static void
select_grow_callback (GtkWidget *widget,
gdouble size,
GimpUnit unit,
gpointer data)
{
GimpImage *image = GIMP_IMAGE (data);
gdouble radius_x;
gdouble radius_y;
radius_x = radius_y = select_grow_pixels = ROUND (size);
if (unit != GIMP_UNIT_PIXEL)
{
gdouble xres;
gdouble yres;
gdouble factor;
gimp_image_get_resolution (image, &xres, &yres);
factor = (MAX (xres, yres) /
MIN (xres, yres));
if (xres == MIN (xres, yres))
radius_y *= factor;
else
radius_x *= factor;
}
gimp_channel_grow (gimp_image_get_mask (image), radius_x, radius_y, TRUE);
gimp_image_flush (image);
}
/**
* gimp_display_shell_scale_fill:
* @shell: the #GimpDisplayShell
*
* Sets the scale such that the entire display area is precisely
* filled by the image.
**/
void
gimp_display_shell_scale_fill (GimpDisplayShell *shell)
{
GimpImage *image;
gint image_width;
gint image_height;
gdouble xres;
gdouble yres;
gdouble zoom_factor;
g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
image = gimp_display_get_image (shell->display);
image_width = gimp_image_get_width (image);
image_height = gimp_image_get_height (image);
gimp_image_get_resolution (image, &xres, &yres);
if (! shell->dot_for_dot)
{
image_width = ROUND (image_width * shell->monitor_xres / xres);
image_height = ROUND (image_height * shell->monitor_yres / yres);
}
zoom_factor = MAX ((gdouble) shell->disp_width / (gdouble) image_width,
(gdouble) shell->disp_height / (gdouble) image_height);
gimp_display_shell_scale (shell,
GIMP_ZOOM_TO,
zoom_factor,
GIMP_ZOOM_FOCUS_BEST_GUESS);
gimp_display_shell_scroll_center_image (shell, TRUE, TRUE);
}
void
gimp_image_get_preview_size (GimpViewable *viewable,
gint size,
gboolean is_popup,
gboolean dot_for_dot,
gint *width,
gint *height)
{
GimpImage *image = GIMP_IMAGE (viewable);
gdouble xres;
gdouble yres;
gimp_image_get_resolution (image, &xres, &yres);
gimp_viewable_calc_preview_size (gimp_image_get_width (image),
gimp_image_get_height (image),
size,
size,
dot_for_dot,
xres,
yres,
width,
height,
NULL);
}
static void
image_scale_callback (GtkWidget *dialog,
GimpViewable *viewable,
gint width,
gint height,
GimpUnit unit,
GimpInterpolationType interpolation,
gdouble xresolution,
gdouble yresolution,
GimpUnit resolution_unit,
gpointer user_data)
{
GimpImage *image = GIMP_IMAGE (viewable);
gdouble xres;
gdouble yres;
image_scale_unit = unit;
image_scale_interp = interpolation;
gimp_image_get_resolution (image, &xres, &yres);
if (width > 0 && height > 0)
{
if (width == gimp_image_get_width (image) &&
height == gimp_image_get_height (image) &&
xresolution == xres &&
yresolution == yres &&
resolution_unit == gimp_image_get_unit (image))
return;
gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_IMAGE_SCALE,
_("Scale Image"));
gimp_image_set_resolution (image, xresolution, yresolution);
gimp_image_set_unit (image, resolution_unit);
if (width != gimp_image_get_width (image) ||
height != gimp_image_get_height (image))
{
GimpProgress *progress;
progress = gimp_progress_start (GIMP_PROGRESS (user_data),
_("Scaling"), FALSE);
gimp_image_scale (image, width, height, interpolation, progress);
if (progress)
gimp_progress_end (progress);
}
gimp_image_undo_group_end (image);
gimp_image_flush (image);
}
else
{
g_warning ("Scale Error: "
"Both width and height must be greater than zero.");
}
}
void
select_grow_cmd_callback (GtkAction *action,
gpointer data)
{
GimpDisplay *display;
GimpImage *image;
GtkWidget *dialog;
gdouble xres;
gdouble yres;
return_if_no_display (display, data);
image = gimp_display_get_image (display);
gimp_image_get_resolution (image, &xres, &yres);
dialog = gimp_query_size_box (_("Grow Selection"),
GTK_WIDGET (gimp_display_get_shell (display)),
gimp_standard_help_func,
GIMP_HELP_SELECTION_GROW,
_("Grow selection by"),
select_grow_pixels, 1, 32767, 0,
gimp_display_get_shell (display)->unit,
MIN (xres, yres),
FALSE,
G_OBJECT (image), "disconnect",
select_grow_callback, image);
gtk_widget_show (dialog);
}
static void
image_print_size_callback (GtkWidget *dialog,
GimpImage *image,
gdouble xresolution,
gdouble yresolution,
GimpUnit resolution_unit,
gpointer data)
{
gdouble xres;
gdouble yres;
gtk_widget_destroy (dialog);
gimp_image_get_resolution (image, &xres, &yres);
if (xresolution == xres &&
yresolution == yres &&
resolution_unit == gimp_image_get_unit (image))
return;
gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_IMAGE_SCALE,
_("Change Print Size"));
gimp_image_set_resolution (image, xresolution, yresolution);
gimp_image_set_unit (image, resolution_unit);
gimp_image_undo_group_end (image);
gimp_image_flush (image);
}
void
gimp_display_shell_get_constrained_line_params (GimpDisplayShell *shell,
gdouble *offset_angle,
gdouble *xres,
gdouble *yres)
{
g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
g_return_if_fail (offset_angle != NULL);
g_return_if_fail (xres != NULL);
g_return_if_fail (yres != NULL);
if (shell->flip_horizontally ^ shell->flip_vertically)
*offset_angle = +shell->rotate_angle;
else
*offset_angle = -shell->rotate_angle;
*xres = 1.0;
*yres = 1.0;
if (! shell->dot_for_dot)
{
GimpImage *image = gimp_display_get_image (shell->display);
if (image)
gimp_image_get_resolution (image, xres, yres);
}
}
/* ============================================================================
* gap_image_new_with_layer_of_samesize
* ============================================================================
* create empty image
* if layer_id is NOT NULL then create one full transparent layer at full image size
* and return the layer_id
*/
gint32
gap_image_new_with_layer_of_samesize(gint32 old_image_id, gint32 *layer_id)
{
GimpImageBaseType l_type;
guint l_width;
guint l_height;
gint32 new_image_id;
gdouble l_xresoulution, l_yresoulution;
gint32 l_unit;
/* create empty image */
l_width = gimp_image_width(old_image_id);
l_height = gimp_image_height(old_image_id);
l_type = gimp_image_base_type(old_image_id);
l_unit = gimp_image_get_unit(old_image_id);
gimp_image_get_resolution(old_image_id, &l_xresoulution, &l_yresoulution);
new_image_id = gimp_image_new(l_width, l_height,l_type);
gimp_image_set_resolution(new_image_id, l_xresoulution, l_yresoulution);
gimp_image_set_unit(new_image_id, l_unit);
if(layer_id)
{
l_type = (l_type * 2); /* convert from GimpImageBaseType to GimpImageType */
*layer_id = gimp_layer_new(new_image_id, "dummy",
l_width, l_height, l_type,
0.0, /* Opacity full transparent */
0); /* NORMAL */
gimp_image_insert_layer(new_image_id, *layer_id, 0, 0);
}
return (new_image_id);
} /* end gap_image_new_with_layer_of_samesize */
static gboolean
windows_menu_display_query_tooltip (GtkWidget *widget,
gint x,
gint y,
gboolean keyboard_mode,
GtkTooltip *tooltip,
GimpAction *action)
{
GimpImage *image = GIMP_IMAGE (action->viewable);
gchar *text;
gdouble xres;
gdouble yres;
gint width;
gint height;
text = gtk_widget_get_tooltip_text (widget);
gtk_tooltip_set_text (tooltip, text);
g_free (text);
gimp_image_get_resolution (image, &xres, &yres);
gimp_viewable_calc_preview_size (gimp_image_get_width (image),
gimp_image_get_height (image),
GIMP_VIEW_SIZE_HUGE, GIMP_VIEW_SIZE_HUGE,
FALSE, xres, yres,
&width, &height, NULL);
gtk_tooltip_set_icon (tooltip,
gimp_viewable_get_pixbuf (action->viewable,
action->context,
width, height));
return TRUE;
}
void
gimp_text_tool_editor_position (GimpTextTool *text_tool)
{
if (text_tool->style_overlay)
{
GimpTool *tool = GIMP_TOOL (text_tool);
GimpDisplayShell *shell = gimp_display_get_shell (tool->display);
GtkRequisition requisition;
gint x, y;
gtk_widget_size_request (text_tool->style_overlay, &requisition);
g_object_get (text_tool,
"x1", &x,
"y1", &y,
NULL);
gimp_display_shell_move_overlay (shell,
text_tool->style_overlay,
x, y,
GIMP_HANDLE_ANCHOR_SOUTH_WEST, 4, 12);
if (text_tool->image)
{
gdouble xres, yres;
gimp_image_get_resolution (text_tool->image, &xres, &yres);
g_object_set (text_tool->style_editor,
"resolution-x", xres,
"resolution-y", yres,
NULL);
}
}
}
static void
gimp_image_undo_constructed (GObject *object)
{
GimpImageUndo *image_undo = GIMP_IMAGE_UNDO (object);
GimpImage *image;
G_OBJECT_CLASS (parent_class)->constructed (object);
image = GIMP_UNDO (object)->image;
switch (GIMP_UNDO (object)->undo_type)
{
case GIMP_UNDO_IMAGE_TYPE:
image_undo->base_type = gimp_image_get_base_type (image);
break;
case GIMP_UNDO_IMAGE_PRECISION:
image_undo->precision = gimp_image_get_precision (image);
break;
case GIMP_UNDO_IMAGE_SIZE:
image_undo->width = gimp_image_get_width (image);
image_undo->height = gimp_image_get_height (image);
break;
case GIMP_UNDO_IMAGE_RESOLUTION:
gimp_image_get_resolution (image,
&image_undo->xresolution,
&image_undo->yresolution);
image_undo->resolution_unit = gimp_image_get_unit (image);
break;
case GIMP_UNDO_IMAGE_GRID:
g_assert (GIMP_IS_GRID (image_undo->grid));
break;
case GIMP_UNDO_IMAGE_COLORMAP:
image_undo->num_colors = gimp_image_get_colormap_size (image);
image_undo->colormap = g_memdup (gimp_image_get_colormap (image),
GIMP_IMAGE_COLORMAP_SIZE);
break;
case GIMP_UNDO_IMAGE_METADATA:
image_undo->metadata =
gimp_metadata_duplicate (gimp_image_get_metadata (image));
break;
case GIMP_UNDO_PARASITE_ATTACH:
case GIMP_UNDO_PARASITE_REMOVE:
g_assert (image_undo->parasite_name != NULL);
image_undo->parasite = gimp_parasite_copy
(gimp_image_parasite_find (image, image_undo->parasite_name));
break;
default:
g_assert_not_reached ();
}
}
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_image_duplicate_resolution (GimpImage *image,
GimpImage *new_image)
{
gdouble xres;
gdouble yres;
gimp_image_get_resolution (image, &xres, &yres);
gimp_image_set_resolution (new_image, xres, yres);
gimp_image_set_unit (new_image, gimp_image_get_unit (image));
}
void
select_border_cmd_callback (GtkAction *action,
gpointer data)
{
GimpDisplay *display;
GimpImage *image;
GtkWidget *dialog;
GtkWidget *button;
gdouble xres;
gdouble yres;
return_if_no_display (display, data);
image = gimp_display_get_image (display);
gimp_image_get_resolution (image, &xres, &yres);
dialog = gimp_query_size_box (_("Border Selection"),
GTK_WIDGET (gimp_display_get_shell (display)),
gimp_standard_help_func,
GIMP_HELP_SELECTION_BORDER,
_("Border selection by"),
select_border_radius, 1, 32767, 0,
gimp_display_get_shell (display)->unit,
MIN (xres, yres),
FALSE,
G_OBJECT (image), "disconnect",
select_border_callback, image);
/* Feather button */
button = gtk_check_button_new_with_mnemonic (_("_Feather border"));
gtk_box_pack_start (GTK_BOX (GIMP_QUERY_BOX_VBOX (dialog)), button,
FALSE, FALSE, 0);
g_object_set_data (G_OBJECT (dialog), "border-feather-toggle", button);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (button),
select_border_feather);
gtk_widget_show (button);
/* Edge lock button */
button = gtk_check_button_new_with_mnemonic (_("_Selected areas continue outside the image"));
g_object_set_data (G_OBJECT (dialog), "edge-lock-toggle", button);
gimp_help_set_help_data (button,
_("When bordering, act as if selected areas "
"continued outside the image."),
NULL);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (button),
select_border_edge_lock);
gtk_box_pack_start (GTK_BOX (GIMP_QUERY_BOX_VBOX (dialog)), button,
FALSE, FALSE, 0);
gtk_widget_show (button);
gtk_widget_show (dialog);
}
void
gimp_text_tool_editor_start (GimpTextTool *text_tool)
{
GimpTool *tool = GIMP_TOOL (text_tool);
GimpTextOptions *options = GIMP_TEXT_TOOL_GET_OPTIONS (text_tool);
GimpDisplayShell *shell = gimp_display_get_shell (tool->display);
gtk_im_context_set_client_window (text_tool->im_context,
gtk_widget_get_window (shell->canvas));
text_tool->needs_im_reset = TRUE;
gimp_text_tool_reset_im_context (text_tool);
gtk_im_context_focus_in (text_tool->im_context);
if (options->use_editor)
gimp_text_tool_editor_dialog (text_tool);
g_signal_connect (options, "notify::use-editor",
G_CALLBACK (gimp_text_tool_options_notify),
text_tool);
if (! text_tool->style_overlay)
{
Gimp *gimp = GIMP_CONTEXT (options)->gimp;
gdouble xres = 1.0;
gdouble yres = 1.0;
text_tool->style_overlay = gimp_overlay_frame_new ();
gtk_container_set_border_width (GTK_CONTAINER (text_tool->style_overlay),
4);
gimp_display_shell_add_overlay (shell,
text_tool->style_overlay,
0, 0,
GIMP_HANDLE_ANCHOR_CENTER, 0, 0);
gimp_overlay_box_set_child_opacity (GIMP_OVERLAY_BOX (shell->canvas),
text_tool->style_overlay, 0.7);
if (text_tool->image)
gimp_image_get_resolution (text_tool->image, &xres, &yres);
text_tool->style_editor = gimp_text_style_editor_new (gimp,
text_tool->proxy,
text_tool->buffer,
gimp->fonts,
xres, yres);
gtk_container_add (GTK_CONTAINER (text_tool->style_overlay),
text_tool->style_editor);
gtk_widget_show (text_tool->style_editor);
}
gimp_text_tool_editor_position (text_tool);
gtk_widget_show (text_tool->style_overlay);
}
static GimpBuffer *
gimp_edit_extract (GimpImage *image,
GimpPickable *pickable,
GimpContext *context,
gboolean cut_pixels,
GError **error)
{
GeglBuffer *buffer;
gint offset_x;
gint offset_y;
if (cut_pixels)
gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_EDIT_CUT,
C_("undo-type", "Cut"));
/* Cut/copy the mask portion from the image */
buffer = gimp_selection_extract (GIMP_SELECTION (gimp_image_get_mask (image)),
pickable, context,
cut_pixels, FALSE,
&offset_x, &offset_y, error);
if (cut_pixels)
gimp_image_undo_group_end (image);
if (buffer)
{
GimpBuffer *gimp_buffer;
gdouble res_x;
gdouble res_y;
gimp_buffer = gimp_buffer_new (buffer, _("Global Buffer"),
offset_x, offset_y, FALSE);
g_object_unref (buffer);
gimp_image_get_resolution (image, &res_x, &res_y);
gimp_buffer_set_resolution (gimp_buffer, res_x, res_y);
gimp_buffer_set_unit (gimp_buffer, gimp_image_get_unit (image));
if (GIMP_IS_COLOR_MANAGED (pickable))
{
GimpColorProfile *profile =
gimp_color_managed_get_color_profile (GIMP_COLOR_MANAGED (pickable));
if (profile)
gimp_buffer_set_color_profile (gimp_buffer, profile);
}
return gimp_buffer;
}
return NULL;
}
static void
gimp_rotate_tool_prepare (GimpTransformTool *tr_tool)
{
GimpRotateTool *rotate = GIMP_ROTATE_TOOL (tr_tool);
GimpDisplay *display = GIMP_TOOL (tr_tool)->display;
GimpImage *image = gimp_display_get_image (display);
gdouble xres;
gdouble yres;
tr_tool->px = (gdouble) (tr_tool->x1 + tr_tool->x2) / 2.0;
tr_tool->py = (gdouble) (tr_tool->y1 + tr_tool->y2) / 2.0;
tr_tool->trans_info[ANGLE] = 0.0;
tr_tool->trans_info[REAL_ANGLE] = 0.0;
tr_tool->trans_info[PIVOT_X] = tr_tool->px;
tr_tool->trans_info[PIVOT_Y] = tr_tool->py;
gimp_image_get_resolution (image, &xres, &yres);
g_signal_handlers_block_by_func (rotate->sizeentry,
rotate_center_changed,
tr_tool);
gimp_size_entry_set_unit (GIMP_SIZE_ENTRY (rotate->sizeentry),
gimp_display_get_shell (display)->unit);
gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (rotate->sizeentry), 0,
xres, FALSE);
gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (rotate->sizeentry), 1,
yres, FALSE);
gimp_size_entry_set_refval_boundaries (GIMP_SIZE_ENTRY (rotate->sizeentry), 0,
-65536,
65536 +
gimp_image_get_width (image));
gimp_size_entry_set_refval_boundaries (GIMP_SIZE_ENTRY (rotate->sizeentry), 1,
-65536,
65536 +
gimp_image_get_height (image));
gimp_size_entry_set_size (GIMP_SIZE_ENTRY (rotate->sizeentry), 0,
tr_tool->x1, tr_tool->x2);
gimp_size_entry_set_size (GIMP_SIZE_ENTRY (rotate->sizeentry), 1,
tr_tool->y1, tr_tool->y2);
g_signal_handlers_unblock_by_func (rotate->sizeentry,
rotate_center_changed,
tr_tool);
}
static void
gimp_text_tool_editor_dialog (GimpTextTool *text_tool)
{
GimpTool *tool = GIMP_TOOL (text_tool);
GimpTextOptions *options = GIMP_TEXT_TOOL_GET_OPTIONS (text_tool);
GimpDialogFactory *dialog_factory;
GtkWindow *parent = NULL;
gdouble xres = 1.0;
gdouble yres = 1.0;
if (text_tool->editor_dialog)
{
gtk_window_present (GTK_WINDOW (text_tool->editor_dialog));
return;
}
dialog_factory = gimp_dialog_factory_get_singleton ();
if (tool->display)
{
GimpDisplayShell *shell = gimp_display_get_shell (tool->display);
parent = GTK_WINDOW (gtk_widget_get_toplevel (GTK_WIDGET (shell)));
}
if (text_tool->image)
gimp_image_get_resolution (text_tool->image, &xres, &yres);
text_tool->editor_dialog =
gimp_text_options_editor_new (parent, tool->tool_info->gimp, options,
gimp_dialog_factory_get_menu_factory (dialog_factory),
_("GIMP Text Editor"),
text_tool->proxy, text_tool->buffer,
xres, yres);
g_object_add_weak_pointer (G_OBJECT (text_tool->editor_dialog),
(gpointer) &text_tool->editor_dialog);
gimp_dialog_factory_add_foreign (dialog_factory,
"gimp-text-tool-dialog",
text_tool->editor_dialog);
g_signal_connect (text_tool->editor_dialog, "destroy",
G_CALLBACK (gimp_text_tool_editor_destroy),
text_tool);
gtk_widget_show (text_tool->editor_dialog);
}
void
gimp_item_get_preview_size (GimpViewable *viewable,
gint size,
gboolean is_popup,
gboolean dot_for_dot,
gint *width,
gint *height)
{
GimpItem *item = GIMP_ITEM (viewable);
GimpImage *image = gimp_item_get_image (item);
if (image && ! image->gimp->config->layer_previews && ! is_popup)
{
*width = size;
*height = size;
return;
}
if (image && ! is_popup)
{
gdouble xres;
gdouble yres;
gimp_image_get_resolution (image, &xres, &yres);
gimp_viewable_calc_preview_size (gimp_image_get_width (image),
gimp_image_get_height (image),
size,
size,
dot_for_dot,
xres,
yres,
width,
height,
NULL);
}
else
{
gimp_viewable_calc_preview_size (gimp_item_get_width (item),
gimp_item_get_height (item),
size,
size,
dot_for_dot, 1.0, 1.0,
width,
height,
NULL);
}
}
gboolean
gimp_item_get_popup_size (GimpViewable *viewable,
gint width,
gint height,
gboolean dot_for_dot,
gint *popup_width,
gint *popup_height)
{
GimpItem *item = GIMP_ITEM (viewable);
GimpImage *image = gimp_item_get_image (item);
if (image && ! image->gimp->config->layer_previews)
return FALSE;
if (gimp_item_get_width (item) > width ||
gimp_item_get_height (item) > height)
{
gboolean scaling_up;
gdouble xres = 1.0;
gdouble yres = 1.0;
if (image)
gimp_image_get_resolution (image, &xres, &yres);
gimp_viewable_calc_preview_size (gimp_item_get_width (item),
gimp_item_get_height (item),
width * 2,
height * 2,
dot_for_dot,
xres,
yres,
popup_width,
popup_height,
&scaling_up);
if (scaling_up)
{
*popup_width = gimp_item_get_width (item);
*popup_height = gimp_item_get_height (item);
}
return TRUE;
}
return FALSE;
}
void
gimp_drawable_stroke_scan_convert (GimpDrawable *drawable,
GimpStrokeOptions *options,
GimpScanConvert *scan_convert,
gboolean push_undo)
{
gdouble width;
GimpUnit unit;
g_return_if_fail (GIMP_IS_DRAWABLE (drawable));
g_return_if_fail (gimp_item_is_attached (GIMP_ITEM (drawable)));
g_return_if_fail (GIMP_IS_STROKE_OPTIONS (options));
g_return_if_fail (scan_convert != NULL);
g_return_if_fail (gimp_fill_options_get_style (GIMP_FILL_OPTIONS (options)) !=
GIMP_FILL_STYLE_PATTERN ||
gimp_context_get_pattern (GIMP_CONTEXT (options)) != NULL);
if (! gimp_item_mask_intersect (GIMP_ITEM (drawable), NULL, NULL, NULL, NULL))
return;
width = gimp_stroke_options_get_width (options);
unit = gimp_stroke_options_get_unit (options);
if (unit != GIMP_UNIT_PIXEL)
{
GimpImage *image = gimp_item_get_image (GIMP_ITEM (drawable));
gdouble xres;
gdouble yres;
gimp_image_get_resolution (image, &xres, &yres);
gimp_scan_convert_set_pixel_ratio (scan_convert, yres / xres);
width = gimp_units_to_pixels (width, unit, yres);
}
gimp_scan_convert_stroke (scan_convert, width,
gimp_stroke_options_get_join_style (options),
gimp_stroke_options_get_cap_style (options),
gimp_stroke_options_get_miter_limit (options),
gimp_stroke_options_get_dash_offset (options),
gimp_stroke_options_get_dash_info (options));
gimp_drawable_fill_scan_convert (drawable, GIMP_FILL_OPTIONS (options),
scan_convert, push_undo);
}
static void
gimp_scale_tool_prepare (GimpTransformTool *tr_tool)
{
GimpScaleTool *scale = GIMP_SCALE_TOOL (tr_tool);
GimpTransformOptions *options = GIMP_TRANSFORM_TOOL_GET_OPTIONS (tr_tool);
GimpDisplay *display = GIMP_TOOL (tr_tool)->display;
gdouble xres;
gdouble yres;
tr_tool->trans_info[X0] = (gdouble) tr_tool->x1;
tr_tool->trans_info[Y0] = (gdouble) tr_tool->y1;
tr_tool->trans_info[X1] = (gdouble) tr_tool->x2;
tr_tool->trans_info[Y1] = (gdouble) tr_tool->y2;
gimp_image_get_resolution (gimp_display_get_image (display),
&xres, &yres);
if (scale->box)
{
g_signal_handlers_disconnect_by_func (scale->box,
gimp_scale_tool_size_notify,
tr_tool);
gtk_widget_destroy (scale->box);
}
/* Need to create a new GimpSizeBox widget because the initial
* width and height is what counts as 100%.
*/
scale->box =
g_object_new (GIMP_TYPE_SIZE_BOX,
"width", tr_tool->x2 - tr_tool->x1,
"height", tr_tool->y2 - tr_tool->y1,
"keep-aspect", options->constrain_scale,
"unit", gimp_display_get_shell (display)->unit,
"xresolution", xres,
"yresolution", yres,
NULL);
gtk_box_pack_start (GTK_BOX (gimp_tool_gui_get_vbox (tr_tool->gui)),
scale->box, FALSE, FALSE, 0);
gtk_widget_show (scale->box);
g_signal_connect (scale->box, "notify",
G_CALLBACK (gimp_scale_tool_size_notify),
tr_tool);
}
static gboolean
jpeg_load_resolution (gint32 image_ID,
struct jpeg_decompress_struct *cinfo)
{
if (cinfo->saw_JFIF_marker && cinfo->X_density != 0 && cinfo->Y_density != 0)
{
gdouble xresolution = cinfo->X_density;
gdouble yresolution = cinfo->Y_density;
gdouble asymmetry = 1.0;
switch (cinfo->density_unit)
{
case 0: /* unknown -> set the aspect ratio but use the default
* image resolution
*/
asymmetry = xresolution / yresolution;
gimp_image_get_resolution (image_ID, &xresolution, &yresolution);
xresolution *= asymmetry;
break;
case 1: /* dots per inch */
break;
case 2: /* dots per cm */
xresolution *= 2.54;
yresolution *= 2.54;
gimp_image_set_unit (image_ID, GIMP_UNIT_MM);
break;
default:
g_message ("Unknown density unit %d, assuming dots per inch.",
cinfo->density_unit);
break;
}
gimp_image_set_resolution (image_ID, xresolution, yresolution);
return TRUE;
}
return FALSE;
}
/**
* gimp_display_shell_calculate_scale_x_and_y:
* @shell:
* @scale:
* @scale_x:
* @scale_y:
*
**/
static void
gimp_display_shell_calculate_scale_x_and_y (GimpDisplayShell *shell,
gdouble scale,
gdouble *scale_x,
gdouble *scale_y)
{
GimpImage *image = gimp_display_get_image (shell->display);
gdouble xres;
gdouble yres;
gdouble screen_xres;
gdouble screen_yres;
gimp_image_get_resolution (image, &xres, &yres);
gimp_display_shell_scale_get_screen_resolution (shell,
&screen_xres, &screen_yres);
if (scale_x) *scale_x = scale * screen_xres / xres;
if (scale_y) *scale_y = scale * screen_yres / yres;
}
static void
select_border_callback (GtkWidget *widget,
gdouble size,
GimpUnit unit,
gpointer data)
{
GimpImage *image = GIMP_IMAGE (data);
GtkWidget *feather_button = g_object_get_data (G_OBJECT (widget),
"border-feather-toggle");
GtkWidget *edge_lock_button = g_object_get_data (G_OBJECT (widget),
"edge-lock-toggle");
gdouble radius_x;
gdouble radius_y;
radius_x = radius_y = select_border_radius = ROUND (size);
select_border_feather =
gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (feather_button));
select_border_edge_lock =
gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (edge_lock_button));
if (unit != GIMP_UNIT_PIXEL)
{
gdouble xres;
gdouble yres;
gdouble factor;
gimp_image_get_resolution (image, &xres, &yres);
factor = (MAX (xres, yres) /
MIN (xres, yres));
if (xres == MIN (xres, yres))
radius_y *= factor;
else
radius_x *= factor;
}
gimp_channel_border (gimp_image_get_mask (image), radius_x, radius_y,
select_border_feather, select_border_edge_lock, TRUE);
gimp_image_flush (image);
}
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 (image->gimp, unit));
g_ascii_formatd (hbuf, sizeof (hbuf),
"%g", h * _gimp_unit_get_factor (image->gimp, unit));
g_string_append_printf (str,
"width=\"%s%s\" height=\"%s%s\"",
wbuf, abbrev, hbuf, abbrev);
}
static void
gimp_display_shell_scale_get_screen_resolution (GimpDisplayShell *shell,
gdouble *xres,
gdouble *yres)
{
gdouble x, y;
if (shell->dot_for_dot)
{
gimp_image_get_resolution (gimp_display_get_image (shell->display),
&x, &y);
}
else
{
x = shell->monitor_xres;
y = shell->monitor_yres;
}
if (xres) *xres = x;
if (yres) *yres = y;
}
void
gimp_display_shell_get_screen_resolution (GimpDisplayShell *shell,
gdouble *xres,
gdouble *yres)
{
gdouble x, y;
g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
if (shell->dot_for_dot)
{
gimp_image_get_resolution (gimp_display_get_image (shell->display),
&x, &y);
}
else
{
x = shell->monitor_xres;
y = shell->monitor_yres;
}
if (xres) *xres = x;
if (yres) *yres = y;
}
/**
* gimp_display_shell_calculate_scale_x_and_y:
* @shell:
* @scale:
* @scale_x:
* @scale_y:
*
**/
void
gimp_display_shell_calculate_scale_x_and_y (GimpDisplayShell *shell,
gdouble scale,
gdouble *scale_x,
gdouble *scale_y)
{
GimpImage *image;
gdouble xres;
gdouble yres;
gdouble screen_xres;
gdouble screen_yres;
g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
image = gimp_display_get_image (shell->display);
g_return_if_fail (GIMP_IS_IMAGE (image));
gimp_image_get_resolution (image, &xres, &yres);
gimp_display_shell_get_screen_resolution (shell, &screen_xres, &screen_yres);
if (scale_x) *scale_x = scale * screen_xres / xres;
if (scale_y) *scale_y = scale * screen_yres / yres;
}
static gboolean
pixelize_dialog (GimpDrawable *drawable)
{
GtkWidget *dialog;
GtkWidget *main_vbox;
GtkWidget *preview;
GtkWidget *sizeentry;
guint32 image_id;
GimpUnit unit;
gdouble xres, yres;
gboolean run;
gimp_ui_init (PLUG_IN_BINARY, FALSE);
dialog = gimp_dialog_new (_("Pixelize"), PLUG_IN_BINARY,
NULL, 0,
gimp_standard_help_func, PIXELIZE_PROC,
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
GTK_STOCK_OK, GTK_RESPONSE_OK,
NULL);
gtk_dialog_set_alternative_button_order (GTK_DIALOG (dialog),
GTK_RESPONSE_OK,
GTK_RESPONSE_CANCEL,
-1);
gimp_window_set_transient (GTK_WINDOW (dialog));
main_vbox = gtk_vbox_new (FALSE, 12);
gtk_container_set_border_width (GTK_CONTAINER (main_vbox), 12);
gtk_container_add (GTK_CONTAINER (GTK_DIALOG (dialog)->vbox), main_vbox);
gtk_widget_show (main_vbox);
preview = gimp_drawable_preview_new (drawable, NULL);
gtk_box_pack_start_defaults (GTK_BOX (main_vbox), preview);
gtk_widget_show (preview);
g_signal_connect_swapped (preview, "invalidated",
G_CALLBACK (pixelize),
drawable);
image_id = gimp_drawable_get_image (drawable->drawable_id);
unit = gimp_image_get_unit (image_id);
gimp_image_get_resolution (image_id, &xres, &yres);
sizeentry = gimp_coordinates_new (unit, "%a", TRUE, TRUE, ENTRY_WIDTH,
GIMP_SIZE_ENTRY_UPDATE_SIZE,
TRUE, FALSE,
_("Pixel _width:"),
pvals.pixelwidth, xres,
1, drawable->width,
1, drawable->width,
_("Pixel _height:"),
pvals.pixelheight, yres,
1, drawable->height,
1, drawable->height);
gtk_box_pack_start (GTK_BOX (main_vbox), sizeentry, FALSE, FALSE, 0);
gtk_widget_show (sizeentry);
g_signal_connect (sizeentry, "value-changed",
G_CALLBACK (update_pixelsize),
preview);
g_signal_connect (sizeentry, "refval-changed",
G_CALLBACK (update_pixelsize),
preview);
gtk_widget_show (dialog);
run = (gimp_dialog_run (GIMP_DIALOG (dialog)) == GTK_RESPONSE_OK);
gtk_widget_destroy (dialog);
return run;
}
