576 lines
19 KiB
C++
576 lines
19 KiB
C++
#include <stdarg.h>
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#include "solvespace.h"
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#define mView (&GraphicsWindow::MenuView)
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#define mEdit (&GraphicsWindow::MenuEdit)
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#define mReq (&GraphicsWindow::MenuRequest)
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#define mCon (&Constraint::MenuConstrain)
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#define S 0x100
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const GraphicsWindow::MenuEntry GraphicsWindow::menu[] = {
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{ 0, "&File", 0, NULL },
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{ 1, "&New\tCtrl+N", 0, NULL },
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{ 1, "&Open...\tCtrl+O", 0, NULL },
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{ 1, "&Save\tCtrl+S", 0, NULL },
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{ 1, "Save &As...", 0, NULL },
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{ 1, NULL, 0, NULL },
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{ 1, "E&xit", 0, NULL },
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{ 0, "&Edit", 0, NULL },
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{ 1, "&Undo\tCtrl+Z", 0, NULL },
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{ 1, "&Redo\tCtrl+Y", 0, NULL },
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{ 1, NULL, 0, NULL },
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{ 1, "&Delete\tDel", MNU_DELETE, 127, mEdit },
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{ 1, NULL, 0, NULL },
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{ 1, "&Unselect All\tEsc", MNU_UNSELECT_ALL, 27, mEdit },
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{ 0, "&View", 0, NULL },
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{ 1, "Zoom &In\t+", MNU_ZOOM_IN, '+', mView },
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{ 1, "Zoom &Out\t-", MNU_ZOOM_OUT, '-', mView },
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{ 1, "Zoom To &Fit\tF", MNU_ZOOM_TO_FIT, 'F', mView },
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{ 1, NULL, 0, NULL },
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{ 1, "&Onto Plane / Coordinate System\tO", MNU_ORIENT_ONTO, 'O', mView },
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{ 1, "&Lock Orientation\tL", MNU_LOCK_VIEW, 'L', mView },
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{ 1, NULL, 0, NULL },
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{ 1, "Dimensions in &Inches", 0, NULL },
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{ 1, "Dimensions in &Millimeters", 0, NULL },
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{ 0, "&Request", 0, NULL },
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{ 1, "Datum &Point\tP", MNU_DATUM_POINT, 'P', mReq },
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{ 1, "Datum A&xis\tX", 0, 'X', mReq },
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{ 1, "Datum Pla&ne\tN", 0, 'N', mReq },
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{ 1, "2d Coordinate S&ystem\tY", 0, 'Y', mReq },
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{ 1, NULL, 0, NULL },
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{ 1, "Line &Segment\tS", MNU_LINE_SEGMENT, 'S', mReq },
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{ 1, "&Circle\tC", 0, 'C', mReq },
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{ 1, "&Arc of a Circle\tA", 0, 'A', mReq },
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{ 1, "&Cubic Segment\t3", 0, '3', mReq },
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{ 1, NULL, 0, NULL },
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{ 1, "Boolean &Union\tU", 0, 'U', mReq },
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{ 1, "Boolean &Difference\tD", 0, 'D', mReq },
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{ 1, "Step and Repeat &Translate\tT", 0, 'T', mReq },
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{ 1, "Step and Repeat &Rotate\tR", 0, 'R', mReq },
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{ 1, NULL, 0, NULL },
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{ 1, "Sym&bolic Variable\tB", 0, 'B', mReq },
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{ 1, "&Import From File...\tI", 0, 'I', mReq },
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{ 1, NULL, 0, NULL },
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{ 1, "To&ggle Construction\tG", 0, 'G', NULL },
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{ 0, "&Constrain", 0, NULL },
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{ 1, "&Distance / Diameter\tShift+D", MNU_DISTANCE_DIA, 'D'|S, mCon },
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{ 1, "A&ngle\tShift+N", 0, 'N'|S, NULL },
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{ 1, "Other S&upplementary Angle\tShift+U", 0, 'U'|S, NULL },
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{ 1, NULL, 0, NULL },
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{ 1, "&Horizontal\tShift+H", 0, 'H'|S, NULL },
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{ 1, "&Vertical\tShift+V", 0, 'V'|S, NULL },
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{ 1, NULL, 0, NULL },
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{ 1, "Coincident / &On Curve\tShift+O", 0, 'O'|S, NULL },
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{ 1, "E&qual Length / Radius\tShift+Q", 0, 'Q'|S, NULL },
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{ 1, "At &Midpoint\tShift+M", 0, 'M'|S, NULL },
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{ 1, "S&ymmetric\tShift+Y", 0, 'Y'|S, NULL },
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{ 1, NULL, 0, NULL },
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{ 1, "Sym&bolic Equation\tShift+B", 0, 'B'|S, NULL },
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{ 0, "&Help", 0, NULL },
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{ 1, "&About\t", 0, NULL },
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{ -1 },
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};
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void GraphicsWindow::Init(void) {
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memset(this, 0, sizeof(*this));
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offset.x = offset.y = offset.z = 0;
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scale = 1;
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projRight.x = 1; projRight.y = projRight.z = 0;
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projUp.y = 1; projUp.z = projUp.x = 0;
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EnsureValidActiveGroup();
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show2dCsyss = true;
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showAxes = true;
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showPoints = true;
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showAllGroups = true;
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showConstraints = true;
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}
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void GraphicsWindow::NormalizeProjectionVectors(void) {
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Vector norm = projRight.Cross(projUp);
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projUp = norm.Cross(projRight);
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projUp = projUp.ScaledBy(1/projUp.Magnitude());
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projRight = projRight.ScaledBy(1/projRight.Magnitude());
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}
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Point2d GraphicsWindow::ProjectPoint(Vector p) {
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p = p.Plus(offset);
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Point2d r;
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r.x = p.Dot(projRight) * scale;
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r.y = p.Dot(projUp) * scale;
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return r;
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}
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void GraphicsWindow::MenuView(int id) {
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switch(id) {
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case MNU_ZOOM_IN:
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SS.GW.scale *= 1.2;
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break;
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case MNU_ZOOM_OUT:
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SS.GW.scale /= 1.2;
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break;
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case MNU_ZOOM_TO_FIT:
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break;
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case MNU_LOCK_VIEW:
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SS.GW.viewLocked = !SS.GW.viewLocked;
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CheckMenuById(MNU_LOCK_VIEW, SS.GW.viewLocked);
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break;
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case MNU_ORIENT_ONTO:
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SS.GW.GroupSelection();
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if(SS.GW.gs.n == 1 && SS.GW.gs.csyss == 1) {
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Entity *e = SS.entity.FindById(SS.GW.gs.entity[0]);
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e->Get2dCsysBasisVectors( &(SS.GW.projRight), &(SS.GW.projUp));
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SS.GW.offset = SS.point.FindById(e->point(16))->GetCoords();
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SS.GW.ClearSelection();
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InvalidateGraphics();
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} else {
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Error("Select plane or coordinate system before orienting.");
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}
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break;
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default: oops();
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}
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InvalidateGraphics();
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}
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void GraphicsWindow::EnsureValidActiveGroup(void) {
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Group *g = SS.group.FindByIdNoOops(activeGroup);
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if(g && g->h.v != Group::HGROUP_REFERENCES.v) {
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return;
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}
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int i;
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for(i = 0; i < SS.group.elems; i++) {
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if(SS.group.elem[i].t.h.v != Group::HGROUP_REFERENCES.v) {
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break;
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}
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}
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if(i >= SS.group.elems) oops();
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activeGroup = SS.group.elem[i].t.h;
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}
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void GraphicsWindow::MenuEdit(int id) {
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switch(id) {
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case MNU_UNSELECT_ALL:
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SS.GW.ClearSelection();
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SS.GW.pendingOperation = 0;
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SS.GW.pendingDescription = NULL;
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SS.TW.Show();
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break;
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case MNU_DELETE: {
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int i;
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SS.request.ClearTags();
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for(i = 0; i < MAX_SELECTED; i++) {
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Selection *s = &(SS.GW.selection[i]);
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hRequest r;
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r.v = 0;
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if(s->point.v) {
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Point *pt = SS.GetPoint(s->point);
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Entity *e = SS.GetEntity(pt->entity());
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if(e->type == Entity::DATUM_POINT) {
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r = e->request();
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}
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} else if(s->entity.v) {
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Entity *e = SS.GetEntity(s->entity);
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r = e->request();
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}
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if(r.v) SS.request.Tag(r, 1);
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}
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SS.request.RemoveTagged();
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SS.GenerateAll();
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SS.GW.ClearSelection();
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SS.GW.hover.Clear();
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break;
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}
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default: oops();
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}
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}
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void GraphicsWindow::MenuRequest(int id) {
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char *s;
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switch(id) {
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case MNU_DATUM_POINT: s = "click to place datum point"; goto c;
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case MNU_LINE_SEGMENT: s = "click first point of line segment"; goto c;
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c:
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SS.GW.pendingOperation = id;
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SS.GW.pendingDescription = s;
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SS.TW.Show();
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break;
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default: oops();
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}
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}
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void GraphicsWindow::UpdateDraggedHPoint(hPoint hp, double mx, double my) {
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Point *p = SS.point.FindById(hp);
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Vector pos = p->GetCoords();
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UpdateDraggedPoint(&pos, mx, my);
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p->ForceTo(pos);
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}
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void GraphicsWindow::UpdateDraggedPoint(Vector *pos, double mx, double my) {
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*pos = pos->Plus(projRight.ScaledBy((mx - orig.mouse.x)/scale));
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*pos = pos->Plus(projUp.ScaledBy((my - orig.mouse.y)/scale));
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orig.mouse.x = mx;
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orig.mouse.y = my;
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InvalidateGraphics();
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}
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void GraphicsWindow::MouseMoved(double x, double y, bool leftDown,
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bool middleDown, bool rightDown, bool shiftDown, bool ctrlDown)
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{
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Point2d mp = { x, y };
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if(middleDown) {
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hover.Clear();
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double dx = (x - orig.mouse.x) / scale;
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double dy = (y - orig.mouse.y) / scale;
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// When the view is locked, permit only translation (pan).
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if(shiftDown || viewLocked) {
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offset.x = orig.offset.x + dx*projRight.x + dy*projUp.x;
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offset.y = orig.offset.y + dx*projRight.y + dy*projUp.y;
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offset.z = orig.offset.z + dx*projRight.z + dy*projUp.z;
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} else if(ctrlDown && !viewLocked) {
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double theta = atan2(orig.mouse.y, orig.mouse.x);
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theta -= atan2(y, x);
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Vector normal = orig.projRight.Cross(orig.projUp);
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projRight = orig.projRight.RotatedAbout(normal, theta);
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projUp = orig.projUp.RotatedAbout(normal, theta);
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NormalizeProjectionVectors();
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} else if(!viewLocked) {
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double s = 0.3*(PI/180); // degrees per pixel
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projRight = orig.projRight.RotatedAbout(orig.projUp, -s*dx);
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projUp = orig.projUp.RotatedAbout(orig.projRight, s*dy);
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NormalizeProjectionVectors();
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}
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orig.projRight = projRight;
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orig.projUp = projUp;
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orig.offset = offset;
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orig.mouse.x = x;
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orig.mouse.y = y;
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InvalidateGraphics();
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} else if(leftDown) {
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// We are left-dragging. This is often used to drag points, or
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// constraint labels.
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if(hover.point.v && !hover.point.isFromReferences()) {
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ClearSelection();
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UpdateDraggedHPoint(hover.point, x, y);
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} else if(hover.constraint.v &&
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SS.GetConstraint(hover.constraint)->HasLabel())
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{
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ClearSelection();
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Constraint *c = SS.constraint.FindById(hover.constraint);
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UpdateDraggedPoint(&(c->disp.offset), x, y);
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}
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} else {
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if(pendingOperation == PENDING_OPERATION_DRAGGING_POINT) {
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UpdateDraggedHPoint(pendingPoint, x, y);
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} else {
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// Do our usual hit testing, for the selection.
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Selection s;
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HitTestMakeSelection(mp, &s);
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if(!s.Equals(&hover)) {
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hover = s;
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InvalidateGraphics();
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}
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}
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}
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}
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bool GraphicsWindow::Selection::Equals(Selection *b) {
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if(point.v != b->point.v) return false;
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if(entity.v != b->entity.v) return false;
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if(constraint.v != b->constraint.v) return false;
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return true;
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}
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bool GraphicsWindow::Selection::IsEmpty(void) {
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if(point.v) return false;
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if(entity.v) return false;
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if(constraint.v) return false;
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return true;
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}
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void GraphicsWindow::Selection::Clear(void) {
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point.v = entity.v = constraint.v = 0;
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}
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void GraphicsWindow::Selection::Draw(void) {
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if(point.v) SS.point. FindById(point )->Draw();
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if(entity.v) SS.entity. FindById(entity )->Draw();
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if(constraint.v) SS.constraint.FindById(constraint)->Draw();
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}
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void GraphicsWindow::HitTestMakeSelection(Point2d mp, Selection *dest) {
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int i;
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double d, dmin = 1e12;
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memset(dest, 0, sizeof(*dest));
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// Do the points
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for(i = 0; i < SS.entity.elems; i++) {
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d = SS.entity.elem[i].t.GetDistance(mp);
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if(d < 10 && d < dmin) {
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memset(dest, 0, sizeof(*dest));
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dest->entity = SS.entity.elem[i].t.h;
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}
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}
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// Entities
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for(i = 0; i < SS.point.elems; i++) {
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d = SS.point.elem[i].t.GetDistance(mp);
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if(d < 10 && d < dmin) {
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memset(dest, 0, sizeof(*dest));
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dest->point = SS.point.elem[i].t.h;
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}
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}
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// Constraints
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for(i = 0; i < SS.constraint.elems; i++) {
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d = SS.constraint.elem[i].t.GetDistance(mp);
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if(d < 10 && d < dmin) {
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memset(dest, 0, sizeof(*dest));
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dest->constraint = SS.constraint.elem[i].t.h;
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}
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}
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}
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void GraphicsWindow::ClearSelection(void) {
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for(int i = 0; i < MAX_SELECTED; i++) {
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selection[i].Clear();
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}
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InvalidateGraphics();
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}
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void GraphicsWindow::GroupSelection(void) {
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gs.points = gs.entities = 0;
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gs.csyss = gs.lineSegments = 0;
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gs.n = 0;
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int i;
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for(i = 0; i < MAX_SELECTED; i++) {
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Selection *s = &(selection[i]);
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if(s->point.v) {
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gs.point[(gs.points)++] = s->point;
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(gs.n)++;
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}
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if(s->entity.v) {
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gs.entity[(gs.entities)++] = s->entity;
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(gs.n)++;
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Entity *e = SS.entity.FindById(s->entity);
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switch(e->type) {
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case Entity::CSYS_2D: (gs.csyss)++; break;
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case Entity::LINE_SEGMENT: (gs.lineSegments)++; break;
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}
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}
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}
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}
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void GraphicsWindow::MouseMiddleDown(double x, double y) {
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orig.offset = offset;
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orig.projUp = projUp;
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orig.projRight = projRight;
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orig.mouse.x = x;
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orig.mouse.y = y;
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}
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hRequest GraphicsWindow::AddRequest(int type) {
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Request r;
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memset(&r, 0, sizeof(r));
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r.group = activeGroup;
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r.type = type;
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SS.request.AddAndAssignId(&r);
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SS.GenerateAll();
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return r.h;
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}
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void GraphicsWindow::MouseLeftDown(double mx, double my) {
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// Make sure the hover is up to date.
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MouseMoved(mx, my, false, false, false, false, false);
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orig.mouse.x = mx;
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orig.mouse.y = my;
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// The current mouse location
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Vector v = offset.ScaledBy(-1);
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v = v.Plus(projRight.ScaledBy(mx/scale));
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v = v.Plus(projUp.ScaledBy(my/scale));
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hRequest hr;
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switch(pendingOperation) {
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case MNU_DATUM_POINT:
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hr = AddRequest(Request::DATUM_POINT);
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SS.point.FindById(hr.entity(0).point(16))->ForceTo(v);
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pendingOperation = 0;
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break;
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case MNU_LINE_SEGMENT:
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hr = AddRequest(Request::LINE_SEGMENT);
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SS.point.FindById(hr.entity(0).point(16))->ForceTo(v);
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pendingOperation = PENDING_OPERATION_DRAGGING_POINT;
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pendingPoint = hr.entity(0).point(16+3);
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pendingDescription = "click to place next point of line";
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SS.point.FindById(pendingPoint)->ForceTo(v);
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break;
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case PENDING_OPERATION_DRAGGING_POINT:
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pendingOperation = 0;
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break;
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case 0:
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default: {
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pendingOperation = 0;
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if(hover.IsEmpty()) break;
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// If an item is hovered, then by clicking on it, we toggle its
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// selection state.
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int i;
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for(i = 0; i < MAX_SELECTED; i++) {
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if(selection[i].Equals(&hover)) {
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selection[i].Clear();
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break;
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}
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}
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if(i != MAX_SELECTED) break;
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for(i = 0; i < MAX_SELECTED; i++) {
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if(selection[i].IsEmpty()) {
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selection[i] = hover;
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break;
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}
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}
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break;
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}
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}
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SS.TW.Show();
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InvalidateGraphics();
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}
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void GraphicsWindow::MouseScroll(double x, double y, int delta) {
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double offsetRight = offset.Dot(projRight);
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double offsetUp = offset.Dot(projUp);
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double righti = x/scale - offsetRight;
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double upi = y/scale - offsetUp;
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if(delta > 0) {
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scale *= 1.2;
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} else {
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scale /= 1.2;
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}
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double rightf = x/scale - offsetRight;
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double upf = y/scale - offsetUp;
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offset = offset.Plus(projRight.ScaledBy(rightf - righti));
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offset = offset.Plus(projUp.ScaledBy(upf - upi));
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InvalidateGraphics();
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}
|
|
|
|
void GraphicsWindow::ToggleBool(int link, DWORD v) {
|
|
bool *vb = (bool *)v;
|
|
*vb = !*vb;
|
|
|
|
SS.GenerateAll();
|
|
InvalidateGraphics();
|
|
SS.TW.Show();
|
|
}
|
|
|
|
void GraphicsWindow::ToggleAnyDatumShown(int link, DWORD v) {
|
|
bool t = !(SS.GW.show2dCsyss && SS.GW.showAxes && SS.GW.showPoints);
|
|
SS.GW.show2dCsyss = t;
|
|
SS.GW.showAxes = t;
|
|
SS.GW.showPoints = t;
|
|
|
|
SS.GenerateAll();
|
|
InvalidateGraphics();
|
|
SS.TW.Show();
|
|
}
|
|
|
|
void GraphicsWindow::Paint(int w, int h) {
|
|
width = w; height = h;
|
|
|
|
glViewport(0, 0, w, h);
|
|
|
|
glMatrixMode(GL_PROJECTION);
|
|
glLoadIdentity();
|
|
|
|
glMatrixMode(GL_MODELVIEW);
|
|
glLoadIdentity();
|
|
|
|
glScaled(scale*2.0/w, scale*2.0/h, 0);
|
|
|
|
double tx = projRight.Dot(offset);
|
|
double ty = projUp.Dot(offset);
|
|
double mat[16];
|
|
MakeMatrix(mat, projRight.x, projRight.y, projRight.z, tx,
|
|
projUp.x, projUp.y, projUp.z, ty,
|
|
0, 0, 0, 0,
|
|
0, 0, 0, 1);
|
|
glMultMatrixd(mat);
|
|
|
|
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
|
|
glEnable(GL_BLEND);
|
|
glEnable(GL_LINE_SMOOTH);
|
|
glEnable(GL_DEPTH_TEST);
|
|
glHint(GL_LINE_SMOOTH_HINT, GL_NICEST);
|
|
|
|
glClearIndex((GLfloat)0);
|
|
glClearDepth(1.0);
|
|
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
|
|
|
|
|
int i;
|
|
|
|
// First, draw the entire scene.
|
|
glColor3f(1, 1, 1);
|
|
for(i = 0; i < SS.entity.elems; i++) {
|
|
SS.entity.elem[i].t.Draw();
|
|
}
|
|
glColor3f(0, 0.8f, 0);
|
|
for(i = 0; i < SS.point.elems; i++) {
|
|
SS.point.elem[i].t.Draw();
|
|
}
|
|
glColor3f(1.0f, 0, 1.0f);
|
|
for(i = 0; i < SS.constraint.elems; i++) {
|
|
SS.constraint.elem[i].t.Draw();
|
|
}
|
|
|
|
// Then redraw whatever the mouse is hovering over, highlighted. Have
|
|
// to disable the depth test, so that we can overdraw.
|
|
glDisable(GL_DEPTH_TEST);
|
|
glColor3f(1, 1, 0);
|
|
hover.Draw();
|
|
|
|
// And finally draw the selection, same mechanism.
|
|
glColor3f(1, 0, 0);
|
|
for(i = 0; i < MAX_SELECTED; i++) {
|
|
selection[i].Draw();
|
|
}
|
|
}
|
|
|