index 6644092dffb3298d2f6e034b016655652999aa7f..df73eb78e0496470ec00255661e57c5d0ca4ff14 100644 (file)
-#define INKSCAPE_CANVAS_GRID_C
-
-/*
- *
- * Copyright (C) Johan Engelen 2006-2007 <johan@shouraizou.nl>
+/** @file
+ * @brief Cartesian grid implementation
+ */
+/* Copyright (C) Johan Engelen 2006-2007 <johan@shouraizou.nl>
* Copyright (C) Lauris Kaplinski 2000
- *
+ * Abhishek Sharma
*/
+/* As a general comment, I am not exactly proud of how things are done.
+ * (for example the 'enable' widget and readRepr things)
+ * It does seem to work however. I intend to clean up and sort things out later, but that can take forever...
+ * Don't be shy to correct things.
+ */
#include "sp-canvas-util.h"
+#include "util/mathfns.h"
#include "display-forward.h"
#include <libnr/nr-pixops.h>
#include "desktop-handles.h"
#include "desktop.h"
#include "../document.h"
+#include "preferences.h"
#include "canvas-grid.h"
#include "canvas-axonomgrid.h"
+using Inkscape::DocumentUndo;
+
namespace Inkscape {
+static gchar const *const grid_name[] = {
+ N_("Rectangular grid"),
+ N_("Axonometric grid")
+};
+static gchar const *const grid_svgname[] = {
+ "xygrid",
+ "axonomgrid"
+};
+
+
+// ##########################################################
+// Grid CanvasItem
static void grid_canvasitem_class_init (GridCanvasItemClass *klass);
static void grid_canvasitem_init (GridCanvasItem *grid);
static void grid_canvasitem_destroy (GtkObject *object);
-static void grid_canvasitem_update (SPCanvasItem *item, NR::Matrix const &affine, unsigned int flags);
+static void grid_canvasitem_update (SPCanvasItem *item, Geom::Matrix const &affine, unsigned int flags);
static void grid_canvasitem_render (SPCanvasItem *item, SPCanvasBuf *buf);
static SPCanvasItemClass * parent_class;
if (!grid_canvasitem_type) {
GtkTypeInfo grid_canvasitem_info = {
- "GridCanvasItem",
+ (gchar *)"GridCanvasItem",
sizeof (GridCanvasItem),
sizeof (GridCanvasItemClass),
(GtkClassInitFunc) grid_canvasitem_class_init,
{
GridCanvasItem *gridcanvasitem = INKSCAPE_GRID_CANVASITEM (item);
- sp_canvas_prepare_buffer (buf);
-
- if (gridcanvasitem->grid) gridcanvasitem->grid->Render(buf);
+ if ( gridcanvasitem->grid && gridcanvasitem->grid->isVisible() ) {
+ sp_canvas_prepare_buffer (buf);
+ gridcanvasitem->grid->Render(buf);
+ }
}
static void
-grid_canvasitem_update (SPCanvasItem *item, NR::Matrix const &affine, unsigned int flags)
+grid_canvasitem_update (SPCanvasItem *item, Geom::Matrix const &affine, unsigned int flags)
{
GridCanvasItem *gridcanvasitem = INKSCAPE_GRID_CANVASITEM (item);
@@ -135,12 +156,11 @@ grid_canvasitem_update (SPCanvasItem *item, NR::Matrix const &affine, unsigned i
NULL /* order_changed */
};
-CanvasGrid::CanvasGrid(SPNamedView * nv, Inkscape::XML::Node * in_repr)
+CanvasGrid::CanvasGrid(SPNamedView * nv, Inkscape::XML::Node * in_repr, SPDocument *in_doc, GridType type)
+ : visible(true), gridtype(type)
{
- snapenabled = true;
- visible = true;
-
repr = in_repr;
+ doc = in_doc;
if (repr) {
repr->addListener (&_repr_events, this);
}
}
}
+const char *
+CanvasGrid::getName()
+{
+ return _(grid_name[gridtype]);
+}
+
+const char *
+CanvasGrid::getSVGName()
+{
+ return grid_svgname[gridtype];
+}
+
+GridType
+CanvasGrid::getGridType()
+{
+ return gridtype;
+}
+
+
+char const *
+CanvasGrid::getName(GridType type)
+{
+ return _(grid_name[type]);
+}
+
+char const *
+CanvasGrid::getSVGName(GridType type)
+{
+ return grid_svgname[type];
+}
+
+GridType
+CanvasGrid::getGridTypeFromSVGName(char const *typestr)
+{
+ if (!typestr) return GRID_RECTANGULAR;
+
+ gint t = 0;
+ for (t = GRID_MAXTYPENR; t >= 0; t--) { //this automatically defaults to grid0 which is rectangular grid
+ if (!strcmp(typestr, grid_svgname[t])) break;
+ }
+ return (GridType) t;
+}
+
+GridType
+CanvasGrid::getGridTypeFromName(char const *typestr)
+{
+ if (!typestr) return GRID_RECTANGULAR;
+
+ gint t = 0;
+ for (t = GRID_MAXTYPENR; t >= 0; t--) { //this automatically defaults to grid0 which is rectangular grid
+ if (!strcmp(typestr, _(grid_name[t]))) break;
+ }
+ return (GridType) t;
+}
+
+
/*
* writes an <inkscape:grid> child to repr.
*/
void
-CanvasGrid::writeNewGridToRepr(Inkscape::XML::Node * repr, const char * gridtype)
+CanvasGrid::writeNewGridToRepr(Inkscape::XML::Node * repr, SPDocument * doc, GridType gridtype)
{
if (!repr) return;
- if (!gridtype) return;
+ if (gridtype > GRID_MAXTYPENR) return;
// first create the child xml node, then hook it to repr. This order is important, to not set off listeners to repr before the new node is complete.
- Inkscape::XML::Document *xml_doc = sp_document_repr_doc(sp_desktop_document(SP_ACTIVE_DESKTOP));
+ Inkscape::XML::Document *xml_doc = doc->getReprDoc();
Inkscape::XML::Node *newnode;
newnode = xml_doc->createElement("inkscape:grid");
- newnode->setAttribute("type",gridtype);
+ newnode->setAttribute("type", getSVGName(gridtype));
repr->appendChild(newnode);
+ Inkscape::GC::release(newnode);
- // FIXME: add this to history?
