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diff --git a/src/pen-context.cpp b/src/pen-context.cpp
index e62d45192ddba178bbbed0b1c1e382f59403279a..607bdaedc2fc9df9279e87d201b3f5c1d077ca78 100644 (file)
--- a/src/pen-context.cpp
+++ b/src/pen-context.cpp
#include "draw-anchor.h"
#include "message-stack.h"
#include "message-context.h"
-#include "prefs-utils.h"
+#include "preferences.h"
#include "sp-path.h"
+#include "display/sp-canvas.h"
#include "display/curve.h"
#include "pixmaps/cursor-pen.xpm"
#include "display/canvas-bpath.h"
#include "display/sp-ctrlline.h"
#include "display/sodipodi-ctrl.h"
#include <glibmm/i18n.h>
-#include "libnr/n-art-bpath.h"
#include "libnr/nr-point-ops.h"
#include "helper/units.h"
#include "macros.h"
#include "context-fns.h"
+#include "tools-switch.h"
static void sp_pen_context_class_init(SPPenContextClass *klass);
static void sp_pen_context_init(SPPenContext *pc);
static void sp_pen_context_setup(SPEventContext *ec);
static void sp_pen_context_finish(SPEventContext *ec);
-static void sp_pen_context_set(SPEventContext *ec, gchar const *key, gchar const *val);
+static void sp_pen_context_set(SPEventContext *ec, Inkscape::Preferences::Entry *val);
static gint sp_pen_context_root_handler(SPEventContext *ec, GdkEvent *event);
static gint sp_pen_context_item_handler(SPEventContext *event_context, SPItem *item, GdkEvent *event);
-static void spdc_pen_set_initial_point(SPPenContext *pc, NR::Point const p);
-static void spdc_pen_set_subsequent_point(SPPenContext *pc, NR::Point const p, bool statusbar);
-static void spdc_pen_set_ctrl(SPPenContext *pc, NR::Point const p, guint state);
-static void spdc_pen_finish_segment(SPPenContext *pc, NR::Point p, guint state);
+static void spdc_pen_set_initial_point(SPPenContext *pc, Geom::Point const p);
+static void spdc_pen_set_subsequent_point(SPPenContext *const pc, Geom::Point const p, bool statusbar, guint status = 0);
+static void spdc_pen_set_ctrl(SPPenContext *pc, Geom::Point const p, guint state);
+static void spdc_pen_finish_segment(SPPenContext *pc, Geom::Point p, guint state);
static void spdc_pen_finish(SPPenContext *pc, gboolean closed);
static void pen_disable_events(SPPenContext *const pc);
static void pen_enable_events(SPPenContext *const pc);
-static NR::Point pen_drag_origin_w(0, 0);
+static Geom::Point pen_drag_origin_w(0, 0);
static bool pen_within_tolerance = false;
static SPDrawContextClass *pen_parent_class;
+static int pen_next_paraxial_direction(const SPPenContext *const pc, Geom::Point const &pt, Geom::Point const &origin, guint state);
+static void pen_set_to_nearest_horiz_vert(const SPPenContext *const pc, Geom::Point &pt, guint const state, bool snap);
+
+static int pen_last_paraxial_dir = 0; // last used direction in horizontal/vertical mode; 0 = horizontal, 1 = vertical
+
/**
* Register SPPenContext with Gdk and return its type.
*/
pc->c1 = NULL;
pc->cl0 = NULL;
pc->cl1 = NULL;
-
+
pc->events_disabled = 0;
- pc->polylines_only = false;
+ pc->num_clicks = 0;
pc->waiting_LPE = NULL;
+ pc->waiting_item = NULL;
}
/**
G_OBJECT_CLASS(pen_parent_class)->dispose(object);
- pc->polylines_only = false;
- pc->waiting_LPE = NULL;
if (pc->expecting_clicks_for_LPE > 0) {
// we received too few clicks to sanely set the parameter path so we remove the LPE from the item
sp_lpe_item_remove_current_path_effect(pc->waiting_item, false);
}
}
+void
+sp_pen_context_set_polyline_mode(SPPenContext *const pc) {
+ Inkscape::Preferences *prefs = Inkscape::Preferences::get();
+ guint mode = prefs->getInt("/tools/freehand/pen/freehand-mode", 0);
+ pc->polylines_only = (mode == 2 || mode == 3);
+ pc->polylines_paraxial = (mode == 3);
+}
+
/**
* Callback to initialize SPPenContext object.
*/
pc->anchor_statusbar = false;
- if (prefs_get_int_attribute("tools.freehand.pen", "selcue", 0) != 0) {
+ sp_pen_context_set_polyline_mode(pc);
+
+ Inkscape::Preferences *prefs = Inkscape::Preferences::get();
+ if (prefs->getBool("/tools/freehand/pen/selcue")) {
ec->enableSelectionCue();
}
}
static void
-pen_cancel (SPPenContext *const pc)
+pen_cancel (SPPenContext *const pc)
{
+ pc->num_clicks = 0;
pc->state = SP_PEN_CONTEXT_STOP;
spdc_reset_colors(pc);
sp_canvas_item_hide(pc->c0);
{
SPPenContext *pc = SP_PEN_CONTEXT(ec);
+ sp_event_context_discard_delayed_snap_event(ec);
+
if (pc->npoints != 0) {
pen_cancel (pc);
}
* Callback that sets key to value in pen context.
*/
static void
-sp_pen_context_set(SPEventContext *ec, gchar const *key, gchar const *val)
+sp_pen_context_set(SPEventContext *ec, Inkscape::Preferences::Entry *val)
{
SPPenContext *pc = SP_PEN_CONTEXT(ec);
+ Glib::ustring name = val->getEntryName();
- if (!strcmp(key, "mode")) {
- if ( val && !strcmp(val, "drag") ) {
+ if (name == "mode") {
+ if ( val->getString() == "drag" ) {
pc->mode = SP_PEN_CONTEXT_MODE_DRAG;
} else {
pc->mode = SP_PEN_CONTEXT_MODE_CLICK;
* Snaps new node relative to the previous node.
*/
static void
-spdc_endpoint_snap(SPPenContext const *const pc, NR::Point &p, guint const state)
+spdc_endpoint_snap(SPPenContext const *const pc, Geom::Point &p, guint const state)
{
- if (pc->npoints > 0) {
- spdc_endpoint_snap_rotation(pc, p, pc->p[0], state);
+ if ((state & GDK_CONTROL_MASK) && !pc->polylines_paraxial) { //CTRL enables angular snapping
+ if (pc->npoints > 0) {
+ spdc_endpoint_snap_rotation(pc, p, pc->p[0], state);
+ }
+ } else {
+ // We cannot use shift here to disable snapping because the shift-key is already used
+ // to toggle the paraxial direction; if the user wants to disable snapping (s)he will
+ // have to use the %-key, the menu, or the snap toolbar
+ if ((pc->npoints > 0) && pc->polylines_paraxial) {
+ // snap constrained
+ pen_set_to_nearest_horiz_vert(pc, p, state, true);
+ } else {
+ // snap freely
+ spdc_endpoint_snap_free(pc, p, state);
+ }
}
-
- spdc_endpoint_snap_free(pc, p, state);
}
/**
* Snaps new node's handle relative to the new node.
*/
static void
-spdc_endpoint_snap_handle(SPPenContext const *const pc, NR::Point &p, guint const state)
+spdc_endpoint_snap_handle(SPPenContext const *const pc, Geom::Point &p, guint const state)
{
g_return_if_fail(( pc->npoints == 2 ||
pc->npoints == 5 ));
- spdc_endpoint_snap_rotation(pc, p, pc->p[pc->npoints - 2], state);
- spdc_endpoint_snap_free(pc, p, state);
+ if ((state & GDK_CONTROL_MASK)) { //CTRL enables angular snapping
+ spdc_endpoint_snap_rotation(pc, p, pc->p[pc->npoints - 2], state);
+ } else {
+ if (!(state & GDK_SHIFT_MASK)) { //SHIFT disables all snapping, except the angular snapping above
+ spdc_endpoint_snap_free(pc, p, state);
+ }
+ }
}
-static gint
+static gint
sp_pen_context_item_handler(SPEventContext *ec, SPItem *item, GdkEvent *event)
{
SPPenContext *const pc = SP_PEN_CONTEXT(ec);
@@ -383,13 +419,13 @@ static gint pen_handle_button_press(SPPenContext *const pc, GdkEventButton const
SPDrawContext * const dc = SP_DRAW_CONTEXT(pc);
SPDesktop * const desktop = SP_EVENT_CONTEXT_DESKTOP(dc);
- NR::Point const event_w(bevent.x, bevent.y);
- NR::Point const event_dt(desktop->w2d(event_w));
+ Geom::Point const event_w(bevent.x, bevent.y);
+ Geom::Point event_dt(desktop->w2d(event_w));
SPEventContext *event_context = SP_EVENT_CONTEXT(pc);
gint ret = FALSE;
if (bevent.button == 1 && !event_context->space_panning
- // when the last click for a waiting LPE occurs we want to finish the path
+ // make sure this is not the last click for a waiting LPE (otherwise we want to finish the path)
&& pc->expecting_clicks_for_LPE != 1) {
if (Inkscape::have_viable_layer(desktop, dc->_message_context) == false) {
@@ -420,7 +456,7 @@ static gint pen_handle_button_press(SPPenContext *const pc, GdkEventButton const
case SP_PEN_CONTEXT_CLOSE:
break;
case SP_PEN_CONTEXT_STOP:
- /* This is allowed, if we just cancelled curve */
+ /* This is allowed, if we just canceled curve */
pc->state = SP_PEN_CONTEXT_POINT;
break;
default:
@@ -430,14 +466,22 @@ static gint pen_handle_button_press(SPPenContext *const pc, GdkEventButton const
case SP_PEN_CONTEXT_MODE_DRAG:
switch (pc->state) {
case SP_PEN_CONTEXT_STOP:
- /* This is allowed, if we just cancelled curve */
+ /* This is allowed, if we just canceled curve */
case SP_PEN_CONTEXT_POINT:
if (pc->npoints == 0) {
- if (bevent.state & GDK_CONTROL_MASK) {
- freehand_create_single_dot(event_context, event_dt, "tools.freehand.pen", bevent.state);
- ret = TRUE;
- break;
+ Geom::Point p;
+ if ((bevent.state & GDK_CONTROL_MASK) && (pc->polylines_only || pc->polylines_paraxial)) {
+ p = event_dt;
+ if (!(bevent.state & GDK_SHIFT_MASK)) {
+ SnapManager &m = desktop->namedview->snap_manager;
+ m.setup(desktop);
+ m.freeSnapReturnByRef(p, Inkscape::SNAPSOURCE_NODE_HANDLE);
+ m.unSetup();
+ }
+ spdc_create_single_dot(event_context, p, "/tools/freehand/pen", bevent.state);
+ ret = TRUE;
+ break;
}
// TODO: Perhaps it would be nicer to rearrange the following case
@@ -445,7 +489,6 @@ static gint pen_handle_button_press(SPPenContext *const pc, GdkEventButton const
/* Set start anchor */
pc->sa = anchor;
- NR::Point p;
if (anchor && !sp_pen_context_has_waiting_LPE(pc)) {
/* Adjust point to anchor if needed; if we have a waiting LPE, we need
a fresh path to be created so don't continue an existing one */
@@ -475,7 +518,7 @@ static gint pen_handle_button_press(SPPenContext *const pc, GdkEventButton const
/* Set end anchor */
pc->ea = anchor;
- NR::Point p;
+ Geom::Point p;
if (anchor) {
p = anchor->dp;
// we hit an anchor, will finish the curve (either with or without closing)
@@ -494,9 +537,6 @@ static gint pen_handle_button_press(SPPenContext *const pc, GdkEventButton const
p = event_dt;
spdc_endpoint_snap(pc, p, bevent.state); /* Snap node only if not hitting anchor. */
spdc_pen_set_subsequent_point(pc, p, true);
- if (pc->polylines_only) {
- spdc_pen_finish_segment(pc, p, bevent.state);
- }
}
}
@@ -516,23 +556,25 @@ static gint pen_handle_button_press(SPPenContext *const pc, GdkEventButton const
default:
break;
}
- } else if (bevent.button == 3 || pc->expecting_clicks_for_LPE == 1) { // when the last click for a waiting LPE occurs we want to finish the path
- if (pc->npoints != 0) {
-
- spdc_pen_finish_segment(pc, event_dt, bevent.state);
- if (pc->green_closed) {
- // finishing at the start anchor, close curve
- spdc_pen_finish(pc, TRUE);
- } else {
- // finishing at some other anchor, finish curve but not close
- spdc_pen_finish(pc, FALSE);
- }
-
- ret = TRUE;
+ } else if (pc->expecting_clicks_for_LPE == 1 && pc->npoints != 0) {
+ // when the last click for a waiting LPE occurs we want to finish the path
+ spdc_pen_finish_segment(pc, event_dt, bevent.state);
+ if (pc->green_closed) {
+ // finishing at the start anchor, close curve
+ spdc_pen_finish(pc, TRUE);
+ } else {
+ // finishing at some other anchor, finish curve but not close
+ spdc_pen_finish(pc, FALSE);
}
+
+ ret = TRUE;
+ } else if (bevent.button == 3 && pc->npoints != 0) {
+ // right click - finish path
+ spdc_pen_finish(pc, FALSE);
+ ret = TRUE;
}
- if (pc->expecting_clicks_for_LPE) {
+ if (pc->expecting_clicks_for_LPE > 0) {
--pc->expecting_clicks_for_LPE;
}
@@ -554,18 +596,18 @@ pen_handle_motion_notify(SPPenContext *const pc, GdkEventMotion const &mevent)
// allow scrolling
return FALSE;
}
-
+
if (pc->events_disabled) {
// skip motion events if pen events are disabled
return FALSE;
}
- NR::Point const event_w(mevent.x,
+ Geom::Point const event_w(mevent.x,
mevent.y);
if (pen_within_tolerance) {
- gint const tolerance = prefs_get_int_attribute_limited("options.dragtolerance",
- "value", 0, 0, 100);
- if ( NR::LInfty( event_w - pen_drag_origin_w ) < tolerance ) {
+ Inkscape::Preferences *prefs = Inkscape::Preferences::get();
+ gint const tolerance = prefs->getIntLimited("/options/dragtolerance/value", 0, 0, 100);
+ if ( Geom::LInfty( event_w - pen_drag_origin_w ) < tolerance ) {
return FALSE; // Do not drag if we're within tolerance from origin.
}
}
pen_within_tolerance = false;
/* Find desktop coordinates */
- NR::Point p = dt->w2d(event_w);
+ Geom::Point p = dt->w2d(event_w);
/* Test, whether we hit any anchor */
SPDrawAnchor *anchor = spdc_test_inside(pc, event_w);
spdc_endpoint_snap(pc, p, mevent.state);
spdc_pen_set_subsequent_point(pc, p, true);
ret = TRUE;
+ } else if (!sp_event_context_knot_mouseover(pc)) {
+ SnapManager &m = dt->namedview->snap_manager;
+ m.setup(dt);
+ m.preSnap(Inkscape::SnapCandidatePoint(p, Inkscape::SNAPSOURCE_NODE_HANDLE));
+ m.unSetup();
}
break;
case SP_PEN_CONTEXT_CONTROL:
@@ -613,10 +660,11 @@ pen_handle_motion_notify(SPPenContext *const pc, GdkEventMotion const &mevent)
if (!anchor) { /* Snap node only if not hitting anchor */
spdc_endpoint_snap(pc, p, mevent.state);
+ spdc_pen_set_subsequent_point(pc, p, true, mevent.state);
+ } else {
+ spdc_pen_set_subsequent_point(pc, anchor->dp, false, mevent.state);
}
- spdc_pen_set_subsequent_point(pc, p, !anchor);
-
if (anchor && !pc->anchor_statusbar) {
pc->_message_context->set(Inkscape::NORMAL_MESSAGE, _("<b>Click</b> or <b>click and drag</b> to close and finish the path."));
pc->anchor_statusbar = true;
pc->_message_context->clear();
pc->anchor_statusbar = false;
}
+ if (!sp_event_context_knot_mouseover(pc)) {
+ SnapManager &m = dt->namedview->snap_manager;
+ m.setup(dt);
+ m.preSnap(Inkscape::SnapCandidatePoint(p, Inkscape::SNAPSOURCE_NODE_HANDLE));
+ m.unSetup();
+ }
}
break;
case SP_PEN_CONTEXT_CONTROL:
/* This is perfectly valid */
break;
default:
+ if (!sp_event_context_knot_mouseover(pc)) {
+ SnapManager &m = dt->namedview->snap_manager;
+ m.setup(dt);
+ m.preSnap(Inkscape::SnapCandidatePoint(p, Inkscape::SNAPSOURCE_NODE_HANDLE));
+ m.unSetup();
+ }
break;
}
break;
@@ -681,10 +741,10 @@ pen_handle_button_release(SPPenContext *const pc, GdkEventButton const &revent)
SPDrawContext *dc = SP_DRAW_CONTEXT (pc);
- NR::Point const event_w(revent.x,
+ Geom::Point const event_w(revent.x,
revent.y);
/* Find desktop coordinates */
- NR::Point p = pc->desktop->w2d(event_w);
+ Geom::Point p = pc->desktop->w2d(event_w);
/* Test whether we hit any anchor. */
SPDrawAnchor *anchor = spdc_test_inside(pc, event_w);
ret = TRUE;
break;
case SP_PEN_CONTEXT_STOP:
- /* This is allowed, if we just cancelled curve */
+ /* This is allowed, if we just canceled curve */
pc->state = SP_PEN_CONTEXT_POINT;
ret = TRUE;
break;
@@ -740,10 +800,8 @@ pen_handle_button_release(SPPenContext *const pc, GdkEventButton const &revent)
switch (pc->state) {
case SP_PEN_CONTEXT_POINT:
case SP_PEN_CONTEXT_CONTROL:
- if (!pc->polylines_only) {
- spdc_endpoint_snap(pc, p, revent.state);
- spdc_pen_finish_segment(pc, p, revent.state);
- }
+ spdc_endpoint_snap(pc, p, revent.state);
+ spdc_pen_finish_segment(pc, p, revent.state);
break;
case SP_PEN_CONTEXT_CLOSE:
spdc_endpoint_snap(pc, p, revent.state);
// TODO: can we be sure that the path was created correctly?
// TODO: should we offer an option to collect the clicks in a list?
if (pc->expecting_clicks_for_LPE == 0 && sp_pen_context_has_waiting_LPE(pc)) {
- pc->polylines_only = false;
+ sp_pen_context_set_polyline_mode(pc);
SPEventContext *ec = SP_EVENT_CONTEXT(pc);
Inkscape::Selection *selection = sp_desktop_selection (ec->desktop);
pc->waiting_LPE->acceptParamPath(SP_PATH(selection->singleItem()));
selection->add(SP_OBJECT(pc->waiting_item));
pc->waiting_LPE = NULL;
- pc->polylines_only = false;
} else {
// the case that we need to create a new LPE and apply it to the just-drawn path is
// handled in spdc_check_for_and_apply_waiting_LPE() in draw-context.cpp
pen_handle_2button_press(SPPenContext *const pc, GdkEventButton const &bevent)
{
gint ret = FALSE;
- if (pc->npoints != 0 && bevent.button != 2) {
+ // only end on LMB double click. Otherwise horizontal scrolling causes ending of the path
+ if (pc->npoints != 0 && bevent.button == 1) {
spdc_pen_finish(pc, FALSE);
ret = TRUE;
}
if ( cubic &&
(*cubic)[2] != to_2geom(pc->p[0]) )
{
- NR::Point p2 = from_2geom((*cubic)[2]);
+ Geom::Point p2 = (*cubic)[2];
SP_CTRL(pc->c0)->moveto(p2);
sp_ctrlline_set_coords(SP_CTRLLINE(pc->cl0), p2, pc->p[0]);
sp_canvas_item_show (pc->c0);
} else {
// start anchor too
if (pc->green_anchor) {
- pc->green_anchor->dp += NR::Point(x, y);
+ pc->green_anchor->dp += Geom::Point(x, y);
}
}
// red
- pc->p[0] += NR::Point(x, y);
- pc->p[1] += NR::Point(x, y);
+ pc->p[0] += Geom::Point(x, y);
+ pc->p[1] += Geom::Point(x, y);
pen_redraw_all(pc);
}
Geom::CubicBezier const * cubic = dynamic_cast<Geom::CubicBezier const *>( pc->green_curve->last_segment() );
if ( cubic ) {
- pc->p[1] = pc->p[0] + from_2geom( (*cubic)[3] - (*cubic)[2] );
+ pc->p[1] = pc->p[0] + (Geom::Point)( (*cubic)[3] - (*cubic)[2] );
} else {
pc->p[1] = pc->p[0] + (1./3)*(pc->p[3] - pc->p[0]);
}
static gint
pen_handle_key_press(SPPenContext *const pc, GdkEvent *event)
{
+
gint ret = FALSE;
- gdouble const nudge = prefs_get_double_attribute_limited("options.nudgedistance", "value", 2, 0, 1000); // in px
+ Inkscape::Preferences *prefs = Inkscape::Preferences::get();
+ gdouble const nudge = prefs->getDoubleLimited("/options/nudgedistance/value", 2, 0, 1000); // in px
switch (get_group0_keyval (&event->key)) {
}
break;
+/* TODO: this is not yet enabled?? looks like some traces of the Geometry tool
case GDK_P:
case GDK_p:
if (MOD__SHIFT_ONLY) {
ret = TRUE;
}
break;
+*/
case GDK_U:
case GDK_u:
case GDK_g:
case GDK_G:
if (MOD__SHIFT_ONLY) {
- sp_selection_to_guides();
+ sp_selection_to_guides(SP_EVENT_CONTEXT(pc)->desktop);
ret = true;
}
break;
case GDK_BackSpace:
case GDK_Delete:
case GDK_KP_Delete:
- if (pc->green_curve->is_empty()) {
+ if ( pc->green_curve->is_empty() || (pc->green_curve->last_segment() == NULL) ) {
if (!pc->red_curve->is_empty()) {
pen_cancel (pc);
ret = TRUE;
break;
}
// The code below assumes that pc->green_curve has only ONE path !
- Geom::Path const & path = pc->green_curve->get_pathvector().back();
- Geom::Curve const * crv = &path.back_default();
+ Geom::Curve const * crv = pc->green_curve->last_segment();
pc->p[0] = crv->initialPoint();
if ( Geom::CubicBezier const * cubic = dynamic_cast<Geom::CubicBezier const *>(crv)) {
- pc->p[1] = from_2geom( (*cubic)[1] );
+ pc->p[1] = (*cubic)[1];
} else {
pc->p[1] = pc->p[0];
}
- NR::Point const pt(( pc->npoints < 4
- ? crv->finalPoint()
+ Geom::Point const pt(( pc->npoints < 4
+ ? (Geom::Point)(crv->finalPoint())
: pc->p[3] ));
pc->npoints = 2;
pc->green_curve->backspace();
sp_canvas_item_hide(pc->cl1);
pc->state = SP_PEN_CONTEXT_POINT;
spdc_pen_set_subsequent_point(pc, pt, true);
+ pen_last_paraxial_dir = !pen_last_paraxial_dir;
ret = TRUE;
}
break;
static void
-spdc_pen_set_initial_point(SPPenContext *const pc, NR::Point const p)
+spdc_pen_set_initial_point(SPPenContext *const pc, Geom::Point const p)
{
g_assert( pc->npoints == 0 );
* Show the status message for the current line/curve segment.
* This type of message always shows angle/distance as the last
* two parameters ("angle %3.2f°, distance %s").
- */
+ */
static void
-spdc_pen_set_angle_distance_status_message(SPPenContext *const pc, NR::Point const p, int pc_point_to_compare, gchar const *message)
+spdc_pen_set_angle_distance_status_message(SPPenContext *const pc, Geom::Point const p, int pc_point_to_compare, gchar const *message)
{
g_assert(pc != NULL);
g_assert((pc_point_to_compare == 0) || (pc_point_to_compare == 3)); // exclude control handles
g_assert(message != NULL);
SPDesktop *desktop = SP_EVENT_CONTEXT(pc)->desktop;
- NR::Point rel = p - pc->p[pc_point_to_compare];
- GString *dist = SP_PX_TO_METRIC_STRING(NR::L2(rel), desktop->namedview->getDefaultMetric());
- double angle = atan2(rel[NR::Y], rel[NR::X]) * 180 / M_PI;
- if (prefs_get_int_attribute("options.compassangledisplay", "value", 0) != 0)
+ Geom::Point rel = p - pc->p[pc_point_to_compare];
+ GString *dist = SP_PX_TO_METRIC_STRING(Geom::L2(rel), desktop->namedview->getDefaultMetric());
+ double angle = atan2(rel[Geom::Y], rel[Geom::X]) * 180 / M_PI;
+ Inkscape::Preferences *prefs = Inkscape::Preferences::get();
+ if (prefs->getBool("/options/compassangledisplay/value", 0) != 0)
angle = angle_to_compass (angle);
pc->_message_context->setF(Inkscape::IMMEDIATE_MESSAGE, message, angle, dist->str);
@@ -1185,7 +1248,7 @@ spdc_pen_set_angle_distance_status_message(SPPenContext *const pc, NR::Point con
}
static void
-spdc_pen_set_subsequent_point(SPPenContext *const pc, NR::Point const p, bool statusbar)
+spdc_pen_set_subsequent_point(SPPenContext *const pc, Geom::Point const p, bool statusbar, guint status)
{
g_assert( pc->npoints != 0 );
/* todo: Check callers to see whether 2 <= npoints is guaranteed. */
@@ -1195,15 +1258,29 @@ spdc_pen_set_subsequent_point(SPPenContext *const pc, NR::Point const p, bool st
pc->p[4] = p;
pc->npoints = 5;
pc->red_curve->reset();
- pc->red_curve->moveto(pc->p[0]);
bool is_curve;
- if (pc->p[1] != pc->p[0])
- {
- pc->red_curve->curveto(pc->p[1], p, p);
- is_curve = true;
- } else {
+ pc->red_curve->moveto(pc->p[0]);
+ if (pc->polylines_paraxial && !statusbar) {
+ // we are drawing horizontal/vertical lines and hit an anchor;
+ Geom::Point const origin = pc->p[0];
+ // if the previous point and the anchor are not aligned either horizontally or vertically...
+ if ((abs(p[Geom::X] - origin[Geom::X]) > 1e-9) && (abs(p[Geom::Y] - origin[Geom::Y]) > 1e-9)) {
+ // ...then we should draw an L-shaped path, consisting of two paraxial segments
+ Geom::Point intermed = p;
+ pen_set_to_nearest_horiz_vert(pc, intermed, status, false);
+ pc->red_curve->lineto(intermed);
+ }
pc->red_curve->lineto(p);
is_curve = false;
+ } else {
+ // one of the 'regular' modes
+ if (pc->p[1] != pc->p[0]) {
+ pc->red_curve->curveto(pc->p[1], p, p);
+ is_curve = true;
+ } else {
+ pc->red_curve->lineto(p);
+ is_curve = false;
+ }
}
sp_canvas_bpath_set_bpath(SP_CANVAS_BPATH(pc->red_bpath), pc->red_curve);
@@ -1217,7 +1294,7 @@ spdc_pen_set_subsequent_point(SPPenContext *const pc, NR::Point const p, bool st
}
static void
-spdc_pen_set_ctrl(SPPenContext *const pc, NR::Point const p, guint const state)
+spdc_pen_set_ctrl(SPPenContext *const pc, Geom::Point const p, guint const state)
{
sp_canvas_item_show(pc->c1);
sp_canvas_item_show(pc->cl1);
@@ -1237,7 +1314,7 @@ spdc_pen_set_ctrl(SPPenContext *const pc, NR::Point const p, guint const state)
bool is_symm = false;
if ( ( ( pc->mode == SP_PEN_CONTEXT_MODE_CLICK ) && ( state & GDK_CONTROL_MASK ) ) ||
( ( pc->mode == SP_PEN_CONTEXT_MODE_DRAG ) && !( state & GDK_SHIFT_MASK ) ) ) {
- NR::Point delta = p - pc->p[3];
+ Geom::Point delta = p - pc->p[3];
pc->p[2] = pc->p[3] - delta;
is_symm = true;
pc->red_curve->reset();
@@ -1260,8 +1337,14 @@ spdc_pen_set_ctrl(SPPenContext *const pc, NR::Point const p, guint const state)
}
static void
-spdc_pen_finish_segment(SPPenContext *const pc, NR::Point const /*p*/, guint const /*state*/)
+spdc_pen_finish_segment(SPPenContext *const pc, Geom::Point const p, guint const state)
{
+ if (pc->polylines_paraxial) {
+ pen_last_paraxial_dir = pen_next_paraxial_direction(pc, p, pc->p[0], state);
+ }
+
+ ++pc->num_clicks;
+
if (!pc->red_curve->is_empty()) {
pc->green_curve->append_continuous(pc->red_curve, 0.0625);
SPCurve *curve = pc->red_curve->copy();
return;
}
+ pc->num_clicks = 0;
+
pen_disable_events(pc);
-
+
SPDesktop *const desktop = pc->desktop;
pc->_message_context->clear();
desktop->messageStack()->flash(Inkscape::NORMAL_MESSAGE, _("Drawing finished"));
static void
pen_enable_events(SPPenContext *const pc) {
g_return_if_fail(pc->events_disabled != 0);
-
+
pc->events_disabled--;
}
sp_pen_context_wait_for_LPE_mouse_clicks(SPPenContext *pc, Inkscape::LivePathEffect::EffectType effect_type,
unsigned int num_clicks, bool use_polylines)
{
- g_print ("Now waiting for %s to be applied\n",
- Inkscape::LivePathEffect::LPETypeConverter.get_label(effect_type).c_str());
+ if (effect_type == Inkscape::LivePathEffect::INVALID_LPE)
+ return;
+
+ pc->waiting_LPE_type = effect_type;
pc->expecting_clicks_for_LPE = num_clicks;
pc->polylines_only = use_polylines;
- pc->waiting_LPE_type = effect_type;
+ pc->polylines_paraxial = false; // TODO: think if this is correct for all cases
+}
+
+void
+sp_pen_context_cancel_waiting_for_LPE(SPPenContext *pc)
+{
+ pc->waiting_LPE_type = Inkscape::LivePathEffect::INVALID_LPE;
+ pc->expecting_clicks_for_LPE = 0;
+ sp_pen_context_set_polyline_mode(pc);
+}
+
+static int pen_next_paraxial_direction(const SPPenContext *const pc,
+ Geom::Point const &pt, Geom::Point const &origin, guint state) {
+ /*
+ * after the first mouse click we determine whether the mouse pointer is closest to a
+ * horizontal or vertical segment; for all subsequent mouse clicks, we use the direction
+ * orthogonal to the last one; pressing Shift toggles the direction
+ */
+ // num_clicks is not reliable because spdc_pen_finish_segment is sometimes called too early
+ // (on first mouse release), in which case num_clicks immediately becomes 1.
+ // if (pc->num_clicks == 0) {
+
+ if (pc->green_curve->is_empty()) {
+ // first mouse click
+ double dist_h = fabs(pt[Geom::X] - origin[Geom::X]);
+ double dist_v = fabs(pt[Geom::Y] - origin[Geom::Y]);
+ int ret = (dist_h < dist_v) ? 1 : 0; // 0 = horizontal, 1 = vertical
+ pen_last_paraxial_dir = (state & GDK_SHIFT_MASK) ? 1 - ret : ret;
+ return pen_last_paraxial_dir;
+ } else {
+ // subsequent mouse click
+ return (state & GDK_SHIFT_MASK) ? pen_last_paraxial_dir : 1 - pen_last_paraxial_dir;
+ }
+}
+
+void pen_set_to_nearest_horiz_vert(const SPPenContext *const pc, Geom::Point &pt, guint const state, bool snap)
+{
+ Geom::Point const origin = pc->p[0];
+
+ int next_dir = pen_next_paraxial_direction(pc, pt, origin, state);
+
+ if (!snap) {
+ if (next_dir == 0) {
+ // line is forced to be horizontal
+ pt[Geom::Y] = origin[Geom::Y];
+ } else {
+ // line is forced to be vertical
+ pt[Geom::X] = origin[Geom::X];
+ }
+ } else {
+ // Create a horizontal or vertical constraint line
+ Inkscape::Snapper::SnapConstraint cl(origin, next_dir ? Geom::Point(0, 1) : Geom::Point(1, 0));
+
+ // Snap along the constraint line; if we didn't snap then still the constraint will be applied
+ SnapManager &m = pc->desktop->namedview->snap_manager;
+
+ Inkscape::Selection *selection = sp_desktop_selection (pc->desktop);
+ // selection->singleItem() is the item that is currently being drawn. This item will not be snapped to (to avoid self-snapping)
+ // TODO: Allow snapping to the stationary parts of the item, and only ignore the last segment
+
+ m.setup(pc->desktop, true, selection->singleItem());
+ m.constrainedSnapReturnByRef(pt, Inkscape::SNAPSOURCE_NODE_HANDLE, cl);
+ m.unSetup();
+ }
}
/*
@@ -1349,4 +1499,4 @@ sp_pen_context_wait_for_LPE_mouse_clicks(SPPenContext *pc, Inkscape::LivePathEff
fill-column:99
End:
*/
-// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :
+// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :