inkscape/src/common-context.cpp

	common-context.cpp revision 4fe50a80bfee178be2bb98e881a327464cd77982

#include "common-context.h"

#include <gtk/gtk.h>

#include "config.h"

#include "forward.h"
#include "message-context.h"

#define DRAG_DEFAULT 1.0
#define MIN_PRESSURE      0.0
#define MAX_PRESSURE      1.0
#define DEFAULT_PRESSURE  1.0


static void sp_common_context_class_init(SPCommonContextClass *klass);
static void sp_common_context_init(SPCommonContext *erc);
static void sp_common_context_dispose(GObject *object);

static void sp_common_context_setup(SPEventContext *ec);
static void sp_common_context_set(SPEventContext *ec, gchar const *key, gchar const *value);

static gint sp_common_context_root_handler(SPEventContext *event_context, GdkEvent *event);


static SPEventContextClass *common_parent_class = 0;

GType sp_common_context_get_type(void)
{
    static GType type = 0;
    if (!type) {
        GTypeInfo info = {
            sizeof(SPCommonContextClass),
            0, // base_init
            0, // base_finalize
            (GClassInitFunc)sp_common_context_class_init,
            0, // class_finalize
            0, // class_data
            sizeof(SPCommonContext),
            0, // n_preallocs
            (GInstanceInitFunc)sp_common_context_init,
            0 // value_table
        };
        type = g_type_register_static(SP_TYPE_EVENT_CONTEXT, "SPCommonContext", &info, static_cast<GTypeFlags>(0));
    }
    return type;
}


static void sp_common_context_class_init(SPCommonContextClass *klass)
{
    GObjectClass *object_class = (GObjectClass *) klass;
    SPEventContextClass *event_context_class = (SPEventContextClass *) klass;

    common_parent_class = (SPEventContextClass*)g_type_class_peek_parent(klass);

    object_class->dispose = sp_common_context_dispose;

    event_context_class->setup = sp_common_context_setup;
    event_context_class->set = sp_common_context_set;
    event_context_class->root_handler = sp_common_context_root_handler;
}

static void sp_common_context_init(SPCommonContext *ctx)
{
//     ctx->cursor_shape = cursor_eraser_xpm;
//     ctx->hot_x = 4;
//     ctx->hot_y = 4;

    ctx->accumulated = 0;
    ctx->segments = 0;
    ctx->currentcurve = 0;
    ctx->currentshape = 0;
    ctx->npoints = 0;
    ctx->cal1 = 0;
    ctx->cal2 = 0;
    ctx->repr = 0;

    /* Common values */
    ctx->cur = NR::Point(0,0);
    ctx->last = NR::Point(0,0);
    ctx->vel = NR::Point(0,0);
    ctx->vel_max = 0;
    ctx->acc = NR::Point(0,0);
    ctx->ang = NR::Point(0,0);
    ctx->del = NR::Point(0,0);

    /* attributes */
    ctx->dragging = FALSE;

    ctx->mass = 0.3;
    ctx->drag = DRAG_DEFAULT;
    ctx->angle = 30.0;
    ctx->width = 0.2;
    ctx->pressure = DEFAULT_PRESSURE;

    ctx->vel_thin = 0.1;
    ctx->flatness = 0.9;
    ctx->cap_rounding = 0.0;

    ctx->abs_width = false;
}

static void sp_common_context_dispose(GObject *object)
{
    SPCommonContext *ctx = SP_COMMON_CONTEXT(object);

    if (ctx->accumulated) {
        ctx->accumulated = ctx->accumulated->unref();
        ctx->accumulated = 0;
    }

    while (ctx->segments) {
        gtk_object_destroy(GTK_OBJECT(ctx->segments->data));
        ctx->segments = g_slist_remove(ctx->segments, ctx->segments->data);
    }

    if (ctx->currentcurve) {
        ctx->currentcurve = ctx->currentcurve->unref();
        ctx->currentcurve = 0;
    }
    if (ctx->cal1) {
        ctx->cal1 = ctx->cal1->unref();
        ctx->cal1 = 0;
    }
    if (ctx->cal2) {
        ctx->cal2 = ctx->cal2->unref();
        ctx->cal2 = 0;
    }

    if (ctx->currentshape) {
        gtk_object_destroy(GTK_OBJECT(ctx->currentshape));
        ctx->currentshape = 0;
    }

    if (ctx->_message_context) {
        delete ctx->_message_context;
        ctx->_message_context = 0;
    }

    G_OBJECT_CLASS(common_parent_class)->dispose(object);
}


static void sp_common_context_setup(SPEventContext */*ec*/)
{
}


static void sp_common_context_set(SPEventContext */*ec*/, gchar const */*key*/, gchar const */*value*/)
{
}

static gint sp_common_context_root_handler(SPEventContext */*event_context*/, GdkEvent */*event*/)
{
  return 0;
}

/*
  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 :