-// sp_document_done(current_document, SP_VERB_DIALOG_XML_EDITOR,
-// _("Create new element node"));
+ DocumentUndo::done(doc, SP_VERB_DIALOG_NAMEDVIEW, _("Create new grid"));
}
/*
* Creates a new CanvasGrid object of type gridtype
*/
CanvasGrid*
-CanvasGrid::NewGrid(SPNamedView * nv, Inkscape::XML::Node * in_repr, const char * gridtype)
+CanvasGrid::NewGrid(SPNamedView * nv, Inkscape::XML::Node * repr, SPDocument * doc, GridType gridtype)
{
- if (!in_repr) return NULL;
- if (!gridtype) return NULL;
+ if (!repr) return NULL;
+ if (!doc) {
+ g_error("CanvasGrid::NewGrid - doc==NULL");
+ return NULL;
+ }
- if (!strcmp(gridtype,"xygrid")) {
- return (CanvasGrid*) new CanvasXYGrid(nv, in_repr);
- } else if (!strcmp(gridtype,"axonometric")) {
- return (CanvasGrid*) new CanvasAxonomGrid(nv, in_repr);
+ switch (gridtype) {
+ case GRID_RECTANGULAR:
+ return (CanvasGrid*) new CanvasXYGrid(nv, repr, doc);
+ case GRID_AXONOMETRIC:
+ return (CanvasGrid*) new CanvasAxonomGrid(nv, repr, doc);
}
return NULL;
CanvasGrid::createCanvasItem(SPDesktop * desktop)
{
if (!desktop) return NULL;
- //Johan: I think for multiple desktops it is best if each has their own canvasitem, but share the same CanvasGrid object; that is what this function is for.
+// Johan: I think for multiple desktops it is best if each has their own canvasitem,
+// but share the same CanvasGrid object; that is what this function is for.
// check if there is already a canvasitem on this desktop linking to this grid
for (GSList *l = canvasitems; l != NULL; l = l->next) {
GridCanvasItem * item = INKSCAPE_GRID_CANVASITEM( sp_canvas_item_new(sp_desktop_gridgroup(desktop), INKSCAPE_TYPE_GRID_CANVASITEM, NULL) );
item->grid = this;
- if (desktop->gridsEnabled()) {
- sp_canvas_item_show(SP_CANVAS_ITEM(item));
- } else {
- sp_canvas_item_hide(SP_CANVAS_ITEM(item));
- }
+ sp_canvas_item_show(SP_CANVAS_ITEM(item));
gtk_object_ref(GTK_OBJECT(item)); // since we're keeping a link to this item, we need to bump up the ref count
canvasitems = g_slist_prepend(canvasitems, item);
return item;
}
-
-void
-CanvasGrid::hide()
+Gtk::Widget *
+CanvasGrid::newWidget()
{
- for (GSList *l = canvasitems; l != NULL; l = l->next) {
- sp_canvas_item_hide ( SP_CANVAS_ITEM(l->data) );
- }
- visible = false;
- disable_snapping(); // temporary hack, because at the moment visibilty and snapping are linked
-}
-
-void
-CanvasGrid::show()
-{
- for (GSList *l = canvasitems; l != NULL; l = l->next) {
- sp_canvas_item_show ( SP_CANVAS_ITEM(l->data) );
- }
- visible = true;
- enable_snapping(); // temporary hack, because at the moment visibilty and snapping are linked
-}
-
-void
-CanvasGrid::set_visibility(bool visible)
-{
- this->visible = visible;
- if(visible) {
- show();
- } else {
- hide();
+ Gtk::VBox * vbox = Gtk::manage( new Gtk::VBox() );
+ Gtk::Label * namelabel = Gtk::manage(new Gtk::Label("", Gtk::ALIGN_CENTER) );
+
+ Glib::ustring str("<b>");
+ str += getName();
+ str += "</b>";
+ namelabel->set_markup(str);
+ vbox->pack_start(*namelabel, true, true);
+
+ Inkscape::UI::Widget::RegisteredCheckButton * _rcb_enabled = Gtk::manage(
+ new Inkscape::UI::Widget::RegisteredCheckButton( _("_Enabled"),
+ _("Determines whether to snap to this grid or not. Can be 'on' for invisible grids."),
+ "enabled", _wr, false, repr, doc) );
+
+ Inkscape::UI::Widget::RegisteredCheckButton * _rcb_snap_visible_only = Gtk::manage(
+ new Inkscape::UI::Widget::RegisteredCheckButton( _("Snap to visible _grid lines only"),
+ _("When zoomed out, not all grid lines will be displayed. Only the visible ones will be snapped to"),
+ "snapvisiblegridlinesonly", _wr, true, repr, doc) );
+
+ Inkscape::UI::Widget::RegisteredCheckButton * _rcb_visible = Gtk::manage(
+ new Inkscape::UI::Widget::RegisteredCheckButton( _("_Visible"),
+ _("Determines whether the grid is displayed or not. Objects are still snapped to invisible grids."),
+ "visible", _wr, true, repr, doc) );
+
+ vbox->pack_start(*_rcb_enabled, true, true);
+ vbox->pack_start(*_rcb_visible, true, true);
+ vbox->pack_start(*_rcb_snap_visible_only, true, true);
+ Gtk::Widget * gridwdg = newSpecificWidget();
+ vbox->pack_start(*gridwdg, true, true);
+
+ std::list<Gtk::Widget*> slaves;
+ slaves.push_back(_rcb_visible);
+ slaves.push_back(_rcb_snap_visible_only);
+ slaves.push_back(gridwdg);
+ _rcb_enabled->setSlaveWidgets(slaves);
+
+ // set widget values
+ _rcb_visible->setActive(visible);
+ if (snapper != NULL) {
+ _rcb_enabled->setActive(snapper->getEnabled());
+ _rcb_snap_visible_only->setActive(snapper->getSnapVisibleOnly());
}
-}
-void
-CanvasGrid::toggle_visibility()
-{
- visible = !visible;
- set_visibility(visible);
+ return dynamic_cast<Gtk::Widget *> (vbox);
}
void
-CanvasGrid::on_repr_attr_changed (Inkscape::XML::Node * repr, const gchar *key, const gchar *oldval, const gchar *newval, bool is_interactive, void * data)
+CanvasGrid::on_repr_attr_changed(Inkscape::XML::Node *repr, gchar const *key, gchar const *oldval, gchar const *newval, bool is_interactive, void *data)
{
if (!data)
return;
@@ -281,16 +367,21 @@ CanvasGrid::on_repr_attr_changed (Inkscape::XML::Node * repr, const gchar *key,
((CanvasGrid*) data)->onReprAttrChanged(repr, key, oldval, newval, is_interactive);
}
+bool CanvasGrid::isEnabled()
+{
+ if (snapper == NULL) {
+ return false;
+ }
+ return snapper->getEnabled();
+}
// ##########################################################
// CanvasXYGrid
-static void grid_hline (SPCanvasBuf *buf, gint y, gint xs, gint xe, guint32 rgba);
-static void grid_vline (SPCanvasBuf *buf, gint x, gint ys, gint ye, guint32 rgba);
-
/**
+* "attach_all" function
* A DIRECT COPY-PASTE FROM DOCUMENT-PROPERTIES.CPP TO QUICKLY GET RESULTS
*
* Helper function that attachs widgets in a 3xn table. The widgets come in an
@@ -302,97 +393,53 @@ static void grid_vline (SPCanvasBuf *buf, gint x, gint ys, gint ye, guint32 rgba
#define SPACE_SIZE_X 15
#define SPACE_SIZE_Y 10
static inline void
-attach_all (Gtk::Table &table, const Gtk::Widget *arr[], unsigned size, int start = 0)
+attach_all(Gtk::Table &table, Gtk::Widget const *const arr[], unsigned size, int start = 0)
{
- for (unsigned i=0, r=start; i<size/sizeof(Gtk::Widget*); i+=2)
- {
- if (arr[i] && arr[i+1])
- {
+ for (unsigned i=0, r=start; i<size/sizeof(Gtk::Widget*); i+=2) {
+ if (arr[i] && arr[i+1]) {
table.attach (const_cast<Gtk::Widget&>(*arr[i]), 1, 2, r, r+1,
- Gtk::FILL|Gtk::EXPAND, (Gtk::AttachOptions)0,0,0);
+ Gtk::FILL|Gtk::EXPAND, (Gtk::AttachOptions)0,0,0);
table.attach (const_cast<Gtk::Widget&>(*arr[i+1]), 2, 3, r, r+1,
- Gtk::FILL|Gtk::EXPAND, (Gtk::AttachOptions)0,0,0);
- }
- else
- {
- if (arr[i+1])
+ Gtk::FILL|Gtk::EXPAND, (Gtk::AttachOptions)0,0,0);
+ } else {
+ if (arr[i+1]) {
table.attach (const_cast<Gtk::Widget&>(*arr[i+1]), 1, 3, r, r+1,
- Gtk::FILL|Gtk::EXPAND, (Gtk::AttachOptions)0,0,0);
- else if (arr[i])
- {
+ Gtk::FILL|Gtk::EXPAND, (Gtk::AttachOptions)0,0,0);
+ } else if (arr[i]) {
Gtk::Label& label = reinterpret_cast<Gtk::Label&> (const_cast<Gtk::Widget&>(*arr[i]));
label.set_alignment (0.0);
table.attach (label, 0, 3, r, r+1,
- Gtk::FILL|Gtk::EXPAND, (Gtk::AttachOptions)0,0,0);
- }
- else
- {
+ Gtk::FILL|Gtk::EXPAND, (Gtk::AttachOptions)0,0,0);
+ } else {
Gtk::HBox *space = manage (new Gtk::HBox);
space->set_size_request (SPACE_SIZE_X, SPACE_SIZE_Y);
table.attach (*space, 0, 1, r, r+1,
- (Gtk::AttachOptions)0, (Gtk::AttachOptions)0,0,0);
+ (Gtk::AttachOptions)0, (Gtk::AttachOptions)0,0,0);
}
}
++r;
}
}
-CanvasXYGrid::CanvasXYGrid (SPNamedView * nv, Inkscape::XML::Node * in_repr)
- : CanvasGrid(nv, in_repr), table(1, 1)
+CanvasXYGrid::CanvasXYGrid (SPNamedView * nv, Inkscape::XML::Node * in_repr, SPDocument * in_doc)
+ : CanvasGrid(nv, in_repr, in_doc, GRID_RECTANGULAR)
{
- origin[NR::X] = origin[NR::Y] = 0.0;
-// nv->gridcolor = (nv->gridcolor & 0xff) | (DEFAULTGRIDCOLOR & 0xffffff00);
-// case SP_ATTR_GRIDOPACITY:
-// nv->gridcolor = (nv->gridcolor & 0xffffff00) | (DEFAULTGRIDCOLOR & 0xff);
- color = 0xff3f3f20;
- empcolor = 0xFF3F3F40;
- empspacing = 5;
- spacing[NR::X] = spacing[NR::Y] = 8.0;
- gridunit = &sp_unit_get_by_id(SP_UNIT_PX);
-
- snapper = new CanvasXYGridSnapper(this, namedview, 0);
-
- // initialize widgets:
- vbox.set_border_width(2);
- table.set_spacings(2);
- vbox.pack_start(table, false, false, 0);
-
- _rumg.init (_("Grid _units:"), "units", _wr, repr);
- _rsu_ox.init (_("_Origin X:"), _("X coordinate of grid origin"),
- "originx", _rumg, _wr, repr);
- _rsu_oy.init (_("O_rigin Y:"), _("Y coordinate of grid origin"),
- "originy", _rumg, _wr, repr);
- _rsu_sx.init (_("Spacing _X:"), _("Distance between vertical grid lines"),
- "spacingx", _rumg, _wr, repr);
- _rsu_sy.init (_("Spacing _Y:"), _("Distance between horizontal grid lines"),
- "spacingy", _rumg, _wr, repr);
- _rcp_gcol.init (_("Grid line _color:"), _("Grid line color"),
- _("Color of grid lines"), "color", "opacity", _wr, repr);
- _rcp_gmcol.init (_("Ma_jor grid line color:"), _("Major grid line color"),
- _("Color of the major (highlighted) grid lines"),
- "empcolor", "empopacity", _wr, repr);
- _rsi.init (_("_Major grid line every:"), _("lines"), "empspacing", _wr, repr);
-
- const Gtk::Widget* widget_array[] =
- {
- 0, _rcbgrid._button,
- _rumg._label, _rumg._sel,
- 0, _rsu_ox.getSU(),
- 0, _rsu_oy.getSU(),
- 0, _rsu_sx.getSU(),
- 0, _rsu_sy.getSU(),
- _rcp_gcol._label, _rcp_gcol._cp,
- 0, 0,
- _rcp_gmcol._label, _rcp_gmcol._cp,
- _rsi._label, &_rsi._hbox,
- };
-
- attach_all (table, widget_array, sizeof(widget_array));
-
- vbox.show();
+ Inkscape::Preferences *prefs = Inkscape::Preferences::get();
+ gridunit = sp_unit_get_by_abbreviation( prefs->getString("/options/grids/xy/units").data() );
+ if (!gridunit)
+ gridunit = &sp_unit_get_by_id(SP_UNIT_PX);
+ origin[Geom::X] = sp_units_get_pixels(prefs->getDouble("/options/grids/xy/origin_x", 0.0), *gridunit);
+ origin[Geom::Y] = sp_units_get_pixels(prefs->getDouble("/options/grids/xy/origin_y", 0.0), *gridunit);
+ color = prefs->getInt("/options/grids/xy/color", 0x0000ff20);
+ empcolor = prefs->getInt("/options/grids/xy/empcolor", 0x0000ff40);
+ empspacing = prefs->getInt("/options/grids/xy/empspacing", 5);
+ spacing[Geom::X] = sp_units_get_pixels(prefs->getDouble("/options/grids/xy/spacing_x", 0.0), *gridunit);
+ spacing[Geom::Y] = sp_units_get_pixels(prefs->getDouble("/options/grids/xy/spacing_y", 0.0), *gridunit);
+ render_dotted = prefs->getBool("/options/grids/xy/dotted", false);
+
+ snapper = new CanvasXYGridSnapper(this, &namedview->snap_manager, 0);
if (repr) readRepr();
- updateWidgets();
}
CanvasXYGrid::~CanvasXYGrid ()
/* fixme: Collect all these length parsing methods and think common sane API */
-static gboolean sp_nv_read_length(const gchar *str, guint base, gdouble *val, const SPUnit **unit)
+static gboolean
+sp_nv_read_length(gchar const *str, guint base, gdouble *val, SPUnit const **unit)
{
if (!str) {
return FALSE;
@@ -453,7 +501,7 @@ static gboolean sp_nv_read_length(const gchar *str, guint base, gdouble *val, co
return FALSE;
}
-static gboolean sp_nv_read_opacity(const gchar *str, guint32 *color)
+static gboolean sp_nv_read_opacity(gchar const *str, guint32 *color)
{
if (!str) {
return FALSE;
return TRUE;
}
+/** If the passed scalar is invalid (<=0), then set the widget and the scalar
+ to use the given old value.
+
+ @param oldVal Old value to use if the new one is invalid.
+ @param pTarget The scalar to validate.
+ @param widget Widget associated with the scalar.
+*/
+static void validateScalar(double oldVal,
+ double* pTarget)
+{
+ // Avoid nullness.
+ if ( pTarget == NULL )
+ return;
+
+ // Invalid new value?
+ if ( *pTarget <= 0 ) {
+ // If the old value is somehow invalid as well, then default to 1.
+ if ( oldVal <= 0 )
+ oldVal = 1;
+ // Reset the scalar and associated widget to the old value.
+ *pTarget = oldVal;
+ } //if
+
+} //validateScalar
+
+
+/** If the passed int is invalid (<=0), then set the widget and the int
+ to use the given old value.
+
+ @param oldVal Old value to use if the new one is invalid.
+ @param pTarget The int to validate.
+ @param widget Widget associated with the int.
+*/
+static void validateInt(gint oldVal,
+ gint* pTarget)
+{
+ // Avoid nullness.
+ if ( pTarget == NULL )
+ return;
+
+ // Invalid new value?
+ if ( *pTarget <= 0 ) {
+ // If the old value is somehow invalid as well, then default to 1.
+ if ( oldVal <= 0 )
+ oldVal = 1;
+
+ // Reset the int and associated widget to the old value.
+ *pTarget = oldVal;
+ } //if
+
+} //validateInt
void
CanvasXYGrid::readRepr()
{
- gchar const* value;
+ gchar const *value;
if ( (value = repr->attribute("originx")) ) {
- sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &origin[NR::X], &gridunit);
- origin[NR::X] = sp_units_get_pixels(origin[NR::X], *(gridunit));
+ sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &origin[Geom::X], &gridunit);
+ origin[Geom::X] = sp_units_get_pixels(origin[Geom::X], *(gridunit));
}
+
if ( (value = repr->attribute("originy")) ) {
- sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &origin[NR::Y], &gridunit);
- origin[NR::Y] = sp_units_get_pixels(origin[NR::Y], *(gridunit));
+ sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &origin[Geom::Y], &gridunit);
+ origin[Geom::Y] = sp_units_get_pixels(origin[Geom::Y], *(gridunit));
}
if ( (value = repr->attribute("spacingx")) ) {
- sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &spacing[NR::X], &gridunit);
- spacing[NR::X] = sp_units_get_pixels(spacing[NR::X], *(gridunit));
+ double oldVal = spacing[Geom::X];
+ sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &spacing[Geom::X], &gridunit);
+ validateScalar( oldVal, &spacing[Geom::X]);
+ spacing[Geom::X] = sp_units_get_pixels(spacing[Geom::X], *(gridunit));
+
}
if ( (value = repr->attribute("spacingy")) ) {
- sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &spacing[NR::Y], &gridunit);
- spacing[NR::Y] = sp_units_get_pixels(spacing[NR::Y], *(gridunit));
+ double oldVal = spacing[Geom::Y];
+ sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &spacing[Geom::Y], &gridunit);
+ validateScalar( oldVal, &spacing[Geom::Y]);
+ spacing[Geom::Y] = sp_units_get_pixels(spacing[Geom::Y], *(gridunit));
+
}
if ( (value = repr->attribute("color")) ) {
}
if ( (value = repr->attribute("empspacing")) ) {
+ gint oldVal = empspacing;
empspacing = atoi(value);
+ validateInt( oldVal, &empspacing);
+ }
+
+ if ( (value = repr->attribute("dotted")) ) {
+ render_dotted = (strcmp(value,"false") != 0 && strcmp(value, "0") != 0);
+ }
+
+ if ( (value = repr->attribute("visible")) ) {
+ visible = (strcmp(value,"false") != 0 && strcmp(value, "0") != 0);
+ }
+
+ if ( (value = repr->attribute("enabled")) ) {
+ g_assert(snapper != NULL);
+ snapper->setEnabled(strcmp(value,"false") != 0 && strcmp(value, "0") != 0);
+ }
+
+ if ( (value = repr->attribute("snapvisiblegridlinesonly")) ) {
+ g_assert(snapper != NULL);
+ snapper->setSnapVisibleOnly(strcmp(value,"false") != 0 && strcmp(value, "0") != 0);
}
for (GSList *l = canvasitems; l != NULL; l = l->next) {
* Called when XML node attribute changed; updates dialog widgets if change was not done by widgets themselves.
*/
void
-CanvasXYGrid::onReprAttrChanged (Inkscape::XML::Node * repr, const gchar *key, const gchar *oldval, const gchar *newval, bool is_interactive)
+CanvasXYGrid::onReprAttrChanged(Inkscape::XML::Node */*repr*/, gchar const */*key*/, gchar const */*oldval*/, gchar const */*newval*/, bool /*is_interactive*/)
{
readRepr();
@@ -536,10 +662,97 @@ CanvasXYGrid::onReprAttrChanged (Inkscape::XML::Node * repr, const gchar *key, c
-Gtk::Widget &
-CanvasXYGrid::getWidget()
+Gtk::Widget *
+CanvasXYGrid::newSpecificWidget()
{
- return vbox;
+ Gtk::Table * table = Gtk::manage( new Gtk::Table(1,1) );
+
+ Inkscape::UI::Widget::RegisteredUnitMenu *_rumg = Gtk::manage( new Inkscape::UI::Widget::RegisteredUnitMenu(
+ _("Grid _units:"), "units", _wr, repr, doc) );
+ Inkscape::UI::Widget::RegisteredScalarUnit *_rsu_ox = Gtk::manage( new Inkscape::UI::Widget::RegisteredScalarUnit(
+ _("_Origin X:"), _("X coordinate of grid origin"), "originx", *_rumg, _wr, repr, doc) );
+ Inkscape::UI::Widget::RegisteredScalarUnit *_rsu_oy = Gtk::manage( new Inkscape::UI::Widget::RegisteredScalarUnit(
+ _("O_rigin Y:"), _("Y coordinate of grid origin"), "originy", *_rumg, _wr, repr, doc) );
+ Inkscape::UI::Widget::RegisteredScalarUnit *_rsu_sx = Gtk::manage( new Inkscape::UI::Widget::RegisteredScalarUnit(
+ _("Spacing _X:"), _("Distance between vertical grid lines"), "spacingx", *_rumg, _wr, repr, doc) );
+ Inkscape::UI::Widget::RegisteredScalarUnit *_rsu_sy = Gtk::manage( new Inkscape::UI::Widget::RegisteredScalarUnit(
+ _("Spacing _Y:"), _("Distance between horizontal grid lines"), "spacingy", *_rumg, _wr, repr, doc) );
+
+ Inkscape::UI::Widget::RegisteredColorPicker *_rcp_gcol = Gtk::manage(
+ new Inkscape::UI::Widget::RegisteredColorPicker(
+ _("Grid line _color:"), _("Grid line color"), _("Color of grid lines"),
+ "color", "opacity", _wr, repr, doc));
+
+ Inkscape::UI::Widget::RegisteredColorPicker *_rcp_gmcol = Gtk::manage(
+ new Inkscape::UI::Widget::RegisteredColorPicker(
+ _("Ma_jor grid line color:"), _("Major grid line color"),
+ _("Color of the major (highlighted) grid lines"), "empcolor", "empopacity",
+ _wr, repr, doc));
+
+ Inkscape::UI::Widget::RegisteredSuffixedInteger *_rsi = Gtk::manage( new Inkscape::UI::Widget::RegisteredSuffixedInteger(
+ _("_Major grid line every:"), "", _("lines"), "empspacing", _wr, repr, doc) );
+
+ table->set_spacings(2);
+
+_wr.setUpdating (true);
+
+ _rsu_ox->setDigits(4);
+ _rsu_ox->setIncrements(0.1, 1.0);
+
+ _rsu_oy->setDigits(4);
+ _rsu_oy->setIncrements(0.1, 1.0);
+
+ _rsu_sx->setDigits(4);
+ _rsu_sx->setIncrements(0.1, 1.0);
+
+ _rsu_sy->setDigits(4);
+ _rsu_sy->setIncrements(0.1, 1.0);
+
+ Inkscape::UI::Widget::RegisteredCheckButton * _rcb_dotted = Gtk::manage(
+ new Inkscape::UI::Widget::RegisteredCheckButton( _("_Show dots instead of lines"),
+ _("If set, displays dots at gridpoints instead of gridlines"),
+ "dotted", _wr, false, repr, doc) );
+_wr.setUpdating (false);
+
+ Gtk::Widget const *const widget_array[] = {
+ 0, _rumg,
+ 0, _rsu_ox,
+ 0, _rsu_oy,
+ 0, _rsu_sx,
+ 0, _rsu_sy,
+ _rcp_gcol->_label, _rcp_gcol,
+ 0, 0,
+ _rcp_gmcol->_label, _rcp_gmcol,
+ 0, _rsi,
+ 0, _rcb_dotted,
+ };
+
+ attach_all (*table, widget_array, sizeof(widget_array));
+
+ // set widget values
+ _rumg->setUnit (gridunit);
+
+ gdouble val;
+ val = origin[Geom::X];
+ val = sp_pixels_get_units (val, *(gridunit));
+ _rsu_ox->setValue (val);
+ val = origin[Geom::Y];
+ val = sp_pixels_get_units (val, *(gridunit));
+ _rsu_oy->setValue (val);
+ val = spacing[Geom::X];
+ double gridx = sp_pixels_get_units (val, *(gridunit));
+ _rsu_sx->setValue (gridx);
+ val = spacing[Geom::Y];
+ double gridy = sp_pixels_get_units (val, *(gridunit));
+ _rsu_sy->setValue (gridy);
+
+ _rcp_gcol->setRgba32 (color);
+ _rcp_gmcol->setRgba32 (empcolor);
+ _rsi->setValue (empspacing);
+
+ _rcb_dotted->setActive(render_dotted);
+
+ return table;
}
void
CanvasXYGrid::updateWidgets()
{
+/*
if (_wr.isUpdating()) return;
_wr.setUpdating (true);
-// _rrb_gridtype.setValue (nv->gridtype);
+ _rcb_visible.setActive(visible);
+ if (snapper != NULL) {
+ _rcb_enabled.setActive(snapper->getEnabled());
+ }
+
_rumg.setUnit (gridunit);
gdouble val;
- val = origin[NR::X];
+ val = origin[Geom::X];
val = sp_pixels_get_units (val, *(gridunit));
_rsu_ox.setValue (val);
- val = origin[NR::Y];
+ val = origin[Geom::Y];
val = sp_pixels_get_units (val, *(gridunit));
_rsu_oy.setValue (val);
- val = spacing[NR::X];
+ val = spacing[Geom::X];
double gridx = sp_pixels_get_units (val, *(gridunit));
_rsu_sx.setValue (gridx);
- val = spacing[NR::Y];
+ val = spacing[Geom::Y];
double gridy = sp_pixels_get_units (val, *(gridunit));
_rsu_sy.setValue (gridy);
_rcp_gmcol.setRgba32 (empcolor);
_rsi.setValue (empspacing);
+ _rcb_dotted.setActive(render_dotted);
+
_wr.setUpdating (false);
return;
+*/
}
void
-CanvasXYGrid::Update (NR::Matrix const &affine, unsigned int flags)
+CanvasXYGrid::Update (Geom::Matrix const &affine, unsigned int /*flags*/)
{
ow = origin * affine;
sw = spacing * affine;
- sw -= NR::Point(affine[4], affine[5]);
+ sw -= Geom::Point(affine[4], affine[5]);
for(int dim = 0; dim < 2; dim++) {
- gint scaling_factor = 5; //empspacing;
+ gint scaling_factor = empspacing;
if (scaling_factor <= 1)
scaling_factor = 5;
}
}
-void
-CanvasXYGrid::Render (SPCanvasBuf *buf)
-{
- const gdouble sxg = floor ((buf->rect.x0 - ow[NR::X]) / sw[NR::X]) * sw[NR::X] + ow[NR::X];
- const gint xlinestart = (gint) Inkscape::round((sxg - ow[NR::X]) / sw[NR::X]);
- const gdouble syg = floor ((buf->rect.y0 - ow[NR::Y]) / sw[NR::Y]) * sw[NR::Y] + ow[NR::Y];
- const gint ylinestart = (gint) Inkscape::round((syg - ow[NR::Y]) / sw[NR::Y]);
-
- gint ylinenum;
- gdouble y;
- for (y = syg, ylinenum = ylinestart; y < buf->rect.y1; y += sw[NR::Y], ylinenum++) {
- const gint y0 = (gint) Inkscape::round(y);
-
- if (!scaled[NR::Y] && (ylinenum % 5 /*empspacing*/) == 0) {
- grid_hline (buf, y0, buf->rect.x0, buf->rect.x1 - 1, empcolor);
- } else {
- grid_hline (buf, y0, buf->rect.x0, buf->rect.x1 - 1, color);
- }
- }
-
- gint xlinenum;
- gdouble x;
- for (x = sxg, xlinenum = xlinestart; x < buf->rect.x1; x += sw[NR::X], xlinenum++) {
- const gint ix = (gint) Inkscape::round(x);
- if (!scaled[NR::X] && (xlinenum % 5 /*empspacing*/) == 0) {
- grid_vline (buf, ix, buf->rect.y0, buf->rect.y1, empcolor);
- } else {
- grid_vline (buf, ix, buf->rect.y0, buf->rect.y1, color);
- }
- }
-}
-
-
-
-
-
-
-
-
-
-
-
-
-/**
- * \return x rounded to the nearest multiple of c1 plus c0.
- *
- * \note
- * If c1==0 (and c0 is finite), then returns +/-inf. This makes grid spacing of zero
- * mean "ignore the grid in this dimention". We're currently discussing "good" semantics
- * for guide/grid snapping.
- */
-
-/* FIXME: move this somewhere else, perhaps */
-static double round_to_nearest_multiple_plus(double x, double const c1, double const c0)
-{
- return floor((x - c0) / c1 + .5) * c1 + c0;
-}
-
-CanvasXYGridSnapper::CanvasXYGridSnapper(CanvasXYGrid *grid, SPNamedView const *nv, NR::Coord const d) : LineSnapper(nv, d)
-{
- this->grid = grid;
-}
-
-LineSnapper::LineList
-CanvasXYGridSnapper::_getSnapLines(NR::Point const &p) const
-{
- LineList s;
-
- if ( grid == NULL ) {
- return s;
- }
-
- for (unsigned int i = 0; i < 2; ++i) {
-
- /* This is to make sure we snap to only visible grid lines */
- double scaled_spacing = grid->sw[i]; // this is spacing of visible lines if screen pixels
-
- // convert screen pixels to px
- // FIXME: after we switch to snapping dist in screen pixels, this will be unnecessary
- if (SP_ACTIVE_DESKTOP) {
- scaled_spacing /= SP_ACTIVE_DESKTOP->current_zoom();
- }
-
- NR::Coord const rounded = round_to_nearest_multiple_plus(p[i],
- scaled_spacing,
- grid->origin[i]);
-
- s.push_back(std::make_pair(NR::Dim2(i), rounded));
- }
-
- return s;
-}
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-enum {
- ARG_0,
- ARG_ORIGINX,
- ARG_ORIGINY,
- ARG_SPACINGX,
- ARG_SPACINGY,
- ARG_COLOR,
- ARG_EMPCOLOR,
- ARG_EMPSPACING
-};
-
-
-static void cxygrid_class_init (CXYGridClass *klass);
-static void cxygrid_init (CXYGrid *grid);
-static void cxygrid_destroy (GtkObject *object);
-static void cxygrid_set_arg (GtkObject *object, GtkArg *arg, guint arg_id);
-
-static void cxygrid_update (SPCanvasItem *item, NR::Matrix const &affine, unsigned int flags);
-static void cxygrid_render (SPCanvasItem *item, SPCanvasBuf *buf);
-
-//static SPCanvasItemClass * parent_class;
-
-GtkType
-cxygrid_get_type (void)
-{
- static GtkType cxygrid_type = 0;
-
- if (!cxygrid_type) {
- GtkTypeInfo cxygrid_info = {
- "CXYGrid",
- sizeof (CXYGrid),
- sizeof (CXYGridClass),
- (GtkClassInitFunc) cxygrid_class_init,
- (GtkObjectInitFunc) cxygrid_init,
- NULL, NULL,
- (GtkClassInitFunc) NULL
- };
- cxygrid_type = gtk_type_unique (sp_canvas_item_get_type (), &cxygrid_info);
- }
- return cxygrid_type;
-}
-
-static void
-cxygrid_class_init (CXYGridClass *klass)
-{
- GtkObjectClass *object_class;
- SPCanvasItemClass *item_class;
-
- object_class = (GtkObjectClass *) klass;
- item_class = (SPCanvasItemClass *) klass;
-
- parent_class = (SPCanvasItemClass*)gtk_type_class (sp_canvas_item_get_type ());
-
- gtk_object_add_arg_type ("CXYGrid::originx", GTK_TYPE_DOUBLE, GTK_ARG_WRITABLE, ARG_ORIGINX);
- gtk_object_add_arg_type ("CXYGrid::originy", GTK_TYPE_DOUBLE, GTK_ARG_WRITABLE, ARG_ORIGINY);
- gtk_object_add_arg_type ("CXYGrid::spacingx", GTK_TYPE_DOUBLE, GTK_ARG_WRITABLE, ARG_SPACINGX);
- gtk_object_add_arg_type ("CXYGrid::spacingy", GTK_TYPE_DOUBLE, GTK_ARG_WRITABLE, ARG_SPACINGY);
- gtk_object_add_arg_type ("CXYGrid::color", GTK_TYPE_INT, GTK_ARG_WRITABLE, ARG_COLOR);
- gtk_object_add_arg_type ("CXYGrid::empcolor", GTK_TYPE_INT, GTK_ARG_WRITABLE, ARG_EMPCOLOR);
- gtk_object_add_arg_type ("CXYGrid::empspacing", GTK_TYPE_INT, GTK_ARG_WRITABLE, ARG_EMPSPACING);
-
- object_class->destroy = cxygrid_destroy;
- object_class->set_arg = cxygrid_set_arg;
-
- item_class->update = cxygrid_update;
- item_class->render = cxygrid_render;
-}
-
-static void
-cxygrid_init (CXYGrid *grid)
-{
- grid->origin[NR::X] = grid->origin[NR::Y] = 0.0;
- grid->spacing[NR::X] = grid->spacing[NR::Y] = 8.0;
- grid->color = 0x0000ff7f;
- grid->empcolor = 0x3F3FFF40;
- grid->empspacing = 5;
-}
-
-static void
-cxygrid_destroy (GtkObject *object)
-{
- g_return_if_fail (object != NULL);
- g_return_if_fail (INKSCAPE_IS_CXYGRID (object));
-
- if (GTK_OBJECT_CLASS (parent_class)->destroy)
- (* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
-}
-
-static void
-cxygrid_set_arg (GtkObject *object, GtkArg *arg, guint arg_id)
-{
- SPCanvasItem *item = SP_CANVAS_ITEM (object);
- CXYGrid *grid = INKSCAPE_CXYGRID (object);
-
- switch (arg_id) {
- case ARG_ORIGINX:
- grid->origin[NR::X] = GTK_VALUE_DOUBLE (* arg);
- sp_canvas_item_request_update (item);
- break;
- case ARG_ORIGINY:
- grid->origin[NR::Y] = GTK_VALUE_DOUBLE (* arg);
- sp_canvas_item_request_update (item);
- break;
- case ARG_SPACINGX:
- grid->spacing[NR::X] = GTK_VALUE_DOUBLE (* arg);
- if (grid->spacing[NR::X] < 0.01) grid->spacing[NR::X] = 0.01;
- sp_canvas_item_request_update (item);
- break;
- case ARG_SPACINGY:
- grid->spacing[NR::Y] = GTK_VALUE_DOUBLE (* arg);
- if (grid->spacing[NR::Y] < 0.01) grid->spacing[NR::Y] = 0.01;
- sp_canvas_item_request_update (item);
- break;
- case ARG_COLOR:
- grid->color = GTK_VALUE_INT (* arg);
- sp_canvas_item_request_update (item);
- break;
- case ARG_EMPCOLOR:
- grid->empcolor = GTK_VALUE_INT (* arg);
- sp_canvas_item_request_update (item);
- break;
- case ARG_EMPSPACING:
- grid->empspacing = GTK_VALUE_INT (* arg);
- // std::cout << "Emphasis Spacing: " << grid->empspacing << std::endl;
- sp_canvas_item_request_update (item);
- break;
- default:
- break;
- }
-}
static void
grid_hline (SPCanvasBuf *buf, gint y, gint xs, gint xe, guint32 rgba)
a = NR_RGBA32_A (rgba);
x0 = MAX (buf->rect.x0, xs);
x1 = MIN (buf->rect.x1, xe + 1);
- p = buf->buf + (y - buf->rect.y0) * buf->buf_rowstride + (x0 - buf->rect.x0) * 3;
+ p = buf->buf + (y - buf->rect.y0) * buf->buf_rowstride + (x0 - buf->rect.x0) * 4;
for (x = x0; x < x1; x++) {
p[0] = NR_COMPOSEN11_1111 (r, a, p[0]);
p[1] = NR_COMPOSEN11_1111 (g, a, p[1]);
p[2] = NR_COMPOSEN11_1111 (b, a, p[2]);
- p += 3;
+ p += 4;
}
}
}
a = NR_RGBA32_A (rgba);
y0 = MAX (buf->rect.y0, ys);
y1 = MIN (buf->rect.y1, ye + 1);
- p = buf->buf + (y0 - buf->rect.y0) * buf->buf_rowstride + (x - buf->rect.x0) * 3;
+ p = buf->buf + (y0 - buf->rect.y0) * buf->buf_rowstride + (x - buf->rect.x0) * 4;
for (y = y0; y < y1; y++) {
p[0] = NR_COMPOSEN11_1111 (r, a, p[0]);
p[1] = NR_COMPOSEN11_1111 (g, a, p[1]);
}
}
-/**
- \brief This function renders the grid on a particular canvas buffer
- \param item The grid to render on the buffer
- \param buf The buffer to render the grid on
-
- This function gets called a touch more than you might believe,
- about once per tile. This means that it could probably be optimized
- and help things out.
-
- Basically this function has to determine where in the canvas it is,
- and how that associates with the grid. It does this first by looking
- at the bounding box of the buffer, and then calculates where the grid
- starts in that buffer. It will then step through grid lines until
- it is outside of the buffer.
-
- For each grid line it is drawn using the function \c sp_grid_hline
- or \c sp_grid_vline. These are convience functions for the sake
- of making the function easier to read.
-
- Also, there are emphisized lines on the grid. While the \c syg and
- \c sxg variable track grid positioning, the \c xlinestart and \c
- ylinestart variables track the 'count' of what lines they are. If
- that count is a multiple of the line seperation between emphisis
- lines, then that line is drawn in the emphisis color.
-*/
static void
-cxygrid_render (SPCanvasItem * item, SPCanvasBuf * buf)
+grid_dot (SPCanvasBuf *buf, gint x, gint y, guint32 rgba)
{
- CXYGrid *grid = INKSCAPE_CXYGRID (item);
-
- sp_canvas_prepare_buffer (buf);
+ if ( (y >= buf->rect.y0) && (y < buf->rect.y1)
+ && (x >= buf->rect.x0) && (x < buf->rect.x1) ) {
+ guint r, g, b, a;
+ guchar *p;
+ r = NR_RGBA32_R (rgba);
+ g = NR_RGBA32_G (rgba);
+ b = NR_RGBA32_B (rgba);
+ a = NR_RGBA32_A (rgba);
+ p = buf->buf + (y - buf->rect.y0) * buf->buf_rowstride + (x - buf->rect.x0) * 4;
+ p[0] = NR_COMPOSEN11_1111 (r, a, p[0]);
+ p[1] = NR_COMPOSEN11_1111 (g, a, p[1]);
+ p[2] = NR_COMPOSEN11_1111 (b, a, p[2]);
+ }
+}
- const gdouble sxg = floor ((buf->rect.x0 - grid->ow[NR::X]) / grid->sw[NR::X]) * grid->sw[NR::X] + grid->ow[NR::X];
- const gint xlinestart = (gint) Inkscape::round((sxg - grid->ow[NR::X]) / grid->sw[NR::X]);
- const gdouble syg = floor ((buf->rect.y0 - grid->ow[NR::Y]) / grid->sw[NR::Y]) * grid->sw[NR::Y] + grid->ow[NR::Y];
- const gint ylinestart = (gint) Inkscape::round((syg - grid->ow[NR::Y]) / grid->sw[NR::Y]);
+void
+CanvasXYGrid::Render (SPCanvasBuf *buf)
+{
+ gdouble const sxg = floor ((buf->rect.x0 - ow[Geom::X]) / sw[Geom::X]) * sw[Geom::X] + ow[Geom::X];
+ gint const xlinestart = (gint) Inkscape::round((sxg - ow[Geom::X]) / sw[Geom::X]);
+ gdouble const syg = floor ((buf->rect.y0 - ow[Geom::Y]) / sw[Geom::Y]) * sw[Geom::Y] + ow[Geom::Y];
+ gint const ylinestart = (gint) Inkscape::round((syg - ow[Geom::Y]) / sw[Geom::Y]);
+
+ //set correct coloring, depending preference (when zoomed out, always major coloring or minor coloring)
+ Inkscape::Preferences *prefs = Inkscape::Preferences::get();
+ guint32 _empcolor;
+ bool no_emp_when_zoomed_out = prefs->getBool("/options/grids/no_emphasize_when_zoomedout", false);
+ if( (scaled[Geom::X] || scaled[Geom::Y]) && no_emp_when_zoomed_out ) {
+ _empcolor = color;
+ } else {
+ _empcolor = empcolor;
+ }
- gint ylinenum;
- gdouble y;
- for (y = syg, ylinenum = ylinestart; y < buf->rect.y1; y += grid->sw[NR::Y], ylinenum++) {
- const gint y0 = (gint) Inkscape::round(y);
+ if (!render_dotted) {
+ gint ylinenum;
+ gdouble y;
+ for (y = syg, ylinenum = ylinestart; y < buf->rect.y1; y += sw[Geom::Y], ylinenum++) {
+ gint const y0 = (gint) Inkscape::round(y);
+ if (!scaled[Geom::Y] && (ylinenum % empspacing) != 0) {
+ grid_hline (buf, y0, buf->rect.x0, buf->rect.x1 - 1, color);
+ } else {
+ grid_hline (buf, y0, buf->rect.x0, buf->rect.x1 - 1, _empcolor);
+ }
+ }
- if (!grid->scaled[NR::Y] && (ylinenum % grid->empspacing) == 0) {
- grid_hline (buf, y0, buf->rect.x0, buf->rect.x1 - 1, grid->empcolor);
- } else {
- grid_hline (buf, y0, buf->rect.x0, buf->rect.x1 - 1, grid->color);
+ gint xlinenum;
+ gdouble x;
+ for (x = sxg, xlinenum = xlinestart; x < buf->rect.x1; x += sw[Geom::X], xlinenum++) {
+ gint const ix = (gint) Inkscape::round(x);
+ if (!scaled[Geom::X] && (xlinenum % empspacing) != 0) {
+ grid_vline (buf, ix, buf->rect.y0, buf->rect.y1, color);
+ } else {
+ grid_vline (buf, ix, buf->rect.y0, buf->rect.y1, _empcolor);
+ }
}
- }
+ } else {
+ gint ylinenum;
+ gdouble y;
+ for (y = syg, ylinenum = ylinestart; y < buf->rect.y1; y += sw[Geom::Y], ylinenum++) {
+ gint const iy = (gint) Inkscape::round(y);
+
+ gint xlinenum;
+ gdouble x;
+ for (x = sxg, xlinenum = xlinestart; x < buf->rect.x1; x += sw[Geom::X], xlinenum++) {
+ gint const ix = (gint) Inkscape::round(x);
+ if ( (!scaled[Geom::X] && (xlinenum % empspacing) != 0)
+ || (!scaled[Geom::Y] && (ylinenum % empspacing) != 0)
+ || ((scaled[Geom::X] || scaled[Geom::Y]) && no_emp_when_zoomed_out) )
+ {
+ grid_dot (buf, ix, iy, color | (guint32)0x000000FF); // put alpha to max value
+ } else {
+ gint const pitch = 1;
+ grid_dot (buf, ix-pitch, iy, _empcolor);
+ grid_dot (buf, ix+pitch, iy, _empcolor);
+
+ grid_dot (buf, ix, iy, _empcolor | (guint32)0x000000FF); // put alpha to max value
+
+ grid_dot (buf, ix, iy-pitch, _empcolor);
+ grid_dot (buf, ix, iy+pitch, _empcolor);
+ }
+ }
- gint xlinenum;
- gdouble x;
- for (x = sxg, xlinenum = xlinestart; x < buf->rect.x1; x += grid->sw[NR::X], xlinenum++) {
- const gint ix = (gint) Inkscape::round(x);
- if (!grid->scaled[NR::X] && (xlinenum % grid->empspacing) == 0) {
- grid_vline (buf, ix, buf->rect.y0, buf->rect.y1, grid->empcolor);
- } else {
- grid_vline (buf, ix, buf->rect.y0, buf->rect.y1, grid->color);
}
}
}
-static void
-cxygrid_update (SPCanvasItem *item, NR::Matrix const &affine, unsigned int flags)
+CanvasXYGridSnapper::CanvasXYGridSnapper(CanvasXYGrid *grid, SnapManager *sm, Geom::Coord const d) : LineSnapper(sm, d)
{
- CXYGrid *grid = INKSCAPE_CXYGRID (item);
+ this->grid = grid;
+}
- if (parent_class->update)
- (* parent_class->update) (item, affine, flags);
+/**
+ * \return Snap tolerance (desktop coordinates); depends on current zoom so that it's always the same in screen pixels
+ */
+Geom::Coord CanvasXYGridSnapper::getSnapperTolerance() const
+{
+ SPDesktop const *dt = _snapmanager->getDesktop();
+ double const zoom = dt ? dt->current_zoom() : 1;
+ return _snapmanager->snapprefs.getGridTolerance() / zoom;
+}
- grid->ow = grid->origin * affine;
- grid->sw = grid->spacing * affine;
- grid->sw -= NR::Point(affine[4], affine[5]);
+bool CanvasXYGridSnapper::getSnapperAlwaysSnap() const
+{
+ return _snapmanager->snapprefs.getGridTolerance() == 10000; //TODO: Replace this threshold of 10000 by a constant; see also tolerance-slider.cpp
+}
- for(int dim = 0; dim < 2; dim++) {
- gint scaling_factor = grid->empspacing;
+LineSnapper::LineList
+CanvasXYGridSnapper::_getSnapLines(Geom::Point const &p) const
+{
+ LineList s;
- if (scaling_factor <= 1)
- scaling_factor = 5;
+ if ( grid == NULL ) {
+ return s;
+ }
- grid->scaled[dim] = FALSE;
- grid->sw[dim] = fabs (grid->sw[dim]);
- while (grid->sw[dim] < 8.0) {
- grid->scaled[dim] = TRUE;
- grid->sw[dim] *= scaling_factor;
- /* First pass, go up to the major line spacing, then
- keep increasing by two. */
- scaling_factor = 2;
+ for (unsigned int i = 0; i < 2; ++i) {
+
+ double spacing;
+
+ if (getSnapVisibleOnly()) {
+ // Only snapping to visible grid lines
+ spacing = grid->sw[i]; // this is the spacing of the visible grid lines measured in screen pixels
+ // convert screen pixels to px
+ // FIXME: after we switch to snapping dist in screen pixels, this will be unnecessary
+ SPDesktop const *dt = _snapmanager->getDesktop();
+ if (dt) {
+ spacing /= dt->current_zoom();
+ }
+ } else {
+ // Snapping to any grid line, whether it's visible or not
+ spacing = grid->spacing[i];
}
- }
- if (grid->empspacing == 0) {
- grid->scaled[NR::Y] = TRUE;
- grid->scaled[NR::X] = TRUE;
+ Geom::Coord rounded;
+ Geom::Point point_on_line;
+
+ rounded = Inkscape::Util::round_to_upper_multiple_plus(p[i], spacing, grid->origin[i]);
+ point_on_line = i ? Geom::Point(0, rounded) : Geom::Point(rounded, 0);
+ s.push_back(std::make_pair(component_vectors[i], point_on_line));
+
+ rounded = Inkscape::Util::round_to_lower_multiple_plus(p[i], spacing, grid->origin[i]);
+ point_on_line = i ? Geom::Point(0, rounded) : Geom::Point(rounded, 0);
+ s.push_back(std::make_pair(component_vectors[i], point_on_line));
}
- sp_canvas_request_redraw (item->canvas,
- -1000000, -1000000,
- 1000000, 1000000);
+ return s;
+}
- item->x1 = item->y1 = -1000000;
- item->x2 = item->y2 = 1000000;
+void CanvasXYGridSnapper::_addSnappedLine(SnappedConstraints &sc, Geom::Point const snapped_point, Geom::Coord const snapped_distance, SnapSourceType const &source, long source_num, Geom::Point const normal_to_line, Geom::Point const point_on_line) const
+{
+ SnappedLine dummy = SnappedLine(snapped_point, snapped_distance, source, source_num, Inkscape::SNAPTARGET_GRID, getSnapperTolerance(), getSnapperAlwaysSnap(), normal_to_line, point_on_line);
+ sc.grid_lines.push_back(dummy);
+}
+
+void CanvasXYGridSnapper::_addSnappedPoint(SnappedConstraints &sc, Geom::Point const snapped_point, Geom::Coord const snapped_distance, SnapSourceType const &source, long source_num, bool constrained_snap) const
+{
+ SnappedPoint dummy = SnappedPoint(snapped_point, source, source_num, Inkscape::SNAPTARGET_GRID, snapped_distance, getSnapperTolerance(), getSnapperAlwaysSnap(), constrained_snap, true);
+ sc.points.push_back(dummy);
+}
+
+/**
+ * \return true if this Snapper will snap at least one kind of point.
+ */
+bool CanvasXYGridSnapper::ThisSnapperMightSnap() const
+{
+ return _snap_enabled && _snapmanager->snapprefs.getSnapToGrids() && _snapmanager->snapprefs.getSnapModeBBoxOrNodes();
}
+} // namespace Inkscape
-}; /* namespace Inkscape */
/*
Local Variables:
@@ -1021,4 +1057,4 @@ cxygrid_update (SPCanvasItem *item, NR::Matrix const &affine, unsigned int flags
fill-column:99
End:
*/
-// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :
+// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :