path: root/src/widgets/paint-selector.cpp

#define __SP_PAINT_SELECTOR_C__

/** \file
 * SPPaintSelector: Generic paint selector widget.
 */

/*
 * Copyright (C) Lauris Kaplinski 2002
 *   bulia byak <buliabyak@users.sf.net>
*/

#define noSP_PS_VERBOSE

#ifdef HAVE_CONFIG_H
# include "config.h"
#endif



#include <gtk/gtkhbox.h>
#include <gtk/gtkradiobutton.h>
#include <gtk/gtkframe.h>
#include <gtk/gtklabel.h>
#include <gtk/gtkoptionmenu.h>
#include <gtk/gtktooltips.h>
#include <gtk/gtkmenuitem.h>

#include "../sp-pattern.h"
#include <glibmm/i18n.h>
#include "../widgets/icon.h"
#include "../inkscape-stock.h"
#include "widgets/widget-sizes.h"
#include "xml/repr.h"

#include "sp-color-notebook.h"
#include "sp-linear-gradient-fns.h"
#include "sp-radial-gradient-fns.h"
/* fixme: Move it from dialogs to here */
#include "gradient-selector.h"
#include <inkscape.h>
#include <document-private.h>
#include <desktop-style.h>
#include <style.h>
#include "svg/svg-color.h"
#include "svg/css-ostringstream.h"

#include "paint-selector.h"

enum {
    MODE_CHANGED,
    GRABBED,
    DRAGGED,
    RELEASED,
    CHANGED,
    FILLRULE_CHANGED,
    LAST_SIGNAL
};

static void sp_paint_selector_class_init(SPPaintSelectorClass *klass);
static void sp_paint_selector_init(SPPaintSelector *slider);
static void sp_paint_selector_destroy(GtkObject *object);

static GtkWidget *sp_paint_selector_style_button_add(SPPaintSelector *psel, gchar const *px, SPPaintSelectorMode mode, GtkTooltips *tt, gchar const *tip);
static void sp_paint_selector_style_button_toggled(GtkToggleButton *tb, SPPaintSelector *psel);
static void sp_paint_selector_fillrule_toggled(GtkToggleButton *tb, SPPaintSelector *psel);

static void sp_paint_selector_set_mode_empty(SPPaintSelector *psel);
static void sp_paint_selector_set_mode_multiple(SPPaintSelector *psel);
static void sp_paint_selector_set_mode_none(SPPaintSelector *psel);
static void sp_paint_selector_set_mode_color(SPPaintSelector *psel, SPPaintSelectorMode mode);
static void sp_paint_selector_set_mode_gradient(SPPaintSelector *psel, SPPaintSelectorMode mode);
static void sp_paint_selector_set_mode_pattern(SPPaintSelector *psel, SPPaintSelectorMode mode);
static void sp_paint_selector_set_mode_unset(SPPaintSelector *psel);


static void sp_paint_selector_set_style_buttons(SPPaintSelector *psel, GtkWidget *active);

static GtkVBoxClass *parent_class;
static guint psel_signals[LAST_SIGNAL] = {0};

GtkType
sp_paint_selector_get_type(void)
{
    static GtkType type = 0;
    if (!type) {
        GtkTypeInfo info = {
            "SPPaintSelector",
            sizeof(SPPaintSelector),
            sizeof(SPPaintSelectorClass),
            (GtkClassInitFunc) sp_paint_selector_class_init,
            (GtkObjectInitFunc) sp_paint_selector_init,
            NULL, NULL, NULL
        };
        type = gtk_type_unique(GTK_TYPE_VBOX, &info);
    }
    return type;
}

static void
sp_paint_selector_class_init(SPPaintSelectorClass *klass)
{
    GtkObjectClass *object_class;
    GtkWidgetClass *widget_class;

    object_class = (GtkObjectClass *) klass;
    widget_class = (GtkWidgetClass *) klass;

    parent_class = (GtkVBoxClass*)gtk_type_class(GTK_TYPE_VBOX);

    psel_signals[MODE_CHANGED] = gtk_signal_new("mode_changed",
                                                (GtkSignalRunType)(GTK_RUN_FIRST | GTK_RUN_NO_RECURSE),
                                                GTK_CLASS_TYPE(object_class),
                                                GTK_SIGNAL_OFFSET(SPPaintSelectorClass, mode_changed),
                                                gtk_marshal_NONE__UINT,
                                                GTK_TYPE_NONE, 1, GTK_TYPE_UINT);
    psel_signals[GRABBED] =  gtk_signal_new("grabbed",
                                            (GtkSignalRunType)(GTK_RUN_FIRST | GTK_RUN_NO_RECURSE),
                                            GTK_CLASS_TYPE(object_class),
                                            GTK_SIGNAL_OFFSET(SPPaintSelectorClass, grabbed),
                                            gtk_marshal_NONE__NONE,
                                            GTK_TYPE_NONE, 0);
    psel_signals[DRAGGED] =  gtk_signal_new("dragged",
                                            (GtkSignalRunType)(GTK_RUN_FIRST | GTK_RUN_NO_RECURSE),
                                            GTK_CLASS_TYPE(object_class),
                                            GTK_SIGNAL_OFFSET(SPPaintSelectorClass, dragged),
                                            gtk_marshal_NONE__NONE,
                                            GTK_TYPE_NONE, 0);
    psel_signals[RELEASED] = gtk_signal_new("released",
                                            (GtkSignalRunType)(GTK_RUN_FIRST | GTK_RUN_NO_RECURSE),
                                            GTK_CLASS_TYPE(object_class),
                                            GTK_SIGNAL_OFFSET(SPPaintSelectorClass, released),
                                            gtk_marshal_NONE__NONE,
                                            GTK_TYPE_NONE, 0);
    psel_signals[CHANGED] =  gtk_signal_new("changed",
                                            (GtkSignalRunType)(GTK_RUN_FIRST | GTK_RUN_NO_RECURSE),
                                            GTK_CLASS_TYPE(object_class),
                                            GTK_SIGNAL_OFFSET(SPPaintSelectorClass, changed),
                                            gtk_marshal_NONE__NONE,
                                            GTK_TYPE_NONE, 0);
    psel_signals[FILLRULE_CHANGED] = gtk_signal_new("fillrule_changed",
                                                    (GtkSignalRunType)(GTK_RUN_FIRST | GTK_RUN_NO_RECURSE),
                                                    GTK_CLASS_TYPE(object_class),
                                                    GTK_SIGNAL_OFFSET(SPPaintSelectorClass, fillrule_changed),
                                                    gtk_marshal_NONE__UINT,
                                                    GTK_TYPE_NONE, 1, GTK_TYPE_UINT);

