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index 44c81057c853e174be369155a40639406d773ba6..b001214cf29d0c40a5d16c66cb5b98d8033f13b6 100644 (file)
--- a/src/lpe-tool-context.cpp
+++ b/src/lpe-tool-context.cpp
#include "config.h"
#endif
+#include <2geom/sbasis-geometric.h>
+#include <gdk/gdkkeysyms.h>
+
+#include "macros.h"
#include "forward.h"
#include "pixmaps/cursor-node.xpm"
#include "pixmaps/cursor-crosshairs.xpm"
#include "display/curve.h"
#include "display/canvas-bpath.h"
#include "message-stack.h"
+#include "sp-path.h"
+#include "helper/units.h"
#include "lpe-tool-context.h"
static void sp_lpetool_context_setup(SPEventContext *ec);
static void sp_lpetool_context_set(SPEventContext *ec, gchar const *key, gchar const *val);
+static gint sp_lpetool_context_item_handler(SPEventContext *ec, SPItem *item, GdkEvent *event);
static gint sp_lpetool_context_root_handler(SPEventContext *ec, GdkEvent *event);
void sp_lpetool_context_selection_changed(Inkscape::Selection *selection, gpointer data);
event_context_class->setup = sp_lpetool_context_setup;
event_context_class->set = sp_lpetool_context_set;
event_context_class->root_handler = sp_lpetool_context_root_handler;
+ event_context_class->item_handler = sp_lpetool_context_item_handler;
}
static void
lc->hot_y = 7;
lc->canvas_bbox = NULL;
+ lc->measuring_items = new std::map<SPPath *, SPCanvasItem*>;
new (&lc->sel_changed_connection) sigc::connection();
}
lc->canvas_bbox = NULL;
}
+ lpetool_delete_measuring_items(lc);
+ delete lc->measuring_items;
+ lc->measuring_items = NULL;
+
lc->sel_changed_connection.disconnect();
lc->sel_changed_connection.~connection();
+ if (lc->_lpetool_message_context) {
+ delete lc->_lpetool_message_context;
+ }
+
G_OBJECT_CLASS(lpetool_parent_class)->dispose(object);
}
lpetool_context_switch_mode(lc, Inkscape::LivePathEffect::INVALID_LPE);
lpetool_context_reset_limiting_bbox(lc);
+ lpetool_create_measuring_items(lc);
// TODO temp force:
ec->enableSelectionCue();
ec->enableSelectionCue();
}
- lc->_message_context = new Inkscape::MessageContext((ec->desktop)->messageStack());
+ lc->_lpetool_message_context = new Inkscape::MessageContext((ec->desktop)->messageStack());
+
lc->shape_editor->update_statusbar();
}
**/
}
+static gint
+sp_lpetool_context_item_handler(SPEventContext *ec, SPItem *item, GdkEvent *event)
+{
+ gint ret = FALSE;
+
+ switch (event->type) {
+ case GDK_BUTTON_PRESS:
+ {
+ // select the clicked item but do nothing else
+ Inkscape::Selection * const selection = sp_desktop_selection(ec->desktop);
+ selection->clear();
+ selection->add(item);
+ ret = TRUE;
+ break;
+ }
+ case GDK_BUTTON_RELEASE:
+ // TODO: do we need to catch this or can we pass it on to the parent handler?
+ ret = TRUE;
+ break;
+ default:
+ break;
+ }
+
+ if (!ret) {
+ if (((SPEventContextClass *) lpetool_parent_class)->item_handler)
+ ret = ((SPEventContextClass *) lpetool_parent_class)->item_handler(ec, item, event);
+ }
+
+ return ret;
+}
+
gint
sp_lpetool_context_root_handler(SPEventContext *event_context, GdkEvent *event)
{
@@ -211,14 +261,16 @@ sp_lpetool_context_root_handler(SPEventContext *event_context, GdkEvent *event)
switch (event->type) {
case GDK_BUTTON_PRESS:
- if (lc->mode == Inkscape::LivePathEffect::INVALID_LPE) {
- // don't do anything for now if we are inactive
- desktop->messageStack()->flash(Inkscape::WARNING_MESSAGE, _("Choose a construction tool from the toolbar."));
- ret = true;
- break;
- }
-
if (event->button.button == 1 && !event_context->space_panning) {
+ if (lc->mode == Inkscape::LivePathEffect::INVALID_LPE) {
+ // don't do anything for now if we are inactive (except clearing the selection
+ // since this was a click into empty space)
+ selection->clear();
+ desktop->messageStack()->flash(Inkscape::WARNING_MESSAGE, _("Choose a construction tool from the toolbar."));
+ ret = true;
+ break;
+ }
+
// save drag origin
event_context->xp = (gint) event->button.x;
event_context->yp = (gint) event->button.y;
int mode = prefs_get_int_attribute("tools.lpetool", "mode", 0);
EffectType type = lpesubtools[mode];
- // save drag origin
- bool over_stroke = lc->shape_editor->is_over_stroke(NR::Point(event->button.x, event->button.y), true);
+ //bool over_stroke = lc->shape_editor->is_over_stroke(NR::Point(event->button.x, event->button.y), true);
sp_pen_context_wait_for_LPE_mouse_clicks(lc, type, Inkscape::LivePathEffect::Effect::acceptsNumClicks(type));
sp_canvas_bpath_set_stroke(SP_CANVAS_BPATH(lc->canvas_bbox), 0x0000ffff, 0.8, SP_STROKE_LINEJOIN_MITER, SP_STROKE_LINECAP_BUTT, 5, 5);
}
+static void
+set_pos_and_anchor(SPCanvasText *canvas_text, const Geom::Piecewise<Geom::D2<Geom::SBasis> > &pwd2,
+ const double t, const double length, bool use_curvature = false)
+{
+ using namespace Geom;
+
+ Piecewise<D2<SBasis> > pwd2_reparam = arc_length_parametrization(pwd2, 2 , 0.1);
+ double t_reparam = pwd2_reparam.cuts.back() * t;
+ Point pos = pwd2_reparam.valueAt(t_reparam);
+ Point dir = unit_vector(derivative(pwd2_reparam).valueAt(t_reparam));
+ Point n = -rot90(dir);
+ double angle = Geom::angle_between(dir, Point(1,0));
+
+ sp_canvastext_set_coords(canvas_text, pos + n * length);
+ sp_canvastext_set_anchor(canvas_text, std::sin(angle), -std::cos(angle));
+}
+
+void
+lpetool_create_measuring_items(SPLPEToolContext *lc, Inkscape::Selection *selection)
+{
+ bool show = prefs_get_int_attribute ("tools.lpetool", "show_measuring_info", 1) == 1 ? true : false;
+ if (!selection) {
+ selection = sp_desktop_selection(lc->desktop);
+ }
+
+ SPPath *path;
+ SPCurve *curve;
+ SPCanvasText *canvas_text;
+ SPCanvasGroup *tmpgrp = sp_desktop_tempgroup(lc->desktop);
+ gchar *arc_length;
+ double lengthval;
+
+ for (GSList const *i = selection->itemList(); i != NULL; i = i->next) {
+ if (SP_IS_PATH(i->data)) {
+ path = SP_PATH(i->data);
+ curve = sp_shape_get_curve(SP_SHAPE(path));
+ Geom::Piecewise<Geom::D2<Geom::SBasis> > pwd2 = paths_to_pw(curve->get_pathvector());
+ canvas_text = (SPCanvasText *) sp_canvastext_new(tmpgrp, lc->desktop, Geom::Point(0,0), "");
+ if (!show)
+ sp_canvas_item_hide(SP_CANVAS_ITEM(canvas_text));
+
+ SPUnitId unitid = static_cast<SPUnitId>(prefs_get_int_attribute("tools.lpetool", "unitid", SP_UNIT_PX));
+ SPUnit unit = sp_unit_get_by_id(unitid);
+
+ lengthval = Geom::length(pwd2);
+ gboolean success;
+ success = sp_convert_distance(&lengthval, &sp_unit_get_by_id(SP_UNIT_PX), &unit);
+ arc_length = g_strdup_printf("%.2f %s", lengthval, success ? sp_unit_get_abbreviation(&unit) : "px");
+ sp_canvastext_set_text (canvas_text, arc_length);
+ set_pos_and_anchor(canvas_text, pwd2, 0.5, 10);
+ // TODO: must we free arc_length?
+ (*lc->measuring_items)[path] = SP_CANVAS_ITEM(canvas_text);
+ }
+ }
+}
+
+void
+lpetool_delete_measuring_items(SPLPEToolContext *lc)
+{
+ std::map<SPPath *, SPCanvasItem*>::iterator i;
+ for (i = lc->measuring_items->begin(); i != lc->measuring_items->end(); ++i) {
+ gtk_object_destroy(GTK_OBJECT(i->second));
+ }
+ lc->measuring_items->clear();
+}
+
+void
+lpetool_update_measuring_items(SPLPEToolContext *lc)
+{
+ SPPath *path;
+ SPCurve *curve;
+ double lengthval;
+ gchar *arc_length;
+ std::map<SPPath *, SPCanvasItem*>::iterator i;
+ for (i = lc->measuring_items->begin(); i != lc->measuring_items->end(); ++i) {
+ path = i->first;
+ curve = sp_shape_get_curve(SP_SHAPE(path));
+ Geom::Piecewise<Geom::D2<Geom::SBasis> > pwd2 = Geom::paths_to_pw(curve->get_pathvector());
+ SPUnitId unitid = static_cast<SPUnitId>(prefs_get_int_attribute("tools.lpetool", "unitid", SP_UNIT_PX));
+ SPUnit unit = sp_unit_get_by_id(unitid);
+ lengthval = Geom::length(pwd2);
+ gboolean success;
+ success = sp_convert_distance(&lengthval, &sp_unit_get_by_id(SP_UNIT_PX), &unit);
+ arc_length = g_strdup_printf("%.2f %s", lengthval, success ? sp_unit_get_abbreviation(&unit) : "px");
+ sp_canvastext_set_text (SP_CANVASTEXT(i->second), arc_length);
+ set_pos_and_anchor(SP_CANVASTEXT(i->second), pwd2, 0.5, 10);
+ // TODO: must we free arc_length?
+ }
+}
+
+void
+lpetool_show_measuring_info(SPLPEToolContext *lc, bool show)
+{
+ std::map<SPPath *, SPCanvasItem*>::iterator i;
+ for (i = lc->measuring_items->begin(); i != lc->measuring_items->end(); ++i) {
+ if (show) {
+ sp_canvas_item_show(i->second);
+ } else {
+ sp_canvas_item_hide(i->second);
+ }
+ }
+}
+
/*
Local Variables:
mode:c++