app: add a "custom" guide concept.
With gimp_guide_custom_new(), you can create a custom guide with a different style on canvas (other pattern/color/width). A custom guide won't be saved and could be used, for instance, for specific GEGL op guiding.
This commit is contained in:
Jehan
@ -20,9 +20,13 @@
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#include "config.h"
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#include <cairo.h>
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#include <gegl.h>
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#include <gdk-pixbuf/gdk-pixbuf.h>
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#include <gio/gio.h>
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#include "libgimpbase/gimpbase.h"
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#include "libgimpcolor/gimpcolor.h"
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#include "libgimpconfig/gimpconfig.h"
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#include "core-types.h"
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@ -41,7 +45,12 @@ enum
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PROP_0,
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PROP_ID,
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PROP_ORIENTATION,
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PROP_POSITION
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PROP_POSITION,
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PROP_NORMAL_FOREGROUND,
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PROP_NORMAL_BACKGROUND,
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PROP_ACTIVE_FOREGROUND,
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PROP_ACTIVE_BACKGROUND,
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PROP_LINE_WIDTH
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};
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@ -50,6 +59,13 @@ struct _GimpGuidePrivate
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guint32 guide_ID;
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GimpOrientationType orientation;
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gint position;
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GimpRGB normal_foreground;
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GimpRGB normal_background;
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GimpRGB active_foreground;
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GimpRGB active_background;
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gdouble line_width;
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gboolean custom;
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};
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@ -106,6 +122,33 @@ gimp_guide_class_init (GimpGuideClass *klass)
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GIMP_GUIDE_POSITION_UNDEFINED,
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0);
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g_object_class_install_property (object_class, PROP_NORMAL_FOREGROUND,
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g_param_spec_boxed ("normal-foreground", NULL, NULL,
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GIMP_TYPE_RGB,
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GIMP_PARAM_READWRITE |
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G_PARAM_CONSTRUCT_ONLY));
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g_object_class_install_property (object_class, PROP_NORMAL_BACKGROUND,
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g_param_spec_boxed ("normal-background", NULL, NULL,
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GIMP_TYPE_RGB,
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GIMP_PARAM_READWRITE |
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G_PARAM_CONSTRUCT_ONLY));
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g_object_class_install_property (object_class, PROP_ACTIVE_FOREGROUND,
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g_param_spec_boxed ("active-foreground", NULL, NULL,
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GIMP_TYPE_RGB,
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GIMP_PARAM_READWRITE |
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G_PARAM_CONSTRUCT_ONLY));
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g_object_class_install_property (object_class, PROP_ACTIVE_BACKGROUND,
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g_param_spec_boxed ("active-background", NULL, NULL,
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GIMP_TYPE_RGB,
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GIMP_PARAM_READWRITE |
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G_PARAM_CONSTRUCT_ONLY));
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g_object_class_install_property (object_class, PROP_LINE_WIDTH,
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g_param_spec_double ("line-width", NULL, NULL,
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0, GIMP_MAX_IMAGE_SIZE,
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1.0,
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GIMP_PARAM_READWRITE |
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G_PARAM_CONSTRUCT_ONLY));
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g_type_class_add_private (klass, sizeof (GimpGuidePrivate));
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}
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@ -135,6 +178,21 @@ gimp_guide_get_property (GObject *object,
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case PROP_POSITION:
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g_value_set_int (value, guide->priv->position);
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break;
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case PROP_NORMAL_FOREGROUND:
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g_value_set_boxed (value, &guide->priv->normal_foreground);
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break;
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case PROP_NORMAL_BACKGROUND:
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g_value_set_boxed (value, &guide->priv->normal_background);
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break;
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case PROP_ACTIVE_FOREGROUND:
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g_value_set_boxed (value, &guide->priv->active_foreground);
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break;
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case PROP_ACTIVE_BACKGROUND:
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g_value_set_boxed (value, &guide->priv->active_background);
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break;
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case PROP_LINE_WIDTH:
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g_value_set_double (value, guide->priv->line_width);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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break;
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@ -160,6 +218,39 @@ gimp_guide_set_property (GObject *object,
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case PROP_POSITION:
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guide->priv->position = g_value_get_int (value);
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break;
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case PROP_NORMAL_FOREGROUND:
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{
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GimpRGB *color = g_value_get_boxed (value);
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guide->priv->normal_foreground = *color;
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}
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break;
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case PROP_NORMAL_BACKGROUND:
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{
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GimpRGB *color = g_value_get_boxed (value);
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guide->priv->normal_background = *color;
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}
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break;
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case PROP_ACTIVE_FOREGROUND:
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{
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GimpRGB *color = g_value_get_boxed (value);
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guide->priv->active_foreground = *color;
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}
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break;
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case PROP_ACTIVE_BACKGROUND:
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{
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GimpRGB *color = g_value_get_boxed (value);
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guide->priv->active_background = *color;
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}
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break;
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case PROP_LINE_WIDTH:
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guide->priv->line_width = g_value_get_double (value);
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if (guide->priv->line_width != 1.0)
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guide->priv->custom = TRUE;
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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break;
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@ -170,12 +261,66 @@ GimpGuide *
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gimp_guide_new (GimpOrientationType orientation,
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guint32 guide_ID)
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{
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const GimpRGB normal_fg = { 0.0, 0.0, 0.0, 1.0 };
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const GimpRGB normal_bg = { 0.0, 0.5, 1.0, 1.0 };
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const GimpRGB active_fg = { 0.0, 0.0, 0.0, 1.0 };
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const GimpRGB active_bg = { 1.0, 0.0, 0.0, 1.0 };
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return g_object_new (GIMP_TYPE_GUIDE,
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"id", guide_ID,
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"orientation", orientation,
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"id", guide_ID,
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"orientation", orientation,
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"normal-foreground", &normal_fg,
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"normal-background", &normal_bg,
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"active-foreground", &active_fg,
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"active-background", &active_bg,
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"line-width", 1.0,
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NULL);
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}
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/**
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* gimp_guide_custom_new:
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* @orientation: the #GimpOrientationType
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* @guide_ID: the unique guide ID
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* @normal_foreground: foreground color for normal state
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* @normal_background: background color for normal state
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* @active_foreground: foreground color for active state
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* @active_background: background color for active state
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* @line_width: the width of the guide line
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*
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* This function returns a new guide and will flag it as "custom".
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* Custom guides are used for purpose "other" than the basic guides
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* a user can create oneself, for instance as symmetry guides, to
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* drive GEGL ops, etc.
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* They are not saved in the XCF file. If an op, a symmetry or a plugin
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* wishes to save its state, it has to do it internally.
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*
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* Returns: the custom #GimpGuide.
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**/
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GimpGuide *
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gimp_guide_custom_new (GimpOrientationType orientation,
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guint32 guide_ID,
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GimpRGB *normal_foreground,
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GimpRGB *normal_background,
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GimpRGB *active_foreground,
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GimpRGB *active_background,
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gdouble line_width)
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{
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GimpGuide *guide;
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guide = g_object_new (GIMP_TYPE_GUIDE,
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"id", guide_ID,
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"orientation", orientation,
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"normal-foreground", normal_foreground,
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"normal-background", normal_background,
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"active-foreground", active_foreground,
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"active-background", active_background,
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"line-width", line_width,
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NULL);
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guide->priv->custom = TRUE;
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return guide;
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}
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guint32
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gimp_guide_get_ID (GimpGuide *guide)
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{
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@ -229,3 +374,33 @@ gimp_guide_removed (GimpGuide *guide)
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g_signal_emit (guide, gimp_guide_signals[REMOVED], 0);
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}
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void
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gimp_guide_get_normal_style (GimpGuide *guide,
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GimpRGB *foreground,
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GimpRGB *background)
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{
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*foreground = guide->priv->normal_foreground;
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*background = guide->priv->normal_background;
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}
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void
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gimp_guide_get_active_style (GimpGuide *guide,
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GimpRGB *foreground,
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GimpRGB *background)
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{
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*foreground = guide->priv->active_foreground;
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*background = guide->priv->active_background;
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}
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gdouble
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gimp_guide_get_line_width (GimpGuide *guide)
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{
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return guide->priv->line_width;
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}
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gboolean
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gimp_guide_is_custom (GimpGuide *guide)
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{
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return guide->priv->custom;
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}
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