    object_class->destroy = sp_paint_selector_destroy;
}

#define XPAD 4
#define YPAD 1

static void
sp_paint_selector_init(SPPaintSelector *psel)
{
    GtkTooltips *tt = gtk_tooltips_new();

    psel->mode = (SPPaintSelectorMode)-1; // huh?  do you mean 0xff?  --  I think this means "not in the enum"

    /* Paint style button box */
    psel->style = gtk_hbox_new(FALSE, 0);
    gtk_widget_show(psel->style);
    gtk_container_set_border_width(GTK_CONTAINER(psel->style), 4);
    gtk_box_pack_start(GTK_BOX(psel), psel->style, FALSE, FALSE, 0);

    /* Buttons */
    psel->none = sp_paint_selector_style_button_add(psel, INKSCAPE_STOCK_FILL_NONE,
                                                    SP_PAINT_SELECTOR_MODE_NONE, tt, _("No paint"));
    psel->solid = sp_paint_selector_style_button_add(psel, INKSCAPE_STOCK_FILL_SOLID,
                                                     SP_PAINT_SELECTOR_MODE_COLOR_RGB, tt, _("Flat color"));
    psel->gradient = sp_paint_selector_style_button_add(psel, INKSCAPE_STOCK_FILL_GRADIENT,
                                                        SP_PAINT_SELECTOR_MODE_GRADIENT_LINEAR, tt, _("Linear gradient"));
    psel->radial = sp_paint_selector_style_button_add(psel, INKSCAPE_STOCK_FILL_RADIAL,
                                                      SP_PAINT_SELECTOR_MODE_GRADIENT_RADIAL, tt, _("Radial gradient"));
    psel->pattern = sp_paint_selector_style_button_add(psel, INKSCAPE_STOCK_FILL_PATTERN,
                                                       SP_PAINT_SELECTOR_MODE_PATTERN, tt, _("Pattern"));
    psel->unset = sp_paint_selector_style_button_add(psel, INKSCAPE_STOCK_FILL_UNSET,
                                                     SP_PAINT_SELECTOR_MODE_UNSET, tt, _("Unset paint (make it undefined so it can be inherited)"));

    /* Fillrule */
    {
        psel->fillrulebox = gtk_hbox_new(FALSE, 0);
        gtk_box_pack_end(GTK_BOX(psel->style), psel->fillrulebox, FALSE, FALSE, 0);

        GtkWidget *w;
        psel->evenodd = gtk_radio_button_new(NULL);
        gtk_button_set_relief(GTK_BUTTON(psel->evenodd), GTK_RELIEF_NONE);
        gtk_toggle_button_set_mode(GTK_TOGGLE_BUTTON(psel->evenodd), FALSE);
        // TRANSLATORS: for info, see http://www.w3.org/TR/2000/CR-SVG-20000802/painting.html#FillRuleProperty
        gtk_tooltips_set_tip(tt, psel->evenodd, _("Any path self-intersections or subpaths create holes in the fill (fill-rule: evenodd)"), NULL);
        gtk_object_set_data(GTK_OBJECT(psel->evenodd), "mode", GUINT_TO_POINTER(SP_PAINT_SELECTOR_FILLRULE_EVENODD));
        w = sp_icon_new(Inkscape::ICON_SIZE_DECORATION, "fillrule_evenodd");
        gtk_container_add(GTK_CONTAINER(psel->evenodd), w);
        gtk_box_pack_start(GTK_BOX(psel->fillrulebox), psel->evenodd, FALSE, FALSE, 0);
        gtk_signal_connect(GTK_OBJECT(psel->evenodd), "toggled", GTK_SIGNAL_FUNC(sp_paint_selector_fillrule_toggled), psel);

        psel->nonzero = gtk_radio_button_new(gtk_radio_button_group(GTK_RADIO_BUTTON(psel->evenodd)));
        gtk_button_set_relief(GTK_BUTTON(psel->nonzero), GTK_RELIEF_NONE);
        gtk_toggle_button_set_mode(GTK_TOGGLE_BUTTON(psel->nonzero), FALSE);
        // TRANSLATORS: for info, see http://www.w3.org/TR/2000/CR-SVG-20000802/painting.html#FillRuleProperty
        gtk_tooltips_set_tip(tt, psel->nonzero, _("Fill is solid unless a subpath is counterdirectional (fill-rule: nonzero)"), NULL);
        gtk_object_set_data(GTK_OBJECT(psel->nonzero), "mode", GUINT_TO_POINTER(SP_PAINT_SELECTOR_FILLRULE_NONZERO));
        w = sp_icon_new(Inkscape::ICON_SIZE_DECORATION, "fillrule_nonzero");
        gtk_container_add(GTK_CONTAINER(psel->nonzero), w);
        gtk_box_pack_start(GTK_BOX(psel->fillrulebox), psel->nonzero, FALSE, FALSE, 0);
        gtk_signal_connect(GTK_OBJECT(psel->nonzero), "toggled", GTK_SIGNAL_FUNC(sp_paint_selector_fillrule_toggled), psel);
    }

    /* Frame */
    psel->frame = gtk_frame_new("");
    gtk_widget_show(psel->frame);
    gtk_container_set_border_width(GTK_CONTAINER(psel->frame), 0);
    gtk_box_pack_start(GTK_BOX(psel), psel->frame, TRUE, TRUE, 0);

    /* Last used color */
    sp_color_set_rgb_float(&psel->color, 0.0, 0.0, 0.0);
    psel->alpha = 1.0;
}

static void
sp_paint_selector_destroy(GtkObject *object)
{
    SPPaintSelector *psel = SP_PAINT_SELECTOR(object);

    // clean up our long-living pattern menu
    g_object_set_data(G_OBJECT(psel),"patternmenu",NULL);

    if (((GtkObjectClass *) parent_class)->destroy)
        (* ((GtkObjectClass *) parent_class)->destroy)(object);
}

static GtkWidget *
sp_paint_selector_style_button_add(SPPaintSelector *psel,
                                   gchar const *pixmap, SPPaintSelectorMode mode,
                                   GtkTooltips *tt, gchar const *tip)
{
    GtkWidget *b, *w;

    b = gtk_toggle_button_new();
    gtk_tooltips_set_tip(tt, b, tip, NULL);
    gtk_widget_show(b);

    gtk_container_set_border_width(GTK_CONTAINER(b), 0);

    gtk_button_set_relief(GTK_BUTTON(b), GTK_RELIEF_NONE);

    gtk_toggle_button_set_mode(GTK_TOGGLE_BUTTON(b), FALSE);
    gtk_object_set_data(GTK_OBJECT(b), "mode", GUINT_TO_POINTER(mode));

    w = sp_icon_new(Inkscape::ICON_SIZE_BUTTON, pixmap);
    gtk_widget_show(w);
    gtk_container_add(GTK_CONTAINER(b), w);

    gtk_box_pack_start(GTK_BOX(psel->style), b, FALSE, FALSE, 0);
    gtk_signal_connect(GTK_OBJECT(b), "toggled", GTK_SIGNAL_FUNC(sp_paint_selector_style_button_toggled), psel);

    return b;
}

static void
sp_paint_selector_style_button_toggled(GtkToggleButton *tb, SPPaintSelector *psel)
{
    if (!psel->update && gtk_toggle_button_get_active(tb)) {
        sp_paint_selector_set_mode(psel, (SPPaintSelectorMode)GPOINTER_TO_UINT(gtk_object_get_data(GTK_OBJECT(tb), "mode")));
    }
}

static void
sp_paint_selector_fillrule_toggled(GtkToggleButton *tb, SPPaintSelector *psel)
{
    if (!psel->update && gtk_toggle_button_get_active(tb)) {
        SPPaintSelectorFillRule fr = (SPPaintSelectorFillRule)GPOINTER_TO_UINT(gtk_object_get_data(GTK_OBJECT(tb), "mode"));
        gtk_signal_emit(GTK_OBJECT(psel), psel_signals[FILLRULE_CHANGED], fr);
    }
}

void
sp_paint_selector_show_fillrule(SPPaintSelector *psel, bool is_fill)
{
    if (psel->fillrulebox) {
        if (is_fill) {
            gtk_widget_show_all(psel->fillrulebox);
        } else {
            gtk_widget_destroy(psel->fillrulebox);
            psel->fillrulebox = NULL;
        }
    }
}


GtkWidget *
sp_paint_selector_new(bool is_fill)
{
    SPPaintSelector *psel;

    psel = (SPPaintSelector*)gtk_type_new(SP_TYPE_PAINT_SELECTOR);

    sp_paint_selector_set_mode(psel, SP_PAINT_SELECTOR_MODE_MULTIPLE);

    // This silliness is here because I don't know how to pass a parameter to the
    // GtkObject "constructor" (sp_paint_selector_init). Remove it when paint_selector
    // becomes a normal class.
    sp_paint_selector_show_fillrule(psel, is_fill);

    return GTK_WIDGET(psel);
}

void
sp_paint_selector_set_mode(SPPaintSelector *psel, SPPaintSelectorMode mode)
{
    if (psel->mode != mode) {
        psel->update = TRUE;
#ifdef SP_PS_VERBOSE
        g_print("Mode change %d -> %d\n", psel->mode, mode);
#endif
        switch (mode) {
            case SP_PAINT_SELECTOR_MODE_EMPTY:
                sp_paint_selector_set_mode_empty(psel);
                break;
            case SP_PAINT_SELECTOR_MODE_MULTIPLE:
                sp_paint_selector_set_mode_multiple(psel);
                break;
            case SP_PAINT_SELECTOR_MODE_NONE:
                sp_paint_selector_set_mode_none(psel);
                break;
            case SP_PAINT_SELECTOR_MODE_COLOR_RGB:
            case SP_PAINT_SELECTOR_MODE_COLOR_CMYK:
                sp_paint_selector_set_mode_color(psel, mode);
                break;
            case SP_PAINT_SELECTOR_MODE_GRADIENT_LINEAR:
            case SP_PAINT_SELECTOR_MODE_GRADIENT_RADIAL:
                sp_paint_selector_set_mode_gradient(psel, mode);
                break;
            case SP_PAINT_SELECTOR_MODE_PATTERN:
                sp_paint_selector_set_mode_pattern(psel, mode);
                break;
            case SP_PAINT_SELECTOR_MODE_UNSET:
                sp_paint_selector_set_mode_unset(psel);
                break;
            default:
                g_warning("file %s: line %d: Unknown paint mode %d", __FILE__, __LINE__, mode);
                break;
        }
        psel->mode = mode;
        gtk_signal_emit(GTK_OBJECT(psel), psel_signals[MODE_CHANGED], psel->mode);
        psel->update = FALSE;
    }
}

void
sp_paint_selector_set_fillrule(SPPaintSelector *psel, SPPaintSelectorFillRule fillrule)
{
    if (psel->fillrulebox) {
        gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(psel->evenodd), (fillrule == SP_PAINT_SELECTOR_FILLRULE_EVENODD));
        gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(psel->nonzero), (fillrule == SP_PAINT_SELECTOR_FILLRULE_NONZERO));
    }
}

void
sp_paint_selector_set_color_alpha(SPPaintSelector *psel, SPColor const *color, float alpha)
{
    g_return_if_fail( ( 0.0 <= alpha ) && ( alpha <= 1.0 ) );
    SPColorSelector *csel;
    guint32 rgba;

    if ( sp_color_get_colorspace_type(color) == SP_COLORSPACE_TYPE_CMYK )
    {
#ifdef SP_PS_VERBOSE
        g_print("PaintSelector set CMYKA\n");
#endif
        sp_paint_selector_set_mode(psel, SP_PAINT_SELECTOR_MODE_COLOR_CMYK);
    }
    else
    {
#ifdef SP_PS_VERBOSE
        g_print("PaintSelector set RGBA\n");
#endif
        sp_paint_selector_set_mode(psel, SP_PAINT_SELECTOR_MODE_COLOR_RGB);
    }

    csel = (SPColorSelector*)gtk_object_get_data(GTK_OBJECT(psel->selector), "color-selector");
    rgba = sp_color_get_rgba32_falpha( &*color, alpha );
    csel->base->setColorAlpha( *color, alpha );
}

void
sp_paint_selector_set_gradient_linear(SPPaintSelector *psel, SPGradient *vector)
{
    SPGradientSelector *gsel;
#ifdef SP_PS_VERBOSE
    g_print("PaintSelector set GRADIENT LINEAR\n");
#endif
    sp_paint_selector_set_mode(psel, SP_PAINT_SELECTOR_MODE_GRADIENT_LINEAR);

    gsel = (SPGradientSelector*)gtk_object_get_data(GTK_OBJECT(psel->selector), "gradient-selector");

    sp_gradient_selector_set_mode(gsel, SP_GRADIENT_SELECTOR_MODE_LINEAR);
    sp_gradient_selector_set_vector(gsel, (vector) ? SP_OBJECT_DOCUMENT(vector) : NULL, vector);
}

void
sp_paint_selector_set_gradient_radial(SPPaintSelector *psel, SPGradient *vector)
{
    SPGradientSelector *gsel;
#ifdef SP_PS_VERBOSE
    g_print("PaintSelector set GRADIENT RADIAL\n");
#endif
    sp_paint_selector_set_mode(psel, SP_PAINT_SELECTOR_MODE_GRADIENT_RADIAL);

    gsel = (SPGradientSelector*)gtk_object_get_data(GTK_OBJECT(psel->selector), "gradient-selector");

    sp_gradient_selector_set_mode(gsel, SP_GRADIENT_SELECTOR_MODE_RADIAL);
    sp_gradient_selector_set_vector(gsel, (vector) ? SP_OBJECT_DOCUMENT(vector) : NULL, vector);
}

void
sp_paint_selector_set_gradient_properties(SPPaintSelector *psel, SPGradientUnits units, SPGradientSpread spread)
{
    SPGradientSelector *gsel;
    g_return_if_fail(SP_IS_PAINT_SELECTOR(psel));
    g_return_if_fail((psel->mode == SP_PAINT_SELECTOR_MODE_GRADIENT_LINEAR) ||
                     (psel->mode == SP_PAINT_SELECTOR_MODE_GRADIENT_RADIAL));
    gsel = (SPGradientSelector*)gtk_object_get_data(GTK_OBJECT(psel->selector), "gradient-selector");
    sp_gradient_selector_set_units(gsel, units);
    sp_gradient_selector_set_spread(gsel, spread);
}

void
sp_paint_selector_get_gradient_properties(SPPaintSelector *psel, SPGradientUnits *units, SPGradientSpread *spread)
{
    SPGradientSelector *gsel;
    g_return_if_fail(SP_IS_PAINT_SELECTOR(psel));
    g_return_if_fail((psel->mode == SP_PAINT_SELECTOR_MODE_GRADIENT_LINEAR) ||
                     (psel->mode == SP_PAINT_SELECTOR_MODE_GRADIENT_RADIAL));
    gsel = (SPGradientSelector*)gtk_object_get_data(GTK_OBJECT(psel->selector), "gradient-selector");
    if (units) *units = sp_gradient_selector_get_units(gsel);
    if (spread) *spread = sp_gradient_selector_get_spread(gsel);
}

