = (MAX (gimp_image_get_width (image),
gimp_image_get_height (image)) *
fade_options->fade_length / 100);
break;
default:
{
gdouble xres;
gdouble yres;
gimp_image_get_resolution (image, &xres, &yres);
unit_factor = gimp_unit_get_factor (fade_options->fade_unit);
fade_out = (fade_options->fade_length *
MAX (xres, yres) / unit_factor);
}
break;
}
/* factor in the fade out value */
if (fade_out > 0.0)
{
gdouble x;
/* Model the amount of paint left as a gaussian curve */
x = pixel_dist / fade_out;
return exp (- x * x * 5.541); /* ln (1/255) */
}
return GIMP_OPACITY_TRANSPARENT;
}
return GIMP_OPACITY_OPAQUE;
}
static void
gimp_vectors_export_image_size (const GimpImage *image,
GString *str)
{
GimpUnit unit;
const gchar *abbrev;
gchar wbuf[G_ASCII_DTOSTR_BUF_SIZE];
gchar hbuf[G_ASCII_DTOSTR_BUF_SIZE];
gdouble xres;
gdouble yres;
gdouble w, h;
gimp_image_get_resolution (image, &xres, &yres);
w = (gdouble) gimp_image_get_width (image) / xres;
h = (gdouble) gimp_image_get_height (image) / yres;
/* FIXME: should probably use the display unit here */
unit = gimp_image_get_unit (image);
switch (unit)
{
case GIMP_UNIT_INCH: abbrev = "in"; break;
case GIMP_UNIT_MM: abbrev = "mm"; break;
case GIMP_UNIT_POINT: abbrev = "pt"; break;
case GIMP_UNIT_PICA: abbrev = "pc"; break;
default: abbrev = "cm";
unit = GIMP_UNIT_MM;
w /= 10.0;
h /= 10.0;
break;
}
g_ascii_formatd (wbuf, sizeof (wbuf), "%g", w * gimp_unit_get_factor (unit));
g_ascii_formatd (hbuf, sizeof (hbuf), "%g", h * gimp_unit_get_factor (unit));
g_string_append_printf (str,
"width=\"%s%s\" height=\"%s%s\"",
wbuf, abbrev, hbuf, abbrev);
}
static void
gimp_resolution_entry_update_value (GimpResolutionEntryField *gref,
gdouble value)
{
if (gref->stop_recursion > 0)
return;
gref->value = value;
gref->stop_recursion++;
if (gref->size)
gimp_resolution_entry_update_value (gref->corresponding,
gref->value /
gref->phy_size /
gimp_unit_get_factor (gref->gre->unit));
else
{
gdouble factor = gimp_unit_get_factor (gref->gre->unit);
gimp_resolution_entry_update_value (&gref->gre->width,
gref->value *
gref->gre->width.phy_size *
factor);
gimp_resolution_entry_update_value (&gref->gre->height,
gref->value *
gref->gre->height.phy_size *
factor);
}
gtk_adjustment_set_value (GTK_ADJUSTMENT (gref->adjustment), value);
gref->stop_recursion--;
g_signal_emit (gref->gre, gref->changed_signal, 0);
}
static void
gimp_resolution_entry_format_label (GimpResolutionEntry *gre,
GtkWidget *label,
gdouble size)
{
gchar *format = g_strdup_printf ("%%.%df %%s",
gimp_unit_get_digits (gre->unit));
gchar *text = g_strdup_printf (format,
size * gimp_unit_get_factor (gre->unit),
gimp_unit_get_plural (gre->unit));
g_free (format);
gtk_label_set_text (GTK_LABEL (label), text);
g_free (text);
}
gboolean
gimp_paint_options_get_gradient_color (GimpPaintOptions *paint_options,
GimpImage *image,
gdouble grad_point,
gdouble pixel_dist,
GimpRGB *color)
{
GimpGradientOptions *gradient_options;
GimpGradient *gradient;
g_return_val_if_fail (GIMP_IS_PAINT_OPTIONS (paint_options), FALSE);
g_return_val_if_fail (GIMP_IS_IMAGE (image), FALSE);
g_return_val_if_fail (color != NULL, FALSE);
gradient_options = paint_options->gradient_options;
gradient = gimp_context_get_gradient (GIMP_CONTEXT (paint_options));
if (paint_options->pressure_options->color ||
paint_options->velocity_options->color ||
paint_options->random_options->color)
{
gimp_gradient_get_color_at (gradient, GIMP_CONTEXT (paint_options),
NULL, grad_point,
gradient_options->gradient_reverse,
color);
return TRUE;
}
else if (gradient_options->use_gradient)
{
gdouble gradient_length = 0.0;
gdouble unit_factor;
gdouble pos;
switch (gradient_options->gradient_unit)
{
case GIMP_UNIT_PIXEL:
gradient_length = gradient_options->gradient_length;
break;
case GIMP_UNIT_PERCENT:
gradient_length = (MAX (gimp_image_get_width (image),
gimp_image_get_height (image)) *
gradient_options->gradient_length / 100);
break;
default:
{
gdouble xres;
gdouble yres;
gimp_image_get_resolution (image, &xres, &yres);
unit_factor = gimp_unit_get_factor (gradient_options->gradient_unit);
gradient_length = (gradient_options->gradient_length *
MAX (xres, yres) / unit_factor);
}
break;
}
if (gradient_length > 0.0)
pos = pixel_dist / gradient_length;
else
pos = 1.0;
/* for no repeat, set pos close to 1.0 after the first chunk */
if (gradient_options->gradient_repeat == GIMP_REPEAT_NONE && pos >= 1.0)
pos = 0.9999999;
if (((gint) pos & 1) &&
gradient_options->gradient_repeat != GIMP_REPEAT_SAWTOOTH)
pos = 1.0 - (pos - (gint) pos);
else
pos = pos - (gint) pos;
gimp_gradient_get_color_at (gradient, GIMP_CONTEXT (paint_options),
NULL, pos,
gradient_options->gradient_reverse,
color);
return TRUE;
}
return FALSE;
}
static void
print_size_info_set_resolution (PrintSizeInfo *info,
gdouble xres,
gdouble yres)
{
PrintData *data = info->data;
gdouble offset_x;
gdouble offset_y;
gdouble offset_x_max;
gdouble offset_y_max;
if (info->chain && gimp_chain_button_get_active (info->chain))
{
if (xres != data->xres)
yres = xres;
else
xres = yres;
}
data->xres = xres;
data->yres = yres;
g_signal_handlers_block_by_func (info->resolution_entry,
print_size_info_resolution_changed,
NULL);
gimp_size_entry_set_refval (info->resolution_entry, 0, xres);
gimp_size_entry_set_refval (info->resolution_entry, 1, yres);
g_signal_handlers_unblock_by_func (info->resolution_entry,
print_size_info_resolution_changed,
NULL);
g_signal_handlers_block_by_func (info->size_entry,
print_size_info_size_changed,
NULL);
gimp_size_entry_set_value (info->size_entry, WIDTH,
info->image_width *
gimp_unit_get_factor (data->unit) / xres);
gimp_size_entry_set_value (info->size_entry, HEIGHT,
info->image_height *
gimp_unit_get_factor (data->unit) / yres);
g_signal_handlers_unblock_by_func (info->size_entry,
print_size_info_size_changed,
NULL);
gimp_size_info_get_max_offsets (&offset_x_max, &offset_y_max);
offset_x = gimp_size_entry_get_refval (info->size_entry, LEFT);
offset_y = gimp_size_entry_get_refval (info->size_entry, TOP);
offset_x = CLAMP (offset_x, 0, offset_x_max);
offset_y = CLAMP (offset_y, 0, offset_y_max);
data->offset_x = offset_x;
data->offset_y = offset_y;
print_size_info_update_offsets ();
print_preview_set_image_dpi (PRINT_PREVIEW (info->preview),
data->xres, data->yres);
print_preview_set_image_offsets (PRINT_PREVIEW (info->preview),
data->offset_x, data->offset_y);
print_preview_set_image_offsets_max (PRINT_PREVIEW (info->preview),
offset_x_max, offset_y_max);
}
gboolean
save_image (const gchar *filename,
gint32 image_ID,
gint32 drawable_ID,
gint32 orig_image_ID,
gboolean preview,
GError **error)
{
GimpImageType drawable_type;
GeglBuffer *buffer = NULL;
const Babl *format;
GimpParasite *parasite;
static struct jpeg_compress_struct cinfo;
static struct my_error_mgr jerr;
JpegSubsampling subsampling;
FILE * volatile outfile;
guchar *data;
guchar *src;
gboolean has_alpha;
gint rowstride, yend;
drawable_type = gimp_drawable_type (drawable_ID);
buffer = gimp_drawable_get_buffer (drawable_ID);
if (! preview)
gimp_progress_init_printf (_("Saving '%s'"),
gimp_filename_to_utf8 (filename));
/* Step 1: allocate and initialize JPEG compression object */
/* We have to set up the error handler first, in case the initialization
* step fails. (Unlikely, but it could happen if you are out of memory.)
* This routine fills in the contents of struct jerr, and returns jerr's
* address which we place into the link field in cinfo.
*/
cinfo.err = jpeg_std_error (&jerr.pub);
jerr.pub.error_exit = my_error_exit;
outfile = NULL;
/* Establish the setjmp return context for my_error_exit to use. */
if (setjmp (jerr.setjmp_buffer))
{
/* If we get here, the JPEG code has signaled an error.
* We need to clean up the JPEG object, close the input file, and return.
*/
jpeg_destroy_compress (&cinfo);
if (outfile)
fclose (outfile);
if (buffer)
g_object_unref (buffer);
return FALSE;
}
/* Now we can initialize the JPEG compression object. */
jpeg_create_compress (&cinfo);
/* Step 2: specify data destination (eg, a file) */
/* Note: steps 2 and 3 can be done in either order. */
/* Here we use the library-supplied code to send compressed data to a
* stdio stream. You can also write your own code to do something else.
* VERY IMPORTANT: use "b" option to fopen() if you are on a machine that
* requires it in order to write binary files.
*/
if ((outfile = g_fopen (filename, "wb")) == NULL)
{
g_set_error (error, G_FILE_ERROR, g_file_error_from_errno (errno),
_("Could not open '%s' for writing: %s"),
gimp_filename_to_utf8 (filename), g_strerror (errno));
return FALSE;
}
jpeg_stdio_dest (&cinfo, outfile);
/* Get the input image and a pointer to its data.
*/
switch (drawable_type)
{
case GIMP_RGB_IMAGE:
/* # of color components per pixel */
cinfo.input_components = 3;
has_alpha = FALSE;
format = babl_format ("R'G'B' u8");
break;
case GIMP_GRAY_IMAGE:
/* # of color components per pixel */
cinfo.input_components = 1;
has_alpha = FALSE;
format = babl_format ("Y' u8");
break;
case GIMP_RGBA_IMAGE:
/* # of color components per pixel (minus the GIMP alpha channel) */
cinfo.input_components = 4 - 1;
has_alpha = TRUE;
format = babl_format ("R'G'B' u8");
break;
case GIMP_GRAYA_IMAGE:
/* # of color components per pixel (minus the GIMP alpha channel) */
cinfo.input_components = 2 - 1;
has_alpha = TRUE;
format = babl_format ("Y' u8");
break;
case GIMP_INDEXED_IMAGE:
default:
return FALSE;
}
/* Step 3: set parameters for compression */
/* First we supply a description of the input image.
* Four fields of the cinfo struct must be filled in:
*/
/* image width and height, in pixels */
cinfo.image_width = gegl_buffer_get_width (buffer);
cinfo.image_height = gegl_buffer_get_height (buffer);
/* colorspace of input image */
cinfo.in_color_space = (drawable_type == GIMP_RGB_IMAGE ||
drawable_type == GIMP_RGBA_IMAGE)
? JCS_RGB : JCS_GRAYSCALE;
/* Now use the library's routine to set default compression parameters.
* (You must set at least cinfo.in_color_space before calling this,
* since the defaults depend on the source color space.)
*/
jpeg_set_defaults (&cinfo);
jpeg_set_quality (&cinfo, (gint) (jsvals.quality + 0.5), jsvals.baseline);
if (jsvals.use_orig_quality && num_quant_tables > 0)
{
guint **quant_tables;
gint t;
/* override tables generated by jpeg_set_quality() with custom tables */
quant_tables = jpeg_restore_original_tables (image_ID, num_quant_tables);
if (quant_tables)
{
for (t = 0; t < num_quant_tables; t++)
{
jpeg_add_quant_table (&cinfo, t, quant_tables[t],
100, jsvals.baseline);
g_free (quant_tables[t]);
}
g_free (quant_tables);
}
}
if (arithc_supported)
{
cinfo.arith_code = jsvals.arithmetic_coding;
if (!jsvals.arithmetic_coding)
cinfo.optimize_coding = jsvals.optimize;
}
else
cinfo.optimize_coding = jsvals.optimize;
subsampling = (gimp_drawable_is_rgb (drawable_ID) ?
