#define __SP_OBJECT_EDIT_C__ /* * Node editing extension to objects * * Authors: * Lauris Kaplinski <lauris@kaplinski.com> * Mitsuru Oka * * Licensed under GNU GPL */ #ifdef HAVE_CONFIG_H # include "config.h" #endif #include "sp-item.h" #include "sp-rect.h" #include "box3d.h" #include "sp-ellipse.h" #include "sp-star.h" #include "sp-spiral.h" #include "sp-offset.h" #include "sp-flowtext.h" #include "prefs-utils.h" #include "inkscape.h" #include "snap.h" #include "desktop-affine.h" #include <style.h> #include "desktop.h" #include "desktop-handles.h" #include "sp-namedview.h" #include "sp-pattern.h" #include "sp-path.h" #include <glibmm/i18n.h> #include "object-edit.h" #include <libnr/nr-scale-ops.h> #include "xml/repr.h" #include "isnan.h" #define sp_round(v,m) (((v) < 0.0) ? ((ceil((v) / (m) - 0.5)) * (m)) : ((floor((v) / (m) + 0.5)) * (m))) static SPKnotHolder *sp_rect_knot_holder(SPItem *item, SPDesktop *desktop); static SPKnotHolder *box3d_knot_holder(SPItem *item, SPDesktop *desktop); static SPKnotHolder *sp_arc_knot_holder(SPItem *item, SPDesktop *desktop); static SPKnotHolder *sp_star_knot_holder(SPItem *item, SPDesktop *desktop); static SPKnotHolder *sp_spiral_knot_holder(SPItem *item, SPDesktop *desktop); static SPKnotHolder *sp_offset_knot_holder(SPItem *item, SPDesktop *desktop); static SPKnotHolder *sp_misc_knot_holder(SPItem *item, SPDesktop *desktop); static SPKnotHolder *sp_flowtext_knot_holder(SPItem *item, SPDesktop *desktop); static void sp_pat_knot_holder(SPItem *item, SPKnotHolder *knot_holder); SPKnotHolder * sp_item_knot_holder(SPItem *item, SPDesktop *desktop) { if (SP_IS_RECT(item)) { return sp_rect_knot_holder(item, desktop); } else if (SP_IS_BOX3D(item)) { return box3d_knot_holder(item, desktop); } else if (SP_IS_ARC(item)) { return sp_arc_knot_holder(item, desktop); } else if (SP_IS_STAR(item)) { return sp_star_knot_holder(item, desktop); } else if (SP_IS_SPIRAL(item)) { return sp_spiral_knot_holder(item, desktop); } else if (SP_IS_OFFSET(item)) { return sp_offset_knot_holder(item, desktop); } else if (SP_IS_FLOWTEXT(item) && SP_FLOWTEXT(item)->has_internal_frame()) { return sp_flowtext_knot_holder(item, desktop); } else { return sp_misc_knot_holder(item, desktop); } return NULL; } /* Pattern manipulation */ static gdouble sp_pattern_extract_theta(SPPattern *pat, gdouble scale) { gdouble theta = asin(pat->patternTransform[1] / scale); if (pat->patternTransform[0] < 0) theta = M_PI - theta ; return theta; } static gdouble sp_pattern_extract_scale(SPPattern *pat) { gdouble s = pat->patternTransform[1]; gdouble c = pat->patternTransform[0]; gdouble xscale = sqrt(c * c + s * s); return xscale; } static NR::Point sp_pattern_extract_trans(SPPattern const *pat) { return NR::Point(pat->patternTransform[4], pat->patternTransform[5]); } static void sp_pattern_xy_set(SPItem *item, NR::Point const &p, NR::Point const &origin, guint state) { SPPattern *pat = SP_PATTERN(SP_STYLE_FILL_SERVER(SP_OBJECT(item)->style)); NR::Point p_snapped = p; if ( state & GDK_CONTROL_MASK ) { if (fabs((p - origin)[NR::X]) > fabs((p - origin)[NR::Y])) { p_snapped[NR::Y] = origin[NR::Y]; } else { p_snapped[NR::X] = origin[NR::X]; } } if (state) { NR::Point const q = p_snapped - sp_pattern_extract_trans(pat); sp_item_adjust_pattern(item, NR::Matrix(NR::translate(q))); } item->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG); } static NR::Point sp_pattern_xy_get(SPItem *item) { SPPattern const *pat = SP_PATTERN(SP_STYLE_FILL_SERVER(SP_OBJECT(item)->style)); return sp_pattern_extract_trans(pat); } static NR::Point sp_pattern_angle_get(SPItem *item) { SPPattern *pat = SP_PATTERN(SP_STYLE_FILL_SERVER(SP_OBJECT(item)->style)); gdouble x = (pattern_width(pat)*0.5); gdouble y = 0; NR::Point delta = NR::Point(x,y); gdouble scale = sp_pattern_extract_scale(pat); gdouble theta = sp_pattern_extract_theta(pat, scale); delta = delta * NR::Matrix(NR::rotate(theta))*NR::Matrix(NR::scale(scale,scale)); delta = delta + sp_pattern_extract_trans(pat); return delta; } static void sp_pattern_angle_set(SPItem *item, NR::Point const &p, NR::Point const &/*origin*/, guint state) { int const snaps = prefs_get_int_attribute("options.rotationsnapsperpi", "value", 12); SPPattern *pat = SP_PATTERN(SP_STYLE_FILL_SERVER(SP_OBJECT(item)->style)); // get the angle from pattern 0,0 to the cursor pos NR::Point delta = p - sp_pattern_extract_trans(pat); gdouble theta = atan2(delta); if ( state & GDK_CONTROL_MASK ) { theta = sp_round(theta, M_PI/snaps); } // get the scale from the current transform so we can keep it. gdouble scl = sp_pattern_extract_scale(pat); NR::Matrix rot = NR::Matrix(NR::rotate(theta)) * NR::Matrix(NR::scale(scl,scl)); NR::Point const t = sp_pattern_extract_trans(pat); rot[4] = t[NR::X]; rot[5] = t[NR::Y]; sp_item_adjust_pattern(item, rot, true); item->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG); } static void sp_pattern_scale_set(SPItem *item, NR::Point const &p, NR::Point const &/*origin*/, guint /*state*/) { SPPattern *pat = SP_PATTERN(SP_STYLE_FILL_SERVER(SP_OBJECT(item)->style)); // Get the scale from the position of the knotholder, NR::Point d = p - sp_pattern_extract_trans(pat); gdouble s = NR::L2(d); gdouble pat_x = pattern_width(pat) * 0.5; gdouble pat_y = pattern_height(pat) * 0.5; gdouble pat_h = hypot(pat_x, pat_y); gdouble scl = s / pat_h; // get angle from current transform, (need get current scale first to calculate angle) gdouble oldscale = sp_pattern_extract_scale(pat); gdouble theta = sp_pattern_extract_theta(pat,oldscale); NR::Matrix rot = NR::Matrix(NR::rotate(theta)) * NR::Matrix(NR::scale(scl,scl)); NR::Point const t = sp_pattern_extract_trans(pat); rot[4] = t[NR::X]; rot[5] = t[NR::Y]; sp_item_adjust_pattern(item, rot, true); item->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG); } static NR::Point sp_pattern_scale_get(SPItem *item) { SPPattern *pat = SP_PATTERN(SP_STYLE_FILL_SERVER(SP_OBJECT(item)->style)); gdouble x = pattern_width(pat)*0.5; gdouble y = pattern_height(pat)*0.5; NR::Point delta = NR::Point(x,y); NR::Matrix a = pat->patternTransform; a[4] = 0; a[5] = 0; delta = delta * a; delta = delta + sp_pattern_extract_trans(pat); return delta; } /* SPRect */ static NR::Point snap_knot_position(SPItem *item, NR::Point const &p) { SPDesktop const *desktop = inkscape_active_desktop(); NR::Matrix const i2d (sp_item_i2d_affine (item)); NR::Point s = p * i2d; SnapManager const &m = desktop->namedview->snap_manager; s = m.freeSnap(Inkscape::Snapper::SNAPPOINT_NODE, s, item).getPoint(); return s * i2d.inverse(); } static NR::Point sp_rect_rx_get(SPItem *item) { SPRect *rect = SP_RECT(item); return NR::Point(rect->x.computed + rect->width.computed - rect->rx.computed, rect->y.computed); } static void sp_rect_rx_set(SPItem *item, NR::Point const &p, NR::Point const &/*origin*/, guint state) { SPRect *rect = SP_RECT(item); //In general we cannot just snap this radius to an arbitrary point, as we have only a single //degree of freedom. For snapping to an arbitrary point we need two DOF. If we're going to snap //the radius then we should have a constrained snap. snap_knot_position() is unconstrained if (state & GDK_CONTROL_MASK) { gdouble temp = MIN(rect->height.computed, rect->width.computed) / 2.0; rect->rx.computed = rect->ry.computed = CLAMP(rect->x.computed + rect->width.computed - p[NR::X], 0.0, temp); rect->rx._set = rect->ry._set = true; } else { rect->rx.computed = CLAMP(rect->x.computed + rect->width.computed - p[NR::X], 0.0, rect->width.computed / 2.0); rect->rx._set = true; } ((SPObject*)rect)->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG); } static NR::Point sp_rect_ry_get(SPItem *item) { SPRect *rect = SP_RECT(item); return NR::Point(rect->x.computed + rect->width.computed, rect->y.computed + rect->ry.computed); } static void sp_rect_ry_set(SPItem *item, NR::Point const &p, NR::Point const &/*origin*/, guint state) { SPRect *rect = SP_RECT(item); //In general we cannot just snap this radius to an arbitrary point, as we have only a single //degree of freedom. For snapping to an arbitrary point we need two DOF. If we're going to snap //the radius then we should have a constrained snap. snap_knot_position() is unconstrained if (state & GDK_CONTROL_MASK) { gdouble temp = MIN(rect->height.computed, rect->width.computed) / 2.0; rect->rx.computed = rect->ry.computed = CLAMP(p[NR::Y] - rect->y.computed, 0.0, temp); rect->ry._set = rect->rx._set = true; } else { if (!rect->rx._set || rect->rx.computed == 0) { rect->ry.computed = CLAMP(p[NR::Y] - rect->y.computed, 0.0, MIN(rect->height.computed / 2.0, rect->width.computed / 2.0)); } else { rect->ry.computed = CLAMP(p[NR::Y] - rect->y.computed, 0.0, rect->height.computed / 2.0); } rect->ry._set = true; } ((SPObject *)rect)->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG); } /** * Remove rounding from a rectangle. */ static void rect_remove_rounding(SPRect *rect) { SP_OBJECT_REPR(rect)->setAttribute("rx", NULL); SP_OBJECT_REPR(rect)->setAttribute("ry", NULL); } /** * Called when the horizontal rounding radius knot is clicked. */ static void sp_rect_rx_knot_click(SPItem *item, guint state) { SPRect *rect = SP_RECT(item); if (state & GDK_SHIFT_MASK) { rect_remove_rounding(rect); } else if (state & GDK_CONTROL_MASK) { /* Ctrl-click sets the vertical rounding to be the same as the horizontal */ SP_OBJECT_REPR(rect)->setAttribute("ry", SP_OBJECT_REPR(rect)->attribute("rx")); } } /** * Called when the vertical rounding radius knot is clicked. */ static void sp_rect_ry_knot_click(SPItem *item, guint state) { SPRect *rect = SP_RECT(item); if (state & GDK_SHIFT_MASK) { rect_remove_rounding(rect); } else if (state & GDK_CONTROL_MASK) { /* Ctrl-click sets the vertical rounding to be the same as the horizontal */ SP_OBJECT_REPR(rect)->setAttribute("rx", SP_OBJECT_REPR(rect)->attribute("ry")); } } #define SGN(x) ((x)>0?1:((x)<0?-1:0)) static void sp_rect_clamp_radii(SPRect *rect) { // clamp rounding radii so that they do not exceed width/height if (2 * rect->rx.computed > rect->width.computed) { rect->rx.computed = 0.5 * rect->width.computed; rect->rx._set = true; } if (2 * rect->ry.computed > rect->height.computed) { rect->ry.computed = 0.5 * rect->height.computed; rect->ry._set = true; } } static NR::Point sp_rect_wh_get(SPItem *item) { SPRect *rect = SP_RECT(item); return NR::Point(rect->x.computed + rect->width.computed, rect->y.computed + rect->height.computed); } static void sp_rect_wh_set_internal(SPRect *rect, NR::Point const &p, NR::Point const &origin, guint state) { NR::Point const s = snap_knot_position(rect, p); if (state & GDK_CONTROL_MASK) { // original width/height when drag started gdouble const w_orig = (origin[NR::X] - rect->x.computed); gdouble const h_orig = (origin[NR::Y] - rect->y.computed); //original ratio gdouble const ratio = (w_orig / h_orig); // mouse displacement since drag started gdouble const minx = s[NR::X] - origin[NR::X]; gdouble const miny = s[NR::Y] - origin[NR::Y]; if (fabs(minx) > fabs(miny)) { // snap to horizontal or diagonal rect->width.computed = MAX(w_orig + minx, 0); if (minx != 0 && fabs(miny/minx) > 0.5 * 1/ratio && (SGN(minx) == SGN(miny))) { // closer to the diagonal and in same-sign quarters, change both using ratio rect->height.computed = MAX(h_orig + minx / ratio, 0); } else { // closer to the horizontal, change only width, height is h_orig rect->height.computed = MAX(h_orig, 0); } } else { // snap to vertical or diagonal rect->height.computed = MAX(h_orig + miny, 0); if (miny != 0 && fabs(minx/miny) > 0.5 * ratio && (SGN(minx) == SGN(miny))) { // closer to the diagonal and in same-sign quarters, change both using ratio rect->width.computed = MAX(w_orig + miny * ratio, 0); } else { // closer to the vertical, change only height, width is w_orig rect->width.computed = MAX(w_orig, 0); } } rect->width._set = rect->height._set = true; } else { // move freely rect->width.computed = MAX(s[NR::X] - rect->x.computed, 0); rect->height.computed = MAX(s[NR::Y] - rect->y.computed, 0); rect->width._set = rect->height._set = true; } sp_rect_clamp_radii(rect); ((SPObject *)rect)->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG); } static void sp_rect_wh_set(SPItem *item, NR::Point const &p, NR::Point const &origin, guint state) { SPRect *rect = SP_RECT(item); sp_rect_wh_set_internal(rect, p, origin, state); } static NR::Point sp_rect_xy_get(SPItem *item) { SPRect *rect = SP_RECT(item); return NR::Point(rect->x.computed, rect->y.computed); } static void sp_rect_xy_set(SPItem *item, NR::Point const &p, NR::Point const &origin, guint state) { SPRect *rect = SP_RECT(item); // opposite corner (unmoved) gdouble opposite_x = (rect->x.computed + rect->width.computed); gdouble opposite_y = (rect->y.computed + rect->height.computed); // original width/height when drag started gdouble w_orig = opposite_x - origin[NR::X]; gdouble h_orig = opposite_y - origin[NR::Y]; NR::Point const s = snap_knot_position(rect, p); // mouse displacement since drag started gdouble minx = s[NR::X] - origin[NR::X]; gdouble miny = s[NR::Y] - origin[NR::Y]; if (state & GDK_CONTROL_MASK) { //original ratio gdouble ratio = (w_orig / h_orig); if (fabs(minx) > fabs(miny)) { // snap to horizontal or diagonal rect->x.computed = MIN(s[NR::X], opposite_x); rect->width.computed = MAX(w_orig - minx, 0); if (minx != 0 && fabs(miny/minx) > 0.5 * 1/ratio && (SGN(minx) == SGN(miny))) { // closer to the diagonal and in same-sign quarters, change both using ratio rect->y.computed = MIN(origin[NR::Y] + minx / ratio, opposite_y); rect->height.computed = MAX(h_orig - minx / ratio, 0); } else { // closer to the horizontal, change only width, height is h_orig rect->y.computed = MIN(origin[NR::Y], opposite_y); rect->height.computed = MAX(h_orig, 0); } } else { // snap to vertical or diagonal rect->y.computed = MIN(s[NR::Y], opposite_y); rect->height.computed = MAX(h_orig - miny, 0); if (miny != 0 && fabs(minx/miny) > 0.5 *ratio && (SGN(minx) == SGN(miny))) { // closer to the diagonal and in same-sign quarters, change both using ratio rect->x.computed = MIN(origin[NR::X] + miny * ratio, opposite_x); rect->width.computed = MAX(w_orig - miny * ratio, 0); } else { // closer to the vertical, change only height, width is w_orig rect->x.computed = MIN(origin[NR::X], opposite_x); rect->width.computed = MAX(w_orig, 0); } } rect->width._set = rect->height._set = rect->x._set = rect->y._set = true; } else { // move freely rect->x.computed = MIN(s[NR::X], opposite_x); rect->width.computed = MAX(w_orig - minx, 0); rect->y.computed = MIN(s[NR::Y], opposite_y); rect->height.computed = MAX(h_orig - miny, 0); rect->width._set = rect->height._set = rect->x._set = rect->y._set = true; } sp_rect_clamp_radii(rect); ((SPObject *)rect)->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG); } static SPKnotHolder *sp_rect_knot_holder(SPItem *item, SPDesktop *desktop) { SPKnotHolder *knot_holder = sp_knot_holder_new(desktop, item, NULL); sp_knot_holder_add_full( knot_holder, sp_rect_rx_set, sp_rect_rx_get, sp_rect_rx_knot_click, SP_KNOT_SHAPE_CIRCLE, SP_KNOT_MODE_XOR, _("Adjust the <b>horizontal rounding</b> radius; with <b>Ctrl</b> to make the vertical " "radius the same")); sp_knot_holder_add_full( knot_holder, sp_rect_ry_set, sp_rect_ry_get, sp_rect_ry_knot_click, SP_KNOT_SHAPE_CIRCLE, SP_KNOT_MODE_XOR, _("Adjust the <b>vertical rounding</b> radius; with <b>Ctrl</b> to make the horizontal " "radius the same") ); sp_knot_holder_add_full( knot_holder, sp_rect_wh_set, sp_rect_wh_get, NULL, SP_KNOT_SHAPE_SQUARE, SP_KNOT_MODE_XOR, _("Adjust the <b>width and height</b> of the rectangle; with <b>Ctrl</b> to lock ratio " "or stretch in one dimension only") ); sp_knot_holder_add_full( knot_holder, sp_rect_xy_set, sp_rect_xy_get, NULL, SP_KNOT_SHAPE_SQUARE, SP_KNOT_MODE_XOR, _("Adjust the <b>width and height</b> of the rectangle; with <b>Ctrl</b> to lock ratio " "or stretch in one dimension only") ); sp_pat_knot_holder(item, knot_holder); return knot_holder; } /* Box3D (= the new 3D box structure) */ static NR::Point box3d_knot_get(SPItem *item, guint knot_id) { g_assert(item != NULL); SPBox3D *box = SP_BOX3D(item); NR::Matrix const i2d (sp_item_i2d_affine (item)); return box3d_get_corner_screen(box, knot_id) * i2d; } static void box3d_knot_set(SPItem *item, guint knot_id, NR::Point const &new_pos, NR::Point const &/*origin*/, guint state) { NR::Point const s = snap_knot_position(item, new_pos); g_assert(item != NULL); SPBox3D *box = SP_BOX3D(item); NR::Matrix const i2d (sp_item_i2d_affine (item)); Box3D::Axis movement; if ((knot_id < 4) != (state & GDK_SHIFT_MASK)) { movement = Box3D::XY; } else { movement = Box3D::Z; } box3d_set_corner (box, knot_id, s * i2d, movement, (state & GDK_CONTROL_MASK)); box3d_set_z_orders(box); box3d_position_set(box); } static NR::Point box3d_knot_center_get (SPItem *item) { NR::Matrix const i2d (sp_item_i2d_affine (item)); return box3d_get_center_screen (SP_BOX3D(item)) * i2d; } static void box3d_knot_center_set(SPItem *item, NR::Point const &new_pos, NR::Point const &origin, guint state) { NR::Point const s = snap_knot_position(item, new_pos); SPBox3D *box = SP_BOX3D(item); NR::Matrix const i2d (sp_item_i2d_affine (item)); box3d_set_center (SP_BOX3D(item), s * i2d, origin * i2d, !(state & GDK_SHIFT_MASK) ? Box3D::XY : Box3D::Z, state & GDK_CONTROL_MASK); box3d_set_z_orders(box); box3d_position_set(box); } static void box3d_knot0_set(SPItem *item, NR::Point const &new_pos, NR::Point const &origin, guint state) { box3d_knot_set(item, 0, new_pos, origin, state); } static void box3d_knot1_set(SPItem *item, NR::Point const &new_pos, NR::Point const &origin, guint state) { box3d_knot_set(item, 1, new_pos, origin, state); } static void box3d_knot2_set(SPItem *item, NR::Point const &new_pos, NR::Point const &origin, guint state) { box3d_knot_set(item, 2, new_pos, origin, state); } static void box3d_knot3_set(SPItem *item, NR::Point const &new_pos, NR::Point const &origin, guint state) { box3d_knot_set(item, 3, new_pos, origin, state); } static void box3d_knot4_set(SPItem *item, NR::Point const &new_pos, NR::Point const &origin, guint state) { box3d_knot_set(item, 4, new_pos, origin, state); } static void box3d_knot5_set(SPItem *item, NR::Point const &new_pos, NR::Point const &origin, guint state) { box3d_knot_set(item, 5, new_pos, origin, state); } static void box3d_knot6_set(SPItem *item, NR::Point const &new_pos, NR::Point const &origin, guint state) { box3d_knot_set(item, 6, new_pos, origin, state); } static void box3d_knot7_set(SPItem *item, NR::Point const &new_pos, NR::Point const &origin, guint state) { box3d_knot_set(item, 7, new_pos, origin, state); } static NR::Point box3d_knot0_get(SPItem *item) { return box3d_knot_get(item, 0); } static NR::Point box3d_knot1_get(SPItem *item) { return box3d_knot_get(item, 1); } static NR::Point box3d_knot2_get(SPItem *item) { return box3d_knot_get(item, 2); } static NR::Point box3d_knot3_get(SPItem *item) { return box3d_knot_get(item, 3); } static NR::Point box3d_knot4_get(SPItem *item) { return box3d_knot_get(item, 4); } static NR::Point box3d_knot5_get(SPItem *item) { return box3d_knot_get(item, 5); } static NR::Point box3d_knot6_get(SPItem *item) { return box3d_knot_get(item, 6); } static NR::Point box3d_knot7_get(SPItem *item) { return box3d_knot_get(item, 7); } SPKnotHolder * box3d_knot_holder(SPItem *item, SPDesktop *desktop) { g_assert(item != NULL); SPKnotHolder *knot_holder = sp_knot_holder_new(desktop, item, NULL); sp_knot_holder_add(knot_holder, box3d_knot0_set, box3d_knot0_get, NULL, _("Resize box in X/Y direction; with <b>Shift</b> along the Z axis; with <b>Ctrl</b> to constrain to the directions of edges or diagonals")); sp_knot_holder_add(knot_holder, box3d_knot1_set, box3d_knot1_get, NULL, _("Resize box in X/Y direction; with <b>Shift</b> along the Z axis; with <b>Ctrl</b> to constrain to the directions of edges or diagonals")); sp_knot_holder_add(knot_holder, box3d_knot2_set, box3d_knot2_get, NULL, _("Resize box in X/Y direction; with <b>Shift</b> along the Z axis; with <b>Ctrl</b> to constrain to the directions of edges or diagonals")); sp_knot_holder_add(knot_holder, box3d_knot3_set, box3d_knot3_get, NULL, _("Resize box in X/Y direction; with <b>Shift</b> along the Z axis; with <b>Ctrl</b> to constrain to the directions of edges or diagonals")); sp_knot_holder_add(knot_holder, box3d_knot4_set, box3d_knot4_get, NULL, _("Resize box along the Z axis; with <b>Shift</b> in X/Y direction; with <b>Ctrl</b> to constrain to the directions of edges or diagonals")); sp_knot_holder_add(knot_holder, box3d_knot5_set, box3d_knot5_get, NULL, _("Resize box along the Z axis; with <b>Shift</b> in X/Y direction; with <b>Ctrl</b> to constrain to the directions of edges or diagonals")); sp_knot_holder_add(knot_holder, box3d_knot6_set, box3d_knot6_get, NULL, _("Resize box along the Z axis; with <b>Shift</b> in X/Y direction; with <b>Ctrl</b> to constrain to the directions of edges or diagonals")); sp_knot_holder_add(knot_holder, box3d_knot7_set, box3d_knot7_get, NULL, _("Resize box along the Z axis; with <b>Shift</b> in X/Y direction; with <b>Ctrl</b> to constrain to the directions of edges or diagonals")); // center dragging sp_knot_holder_add_full(knot_holder, box3d_knot_center_set, box3d_knot_center_get, NULL, SP_KNOT_SHAPE_CROSS, SP_KNOT_MODE_XOR,_("Move the box in perspective")); sp_pat_knot_holder(item, knot_holder); return knot_holder; } /* SPArc */ /* * return values: * 1 : inside * 0 : on the curves * -1 : outside */ static gint sp_genericellipse_side(SPGenericEllipse *ellipse, NR::Point const &p) { gdouble dx = (p[NR::X] - ellipse->cx.computed) / ellipse->rx.computed; gdouble dy = (p[NR::Y] - ellipse->cy.computed) / ellipse->ry.computed; gdouble s = dx * dx + dy * dy; if (s < 1.0) return 1; if (s > 1.0) return -1; return 0; } static void sp_arc_start_set(SPItem *item, NR::Point const &p, NR::Point const &/*origin*/, guint state) { int snaps = prefs_get_int_attribute("options.rotationsnapsperpi", "value", 12); SPGenericEllipse *ge = SP_GENERICELLIPSE(item); SPArc *arc = SP_ARC(item); ge->closed = (sp_genericellipse_side(ge, p) == -1) ? TRUE : FALSE; NR::Point delta = p - NR::Point(ge->cx.computed, ge->cy.computed); NR::scale sc(ge->rx.computed, ge->ry.computed); ge->start = atan2(delta * sc.inverse()); if ( ( state & GDK_CONTROL_MASK ) && snaps ) { ge->start = sp_round(ge->start, M_PI/snaps); } sp_genericellipse_normalize(ge); ((SPObject *)arc)->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG); } static NR::Point sp_arc_start_get(SPItem *item) { SPGenericEllipse *ge = SP_GENERICELLIPSE(item); SPArc *arc = SP_ARC(item); return sp_arc_get_xy(arc, ge->start); } static void sp_arc_end_set(SPItem *item, NR::Point const &p, NR::Point const &/*origin*/, guint state) { int snaps = prefs_get_int_attribute("options.rotationsnapsperpi", "value", 12); SPGenericEllipse *ge = SP_GENERICELLIPSE(item); SPArc *arc = SP_ARC(item); ge->closed = (sp_genericellipse_side(ge, p) == -1) ? TRUE : FALSE; NR::Point delta = p - NR::Point(ge->cx.computed, ge->cy.computed); NR::scale sc(ge->rx.computed, ge->ry.computed); ge->end = atan2(delta * sc.inverse()); if ( ( state & GDK_CONTROL_MASK ) && snaps ) { ge->end = sp_round(ge->end, M_PI/snaps); } sp_genericellipse_normalize(ge); ((SPObject *)arc)->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG); } static NR::Point sp_arc_end_get(SPItem *item) { SPGenericEllipse *ge = SP_GENERICELLIPSE(item); SPArc *arc = SP_ARC(item); return sp_arc_get_xy(arc, ge->end); } static void sp_arc_startend_click(SPItem *item, guint state) { SPGenericEllipse *ge = SP_GENERICELLIPSE(item); if (state & GDK_SHIFT_MASK) { ge->end = ge->start = 0; ((SPObject *)ge)->updateRepr(); } } static void sp_arc_rx_set(SPItem *item, NR::Point const &p, NR::Point const &/*origin*/, guint state) { SPGenericEllipse *ge = SP_GENERICELLIPSE(item); SPArc *arc = SP_ARC(item); NR::Point const s = snap_knot_position(arc, p); ge->rx.computed = fabs( ge->cx.computed - s[NR::X] ); if ( state & GDK_CONTROL_MASK ) { ge->ry.computed = ge->rx.computed; } ((SPObject *)arc)->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG); } static NR::Point sp_arc_rx_get(SPItem *item) { SPGenericEllipse *ge = SP_GENERICELLIPSE(item); return (NR::Point(ge->cx.computed, ge->cy.computed) - NR::Point(ge->rx.computed, 0)); } static void sp_arc_ry_set(SPItem *item, NR::Point const &p, NR::Point const &/*origin*/, guint state) { SPGenericEllipse *ge = SP_GENERICELLIPSE(item); SPArc *arc = SP_ARC(item); NR::Point const s = snap_knot_position(arc, p); ge->ry.computed = fabs( ge->cy.computed - s[NR::Y] ); if ( state & GDK_CONTROL_MASK ) { ge->rx.computed = ge->ry.computed; } ((SPObject *)arc)->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG); } static NR::Point sp_arc_ry_get(SPItem *item) { SPGenericEllipse *ge = SP_GENERICELLIPSE(item); return (NR::Point(ge->cx.computed, ge->cy.computed) - NR::Point(0, ge->ry.computed)); } static void sp_arc_rx_click(SPItem *item, guint state) { SPGenericEllipse *ge = SP_GENERICELLIPSE(item); if (state & GDK_CONTROL_MASK) { ge->ry.computed = ge->rx.computed; ((SPObject *)ge)->updateRepr(); } } static void sp_arc_ry_click(SPItem *item, guint state) { SPGenericEllipse *ge = SP_GENERICELLIPSE(item); if (state & GDK_CONTROL_MASK) { ge->rx.computed = ge->ry.computed; ((SPObject *)ge)->updateRepr(); } } static SPKnotHolder * sp_arc_knot_holder(SPItem *item, SPDesktop *desktop) { SPKnotHolder *knot_holder = sp_knot_holder_new(desktop, item, NULL); sp_knot_holder_add_full(knot_holder, sp_arc_rx_set, sp_arc_rx_get, sp_arc_rx_click, SP_KNOT_SHAPE_SQUARE, SP_KNOT_MODE_XOR, _("Adjust ellipse <b>width</b>, with <b>Ctrl</b> to make circle")); sp_knot_holder_add_full(knot_holder, sp_arc_ry_set, sp_arc_ry_get, sp_arc_ry_click, SP_KNOT_SHAPE_SQUARE, SP_KNOT_MODE_XOR, _("Adjust ellipse <b>height</b>, with <b>Ctrl</b> to make circle")); sp_knot_holder_add_full(knot_holder, sp_arc_start_set, sp_arc_start_get, sp_arc_startend_click, SP_KNOT_SHAPE_CIRCLE, SP_KNOT_MODE_XOR, _("Position the <b>start point</b> of the arc or segment; with <b>Ctrl</b> to snap angle; drag <b>inside</b> the ellipse for arc, <b>outside</b> for segment")); sp_knot_holder_add_full(knot_holder, sp_arc_end_set, sp_arc_end_get, sp_arc_startend_click, SP_KNOT_SHAPE_CIRCLE, SP_KNOT_MODE_XOR, _("Position the <b>end point</b> of the arc or segment; with <b>Ctrl</b> to snap angle; drag <b>inside</b> the ellipse for arc, <b>outside</b> for segment")); sp_pat_knot_holder(item, knot_holder); return knot_holder; } /* SPStar */ static void sp_star_knot1_set(SPItem *item, NR::Point const &p, NR::Point const &/*origin*/, guint state) { SPStar *star = SP_STAR(item); NR::Point const s = snap_knot_position(star, p); NR::Point d = s - star->center; double arg1 = atan2(d); double darg1 = arg1 - star->arg[0]; if (state & GDK_MOD1_MASK) { star->randomized = darg1/(star->arg[0] - star->arg[1]); } else if (state & GDK_SHIFT_MASK) { star->rounded = darg1/(star->arg[0] - star->arg[1]); } else if (state & GDK_CONTROL_MASK) { star->r[0] = L2(d); } else { star->r[0] = L2(d); star->arg[0] = arg1; star->arg[1] += darg1; } ((SPObject *)star)->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG); } static void sp_star_knot2_set(SPItem *item, NR::Point const &p, NR::Point const &/*origin*/, guint state) { SPStar *star = SP_STAR(item); NR::Point const s = snap_knot_position(star, p); if (star->flatsided == false) { NR::Point d = s - star->center; double arg1 = atan2(d); double darg1 = arg1 - star->arg[1]; if (state & GDK_MOD1_MASK) { star->randomized = darg1/(star->arg[0] - star->arg[1]); } else if (state & GDK_SHIFT_MASK) { star->rounded = fabs(darg1/(star->arg[0] - star->arg[1])); } else if (state & GDK_CONTROL_MASK) { star->r[1] = L2(d); star->arg[1] = star->arg[0] + M_PI / star->sides; } else { star->r[1] = L2(d); star->arg[1] = atan2(d); } ((SPObject *)star)->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG); } } static NR::Point sp_star_knot1_get(SPItem *item) { g_assert(item != NULL); SPStar *star = SP_STAR(item); return sp_star_get_xy(star, SP_STAR_POINT_KNOT1, 0); } static NR::Point sp_star_knot2_get(SPItem *item) { g_assert(item != NULL); SPStar *star = SP_STAR(item); return sp_star_get_xy(star, SP_STAR_POINT_KNOT2, 0); } static void sp_star_knot_click(SPItem *item, guint state) { SPStar *star = SP_STAR(item); if (state & GDK_MOD1_MASK) { star->randomized = 0; ((SPObject *)star)->updateRepr(); } else if (state & GDK_SHIFT_MASK) { star->rounded = 0; ((SPObject *)star)->updateRepr(); } else if (state & GDK_CONTROL_MASK) { star->arg[1] = star->arg[0] + M_PI / star->sides; ((SPObject *)star)->updateRepr(); } } static SPKnotHolder * sp_star_knot_holder(SPItem *item, SPDesktop *desktop) { /* we don't need to get parent knot_holder */ SPKnotHolder *knot_holder = sp_knot_holder_new(desktop, item, NULL); g_assert(item != NULL); SPStar *star = SP_STAR(item); sp_knot_holder_add(knot_holder, sp_star_knot1_set, sp_star_knot1_get, sp_star_knot_click, _("Adjust the <b>tip radius</b> of the star or polygon; with <b>Shift</b> to round; with <b>Alt</b> to randomize")); if (star->flatsided == false) sp_knot_holder_add(knot_holder, sp_star_knot2_set, sp_star_knot2_get, sp_star_knot_click, _("Adjust the <b>base radius</b> of the star; with <b>Ctrl</b> to keep star rays radial (no skew); with <b>Shift</b> to round; with <b>Alt</b> to randomize")); sp_pat_knot_holder(item, knot_holder); return knot_holder; } /* SPSpiral */ /* * set attributes via inner (t=t0) knot point: * [default] increase/decrease inner point * [shift] increase/decrease inner and outer arg synchronizely * [control] constrain inner arg to round per PI/4 */ static void sp_spiral_inner_set(SPItem *item, NR::Point const &p, NR::Point const &/*origin*/, guint state) { int snaps = prefs_get_int_attribute("options.rotationsnapsperpi", "value", 12); SPSpiral *spiral = SP_SPIRAL(item); gdouble dx = p[NR::X] - spiral->cx; gdouble dy = p[NR::Y] - spiral->cy; if (state & GDK_MOD1_MASK) { // adjust divergence by vertical drag, relative to rad double new_exp = (spiral->rad + dy)/(spiral->rad); spiral->exp = new_exp > 0? new_exp : 0; } else { // roll/unroll from inside gdouble arg_t0; sp_spiral_get_polar(spiral, spiral->t0, NULL, &arg_t0); gdouble arg_tmp = atan2(dy, dx) - arg_t0; gdouble arg_t0_new = arg_tmp - floor((arg_tmp+M_PI)/(2.0*M_PI))*2.0*M_PI + arg_t0; spiral->t0 = (arg_t0_new - spiral->arg) / (2.0*M_PI*spiral->revo); /* round inner arg per PI/snaps, if CTRL is pressed */ if ( ( state & GDK_CONTROL_MASK ) && ( fabs(spiral->revo) > SP_EPSILON_2 ) && ( snaps != 0 ) ) { gdouble arg = 2.0*M_PI*spiral->revo*spiral->t0 + spiral->arg; spiral->t0 = (sp_round(arg, M_PI/snaps) - spiral->arg)/(2.0*M_PI*spiral->revo); } spiral->t0 = CLAMP(spiral->t0, 0.0, 0.999); } ((SPObject *)spiral)->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG); } /* * set attributes via outer (t=1) knot point: * [default] increase/decrease revolution factor * [control] constrain inner arg to round per PI/4 */ static void sp_spiral_outer_set(SPItem *item, NR::Point const &p, NR::Point const &/*origin*/, guint state) { int snaps = prefs_get_int_attribute("options.rotationsnapsperpi", "value", 12); SPSpiral *spiral = SP_SPIRAL(item); gdouble dx = p[NR::X] - spiral->cx; gdouble dy = p[NR::Y] - spiral->cy; if (state & GDK_SHIFT_MASK) { // rotate without roll/unroll spiral->arg = atan2(dy, dx) - 2.0*M_PI*spiral->revo; if (!(state & GDK_MOD1_MASK)) { // if alt not pressed, change also rad; otherwise it is locked spiral->rad = MAX(hypot(dx, dy), 0.001); } if ( ( state & GDK_CONTROL_MASK ) && snaps ) { spiral->arg = sp_round(spiral->arg, M_PI/snaps); } } else { // roll/unroll // arg of the spiral outer end double arg_1; sp_spiral_get_polar(spiral, 1, NULL, &arg_1); // its fractional part after the whole turns are subtracted double arg_r = arg_1 - sp_round(arg_1, 2.0*M_PI); // arg of the mouse point relative to spiral center double mouse_angle = atan2(dy, dx); if (mouse_angle < 0) mouse_angle += 2*M_PI; // snap if ctrl if ( ( state & GDK_CONTROL_MASK ) && snaps ) { mouse_angle = sp_round(mouse_angle, M_PI/snaps); } // by how much we want to rotate the outer point double diff = mouse_angle - arg_r; if (diff > M_PI) diff -= 2*M_PI; else if (diff < -M_PI) diff += 2*M_PI; // calculate the new rad; // the value of t corresponding to the angle arg_1 + diff: double t_temp = ((arg_1 + diff) - spiral->arg)/(2*M_PI*spiral->revo); // the rad at that t: double rad_new = 0; if (t_temp > spiral->t0) sp_spiral_get_polar(spiral, t_temp, &rad_new, NULL); // change the revo (converting diff from radians to the number of turns) spiral->revo += diff/(2*M_PI); if (spiral->revo < 1e-3) spiral->revo = 1e-3; // if alt not pressed and the values are sane, change the rad if (!(state & GDK_MOD1_MASK) && rad_new > 1e-3 && rad_new/spiral->rad < 2) { // adjust t0 too so that the inner point stays unmoved double r0; sp_spiral_get_polar(spiral, spiral->t0, &r0, NULL); spiral->rad = rad_new; spiral->t0 = pow(r0 / spiral->rad, 1.0/spiral->exp); } if (!isFinite(spiral->t0)) spiral->t0 = 0.0; spiral->t0 = CLAMP(spiral->t0, 0.0, 0.999); } ((SPObject *)spiral)->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG); } static NR::Point sp_spiral_inner_get(SPItem *item) { SPSpiral *spiral = SP_SPIRAL(item); return sp_spiral_get_xy(spiral, spiral->t0); } static NR::Point sp_spiral_outer_get(SPItem *item) { SPSpiral *spiral = SP_SPIRAL(item); return sp_spiral_get_xy(spiral, 1.0); } static void sp_spiral_inner_click(SPItem *item, guint state) { SPSpiral *spiral = SP_SPIRAL(item); if (state & GDK_MOD1_MASK) { spiral->exp = 1; ((SPObject *)spiral)->updateRepr(); } else if (state & GDK_SHIFT_MASK) { spiral->t0 = 0; ((SPObject *)spiral)->updateRepr(); } } static SPKnotHolder * sp_spiral_knot_holder(SPItem *item, SPDesktop *desktop) { SPKnotHolder *knot_holder = sp_knot_holder_new(desktop, item, NULL); sp_knot_holder_add(knot_holder, sp_spiral_inner_set, sp_spiral_inner_get, sp_spiral_inner_click, _("Roll/unroll the spiral from <b>inside</b>; with <b>Ctrl</b> to snap angle; with <b>Alt</b> to converge/diverge")); sp_knot_holder_add(knot_holder, sp_spiral_outer_set, sp_spiral_outer_get, NULL, _("Roll/unroll the spiral from <b>outside</b>; with <b>Ctrl</b> to snap angle; with <b>Shift</b> to scale/rotate")); sp_pat_knot_holder(item, knot_holder); return knot_holder; } /* SPOffset */ static void sp_offset_offset_set(SPItem *item, NR::Point const &p, NR::Point const &/*origin*/, guint /*state*/) { SPOffset *offset = SP_OFFSET(item); offset->rad = sp_offset_distance_to_original(offset, p); offset->knot = p; offset->knotSet = true; ((SPObject *)offset)->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG); } static NR::Point sp_offset_offset_get(SPItem *item) { SPOffset *offset = SP_OFFSET(item); NR::Point np; sp_offset_top_point(offset,&np); return np; } static SPKnotHolder * sp_offset_knot_holder(SPItem *item, SPDesktop *desktop) { SPKnotHolder *knot_holder = sp_knot_holder_new(desktop, item, NULL); sp_knot_holder_add(knot_holder, sp_offset_offset_set, sp_offset_offset_get, NULL, _("Adjust the <b>offset distance</b>")); sp_pat_knot_holder(item, knot_holder); return knot_holder; } static SPKnotHolder * sp_misc_knot_holder(SPItem *item, SPDesktop *desktop) // FIXME: eliminate, instead make a pattern-drag similar to gradient-drag { if ((SP_OBJECT(item)->style->fill.isPaintserver()) && SP_IS_PATTERN(SP_STYLE_FILL_SERVER(SP_OBJECT(item)->style))) { SPKnotHolder *knot_holder = sp_knot_holder_new(desktop, item, NULL); sp_pat_knot_holder(item, knot_holder); return knot_holder; } return NULL; } static void sp_pat_knot_holder(SPItem *item, SPKnotHolder *knot_holder) { if ((SP_OBJECT(item)->style->fill.isPaintserver()) && SP_IS_PATTERN(SP_STYLE_FILL_SERVER(SP_OBJECT(item)->style))) { sp_knot_holder_add_full(knot_holder, sp_pattern_xy_set, sp_pattern_xy_get, NULL, SP_KNOT_SHAPE_CROSS, SP_KNOT_MODE_XOR, // TRANSLATORS: This refers to the pattern that's inside the object _("<b>Move</b> the pattern fill inside the object")); sp_knot_holder_add_full(knot_holder, sp_pattern_scale_set, sp_pattern_scale_get, NULL, SP_KNOT_SHAPE_SQUARE, SP_KNOT_MODE_XOR, _("<b>Scale</b> the pattern fill uniformly")); sp_knot_holder_add_full(knot_holder, sp_pattern_angle_set, sp_pattern_angle_get, NULL, SP_KNOT_SHAPE_CIRCLE, SP_KNOT_MODE_XOR, _("<b>Rotate</b> the pattern fill; with <b>Ctrl</b> to snap angle")); } } static NR::Point sp_flowtext_corner_get(SPItem *item) { SPRect *rect = SP_RECT(item); return NR::Point(rect->x.computed + rect->width.computed, rect->y.computed + rect->height.computed); } static void sp_flowtext_corner_set(SPItem *item, NR::Point const &p, NR::Point const &origin, guint state) { SPRect *rect = SP_RECT(item); sp_rect_wh_set_internal(rect, p, origin, state); } static SPKnotHolder * sp_flowtext_knot_holder(SPItem *item, SPDesktop *desktop) { SPKnotHolder *knot_holder = sp_knot_holder_new(desktop, SP_FLOWTEXT(item)->get_frame(NULL), NULL); sp_knot_holder_add(knot_holder, sp_flowtext_corner_set, sp_flowtext_corner_get, NULL, _("Drag to resize the <b>flowed text frame</b>")); return knot_holder; } /* 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 :