121 lines
3.8 KiB
C++
121 lines
3.8 KiB
C++
//-----------------------------------------------------------------------------
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// The View menu, stuff to snap to certain special vews of the model, and to
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// display our current view of the model to the user.
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//
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// Copyright 2008-2013 Jonathan Westhues.
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//-----------------------------------------------------------------------------
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#include "solvespace.h"
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void TextWindow::ShowEditView(void) {
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Printf(true, "%Ft3D VIEW PARAMETERS%E");
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Printf(true, "%Bd %Ftoverall scale factor%E");
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Printf(false, "%Ba %# px/%s %Fl%Ll%f[edit]%E",
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SS.GW.scale * SS.MmPerUnit(),
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SS.UnitName(),
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&ScreenChangeViewScale);
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Printf(false, "");
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Printf(false, "%Bd %Ftorigin (maps to center of screen)%E");
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Printf(false, "%Ba (%s, %s, %s) %Fl%Ll%f[edit]%E",
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SS.MmToString(-SS.GW.offset.x),
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SS.MmToString(-SS.GW.offset.y),
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SS.MmToString(-SS.GW.offset.z),
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&ScreenChangeViewOrigin);
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Printf(false, "");
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Vector n = (SS.GW.projRight).Cross(SS.GW.projUp);
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Printf(false, "%Bd %Ftprojection onto screen%E");
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Printf(false, "%Ba %Ftright%E (%3, %3, %3) %Fl%Ll%f[edit]%E",
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CO(SS.GW.projRight),
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&ScreenChangeViewProjection);
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Printf(false, "%Bd %Ftup%E (%3, %3, %3)", CO(SS.GW.projUp));
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Printf(false, "%Ba %Ftout%E (%3, %3, %3)", CO(n));
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Printf(false, "");
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Printf(false, "The perspective may be changed in the");
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Printf(false, "configuration screen.");
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}
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void TextWindow::ScreenChangeViewScale(int link, DWORD v) {
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char buf[1024];
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sprintf(buf, "%.3f", SS.GW.scale * SS.MmPerUnit());
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SS.TW.edit.meaning = EDIT_VIEW_SCALE;
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SS.TW.ShowEditControl(12, 3, buf);
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}
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void TextWindow::ScreenChangeViewOrigin(int link, DWORD v) {
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char buf[1024];
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sprintf(buf, "%s, %s, %s",
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SS.MmToString(-SS.GW.offset.x),
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SS.MmToString(-SS.GW.offset.y),
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SS.MmToString(-SS.GW.offset.z));
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SS.TW.edit.meaning = EDIT_VIEW_ORIGIN;
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SS.TW.ShowEditControl(18, 3, buf);
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}
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void TextWindow::ScreenChangeViewProjection(int link, DWORD v) {
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char buf[1024];
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sprintf(buf, "%.3f, %.3f, %.3f", CO(SS.GW.projRight));
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SS.TW.edit.meaning = EDIT_VIEW_PROJ_RIGHT;
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SS.TW.ShowEditControl(24, 10, buf);
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}
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bool TextWindow::EditControlDoneForView(char *s) {
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switch(edit.meaning) {
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case EDIT_VIEW_SCALE: {
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Expr *e = Expr::From(s, true);
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if(e) {
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double v = e->Eval() / SS.MmPerUnit();
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if(v > LENGTH_EPS) {
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SS.GW.scale = v;
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} else {
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Error("Scale cannot be zero or negative.");
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}
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}
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break;
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}
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case EDIT_VIEW_ORIGIN: {
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Vector pt;
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if(sscanf(s, "%lf, %lf, %lf", &pt.x, &pt.y, &pt.z) == 3) {
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pt = pt.ScaledBy(SS.MmPerUnit());
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SS.GW.offset = pt.ScaledBy(-1);
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} else {
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Error("Bad format: specify x, y, z");
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}
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break;
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}
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case EDIT_VIEW_PROJ_RIGHT:
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case EDIT_VIEW_PROJ_UP: {
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Vector pt;
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if(sscanf(s, "%lf, %lf, %lf", &pt.x, &pt.y, &pt.z) != 3) {
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Error("Bad format: specify x, y, z");
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break;
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}
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if(edit.meaning == EDIT_VIEW_PROJ_RIGHT) {
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SS.GW.projRight = pt;
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SS.GW.NormalizeProjectionVectors();
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edit.meaning = EDIT_VIEW_PROJ_UP;
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char buf[1024];
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sprintf(buf, "%.3f, %.3f, %.3f", CO(SS.GW.projUp));
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HideEditControl();
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ShowEditControl(26, 10, buf);
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edit.showAgain = true;
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} else {
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SS.GW.projUp = pt;
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SS.GW.NormalizeProjectionVectors();
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}
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break;
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}
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default:
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return false;
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}
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return true;
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}
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