jsvals.subsmp : JPEG_SUBSAMPLING_1x1_1x1_1x1);
/* smoothing is not supported with nonstandard sampling ratios */
if (subsampling != JPEG_SUBSAMPLING_2x1_1x1_1x1 &&
subsampling != JPEG_SUBSAMPLING_1x2_1x1_1x1)
{
cinfo.smoothing_factor = (gint) (jsvals.smoothing * 100);
}
if (jsvals.progressive)
{
jpeg_simple_progression (&cinfo);
}
switch (subsampling)
{
case JPEG_SUBSAMPLING_2x2_1x1_1x1:
default:
cinfo.comp_info[0].h_samp_factor = 2;
cinfo.comp_info[0].v_samp_factor = 2;
cinfo.comp_info[1].h_samp_factor = 1;
cinfo.comp_info[1].v_samp_factor = 1;
cinfo.comp_info[2].h_samp_factor = 1;
cinfo.comp_info[2].v_samp_factor = 1;
break;
case JPEG_SUBSAMPLING_2x1_1x1_1x1:
cinfo.comp_info[0].h_samp_factor = 2;
cinfo.comp_info[0].v_samp_factor = 1;
cinfo.comp_info[1].h_samp_factor = 1;
cinfo.comp_info[1].v_samp_factor = 1;
cinfo.comp_info[2].h_samp_factor = 1;
cinfo.comp_info[2].v_samp_factor = 1;
break;
case JPEG_SUBSAMPLING_1x1_1x1_1x1:
cinfo.comp_info[0].h_samp_factor = 1;
cinfo.comp_info[0].v_samp_factor = 1;
cinfo.comp_info[1].h_samp_factor = 1;
cinfo.comp_info[1].v_samp_factor = 1;
cinfo.comp_info[2].h_samp_factor = 1;
cinfo.comp_info[2].v_samp_factor = 1;
break;
case JPEG_SUBSAMPLING_1x2_1x1_1x1:
cinfo.comp_info[0].h_samp_factor = 1;
cinfo.comp_info[0].v_samp_factor = 2;
cinfo.comp_info[1].h_samp_factor = 1;
cinfo.comp_info[1].v_samp_factor = 1;
cinfo.comp_info[2].h_samp_factor = 1;
cinfo.comp_info[2].v_samp_factor = 1;
break;
}
cinfo.restart_interval = 0;
cinfo.restart_in_rows = jsvals.restart;
switch (jsvals.dct)
{
case 0:
default:
cinfo.dct_method = JDCT_ISLOW;
break;
case 1:
cinfo.dct_method = JDCT_IFAST;
break;
case 2:
cinfo.dct_method = JDCT_FLOAT;
break;
}
{
gdouble xresolution;
gdouble yresolution;
gimp_image_get_resolution (orig_image_ID, &xresolution, &yresolution);
if (xresolution > 1e-5 && yresolution > 1e-5)
{
gdouble factor;
factor = gimp_unit_get_factor (gimp_image_get_unit (orig_image_ID));
if (factor == 2.54 /* cm */ ||
factor == 25.4 /* mm */)
{
cinfo.density_unit = 2; /* dots per cm */
xresolution /= 2.54;
yresolution /= 2.54;
}
else
{
cinfo.density_unit = 1; /* dots per inch */
}
cinfo.X_density = xresolution;
cinfo.Y_density = yresolution;
}
}
/* Step 4: Start compressor */
/* TRUE ensures that we will write a complete interchange-JPEG file.
* Pass TRUE unless you are very sure of what you're doing.
*/
jpeg_start_compress (&cinfo, TRUE);
/* Step 4.1: Write the comment out - pw */
if (image_comment && *image_comment)
{
#ifdef GIMP_UNSTABLE
g_print ("jpeg-save: saving image comment (%d bytes)\n",
(int) strlen (image_comment));
#endif
jpeg_write_marker (&cinfo, JPEG_COM,
(guchar *) image_comment, strlen (image_comment));
}
/* Step 4.2: store the color profile if there is one */
parasite = gimp_image_get_parasite (orig_image_ID, "icc-profile");
if (parasite)
{
jpeg_icc_write_profile (&cinfo,
gimp_parasite_data (parasite),
gimp_parasite_data_size (parasite));
gimp_parasite_free (parasite);
}
/* Step 5: while (scan lines remain to be written) */
/* jpeg_write_scanlines(...); */
/* Here we use the library's state variable cinfo.next_scanline as the
* loop counter, so that we don't have to keep track ourselves.
* To keep things simple, we pass one scanline per call; you can pass
* more if you wish, though.
*/
/* JSAMPLEs per row in image_buffer */
rowstride = cinfo.input_components * cinfo.image_width;
data = g_new (guchar, rowstride * gimp_tile_height ());
/* fault if cinfo.next_scanline isn't initially a multiple of
* gimp_tile_height */
src = NULL;
/*
* sg - if we preview, we want this to happen in the background -- do
* not duplicate code in the future; for now, it's OK
*/
if (preview)
{
PreviewPersistent *pp = g_new (PreviewPersistent, 1);
/* pass all the information we need */
pp->cinfo = cinfo;
pp->tile_height = gimp_tile_height();
pp->data = data;
pp->outfile = outfile;
pp->has_alpha = has_alpha;
pp->rowstride = rowstride;
pp->data = data;
pp->buffer = buffer;
pp->format = format;
pp->src = NULL;
pp->file_name = filename;
pp->abort_me = FALSE;
g_warn_if_fail (prev_p == NULL);
prev_p = pp;
pp->cinfo.err = jpeg_std_error(&(pp->jerr));
pp->jerr.error_exit = background_error_exit;
gtk_label_set_text (GTK_LABEL (preview_size),
_("Calculating file size..."));
pp->source_id = g_idle_add ((GSourceFunc) background_jpeg_save, pp);
/* background_jpeg_save() will cleanup as needed */
return TRUE;
}
while (cinfo.next_scanline < cinfo.image_height)
{
if ((cinfo.next_scanline % gimp_tile_height ()) == 0)
{
yend = cinfo.next_scanline + gimp_tile_height ();
yend = MIN (yend, cinfo.image_height);
gegl_buffer_get (buffer,
GEGL_RECTANGLE (0, cinfo.next_scanline,
cinfo.image_width,
(yend - cinfo.next_scanline)),
1.0,
format,
data,
GEGL_AUTO_ROWSTRIDE,
GEGL_ABYSS_NONE);
src = data;
}
jpeg_write_scanlines (&cinfo, (JSAMPARRAY) &src, 1);
src += rowstride;
if ((cinfo.next_scanline % 32) == 0)
gimp_progress_update ((gdouble) cinfo.next_scanline /
(gdouble) cinfo.image_height);
}
/* Step 6: Finish compression */
jpeg_finish_compress (&cinfo);
/* After finish_compress, we can close the output file. */
fclose (outfile);
/* Step 7: release JPEG compression object */
/* This is an important step since it will release a good deal of memory. */
jpeg_destroy_compress (&cinfo);
/* free the temporary buffer */
g_free (data);
/* And we're done! */
gimp_progress_update (1.0);
g_object_unref (buffer);
return TRUE;
}
static void
gimp_paint_tool_oper_update (GimpTool *tool,
const GimpCoords *coords,
GdkModifierType state,
gboolean proximity,
GimpDisplay *display)
{
GimpPaintTool *paint_tool = GIMP_PAINT_TOOL (tool);
GimpDrawTool *draw_tool = GIMP_DRAW_TOOL (tool);
GimpPaintOptions *paint_options = GIMP_PAINT_TOOL_GET_OPTIONS (tool);
GimpPaintCore *core = paint_tool->core;
GimpDisplayShell *shell = gimp_display_get_shell (display);
GimpImage *image = gimp_display_get_image (display);
GimpDrawable *drawable = gimp_image_get_active_drawable (image);
if (gimp_color_tool_is_enabled (GIMP_COLOR_TOOL (tool)))
{
GIMP_TOOL_CLASS (parent_class)->oper_update (tool, coords, state,
proximity, display);
return;
}
gimp_draw_tool_pause (draw_tool);
if (gimp_draw_tool_is_active (draw_tool) &&
draw_tool->display != display)
gimp_draw_tool_stop (draw_tool);
gimp_tool_pop_status (tool, display);
if (tool->display &&
tool->display != display &&
gimp_display_get_image (tool->display) == image)
{
/* if this is a different display, but the same image, HACK around
* in tool internals AFTER stopping the current draw_tool, so
* straight line drawing works across different views of the
* same image.
*/
tool->display = display;
}
if (drawable && proximity)
{
gboolean constrain_mask = gimp_get_constrain_behavior_mask ();
gint off_x, off_y;
core->cur_coords = *coords;
gimp_item_get_offset (GIMP_ITEM (drawable), &off_x, &off_y);
core->cur_coords.x -= off_x;
core->cur_coords.y -= off_y;
if (display == tool->display && (state & GIMP_PAINT_TOOL_LINE_MASK))
{
/* If shift is down and this is not the first paint stroke,
* draw a line.
*/
gchar *status_help;
gdouble dx, dy, dist;
gimp_paint_core_round_line (core, paint_options,
(state & constrain_mask) != 0);
dx = core->cur_coords.x - core->last_coords.x;
dy = core->cur_coords.y - core->last_coords.y;
status_help = gimp_suggest_modifiers (paint_tool->status_line,
constrain_mask & ~state,
NULL,
_("%s for constrained angles"),
NULL);
/* show distance in statusbar */
if (shell->unit == GIMP_UNIT_PIXEL)
{
dist = sqrt (SQR (dx) + SQR (dy));
gimp_tool_push_status (tool, display, "%.1f %s. %s",
dist, _("pixels"), status_help);
}
else
{
gdouble xres;
gdouble yres;
gchar format_str[64];
gimp_image_get_resolution (image, &xres, &yres);
g_snprintf (format_str, sizeof (format_str), "%%.%df %s. %%s",
gimp_unit_get_digits (shell->unit),
gimp_unit_get_symbol (shell->unit));
dist = (gimp_unit_get_factor (shell->unit) *
sqrt (SQR (dx / xres) +
SQR (dy / yres)));
gimp_tool_push_status (tool, display, format_str,
dist, status_help);
}
g_free (status_help);
paint_tool->draw_line = TRUE;
}
else
{
gchar *status;
GdkModifierType modifiers = 0;
/* HACK: A paint tool may set status_ctrl to NULL to indicate that
* it ignores the Ctrl modifier (temporarily or permanently), so
* it should not be suggested. This is different from how
* gimp_suggest_modifiers() would interpret this parameter.
*/
if (paint_tool->status_ctrl != NULL)
modifiers |= constrain_mask;
/* suggest drawing lines only after the first point is set
*/
if (display == tool->display)
modifiers |= GIMP_PAINT_TOOL_LINE_MASK;
status = gimp_suggest_modifiers (paint_tool->status,
modifiers & ~state,
_("%s for a straight line"),
paint_tool->status_ctrl,
NULL);
gimp_tool_push_status (tool, display, "%s", status);
g_free (status);
paint_tool->draw_line = FALSE;
}
if (! gimp_draw_tool_is_active (draw_tool))
gimp_draw_tool_start (draw_tool, display);
}
else if (gimp_draw_tool_is_active (draw_tool))
{
gimp_draw_tool_stop (draw_tool);
}
GIMP_TOOL_CLASS (parent_class)->oper_update (tool, coords, state, proximity,
display);
gimp_draw_tool_resume (draw_tool);
}
static gint32
load_image (PopplerDocument *doc,
const gchar *filename,
GimpRunMode run_mode,
GimpPageSelectorTarget target,
guint32 resolution,
PdfSelectedPages *pages)
{
gint32 image_ID = 0;
gint32 *images = NULL;
gint i;
gdouble scale;
gdouble doc_progress = 0;
if (target == GIMP_PAGE_SELECTOR_TARGET_IMAGES)
images = g_new0 (gint32, pages->n_pages);
gimp_progress_init_printf (_("Opening '%s'"),
gimp_filename_to_utf8 (filename));
scale = resolution / gimp_unit_get_factor (GIMP_UNIT_POINT);
/* read the file */
for (i = 0; i < pages->n_pages; i++)
{
PopplerPage *page;
gchar *page_label;
gdouble page_width;
gdouble page_height;
GdkPixbuf *buf;
gint width;
gint height;
page = poppler_document_get_page (doc, pages->pages[i]);
poppler_page_get_size (page, &page_width, &page_height);
width = page_width * scale;
height = page_height * scale;
g_object_get (G_OBJECT (page), "label", &page_label, NULL);
if (! image_ID)
{
gchar *name;
image_ID = gimp_image_new (width, height, GIMP_RGB);
gimp_image_undo_disable (image_ID);
if (target == GIMP_PAGE_SELECTOR_TARGET_IMAGES)
name = g_strdup_printf (_("%s-%s"), filename, page_label);
else
name = g_strdup_printf (_("%s-pages"), filename);
gimp_image_set_filename (image_ID, name);
g_free (name);
gimp_image_set_resolution (image_ID, resolution, resolution);
}
buf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, FALSE, 8, width, height);
poppler_page_render_to_pixbuf (page, 0, 0, width, height, scale, 0, buf);
layer_from_pixbuf (image_ID, page_label, i, buf,
doc_progress, 1.0 / pages->n_pages);
g_free (page_label);
g_object_unref (buf);
doc_progress = (double) (i + 1) / pages->n_pages;
gimp_progress_update (doc_progress);
if (target == GIMP_PAGE_SELECTOR_TARGET_IMAGES)
{
images[i] = image_ID;
gimp_image_undo_enable (image_ID);
gimp_image_clean_all (image_ID);
image_ID = 0;
}
}
if (image_ID)
{
gimp_image_undo_enable (image_ID);
gimp_image_clean_all (image_ID);
}
if (target == GIMP_PAGE_SELECTOR_TARGET_IMAGES)
{
if (run_mode != GIMP_RUN_NONINTERACTIVE)
{
/* Display images in reverse order. The last will be
* displayed by GIMP itself
*/
for (i = pages->n_pages - 1; i > 0; i--)
gimp_display_new (images[i]);
}
image_ID = images[0];
g_free (images);
}
return image_ID;
}
static void
run (const gchar *name,
gint nparams,
const GimpParam *param,
gint *nreturn_vals,
GimpParam **return_vals)
{
static GimpParam values[6];
GimpRunMode run_mode;
GimpPDBStatusType status = GIMP_PDB_SUCCESS;
gint32 image_ID = -1;
PopplerDocument *doc = NULL;
GError *error = NULL;
run_mode = param[0].data.d_int32;
INIT_I18N ();
*nreturn_vals = 1;
*return_vals = values;
values[0].type = GIMP_PDB_STATUS;
values[0].data.d_status = GIMP_PDB_EXECUTION_ERROR;
if (! g_thread_supported ())
g_thread_init (NULL);
if (strcmp (name, LOAD_PROC) == 0)
{
PdfSelectedPages pages = { 0, NULL };
switch (run_mode)
{
case GIMP_RUN_INTERACTIVE:
/* Possibly retrieve last settings */
gimp_get_data (LOAD_PROC, &loadvals);
doc = open_document (param[1].data.d_string, &error);
if (!doc)
{
status = GIMP_PDB_EXECUTION_ERROR;
break;
}
if (load_dialog (doc, &pages))
gimp_set_data (LOAD_PROC, &loadvals, sizeof(loadvals));
else
status = GIMP_PDB_CANCEL;
break;
case GIMP_RUN_WITH_LAST_VALS:
/* FIXME: implement last vals mode */
status = GIMP_PDB_EXECUTION_ERROR;
break;
case GIMP_RUN_NONINTERACTIVE:
doc = open_document (param[1].data.d_string, &error);
if (doc)
{
PopplerPage *test_page = poppler_document_get_page (doc, 0);
if (test_page)
{
pages.n_pages = 1;
pages.pages = g_new (gint, 1);
pages.pages[0] = 0;
g_object_unref (test_page);
}
else
{
status = GIMP_PDB_EXECUTION_ERROR;
g_object_unref (doc);
}
}
else
{
status = GIMP_PDB_EXECUTION_ERROR;
}
break;
}
if (status == GIMP_PDB_SUCCESS)
{
image_ID = load_image (doc, param[1].data.d_string,
run_mode,
loadvals.target,
loadvals.resolution,
&pages);
if (image_ID != -1)
{
*nreturn_vals = 2;
values[1].type = GIMP_PDB_IMAGE;
values[1].data.d_image = image_ID;
}
else
{
status = GIMP_PDB_EXECUTION_ERROR;
}
}
if (doc)
g_object_unref (doc);
g_free (pages.pages);
}
else if (strcmp (name, LOAD_THUMB_PROC) == 0)
{
if (nparams < 2)
{
status = GIMP_PDB_CALLING_ERROR;
}
else
{
gdouble width = 0;
gdouble height = 0;
gdouble scale;
gint32 image = -1;
gint num_pages = 0;
GdkPixbuf *pixbuf = NULL;
/* Possibly retrieve last settings */
gimp_get_data (LOAD_PROC, &loadvals);
doc = open_document (param[0].data.d_string, &error);
if (doc)
{
PopplerPage *page = poppler_document_get_page (doc, 0);
if (page)
{
poppler_page_get_size (page, &width, &height);
g_object_unref (page);
}
num_pages = poppler_document_get_n_pages (doc);
pixbuf = get_thumbnail (doc, 0, param[1].data.d_int32);
g_object_unref (doc);
}
if (pixbuf)
{
image = gimp_image_new (gdk_pixbuf_get_width (pixbuf),
gdk_pixbuf_get_height (pixbuf),
GIMP_RGB);
gimp_image_undo_disable (image);
layer_from_pixbuf (image, "thumbnail", 0, pixbuf, 0.0, 1.0);
g_object_unref (pixbuf);
gimp_image_undo_enable (image);
gimp_image_clean_all (image);
}
scale = loadvals.resolution / gimp_unit_get_factor (GIMP_UNIT_POINT);
width *= scale;
height *= scale;
if (image != -1)
{
*nreturn_vals = 6;
values[1].type = GIMP_PDB_IMAGE;
values[1].data.d_image = image;
values[2].type = GIMP_PDB_INT32;
values[2].data.d_int32 = width;
values[3].type = GIMP_PDB_INT32;
values[3].data.d_int32 = height;
values[4].type = GIMP_PDB_INT32;
values[4].data.d_int32 = GIMP_RGB_IMAGE;
values[5].type = GIMP_PDB_INT32;
values[5].data.d_int32 = num_pages;
}
else
{
status = GIMP_PDB_EXECUTION_ERROR;
}
}
}
else
{
status = GIMP_PDB_CALLING_ERROR;
}
if (status != GIMP_PDB_SUCCESS && error)
{
*nreturn_vals = 2;
values[1].type = GIMP_PDB_STRING;
values[1].data.d_string = error->message;
}
values[0].data.d_status = status;
}
static void
print_size_info_set_page_setup (PrintSizeInfo *info)
{
GtkPageSetup *setup;
PrintData *data = info->data;
gdouble page_width;
gdouble page_height;
gdouble x;
gdouble y;
setup = gtk_print_operation_get_default_page_setup (data->operation);
print_size_info_get_page_dimensions (info,
&page_width, &page_height,
GTK_UNIT_INCH);
page_width *= gimp_unit_get_factor (data->unit);
page_height *= gimp_unit_get_factor (data->unit);
if (info->area_label)
{
gchar *format;
gchar *text;
format = g_strdup_printf ("%%.%df x %%.%df %s",
gimp_unit_get_digits (data->unit),
gimp_unit_get_digits (data->unit),
gimp_unit_get_plural (data->unit));
text = g_strdup_printf (format, page_width, page_height);
g_free (format);
gtk_label_set_text (GTK_LABEL (info->area_label), text);
g_free (text);
}
x = page_width;
y = page_height;
if (info->chain && gimp_chain_button_get_active (info->chain))
{
gdouble ratio_x = page_width / (gdouble) info->image_width;
gdouble ratio_y = page_height / (gdouble) info->image_height;
if (ratio_x < ratio_y)
y = (gdouble) info->image_height * ratio_x;
else
x = (gdouble) info->image_width * ratio_y;
}
gimp_size_entry_set_value_boundaries (info->size_entry, WIDTH,
page_width / 100.0, x);
gimp_size_entry_set_value_boundaries (info->size_entry, HEIGHT,
page_height / 100.0, y);
print_size_info_get_page_dimensions (info,
&page_width, &page_height,
GTK_UNIT_POINTS);
x = (gdouble) info->image_width / page_width * 72.0;
y = (gdouble) info->image_height / page_height * 72.0;
if (info->chain && gimp_chain_button_get_active (info->chain))
{
gdouble max = MAX (x, y);
x = y = max;
}
gimp_size_entry_set_refval_boundaries (info->resolution_entry, 0,
x, GIMP_MAX_RESOLUTION);
gimp_size_entry_set_refval_boundaries (info->resolution_entry, 1,
y, GIMP_MAX_RESOLUTION);
}
static void
gimp_image_prop_view_update (GimpImagePropView *view)
{
GimpImage *image = view->image;
GimpImageBaseType type;
GimpPrecision precision;
GimpUnit unit;
gdouble unit_factor;
gint unit_digits;
const gchar *desc;
gchar format_buf[32];
gchar buf[256];
gdouble xres;
gdouble yres;
gimp_image_get_resolution (image, &xres, &yres);
/* pixel size */
g_snprintf (buf, sizeof (buf), ngettext ("%d × %d pixel",
"%d × %d pixels",
gimp_image_get_height (image)),
gimp_image_get_width (image),
gimp_image_get_height (image));
gtk_label_set_text (GTK_LABEL (view->pixel_size_label), buf);
/* print size */
unit = gimp_get_default_unit ();
unit_digits = gimp_unit_get_digits (unit);
g_snprintf (format_buf, sizeof (format_buf), "%%.%df × %%.%df %s",
unit_digits + 1, unit_digits + 1,
gimp_unit_get_plural (unit));
g_snprintf (buf, sizeof (buf), format_buf,
gimp_pixels_to_units (gimp_image_get_width (image), unit, xres),
gimp_pixels_to_units (gimp_image_get_height (image), unit, yres));
gtk_label_set_text (GTK_LABEL (view->print_size_label), buf);
/* resolution */
unit = gimp_image_get_unit (image);
unit_factor = gimp_unit_get_factor (unit);
g_snprintf (format_buf, sizeof (format_buf), _("pixels/%s"),
gimp_unit_get_abbreviation (unit));
g_snprintf (buf, sizeof (buf), _("%g × %g %s"),
xres / unit_factor,
yres / unit_factor,
unit == GIMP_UNIT_INCH ? _("ppi") : format_buf);
gtk_label_set_text (GTK_LABEL (view->resolution_label), buf);
/* color type */
type = gimp_image_get_base_type (image);
gimp_enum_get_value (GIMP_TYPE_IMAGE_BASE_TYPE, type,
NULL, NULL, &desc, NULL);
switch (type)
{
case GIMP_RGB:
case GIMP_GRAY:
g_snprintf (buf, sizeof (buf), "%s", desc);
break;
case GIMP_INDEXED:
g_snprintf (buf, sizeof (buf),
"%s (%d %s)", desc, gimp_image_get_colormap_size (image),
_("colors"));
break;
}
gtk_label_set_text (GTK_LABEL (view->colorspace_label), buf);
/* precision */
precision = gimp_image_get_precision (image);
gimp_enum_get_value (GIMP_TYPE_PRECISION, precision,
NULL, NULL, &desc, NULL);
gtk_label_set_text (GTK_LABEL (view->precision_label), desc);
/* size in memory */
gimp_image_prop_view_label_set_memsize (view->memsize_label,
GIMP_OBJECT (image));
/* undo / redo */
gimp_image_prop_view_label_set_undo (view->undo_label,
gimp_image_get_undo_stack (image));
gimp_image_prop_view_label_set_undo (view->redo_label,
gimp_image_get_redo_stack (image));
/* number of layers */
g_snprintf (buf, sizeof (buf), "%d",
gimp_image_get_width (image) *
gimp_image_get_height (image));
gtk_label_set_text (GTK_LABEL (view->pixels_label), buf);
/* number of layers */
g_snprintf (buf, sizeof (buf), "%d",
gimp_image_get_n_layers (image));
gtk_label_set_text (GTK_LABEL (view->layers_label), buf);
/* number of channels */
g_snprintf (buf, sizeof (buf), "%d",
gimp_image_get_n_channels (image));
gtk_label_set_text (GTK_LABEL (view->channels_label), buf);
/* number of vectors */
g_snprintf (buf, sizeof (buf), "%d",
gimp_image_get_n_vectors (image));
gtk_label_set_text (GTK_LABEL (view->vectors_label), buf);
}
/**
* gimp_unit_format_string:
* @format: A printf-like format string which is used to create the unit
* string.
* @unit: A unit.
*
* The @format string supports the following percent expansions:
*
* <informaltable pgwide="1" frame="none" role="enum">
* <tgroup cols="2"><colspec colwidth="1*"/><colspec colwidth="8*"/>
* <tbody>
* <row>
* <entry>% f</entry>
* <entry>Factor (how many units make up an inch)</entry>
* </row>
* <row>
* <entry>% y</entry>
* <entry>Symbol (e.g. "''" for GIMP_UNIT_INCH)</entry>
* </row>
* <row>
* <entry>% a</entry>
* <entry>Abbreviation</entry>
* </row>
* <row>
* <entry>% s</entry>
* <entry>Singular</entry>
* </row>
* <row>
* <entry>% p</entry>
* <entry>Plural</entry>
* </row>
* <row>
* <entry>%%</entry>
* <entry>Literal percent</entry>
* </row>
* </tbody>
* </tgroup>
* </informaltable>
*
* Returns: A newly allocated string with above percent expressions
* replaced with the resp. strings for @unit.
*
* Since: 2.8
**/
gchar *
gimp_unit_format_string (const gchar *format,
GimpUnit unit)
{
gchar buffer[1024];
gint i = 0;
g_return_val_if_fail (format != NULL, NULL);
g_return_val_if_fail (unit == GIMP_UNIT_PERCENT ||
(unit >= GIMP_UNIT_PIXEL &&
unit < gimp_unit_get_number_of_units ()), NULL);
while (i < (sizeof (buffer) - 1) && *format)
{
switch (*format)
{
case '%':
format++;
switch (*format)
{
case 0:
g_warning ("%s: unit-menu-format string ended within %%-sequence",
G_STRFUNC);
break;
case '%':
buffer[i++] = '%';
break;
case 'f': /* factor (how many units make up an inch) */
i += print (buffer, sizeof (buffer), i, "%f",
gimp_unit_get_factor (unit));
break;
case 'y': /* symbol ("''" for inch) */
i += print (buffer, sizeof (buffer), i, "%s",
gimp_unit_get_symbol (unit));
break;
case 'a': /* abbreviation */
i += print (buffer, sizeof (buffer), i, "%s",
gimp_unit_get_abbreviation (unit));
break;
case 's': /* singular */
i += print (buffer, sizeof (buffer), i, "%s",
gimp_unit_get_singular (unit));
break;
case 'p': /* plural */
i += print (buffer, sizeof (buffer), i, "%s",
gimp_unit_get_plural (unit));
break;
default:
g_warning ("%s: unit-menu-format contains unknown format "
"sequence '%%%c'", G_STRFUNC, *format);
break;
}
break;
default:
buffer[i++] = *format;
break;
}
format++;
}
buffer[MIN (i, sizeof (buffer) - 1)] = 0;
return g_strdup (buffer);
}
/**
* gimp_display_shell_get_line_status:
* @status: initial status text.
* @separator: separator text between the line information and @status.
* @shell: #GimpDisplayShell this status text will be displayed for.
* @x1: abscissa of first point.
* @y1: ordinate of first point.
* @x2: abscissa of second point.
* @y2: ordinate of second point.
*
* Utility function to prepend the status message with a distance and
* angle value. Obviously this is only to be used for tools when it
* makes sense, and in particular when there is a concept of line. For
* instance when shift-clicking a painting tool or in the blend tool,
* etc.
* This utility prevents code duplication but also ensures a common
* display for every tool where such a status is needed. It will take
* into account the shell unit settings and will use the ideal digit
* precision according to current image resolution.
*
* Return value: a newly allocated string containing the enhanced status.
**/
gchar *
gimp_display_shell_get_line_status (GimpDisplayShell *shell,
const gchar *status,
const gchar *separator,
gdouble x1,
gdouble y1,
gdouble x2,
gdouble y2)
{
GimpImage *image;
gchar *enhanced_status;
gdouble xres;
gdouble yres;
gdouble dx, dy, pixel_dist;
gdouble angle;
image = gimp_display_get_image (shell->display);
if (! image)
{
/* This makes no sense to add line information when no image is
* attached to the display. */
return g_strdup (status);
}
if (shell->unit == GIMP_UNIT_PIXEL)
xres = yres = 1.0;
else
gimp_image_get_resolution (image, &xres, &yres);
dx = x2 - x1;
dy = y2 - y1;
pixel_dist = sqrt (SQR (dx) + SQR (dy));
if (dx)
{
angle = gimp_rad_to_deg (atan ((dy/yres) / (dx/xres)));
if (dx > 0)
{
if (dy > 0)
angle = 360.0 - angle;
else if (dy < 0)
angle = -angle;
}
else
{
angle = 180.0 - angle;
}
}
else if (dy)
{
angle = dy > 0 ? 270.0 : 90.0;
}
else
{
angle = 0.0;
}
if (shell->unit == GIMP_UNIT_PIXEL)
{
enhanced_status = g_strdup_printf ("%.1f %s, %.2f\302\260%s%s",
pixel_dist, _("pixels"), angle,
separator, status);
}
else
{
gdouble inch_dist;
gdouble unit_dist;
gint digits = 0;
/* The distance in unit. */
inch_dist = sqrt (SQR (dx / xres) + SQR (dy / yres));
unit_dist = gimp_unit_get_factor (shell->unit) * inch_dist;
/* The ideal digit precision for unit in current resolution. */
if (inch_dist)
digits = gimp_unit_get_scaled_digits (shell->unit,
pixel_dist / inch_dist);
enhanced_status = g_strdup_printf ("%.*f %s, %.2f\302\260%s%s",
digits, unit_dist,
gimp_unit_get_symbol (shell->unit),
angle, separator, status);
}
return enhanced_status;
}
static void
gimp_resolution_entry_field_init (GimpResolutionEntry *gre,
GimpResolutionEntryField *gref,
GimpResolutionEntryField *corresponding,
guint changed_signal,
gdouble initial_val,
GimpUnit initial_unit,
gboolean size,
gint spinbutton_width)
{
gint digits;
g_return_if_fail (GIMP_IS_RESOLUTION_ENTRY (gre));
gref->gre = gre;
gref->corresponding = corresponding;
gref->changed_signal = gimp_resolution_entry_signals[changed_signal];
if (size)
{
gref->value = initial_val /
gimp_unit_get_factor (initial_unit) *
corresponding->value *
gimp_unit_get_factor (gre->unit);
gref->phy_size = initial_val /
gimp_unit_get_factor (initial_unit);
}
else
{
gref->value = initial_val;
}
gref->min_value = GIMP_MIN_RESOLUTION;
gref->max_value = GIMP_MAX_RESOLUTION;
gref->adjustment = NULL;
gref->stop_recursion = 0;
gref->size = size;
if (size)
{
gref->label = g_object_new (GTK_TYPE_LABEL,
"xalign", 0.0,
"yalign", 0.5,
NULL);
gimp_label_set_attributes (GTK_LABEL (gref->label),
PANGO_ATTR_STYLE, PANGO_STYLE_ITALIC,
-1);
gimp_resolution_entry_format_label (gre, gref->label, gref->phy_size);
}
digits = size ? 0 : MIN (gimp_unit_get_digits (initial_unit), 5) + 1;
gref->spinbutton = gimp_spin_button_new (&gref->adjustment,
gref->value,
gref->min_value,
gref->max_value,
1.0, 10.0, 0.0,
1.0,
digits);
if (spinbutton_width > 0)
{
if (spinbutton_width < 17)
gtk_entry_set_width_chars (GTK_ENTRY (gref->spinbutton),
spinbutton_width);
else
gtk_widget_set_size_request (gref->spinbutton,
spinbutton_width, -1);
}
}
gdouble
gimp_paint_options_get_fade (GimpPaintOptions *paint_options,
GimpImage *image,
gdouble pixel_dist)
{
GimpFadeOptions *fade_options;
gdouble z = -1.0;
gdouble fade_out = 0.0;
gdouble unit_factor;
gdouble pos;
g_return_val_if_fail (GIMP_IS_PAINT_OPTIONS (paint_options),
DYNAMIC_MAX_VALUE);
g_return_val_if_fail (GIMP_IS_IMAGE (image), DYNAMIC_MAX_VALUE);
fade_options = paint_options->fade_options;
switch (fade_options->fade_unit)
{
case GIMP_UNIT_PIXEL:
fade_out = fade_options->fade_length;
break;
case GIMP_UNIT_PERCENT:
fade_out = (MAX (gimp_image_get_width (image),
gimp_image_get_height (image)) *
fade_options->fade_length / 100);
break;
default:
{
gdouble xres;
gdouble yres;
gimp_image_get_resolution (image, &xres, &yres);
unit_factor = gimp_unit_get_factor (fade_options->fade_unit);
fade_out = (fade_options->fade_length *
MAX (xres, yres) / unit_factor);
}
break;
}
/* factor in the fade out value */
if (fade_out > 0.0)
{
pos = pixel_dist / fade_out;
}
else
pos = DYNAMIC_MAX_VALUE;
/* for no repeat, set pos close to 1.0 after the first chunk */
if (fade_options->fade_repeat == GIMP_REPEAT_NONE && pos >= DYNAMIC_MAX_VALUE)
pos = DYNAMIC_MAX_VALUE - 0.0000001;
if (((gint) pos & 1) &&
fade_options->fade_repeat != GIMP_REPEAT_SAWTOOTH)
pos = DYNAMIC_MAX_VALUE - (pos - (gint) pos);
else
pos = pos - (gint) pos;
z = pos;
if (fade_options->fade_reverse)
z = 1.0 - z;
return z; /* ln (1/255) */
}
static GtkWidget *
print_size_frame (PrintData *data,
GtkSizeGroup *label_group,
GtkSizeGroup *entry_group)
{
GtkWidget *entry;
GtkWidget *height;
GtkWidget *vbox;
GtkWidget *hbox;
GtkWidget *chain;
GtkWidget *frame;
GtkWidget *label;
GtkObject *adj;
gdouble image_width;
gdouble image_height;
image_width = (info.image_width *
gimp_unit_get_factor (data->unit) / data->xres);
image_height = (info.image_height *
gimp_unit_get_factor (data->unit) / data->yres);
frame = gimp_frame_new (_("Size"));
vbox = gtk_vbox_new (FALSE, 6);
gtk_container_add (GTK_CONTAINER (frame), vbox);
gtk_widget_show (vbox);
/* the print size entry */
hbox = gtk_hbox_new (FALSE, 0);
gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
entry = gimp_size_entry_new (1, data->unit, "%p",
FALSE, FALSE, FALSE, SB_WIDTH,
GIMP_SIZE_ENTRY_UPDATE_SIZE);
gtk_box_pack_start (GTK_BOX (hbox), entry, FALSE, FALSE, 0);
gtk_widget_show (entry);
info.size_entry = GIMP_SIZE_ENTRY (entry);
gtk_table_set_row_spacings (GTK_TABLE (entry), 2);
gtk_table_set_col_spacing (GTK_TABLE (entry), 0, 6);
gtk_table_set_col_spacing (GTK_TABLE (entry), 2, 6);
height = gimp_spin_button_new (&adj, 1, 1, 1, 1, 10, 0, 1, 2);
gimp_size_entry_add_field (GIMP_SIZE_ENTRY (entry),
GTK_SPIN_BUTTON (height), NULL);
gtk_table_attach_defaults (GTK_TABLE (entry), height, 1, 2, 0, 1);
gtk_widget_show (height);
gtk_size_group_add_widget (entry_group, height);
gimp_size_entry_attach_label (GIMP_SIZE_ENTRY (entry),
_("_Width:"), 0, 0, 0.0);
label = gimp_size_entry_attach_label (GIMP_SIZE_ENTRY (entry),
_("_Height:"), 1, 0, 0.0);
gtk_size_group_add_widget (label_group, label);
gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (entry), 0,
data->xres, FALSE);
gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (entry), 1,
data->yres, FALSE);
gimp_size_entry_set_value (GIMP_SIZE_ENTRY (entry), 0, image_width);
gimp_size_entry_set_value (GIMP_SIZE_ENTRY (entry), 1, image_height);
/* the resolution entry */
hbox = gtk_hbox_new (FALSE, 0);
gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
entry = gimp_size_entry_new (1, data->image_unit,
_("pixels/%a"),
FALSE, FALSE, FALSE, SB_WIDTH,
GIMP_SIZE_ENTRY_UPDATE_RESOLUTION);
gtk_box_pack_start (GTK_BOX (hbox), entry, FALSE, FALSE, 0);
gtk_widget_show (entry);
info.resolution_entry = GIMP_SIZE_ENTRY (entry);
gtk_table_set_row_spacings (GTK_TABLE (entry), 2);
gtk_table_set_col_spacing (GTK_TABLE (entry), 0, 6);
gtk_table_set_col_spacing (GTK_TABLE (entry), 2, 6);
height = gimp_spin_button_new (&adj, 1, 1, 1, 1, 10, 0, 1, 2);
gimp_size_entry_add_field (GIMP_SIZE_ENTRY (entry),
GTK_SPIN_BUTTON (height), NULL);
gtk_table_attach_defaults (GTK_TABLE (entry), height, 1, 2, 0, 1);
gtk_widget_show (height);
gtk_size_group_add_widget (entry_group, height);
label = gimp_size_entry_attach_label (GIMP_SIZE_ENTRY (entry),
_("_X resolution:"), 0, 0, 0.0);
gtk_size_group_add_widget (label_group, label);
label = gimp_size_entry_attach_label (GIMP_SIZE_ENTRY (entry),
_("_Y resolution:"), 1, 0, 0.0);
gtk_size_group_add_widget (label_group, label);
gimp_size_entry_set_refval_boundaries (GIMP_SIZE_ENTRY (entry), 0,
GIMP_MIN_RESOLUTION,
GIMP_MAX_RESOLUTION);
gimp_size_entry_set_refval_boundaries (GIMP_SIZE_ENTRY (entry), 1,
GIMP_MIN_RESOLUTION,
GIMP_MAX_RESOLUTION);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (entry), 0, data->xres);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (entry), 1, data->yres);
chain = gimp_chain_button_new (GIMP_CHAIN_RIGHT);
gimp_chain_button_set_active (GIMP_CHAIN_BUTTON (chain), TRUE);
gtk_table_attach (GTK_TABLE (entry), chain, 2, 3, 0, 2,
GTK_SHRINK | GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 0);
gtk_widget_show (chain);
info.chain = GIMP_CHAIN_BUTTON (chain);
g_signal_connect (info.resolution_entry, "value-changed",
G_CALLBACK (print_size_info_resolution_changed),
NULL);
g_signal_connect (info.size_entry, "unit-changed",
G_CALLBACK (print_size_info_unit_changed),
NULL);
return frame;
}
