diff options
Diffstat (limited to 'src/gradient-drag.cpp')
| -rw-r--r-- | src/gradient-drag.cpp | 178 |
1 files changed, 110 insertions, 68 deletions
diff --git a/src/gradient-drag.cpp b/src/gradient-drag.cpp index 465f57b86..763e5bdb4 100644 --- a/src/gradient-drag.cpp +++ b/src/gradient-drag.cpp @@ -47,10 +47,11 @@ // absolute distance between gradient points for them to become a single dragger when the drag is created: #define MERGE_DIST 0.1 -// knot shapes corresponding to GrPoint enum +// knot shapes corresponding to GrPointType enum SPKnotShapeType gr_knot_shapes [] = { - SP_KNOT_SHAPE_SQUARE, //POINT_LG_P1 - SP_KNOT_SHAPE_SQUARE, + SP_KNOT_SHAPE_SQUARE, //POINT_LG_BEGIN + SP_KNOT_SHAPE_CIRCLE, //POINT_LG_END + SP_KNOT_SHAPE_DIAMOND, //POINT_LG_MID SP_KNOT_SHAPE_DIAMOND, SP_KNOT_SHAPE_CIRCLE, SP_KNOT_SHAPE_CIRCLE, @@ -58,8 +59,9 @@ SPKnotShapeType gr_knot_shapes [] = { }; const gchar *gr_knot_descr [] = { - N_("Linear gradient <b>start</b>"), //POINT_LG_P1 + N_("Linear gradient <b>start</b>"), //POINT_LG_BEGIN N_("Linear gradient <b>end</b>"), + N_("Linear gradient <b>mid</b>"), N_("Radial gradient <b>center</b>"), N_("Radial gradient <b>radius</b>"), N_("Radial gradient <b>radius</b>"), @@ -121,7 +123,7 @@ gr_drag_style_query (SPStyle *style, int property, gpointer data) ret = QUERY_STYLE_MULTIPLE_AVERAGED; } - guint32 c = sp_item_gradient_stop_query_style (draggable->item, draggable->point_num, draggable->fill_or_stroke); + guint32 c = sp_item_gradient_stop_query_style (draggable->item, draggable->point_type, draggable->point_i, draggable->fill_or_stroke); cf[0] += SP_RGBA32_R_F (c); cf[1] += SP_RGBA32_G_F (c); cf[2] += SP_RGBA32_B_F (c); @@ -215,7 +217,7 @@ gr_drag_style_set (const SPCSSAttr *css, gpointer data) GrDraggable *draggable = (GrDraggable *) i->data; drag->local_change = true; - sp_item_gradient_stop_set_style (draggable->item, draggable->point_num, draggable->fill_or_stroke, stop); + sp_item_gradient_stop_set_style (draggable->item, draggable->point_type, draggable->point_i, draggable->fill_or_stroke, stop); } //sp_repr_css_print(stop); @@ -267,7 +269,7 @@ GrDrag::GrDrag(SPDesktop *desktop) { this->updateLevels (); if (desktop->gr_item) { - this->setSelected (getDraggerFor (desktop->gr_item, desktop->gr_point_num, desktop->gr_fill_or_stroke)); + this->setSelected (getDraggerFor (desktop->gr_item, desktop->gr_point_type, desktop->gr_point_i, desktop->gr_fill_or_stroke)); } } @@ -281,11 +283,13 @@ GrDrag::~GrDrag() if (this->selected) { GrDraggable *draggable = (GrDraggable *) this->selected->draggables->data; desktop->gr_item = draggable->item; - desktop->gr_point_num = draggable->point_num; + desktop->gr_point_type = draggable->point_type; + desktop->gr_point_i = draggable->point_i; desktop->gr_fill_or_stroke = draggable->fill_or_stroke; } else { desktop->gr_item = NULL; - desktop->gr_point_num = 0; + desktop->gr_point_type = 0; + desktop->gr_point_i = 0; desktop->gr_fill_or_stroke = true; } @@ -303,10 +307,11 @@ GrDrag::~GrDrag() this->lines = NULL; } -GrDraggable::GrDraggable (SPItem *item, guint point_num, bool fill_or_stroke) +GrDraggable::GrDraggable (SPItem *item, guint point_type, guint point_i, bool fill_or_stroke) { this->item = item; - this->point_num = point_num; + this->point_type = point_type; + this->point_i = point_i; this->fill_or_stroke = fill_or_stroke; g_object_ref (G_OBJECT (this->item)); @@ -367,7 +372,7 @@ gr_knot_moved_handler(SPKnot *knot, NR::Point const *ppointer, guint state, gpoi for (GSList const* i = dragger->draggables; i != NULL; i = i->next) { // for all draggables of dragger GrDraggable *draggable = (GrDraggable *) i->data; // copy draggable to d_new: - GrDraggable *da_new = new GrDraggable (draggable->item, draggable->point_num, draggable->fill_or_stroke); + GrDraggable *da_new = new GrDraggable (draggable->item, draggable->point_type, draggable->point_i, draggable->fill_or_stroke); d_new->addDraggable (da_new); } @@ -417,13 +422,14 @@ gr_knot_moved_handler(SPKnot *knot, NR::Point const *ppointer, guint state, gpoi NR::Point *dr_snap = NULL; - if (draggable->point_num == POINT_LG_P1 || draggable->point_num == POINT_LG_P2) { + if (draggable->point_type == POINT_LG_BEGIN || draggable->point_type == POINT_LG_END) { for (GList *di = dragger->parent->draggers; di != NULL; di = di->next) { GrDragger *d_new = (GrDragger *) di->data; if (d_new == dragger) continue; if (d_new->isA (draggable->item, - draggable->point_num == POINT_LG_P1? POINT_LG_P2 : POINT_LG_P1, + draggable->point_type == POINT_LG_BEGIN? POINT_LG_END : POINT_LG_BEGIN, + draggable->point_i, draggable->fill_or_stroke)) { // found the other end of the linear gradient; if (state & GDK_SHIFT_MASK) { @@ -436,19 +442,20 @@ gr_knot_moved_handler(SPKnot *knot, NR::Point const *ppointer, guint state, gpoi } } } - } else if (draggable->point_num == POINT_RG_R1 || draggable->point_num == POINT_RG_R2 || draggable->point_num == POINT_RG_FOCUS) { + } else if (draggable->point_type == POINT_RG_R1 || draggable->point_type == POINT_RG_R2 || draggable->point_type == POINT_RG_FOCUS) { for (GList *di = dragger->parent->draggers; di != NULL; di = di->next) { GrDragger *d_new = (GrDragger *) di->data; if (d_new == dragger) continue; if (d_new->isA (draggable->item, POINT_RG_CENTER, + draggable->point_i, draggable->fill_or_stroke)) { // found the center of the radial gradient; dr_snap = &(d_new->point); } } - } else if (draggable->point_num == POINT_RG_CENTER) { + } else if (draggable->point_type == POINT_RG_CENTER) { // radial center snaps to hor/vert relative to its original position dr_snap = &(dragger->point_original); } @@ -545,7 +552,7 @@ gr_knot_doubleclicked_handler (SPKnot *knot, guint state, gpointer data) return; GrDraggable *draggable = (GrDraggable *) dragger->draggables->data; - sp_item_gradient_edit_stop (draggable->item, draggable->point_num, draggable->fill_or_stroke); + sp_item_gradient_edit_stop (draggable->item, draggable->point_type, draggable->point_i, draggable->fill_or_stroke); } /** @@ -563,20 +570,20 @@ GrDragger::fireDraggables (bool write_repr, bool scale_radial, bool merging_focu // change gradient, optionally writing to repr; prevent focus from moving if it's snapped // to the center, unless it's the first update upon merge when we must snap it to the point if (merging_focus || - !(draggable->point_num == POINT_RG_FOCUS && this->isA(draggable->item, POINT_RG_CENTER, draggable->fill_or_stroke))) - sp_item_gradient_set_coords (draggable->item, draggable->point_num, this->point, draggable->fill_or_stroke, write_repr, scale_radial); + !(draggable->point_type == POINT_RG_FOCUS && this->isA(draggable->item, POINT_RG_CENTER, draggable->point_i, draggable->fill_or_stroke))) + sp_item_gradient_set_coords (draggable->item, draggable->point_type, draggable->point_i, this->point, draggable->fill_or_stroke, write_repr, scale_radial); } } /** -Checks if the dragger has a draggable with this point_num +Checks if the dragger has a draggable with this point_type */ bool -GrDragger::isA (guint point_num) +GrDragger::isA (guint point_type) { for (GSList const* i = this->draggables; i != NULL; i = i->next) { GrDraggable *draggable = (GrDraggable *) i->data; - if (draggable->point_num == point_num) { + if (draggable->point_type == point_type) { return true; } } @@ -584,14 +591,14 @@ GrDragger::isA (guint point_num) } /** -Checks if the dragger has a draggable with this item, point_num, fill_or_stroke +Checks if the dragger has a draggable with this item, point_type, fill_or_stroke */ bool -GrDragger::isA (SPItem *item, guint point_num, bool fill_or_stroke) +GrDragger::isA (SPItem *item, guint point_type, guint point_i, bool fill_or_stroke) { for (GSList const* i = this->draggables; i != NULL; i = i->next) { GrDraggable *draggable = (GrDraggable *) i->data; - if (draggable->point_num == point_num && draggable->item == item && draggable->fill_or_stroke == fill_or_stroke) { + if ( (draggable->point_type == point_type) && (draggable->point_i == point_i) && (draggable->item == item) && (draggable->fill_or_stroke == fill_or_stroke) ) { return true; } } @@ -603,8 +610,8 @@ GrDraggable::mayMerge (GrDraggable *da2) { if ((this->item == da2->item) && (this->fill_or_stroke == da2->fill_or_stroke)) { // we must not merge the points of the same gradient! - if (!((this->point_num == POINT_RG_FOCUS && da2->point_num == POINT_RG_CENTER) || - (this->point_num == POINT_RG_CENTER && da2->point_num == POINT_RG_FOCUS))) { + if (!((this->point_type == POINT_RG_FOCUS && da2->point_type == POINT_RG_CENTER) || + (this->point_type == POINT_RG_CENTER && da2->point_type == POINT_RG_FOCUS))) { // except that we can snap center and focus together return false; } @@ -655,7 +662,7 @@ GrDragger::updateTip () GrDraggable *draggable = (GrDraggable *) this->draggables->data; char *item_desc = sp_item_description(draggable->item); this->knot->tip = g_strdup_printf (_("%s for: %s%s; drag with <b>Ctrl</b> to snap angle, with <b>Ctrl+Alt</b> to preserve angle, with <b>Ctrl+Shift</b> to scale around center"), - _(gr_knot_descr[draggable->point_num]), + _(gr_knot_descr[draggable->point_type]), item_desc, draggable->fill_or_stroke == false ? _(" (stroke)") : ""); g_free(item_desc); @@ -679,7 +686,7 @@ GrDragger::updateKnotShape () if (!draggables) return; GrDraggable *last = (GrDraggable *) g_slist_last(draggables)->data; - g_object_set (G_OBJECT (this->knot->item), "shape", gr_knot_shapes[last->point_num], NULL); + g_object_set (G_OBJECT (this->knot->item), "shape", gr_knot_shapes[last->point_type], NULL); } /** @@ -698,19 +705,19 @@ GrDragger::addDraggable (GrDraggable *draggable) Moves this dragger to the point of the given draggable, acting upon all other draggables */ void -GrDragger::moveThisToDraggable (SPItem *item, guint point_num, bool fill_or_stroke, bool write_repr) +GrDragger::moveThisToDraggable (SPItem *item, guint point_type, guint point_i, bool fill_or_stroke, bool write_repr) { - this->point = sp_item_gradient_get_coords (item, point_num, fill_or_stroke); + this->point = sp_item_gradient_get_coords (item, point_type, point_i, fill_or_stroke); this->point_original = this->point; sp_knot_moveto (this->knot, &(this->point)); for (GSList const* i = this->draggables; i != NULL; i = i->next) { GrDraggable *da = (GrDraggable *) i->data; - if (da->item == item && da->point_num == point_num && da->fill_or_stroke == fill_or_stroke) { + if ( (da->item == item) && (da->point_type == point_type) && (da->point_i == point_i) && (da->fill_or_stroke == fill_or_stroke) ) { continue; } - sp_item_gradient_set_coords (da->item, da->point_num, this->point, da->fill_or_stroke, write_repr, false); + sp_item_gradient_set_coords (da->item, da->point_type, da->point_i, this->point, da->fill_or_stroke, write_repr, false); } // FIXME: here we should also call this->updateDependencies(write_repr); to propagate updating, but how to prevent loops? } @@ -724,26 +731,52 @@ GrDragger::updateDependencies (bool write_repr) { for (GSList const* i = this->draggables; i != NULL; i = i->next) { GrDraggable *draggable = (GrDraggable *) i->data; - switch (draggable->point_num) { - case POINT_LG_P1: - // the other point is dependent only when dragging with ctrl+shift - this->moveOtherToDraggable (draggable->item, POINT_LG_P2, draggable->fill_or_stroke, write_repr); + switch (draggable->point_type) { + case POINT_LG_BEGIN: + { + // the end point is dependent only when dragging with ctrl+shift + this->moveOtherToDraggable (draggable->item, POINT_LG_END, 0, draggable->fill_or_stroke, write_repr); + + // update all midpoints. + SPObject *server = SP_OBJECT_STYLE_FILL_SERVER (draggable->item); + guint num = SP_GRADIENT(server)->vector.stops.size(); + if (num > 2) { + for ( guint i = 1; i < num - 1; i++ ) { + this->moveOtherToDraggable (draggable->item, POINT_LG_MID, i, draggable->fill_or_stroke, write_repr); + } + } + } break; - case POINT_LG_P2: - this->moveOtherToDraggable (draggable->item, POINT_LG_P1, draggable->fill_or_stroke, write_repr); + case POINT_LG_END: + { + // the begin point is dependent only when dragging with ctrl+shift + this->moveOtherToDraggable (draggable->item, POINT_LG_BEGIN, 0, draggable->fill_or_stroke, write_repr); + + // update all midpoints. + SPObject *server = SP_OBJECT_STYLE_FILL_SERVER (draggable->item); + guint num = SP_GRADIENT(server)->vector.stops.size(); + if (num > 2) { + for ( guint i = 1; i < num - 1; i++ ) { + this->moveOtherToDraggable (draggable->item, POINT_LG_MID, i, draggable->fill_or_stroke, write_repr); + } + } + } + break; + case POINT_LG_MID: + // no other nodes depend on mid points. break; case POINT_RG_R2: - this->moveOtherToDraggable (draggable->item, POINT_RG_R1, draggable->fill_or_stroke, write_repr); - this->moveOtherToDraggable (draggable->item, POINT_RG_FOCUS, draggable->fill_or_stroke, write_repr); + this->moveOtherToDraggable (draggable->item, POINT_RG_R1, 0, draggable->fill_or_stroke, write_repr); + this->moveOtherToDraggable (draggable->item, POINT_RG_FOCUS, 0, draggable->fill_or_stroke, write_repr); break; case POINT_RG_R1: - this->moveOtherToDraggable (draggable->item, POINT_RG_R2, draggable->fill_or_stroke, write_repr); - this->moveOtherToDraggable (draggable->item, POINT_RG_FOCUS, draggable->fill_or_stroke, write_repr); + this->moveOtherToDraggable (draggable->item, POINT_RG_R2, 0, draggable->fill_or_stroke, write_repr); + this->moveOtherToDraggable (draggable->item, POINT_RG_FOCUS, 0, draggable->fill_or_stroke, write_repr); break; case POINT_RG_CENTER: - this->moveOtherToDraggable (draggable->item, POINT_RG_R1, draggable->fill_or_stroke, write_repr); - this->moveOtherToDraggable (draggable->item, POINT_RG_R2, draggable->fill_or_stroke, write_repr); - this->moveOtherToDraggable (draggable->item, POINT_RG_FOCUS, draggable->fill_or_stroke, write_repr); + this->moveOtherToDraggable (draggable->item, POINT_RG_R1, 0, draggable->fill_or_stroke, write_repr); + this->moveOtherToDraggable (draggable->item, POINT_RG_R2, 0, draggable->fill_or_stroke, write_repr); + this->moveOtherToDraggable (draggable->item, POINT_RG_FOCUS, 0, draggable->fill_or_stroke, write_repr); break; case POINT_RG_FOCUS: // nothing can depend on that @@ -809,13 +842,13 @@ GrDragger::~GrDragger () Select the dragger which has the given draggable. */ GrDragger * -GrDrag::getDraggerFor (SPItem *item, guint point_num, bool fill_or_stroke) +GrDrag::getDraggerFor (SPItem *item, guint point_type, guint point_i, bool fill_or_stroke) { for (GList const* i = this->draggers; i != NULL; i = i->next) { GrDragger *dragger = (GrDragger *) i->data; for (GSList const* j = dragger->draggables; j != NULL; j = j->next) { GrDraggable *da2 = (GrDraggable *) j->data; - if (da2->item == item && da2->point_num == point_num && da2->fill_or_stroke == fill_or_stroke) { + if ( (da2->item == item) && (da2->point_type == point_type) && (da2->point_i == point_i) && (da2->fill_or_stroke == fill_or_stroke)) { return (dragger); } } @@ -825,11 +858,11 @@ GrDrag::getDraggerFor (SPItem *item, guint point_num, bool fill_or_stroke) void -GrDragger::moveOtherToDraggable (SPItem *item, guint point_num, bool fill_or_stroke, bool write_repr) +GrDragger::moveOtherToDraggable (SPItem *item, guint point_type, guint point_i, bool fill_or_stroke, bool write_repr) { - GrDragger *d = this->parent->getDraggerFor (item, point_num, fill_or_stroke); + GrDragger *d = this->parent->getDraggerFor (item, point_type, point_i, fill_or_stroke); if (d && d != this) { - d->moveThisToDraggable (item, point_num, fill_or_stroke, write_repr); + d->moveThisToDraggable (item, point_type, point_i, fill_or_stroke, write_repr); } } @@ -875,7 +908,7 @@ new dragger and add it to draggers list void GrDrag::addDragger (GrDraggable *draggable) { - NR::Point p = sp_item_gradient_get_coords (draggable->item, draggable->point_num, draggable->fill_or_stroke); + NR::Point p = sp_item_gradient_get_coords (draggable->item, draggable->point_type, draggable->point_i, draggable->fill_or_stroke); for (GList *i = this->draggers; i != NULL; i = i->next) { GrDragger *dragger = (GrDragger *) i->data; @@ -897,10 +930,10 @@ Add draggers for the radial gradient rg on item void GrDrag::addDraggersRadial (SPRadialGradient *rg, SPItem *item, bool fill_or_stroke) { - addDragger (new GrDraggable (item, POINT_RG_CENTER, fill_or_stroke)); - addDragger (new GrDraggable (item, POINT_RG_FOCUS, fill_or_stroke)); - addDragger (new GrDraggable (item, POINT_RG_R1, fill_or_stroke)); - addDragger (new GrDraggable (item, POINT_RG_R2, fill_or_stroke)); + addDragger (new GrDraggable (item, POINT_RG_CENTER, 0, fill_or_stroke)); + addDragger (new GrDraggable (item, POINT_RG_FOCUS, 0, fill_or_stroke)); + addDragger (new GrDraggable (item, POINT_RG_R1, 0, fill_or_stroke)); + addDragger (new GrDraggable (item, POINT_RG_R2, 0, fill_or_stroke)); } /** @@ -909,17 +942,26 @@ Add draggers for the linear gradient lg on item void GrDrag::addDraggersLinear (SPLinearGradient *lg, SPItem *item, bool fill_or_stroke) { - addDragger (new GrDraggable (item, POINT_LG_P1, fill_or_stroke)); - addDragger (new GrDraggable (item, POINT_LG_P2, fill_or_stroke)); + addDragger (new GrDraggable (item, POINT_LG_BEGIN, 0, fill_or_stroke)); + + // add midstops if any: + guint num = lg->vector.stops.size(); + if (num > 2) { + for ( guint i = 1; i < num - 1; i++ ) { + addDragger (new GrDraggable (item, POINT_LG_MID, i, fill_or_stroke)); + } + } + + addDragger (new GrDraggable (item, POINT_LG_END, 0, fill_or_stroke)); } /** Artificially grab the knot of the dragger with this draggable; used by the gradient context */ void -GrDrag::grabKnot (SPItem *item, guint point_num, bool fill_or_stroke, gint x, gint y, guint32 etime) +GrDrag::grabKnot (SPItem *item, guint point_type, guint point_i, bool fill_or_stroke, gint x, gint y, guint32 etime) { - GrDragger *dragger = getDraggerFor (item, point_num, fill_or_stroke); + GrDragger *dragger = getDraggerFor (item, point_type, point_i, fill_or_stroke); if (dragger) { sp_knot_start_dragging (dragger->knot, dragger->point, x, y, etime); } @@ -994,22 +1036,22 @@ GrDrag::updateLines () if (style && (style->fill.type == SP_PAINT_TYPE_PAINTSERVER)) { SPObject *server = SP_OBJECT_STYLE_FILL_SERVER (item); if (SP_IS_LINEARGRADIENT (server)) { - this->addLine (sp_item_gradient_get_coords (item, POINT_LG_P1, true), sp_item_gradient_get_coords (item, POINT_LG_P2, true), GR_LINE_COLOR_FILL); + this->addLine (sp_item_gradient_get_coords (item, POINT_LG_BEGIN, 0, true), sp_item_gradient_get_coords (item, POINT_LG_END, 0, true), GR_LINE_COLOR_FILL); } else if (SP_IS_RADIALGRADIENT (server)) { - NR::Point center = sp_item_gradient_get_coords (item, POINT_RG_CENTER, true); - this->addLine (center, sp_item_gradient_get_coords (item, POINT_RG_R1, true), GR_LINE_COLOR_FILL); - this->addLine (center, sp_item_gradient_get_coords (item, POINT_RG_R2, true), GR_LINE_COLOR_FILL); + NR::Point center = sp_item_gradient_get_coords (item, POINT_RG_CENTER, 0, true); + this->addLine (center, sp_item_gradient_get_coords (item, POINT_RG_R1, 0, true), GR_LINE_COLOR_FILL); + this->addLine (center, sp_item_gradient_get_coords (item, POINT_RG_R2, 0, true), GR_LINE_COLOR_FILL); } } if (style && (style->stroke.type == SP_PAINT_TYPE_PAINTSERVER)) { SPObject *server = SP_OBJECT_STYLE_STROKE_SERVER (item); if (SP_IS_LINEARGRADIENT (server)) { - this->addLine (sp_item_gradient_get_coords (item, POINT_LG_P1, false), sp_item_gradient_get_coords (item, POINT_LG_P2, false), GR_LINE_COLOR_STROKE); + this->addLine (sp_item_gradient_get_coords (item, POINT_LG_BEGIN, 0, false), sp_item_gradient_get_coords (item, POINT_LG_END, 0, false), GR_LINE_COLOR_STROKE); } else if (SP_IS_RADIALGRADIENT (server)) { - NR::Point center = sp_item_gradient_get_coords (item, POINT_RG_CENTER, false); - this->addLine (center, sp_item_gradient_get_coords (item, POINT_RG_R1, false), GR_LINE_COLOR_STROKE); - this->addLine (center, sp_item_gradient_get_coords (item, POINT_RG_R2, false), GR_LINE_COLOR_STROKE); + NR::Point center = sp_item_gradient_get_coords (item, POINT_RG_CENTER, 0, false); + this->addLine (center, sp_item_gradient_get_coords (item, POINT_RG_R1, 0, false), GR_LINE_COLOR_STROKE); + this->addLine (center, sp_item_gradient_get_coords (item, POINT_RG_R2, 0, false), GR_LINE_COLOR_STROKE); } } } |