/**
 * \post (alpha == NULL) || (*alpha in [0.0, 1.0]).
 */
void
sp_paint_selector_get_color_alpha(SPPaintSelector *psel, SPColor *color, gfloat *alpha)
{
    SPColorSelector *csel;

    csel = (SPColorSelector*)gtk_object_get_data(GTK_OBJECT(psel->selector), "color-selector");

    csel->base->getColorAlpha( *color, alpha );

    g_assert( !alpha
              || ( ( 0.0 <= *alpha )
                   && ( *alpha <= 1.0 ) ) );
}

SPGradient *
sp_paint_selector_get_gradient_vector(SPPaintSelector *psel)
{
    SPGradientSelector *gsel;

    g_return_val_if_fail((psel->mode == SP_PAINT_SELECTOR_MODE_GRADIENT_LINEAR) ||
                         (psel->mode == SP_PAINT_SELECTOR_MODE_GRADIENT_RADIAL), NULL);

    gsel = (SPGradientSelector*)gtk_object_get_data(GTK_OBJECT(psel->selector), "gradient-selector");

    return sp_gradient_selector_get_vector(gsel);
}

void
sp_gradient_selector_attrs_to_gradient(SPGradient *gr, SPPaintSelector *psel)
{
    SPGradientUnits units;
    SPGradientSpread spread;
    sp_paint_selector_get_gradient_properties(psel, &units, &spread);
    sp_gradient_set_units(gr, units);
    sp_gradient_set_spread(gr, spread);
    SP_OBJECT(gr)->updateRepr();
}

static void
sp_paint_selector_clear_frame(SPPaintSelector *psel)
{
    g_return_if_fail( psel != NULL);

    if (psel->selector) {

        /* before we destroy the frame contents, we must detach
         * the patternmenu so that Gtk doesn't gtk_widget_destroy
         * all the children of the menu.  (We also have a g_object_ref
         * count set on it too so that the gtk_container_remove doesn't
         * end up destroying it.
         */
        GtkWidget *patterns = (GtkWidget *)g_object_get_data(G_OBJECT(psel), "patternmenu");
        if (patterns != NULL) {
            GtkWidget * parent = gtk_widget_get_parent( GTK_WIDGET(patterns));
            if ( parent != NULL ) {
                g_assert( GTK_IS_CONTAINER(parent) );
                gtk_container_remove( GTK_CONTAINER(parent), patterns );
            }
        }

        gtk_widget_destroy(psel->selector);
        psel->selector = NULL;
    }
}

static void
sp_paint_selector_set_mode_empty(SPPaintSelector *psel)
{
    sp_paint_selector_set_style_buttons(psel, NULL);
    gtk_widget_set_sensitive(psel->style, FALSE);

    sp_paint_selector_clear_frame(psel);

    gtk_frame_set_label(GTK_FRAME(psel->frame), _("No objects"));
}

static void
sp_paint_selector_set_mode_multiple(SPPaintSelector *psel)
{
    sp_paint_selector_set_style_buttons(psel, NULL);
    gtk_widget_set_sensitive(psel->style, TRUE);

    sp_paint_selector_clear_frame(psel);

    gtk_frame_set_label(GTK_FRAME(psel->frame), _("Multiple styles"));
}

static void
sp_paint_selector_set_mode_unset(SPPaintSelector *psel)
{
    sp_paint_selector_set_style_buttons(psel, psel->unset);
    gtk_widget_set_sensitive(psel->style, TRUE);

    sp_paint_selector_clear_frame(psel);

    gtk_frame_set_label(GTK_FRAME(psel->frame), _("Paint is undefined"));
}

static void
sp_paint_selector_set_mode_none(SPPaintSelector *psel)
{
    sp_paint_selector_set_style_buttons(psel, psel->none);
    gtk_widget_set_sensitive(psel->style, TRUE);

    sp_paint_selector_clear_frame(psel);

    gtk_frame_set_label(GTK_FRAME(psel->frame), _("No paint"));
}

/* Color paint */

static void
sp_paint_selector_color_grabbed(SPColorSelector *csel, SPPaintSelector *psel)
{
    gtk_signal_emit(GTK_OBJECT(psel), psel_signals[GRABBED]);
}

static void
sp_paint_selector_color_dragged(SPColorSelector *csel, SPPaintSelector *psel)
{
    gtk_signal_emit(GTK_OBJECT(psel), psel_signals[DRAGGED]);
}

static void
sp_paint_selector_color_released(SPColorSelector *csel, SPPaintSelector *psel)
{
    gtk_signal_emit(GTK_OBJECT(psel), psel_signals[RELEASED]);
}

static void
sp_paint_selector_color_changed(SPColorSelector *csel, SPPaintSelector *psel)
{
    csel->base->getColorAlpha( psel->color, &psel->alpha );

    gtk_signal_emit(GTK_OBJECT(psel), psel_signals[CHANGED]);
}

static void
sp_paint_selector_set_mode_color(SPPaintSelector *psel, SPPaintSelectorMode mode)
{
    GtkWidget *csel;

    sp_paint_selector_set_style_buttons(psel, psel->solid);
    gtk_widget_set_sensitive(psel->style, TRUE);

    if ((psel->mode == SP_PAINT_SELECTOR_MODE_COLOR_RGB) || (psel->mode == SP_PAINT_SELECTOR_MODE_COLOR_CMYK)) {
        /* Already have color selector */
        csel = (GtkWidget*)gtk_object_get_data(GTK_OBJECT(psel->selector), "color-selector");
    } else {

        sp_paint_selector_clear_frame(psel);
        /* Create new color selector */
        /* Create vbox */
        GtkWidget *vb = gtk_vbox_new(FALSE, 4);
        gtk_widget_show(vb);

        /* Color selector */
        csel = sp_color_selector_new(SP_TYPE_COLOR_NOTEBOOK, SP_COLORSPACE_TYPE_NONE);
        gtk_widget_show(csel);
        gtk_object_set_data(GTK_OBJECT(vb), "color-selector", csel);
        gtk_box_pack_start(GTK_BOX(vb), csel, TRUE, TRUE, 0);
        gtk_signal_connect(GTK_OBJECT(csel), "grabbed", GTK_SIGNAL_FUNC(sp_paint_selector_color_grabbed), psel);
        gtk_signal_connect(GTK_OBJECT(csel), "dragged", GTK_SIGNAL_FUNC(sp_paint_selector_color_dragged), psel);
        gtk_signal_connect(GTK_OBJECT(csel), "released", GTK_SIGNAL_FUNC(sp_paint_selector_color_released), psel);
        gtk_signal_connect(GTK_OBJECT(csel), "changed", GTK_SIGNAL_FUNC(sp_paint_selector_color_changed), psel);
        /* Pack everything to frame */
        gtk_container_add(GTK_CONTAINER(psel->frame), vb);
        psel->selector = vb;

        /* Set color */
        SP_COLOR_SELECTOR( csel )->base->setColorAlpha( psel->color, psel->alpha );

    }

    gtk_frame_set_label(GTK_FRAME(psel->frame), _("Flat color"));
#ifdef SP_PS_VERBOSE
    g_print("Color req\n");
#endif
}

/* Gradient */

static void
sp_paint_selector_gradient_grabbed(SPColorSelector *csel, SPPaintSelector *psel)
{
    gtk_signal_emit(GTK_OBJECT(psel), psel_signals[GRABBED]);
}

static void
sp_paint_selector_gradient_dragged(SPColorSelector *csel, SPPaintSelector *psel)
{
    gtk_signal_emit(GTK_OBJECT(psel), psel_signals[DRAGGED]);
}

static void
sp_paint_selector_gradient_released(SPColorSelector *csel, SPPaintSelector *psel)
{
    gtk_signal_emit(GTK_OBJECT(psel), psel_signals[RELEASED]);
}

static void
sp_paint_selector_gradient_changed(SPColorSelector *csel, SPPaintSelector *psel)
{
    gtk_signal_emit(GTK_OBJECT(psel), psel_signals[CHANGED]);
}

static void
sp_paint_selector_set_mode_gradient(SPPaintSelector *psel, SPPaintSelectorMode mode)
{
    GtkWidget *gsel;

    /* fixme: We do not need function-wide gsel at all */

    if (mode == SP_PAINT_SELECTOR_MODE_GRADIENT_LINEAR) {
        sp_paint_selector_set_style_buttons(psel, psel->gradient);
    } else {
        sp_paint_selector_set_style_buttons(psel, psel->radial);
    }
    gtk_widget_set_sensitive(psel->style, TRUE);

    if ((psel->mode == SP_PAINT_SELECTOR_MODE_GRADIENT_LINEAR) || (psel->mode == SP_PAINT_SELECTOR_MODE_GRADIENT_RADIAL)) {
        /* Already have gradient selector */
        gsel = (GtkWidget*)gtk_object_get_data(GTK_OBJECT(psel->selector), "gradient-selector");
    } else {
        sp_paint_selector_clear_frame(psel);
        /* Create new gradient selector */
        gsel = sp_gradient_selector_new();
        gtk_widget_show(gsel);
        gtk_signal_connect(GTK_OBJECT(gsel), "grabbed", GTK_SIGNAL_FUNC(sp_paint_selector_gradient_grabbed), psel);
        gtk_signal_connect(GTK_OBJECT(gsel), "dragged", GTK_SIGNAL_FUNC(sp_paint_selector_gradient_dragged), psel);
        gtk_signal_connect(GTK_OBJECT(gsel), "released", GTK_SIGNAL_FUNC(sp_paint_selector_gradient_released), psel);
        gtk_signal_connect(GTK_OBJECT(gsel), "changed", GTK_SIGNAL_FUNC(sp_paint_selector_gradient_changed), psel);
        /* Pack everything to frame */
        gtk_container_add(GTK_CONTAINER(psel->frame), gsel);
        psel->selector = gsel;
        gtk_object_set_data(GTK_OBJECT(psel->selector), "gradient-selector", gsel);
    }

    /* Actually we have to set optiomenu history here */
    if (mode == SP_PAINT_SELECTOR_MODE_GRADIENT_LINEAR) {
        sp_gradient_selector_set_mode(SP_GRADIENT_SELECTOR(gsel), SP_GRADIENT_SELECTOR_MODE_LINEAR);
        gtk_frame_set_label(GTK_FRAME(psel->frame), _("Linear gradient"));
    } else {
        sp_gradient_selector_set_mode(SP_GRADIENT_SELECTOR(gsel), SP_GRADIENT_SELECTOR_MODE_RADIAL);
        gtk_frame_set_label(GTK_FRAME(psel->frame), _("Radial gradient"));
    }
#ifdef SP_PS_VERBOSE
    g_print("Gradient req\n");
#endif
}

static void
sp_paint_selector_set_style_buttons(SPPaintSelector *psel, GtkWidget *active)
{
    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(psel->none), (active == psel->none));
    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(psel->solid), (active == psel->solid));
    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(psel->gradient), (active == psel->gradient));
    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(psel->radial), (active == psel->radial));
    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(psel->pattern), (active == psel->pattern));
    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(psel->unset), (active == psel->unset));
}

static void
sp_psel_pattern_destroy(GtkWidget *widget,  SPPaintSelector *psel)
{
    // drop our reference to the pattern menu widget
    g_object_unref( G_OBJECT(widget) );
}

static void
sp_psel_pattern_change(GtkWidget *widget,  SPPaintSelector *psel)
{
    gtk_signal_emit(GTK_OBJECT(psel), psel_signals[CHANGED]);
}

static GtkWidget*
ink_pattern_menu(GtkWidget *mnu)
{
    /* Create new menu widget */
    GtkWidget *m = gtk_menu_new();
    gtk_widget_show(m);

    /* Pick up all patterns  */
    SPDocument *doc = SP_ACTIVE_DOCUMENT;
    GSList *pl = NULL;
    GSList const *patterns = sp_document_get_resource_list(doc, "pattern");
    for (GSList *l = (GSList *) patterns; l != NULL; l = l->next) {
        if (SP_PATTERN(l->data) == pattern_getroot(SP_PATTERN(l->data))) {  // only if this is a root pattern
            pl = g_slist_prepend(pl, l->data);
        }
    }

    pl = g_slist_reverse(pl);

    if (!doc) {
        GtkWidget *i;
        i = gtk_menu_item_new_with_label(_("No document selected"));
        gtk_widget_show(i);
        gtk_menu_append(GTK_MENU(m), i);
        gtk_widget_set_sensitive(mnu, FALSE);
    } else if (!pl) {
        GtkWidget *i;
        i = gtk_menu_item_new_with_label(_("No patterns in document"));
        gtk_widget_show(i);
        gtk_menu_append(GTK_MENU(m), i);
        gtk_widget_set_sensitive(mnu, FALSE);
    } else {
        for (; pl != NULL; pl = pl->next){
            if (SP_IS_PATTERN(pl->data)){
                SPPattern *pat = SP_PATTERN(pl->data);
                GtkWidget *i = gtk_menu_item_new();
                gtk_widget_show(i);
                g_object_set_data(G_OBJECT(i), "pattern", pat);
                GtkWidget *hb = gtk_hbox_new(FALSE, 4);
                gtk_widget_show(hb);
                Inkscape::XML::Node *repr = SP_OBJECT_REPR((SPItem *) pl->data);
                GtkWidget *l = gtk_label_new(repr->attribute("id"));
                gtk_widget_show(l);
                gtk_misc_set_alignment(GTK_MISC(l), 1.0, 0.5);
                gtk_box_pack_start(GTK_BOX(hb), l, TRUE, TRUE, 0);
                gtk_widget_show(hb);
                gtk_container_add(GTK_CONTAINER(i), hb);
                gtk_menu_append(GTK_MENU(m), i);
            }
        }

        gtk_widget_set_sensitive(mnu, TRUE);
    }
    gtk_option_menu_set_menu(GTK_OPTION_MENU(mnu), m);

    /* Set history */
    //gtk_option_menu_set_history(GTK_OPTION_MENU(mnu), 0);

    g_slist_free(pl);
    return mnu;
}


/*update pattern list*/
void
sp_update_pattern_list( SPPaintSelector *psel,  SPPattern *pattern)
{
    if (psel->update) return;
    GtkWidget *mnu = (GtkWidget *)g_object_get_data(G_OBJECT(psel), "patternmenu");
    g_assert( mnu != NULL );

    /* Clear existing menu if any */
    gtk_option_menu_remove_menu(GTK_OPTION_MENU(mnu));

    ink_pattern_menu(mnu);

    /* Set history */

    if (pattern && !gtk_object_get_data(GTK_OBJECT(mnu), "update")) {

        gtk_object_set_data(GTK_OBJECT(mnu), "update", GINT_TO_POINTER(TRUE));

        gchar *patname = (gchar *) SP_OBJECT_REPR(pattern)->attribute("id");

        GtkMenu *m = GTK_MENU(gtk_option_menu_get_menu(GTK_OPTION_MENU(mnu)));
        GList *kids = GTK_MENU_SHELL(m)->children;

        int patpos = 0;
        int i = 0;

        for (; kids != NULL; kids = kids->next) {
            gchar *men_pat = (gchar *) SP_OBJECT_REPR(g_object_get_data(G_OBJECT(kids->data), "pattern"))->attribute("id");
            if ( strcmp(men_pat, patname) == 0 ) {
                patpos = i;
            }
            i++;
        }

        gtk_option_menu_set_history(GTK_OPTION_MENU(mnu), patpos);
        gtk_object_set_data(GTK_OBJECT(mnu), "update", GINT_TO_POINTER(FALSE));
    }
    //gtk_option_menu_set_history(GTK_OPTION_MENU(mnu), 0);
}

static void
sp_paint_selector_set_mode_pattern(SPPaintSelector *psel, SPPaintSelectorMode mode)
{
    if (mode == SP_PAINT_SELECTOR_MODE_PATTERN)
        sp_paint_selector_set_style_buttons(psel, psel->pattern);

    gtk_widget_set_sensitive(psel->style, TRUE);

    GtkWidget *tbl = NULL;

    if (psel->mode == SP_PAINT_SELECTOR_MODE_PATTERN){
        /* Already have pattern menu */
        tbl = (GtkWidget*)gtk_object_get_data(GTK_OBJECT(psel->selector), "pattern-selector");
    } else {
        sp_paint_selector_clear_frame(psel);

        /* Create vbox */
        tbl = gtk_vbox_new(FALSE, 4);
        gtk_widget_show(tbl);

        {
            GtkWidget *hb = gtk_hbox_new(FALSE, 1);

            GtkWidget *mnu = gtk_option_menu_new();
            ink_pattern_menu(mnu);
            gtk_signal_connect(GTK_OBJECT(mnu), "changed", GTK_SIGNAL_FUNC(sp_psel_pattern_change), psel);
            gtk_signal_connect(GTK_OBJECT(mnu), "destroy", GTK_SIGNAL_FUNC(sp_psel_pattern_destroy), psel);
            gtk_object_set_data(GTK_OBJECT(psel), "patternmenu", mnu);
            g_object_ref( G_OBJECT(mnu));

            gtk_container_add(GTK_CONTAINER(hb), mnu);
            gtk_box_pack_start(GTK_BOX(tbl), hb, FALSE, FALSE, AUX_BETWEEN_BUTTON_GROUPS);
        }

        {
            GtkWidget *hb = gtk_hbox_new(FALSE, 0);
            GtkWidget *l = gtk_label_new(NULL);
            gtk_label_set_markup(GTK_LABEL(l), _("Use <b>Object &gt; Pattern &gt; Objects to Pattern</b> to create a new pattern from selection."));
            gtk_label_set_line_wrap(GTK_LABEL(l), true);
            gtk_widget_set_size_request(l, 180, -1);
            gtk_box_pack_start(GTK_BOX(hb), l, TRUE, TRUE, AUX_BETWEEN_BUTTON_GROUPS);
            gtk_box_pack_start(GTK_BOX(tbl), hb, FALSE, FALSE, AUX_BETWEEN_BUTTON_GROUPS);
        }

        gtk_widget_show_all(tbl);

        gtk_container_add(GTK_CONTAINER(psel->frame), tbl);
        psel->selector = tbl;
        gtk_object_set_data(GTK_OBJECT(psel->selector), "pattern-selector", tbl);

        gtk_frame_set_label(GTK_FRAME(psel->frame), _("Pattern fill"));
    }
#ifdef SP_PS_VERBOSE
    g_print("Pattern req\n");
#endif
}

SPPattern *
sp_paint_selector_get_pattern(SPPaintSelector *psel)
{
    SPPattern *pat;

    g_return_val_if_fail((psel->mode == SP_PAINT_SELECTOR_MODE_PATTERN) , NULL);

    GtkWidget *patmnu = (GtkWidget *) g_object_get_data(G_OBJECT(psel), "patternmenu");
    /* no pattern menu if we were just selected */
    if ( patmnu == NULL ) return NULL;

    GtkMenu *m = GTK_MENU(gtk_option_menu_get_menu(GTK_OPTION_MENU(patmnu)));

    pat = pattern_getroot(SP_PATTERN(g_object_get_data(G_OBJECT(gtk_menu_get_active(m)), "pattern")));

    return pat;
}

void
sp_paint_selector_set_flat_color(SPPaintSelector *psel, SPDesktop *desktop, gchar const *color_property, gchar const *opacity_property)
{
    SPCSSAttr *css = sp_repr_css_attr_new();

    SPColor color;
    gfloat alpha;
    sp_paint_selector_get_color_alpha(psel, &color, &alpha);
    guint32 rgba = sp_color_get_rgba32_falpha(&color, alpha);

    gchar b[64];
    sp_svg_write_color(b, 64, rgba);

    sp_repr_css_set_property(css, color_property, b);
    Inkscape::CSSOStringStream osalpha;
    osalpha << alpha;
    sp_repr_css_set_property(css, opacity_property, osalpha.str().c_str());

    sp_desktop_set_style(desktop, css);

    sp_repr_css_attr_unref(css);
}

SPPaintSelectorMode
sp_style_determine_paint_selector_mode(SPStyle *style, bool isfill)
{
    unsigned set = isfill? style->fill.set : style->stroke.set;
    if (!set)
        return SP_PAINT_SELECTOR_MODE_UNSET;

    unsigned type = isfill? style->fill.type : style->stroke.type;
    switch (type) {

        case SP_PAINT_TYPE_NONE:
        {
            return SP_PAINT_SELECTOR_MODE_NONE;
        }

        case SP_PAINT_TYPE_COLOR:
        {
            return SP_PAINT_SELECTOR_MODE_COLOR_RGB; // so far only rgb can be read from svg
        }

        case SP_PAINT_TYPE_PAINTSERVER:
        {
            SPPaintServer *server = isfill? SP_STYLE_FILL_SERVER(style) : SP_STYLE_STROKE_SERVER(style);

            if (SP_IS_LINEARGRADIENT(server)) {
                return SP_PAINT_SELECTOR_MODE_GRADIENT_LINEAR;
            } else if (SP_IS_RADIALGRADIENT(server)) {
                return SP_PAINT_SELECTOR_MODE_GRADIENT_RADIAL;
            } else if (SP_IS_PATTERN(server)) {
                return SP_PAINT_SELECTOR_MODE_PATTERN;
            }

            g_warning( "file %s: line %d: Unknown paintserver",
                       __FILE__, __LINE__ );
            return SP_PAINT_SELECTOR_MODE_NONE;
        }

        default:
            g_warning( "file %s: line %d: Unknown paint type %d",
                       __FILE__, __LINE__, type );
            break;
    }

    return SP_PAINT_SELECTOR_MODE_NONE;
}

/*
  Local Variables:
  mode:c++
  c-file-style:"stroustrup"
  c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
  indent-tabs-mode:nil
  fill-column:99
  End:
*/
// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :