// Modified by:
// Created: 04/01/98
// RCS-ID: $Id$
-// Copyright: (c) Julian Smart and Markus Holzem
-// Licence: wxWindows license
+// Copyright: (c) Julian Smart
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
-#ifdef __GNUG__
-#pragma implementation "layout.h"
+// =============================================================================
+// declarations
+// =============================================================================
+
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------
+
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
+ #pragma implementation "layout.h"
#endif
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#ifdef __BORLANDC__
-#pragma hdrstop
+ #pragma hdrstop
#endif
-#include "wx/defs.h"
-
#ifndef WX_PRECOMP
-#include "wx/window.h"
-#include "wx/utils.h"
-#include "wx/dialog.h"
-#include "wx/msgdlg.h"
-#include <wx/intl.h>
+ #include "wx/defs.h"
#endif
-#include "wx/layout.h"
+#if wxUSE_CONSTRAINTS
-#if !USE_SHARED_LIBRARY
-IMPLEMENT_DYNAMIC_CLASS(wxIndividualLayoutConstraint, wxObject)
-IMPLEMENT_DYNAMIC_CLASS(wxLayoutConstraints, wxObject)
-IMPLEMENT_DYNAMIC_CLASS(wxSizer, wxObject)
-IMPLEMENT_DYNAMIC_CLASS(wxRowColSizer, wxSizer)
-IMPLEMENT_DYNAMIC_CLASS(wxSpacingSizer, wxSizer)
+#ifndef WX_PRECOMP
+ #include "wx/window.h"
+ #include "wx/utils.h"
+ #include "wx/dialog.h"
+ #include "wx/msgdlg.h"
+ #include "wx/intl.h"
#endif
-/*
-TODO:
- - Non shrink-to-fit row-col behaviour.
- - Give justification styles, so can e.g. centre
- the rows & cols, distribute the available space...
- - Shrink-to-fit: should resize outer window (e.g. dialog box)
- if directly associated with this kind of window.
- - How to deal with a rowcol that stretches in one direction
- but shrinks-to-fit in other. E.g. a horizontal toolbar: the width
- stretches to fit the frame, but the height is constant
- or wraps around contents. The algorithm currently assumes
- both dimensions have the same behaviour. Could assume a constant
- height (absolute value).
- - rowcol where each row or column is aligned (length of
- largest element determines spacing)
- - Groupbox sizer
- - Analyze aesthetic dialog boxes and implement using sizers.
- - What reuseable components can we provide? E.g. Ok/Cancel/Help
- group of buttons.
- - use wxStaticItems for aesthetic dialogs.
+#include "wx/layout.h"
-*/
-
-// Find margin sizes if a sizer, or zero otherwise
-int wxSizerMarginX(wxWindow *win)
-{
- if ( win->IsKindOf(CLASSINFO(wxSizer)) )
- {
- wxSizer *sizer = (wxSizer *)win;
- return sizer->GetBorderX();
- }
- else
- return 0;
-}
-
-int wxSizerMarginY(wxWindow *win)
-{
- if ( win->IsKindOf(CLASSINFO(wxSizer)) )
- {
- wxSizer *sizer = (wxSizer *)win;
- return sizer->GetBorderY();
- }
- else
- return 0;
-}
+ IMPLEMENT_DYNAMIC_CLASS(wxIndividualLayoutConstraint, wxObject)
+ IMPLEMENT_DYNAMIC_CLASS(wxLayoutConstraints, wxObject)
wxIndividualLayoutConstraint::wxIndividualLayoutConstraint()
{
- myEdge = wxTop; relationship = wxUnconstrained; margin = 0; value = 0; percent = 0; otherEdge = wxTop;
- done = FALSE; otherWin = (wxWindow *) NULL;
-}
-
-wxIndividualLayoutConstraint::~wxIndividualLayoutConstraint()
-{
-}
-
-void wxIndividualLayoutConstraint::Set(wxRelationship rel, wxWindow *otherW, wxEdge otherE, int val, int marg)
-{
- relationship = rel; otherWin = otherW; otherEdge = otherE; value = val; margin = marg;
-}
-
-void wxIndividualLayoutConstraint::LeftOf(wxWindow *sibling, int marg)
-{ Set(wxLeftOf, sibling, wxLeft, 0, marg); }
-
-void wxIndividualLayoutConstraint::RightOf(wxWindow *sibling, int marg)
-{ Set(wxRightOf, sibling, wxRight, 0, marg); }
-
-void wxIndividualLayoutConstraint::Above(wxWindow *sibling, int marg)
-{ Set(wxAbove, sibling, wxTop, 0, marg); }
-
-void wxIndividualLayoutConstraint::Below(wxWindow *sibling, int marg)
-{ Set(wxBelow, sibling, wxBottom, 0, marg); }
-
-//
-// 'Same edge' alignment
-//
-void wxIndividualLayoutConstraint::SameAs(wxWindow *otherW, wxEdge edge, int marg)
-{ Set(wxPercentOf, otherW, edge, 0, marg); percent = 100; }
-
-// The edge is a percentage of the other window's edge
-void wxIndividualLayoutConstraint::PercentOf(wxWindow *otherW, wxEdge wh, int per)
-{ otherWin = otherW; relationship = wxPercentOf; percent = per;
- otherEdge = wh;
-}
-
-//
-// Edge has absolute value
-//
-void wxIndividualLayoutConstraint::Absolute(int val)
-{ value = val; relationship = wxAbsolute; }
-
-// Reset constraint if it mentions otherWin
-bool wxIndividualLayoutConstraint::ResetIfWin(wxWindow *otherW)
-{
- if (otherW == otherWin)
- {
- myEdge = wxTop; relationship = wxAsIs; margin = 0; value = 0; percent = 0; otherEdge = wxTop;
- otherWin = (wxWindow *) NULL;
- return TRUE;
- }
- else
- return FALSE;
-}
-
-// Try to satisfy constraint
-bool wxIndividualLayoutConstraint::SatisfyConstraint(wxLayoutConstraints *constraints, wxWindow *win)
-{
- if (relationship == wxAbsolute)
- {
- done = TRUE;
- return TRUE;
- }
-
- switch (myEdge)
- {
- case wxLeft:
- {
- switch (relationship)
- {
- case wxLeftOf:
- {
- // We can know this edge if: otherWin is win's parent,
- // or otherWin has a satisfied constraint, or
- // otherWin has no constraint.
- int edgePos = GetEdge(otherEdge, win, otherWin);
- if (edgePos != -1)
- {
- value = edgePos - margin;
- done = TRUE;
- return TRUE;
- }
- else
- return FALSE;
- }
- case wxRightOf:
- {
- int edgePos = GetEdge(otherEdge, win, otherWin);
- if (edgePos != -1)
- {
- value = edgePos + margin;
- done = TRUE;
- return TRUE;
- }
- else
- return FALSE;
- }
- case wxPercentOf:
- {
- int edgePos = GetEdge(otherEdge, win, otherWin);
- if (edgePos != -1)
- {
- value = (int)(edgePos*(((float)percent)*0.01) + margin);
- done = TRUE;
- return TRUE;
- }
- else
- return FALSE;
- }
- case wxUnconstrained:
- {
- // We know the left-hand edge position if we know
- // the right-hand edge and we know the width; OR if we know the centre and the width.
- if (constraints->right.GetDone() && constraints->width.GetDone())
- {
- value = (constraints->right.GetValue() - constraints->width.GetValue() + margin);
- done = TRUE;
- return TRUE;
- }
- else if (constraints->centreX.GetDone() && constraints->width.GetDone())
- {
- value = (int)(constraints->centreX.GetValue() - (constraints->width.GetValue()/2) + margin);
- done = TRUE;
- return TRUE;
- }
- else
- return FALSE;
- }
- case wxAsIs:
- {
- int y;
- win->GetPosition(&value, &y);
- done = TRUE;
- return TRUE;
- }
- default:
- break;
- }
- break;
- }
- case wxRight:
- {
- switch (relationship)
- {
- case wxLeftOf:
- {
- // We can know this edge if: otherWin is win's parent,
- // or otherWin has a satisfied constraint, or
- // otherWin has no constraint.
- int edgePos = GetEdge(otherEdge, win, otherWin);
- if (edgePos != -1)
- {
- value = edgePos - margin;
- done = TRUE;
- return TRUE;
- }
- else
- return FALSE;
- }
- case wxRightOf:
- {
- int edgePos = GetEdge(otherEdge, win, otherWin);
- if (edgePos != -1)
- {
- value = edgePos + margin;
- done = TRUE;
- return TRUE;
- }
- else
- return FALSE;
- }
- case wxPercentOf:
- {
- int edgePos = GetEdge(otherEdge, win, otherWin);
- if (edgePos != -1)
- {
- value = (int)(edgePos*(((float)percent)*0.01) - margin);
- done = TRUE;
- return TRUE;
- }
- else
- return FALSE;
- }
- case wxUnconstrained:
- {
- // We know the right-hand edge position if we know
- // the left-hand edge and we know the width, OR if we know the
- // centre edge and the width.
- if (constraints->left.GetDone() && constraints->width.GetDone())
- {
- value = (constraints->left.GetValue() + constraints->width.GetValue() - margin);
- done = TRUE;
- return TRUE;
- }
- else if (constraints->centreX.GetDone() && constraints->width.GetDone())
- {
- value = (int)(constraints->centreX.GetValue() + (constraints->width.GetValue()/2) - margin);
- done = TRUE;
- return TRUE;
- }
- else
- return FALSE;
- }
- case wxAsIs:
- {
- int x, y;
- int w, h;
- win->GetSize(&w, &h);
- win->GetPosition(&x, &y);
- value = x + w;
- done = TRUE;
- return TRUE;
- }
- default:
- break;
- }
- break;
- }
- case wxTop:
- {
- switch (relationship)
- {
- case wxAbove:
- {
- // We can know this edge if: otherWin is win's parent,
- // or otherWin has a satisfied constraint, or
- // otherWin has no constraint.
- int edgePos = GetEdge(otherEdge, win, otherWin);
- if (edgePos != -1)
- {
- value = edgePos - margin;
- done = TRUE;
- return TRUE;
- }
- else
- return FALSE;
- }
- case wxBelow:
- {
- int edgePos = GetEdge(otherEdge, win, otherWin);
- if (edgePos != -1)
- {
- value = edgePos + margin;
- done = TRUE;
- return TRUE;
- }
- else
- return FALSE;
- }
- case wxPercentOf:
- {
- int edgePos = GetEdge(otherEdge, win, otherWin);
- if (edgePos != -1)
- {
- value = (int)(edgePos*(((float)percent)*0.01) + margin);
- done = TRUE;
- return TRUE;
- }
- else
- return FALSE;
- }
- case wxUnconstrained:
- {
- // We know the top edge position if we know
- // the bottom edge and we know the height; OR if we know the centre
- // edge and the height.
- if (constraints->bottom.GetDone() && constraints->height.GetDone())
- {
- value = (constraints->bottom.GetValue() - constraints->height.GetValue() + margin);
- done = TRUE;
- return TRUE;
- }
- else if (constraints->centreY.GetDone() && constraints->height.GetDone())
- {
- value = (constraints->centreY.GetValue() - (constraints->height.GetValue()/2) + margin);
- done = TRUE;
- return TRUE;
- }
- else
- return FALSE;
- }
- case wxAsIs:
- {
- int x;
- win->GetPosition(&x, &value);
- done = TRUE;
- return TRUE;
- }
- default:
- break;
- }
- break;
- }
- case wxBottom:
- {
- switch (relationship)
- {
- case wxAbove:
- {
- // We can know this edge if: otherWin is win's parent,
- // or otherWin has a satisfied constraint, or
- // otherWin has no constraint.
- int edgePos = GetEdge(otherEdge, win, otherWin);
- if (edgePos != -1)
- {
- value = edgePos + margin;
- done = TRUE;
- return TRUE;
- }
- else
- return FALSE;
- }
- case wxBelow:
- {
- int edgePos = GetEdge(otherEdge, win, otherWin);
- if (edgePos != -1)
- {
- value = edgePos - margin;
- done = TRUE;
- return TRUE;
- }
- else
- return FALSE;
- }
- case wxPercentOf:
- {
- int edgePos = GetEdge(otherEdge, win, otherWin);
- if (edgePos != -1)
- {
- value = (int)(edgePos*(((float)percent)*0.01) - margin);
- done = TRUE;
- return TRUE;
- }
- else
- return FALSE;
- }
- case wxUnconstrained:
- {
- // We know the bottom edge position if we know
- // the top edge and we know the height; OR if we know the
- // centre edge and the height.
- if (constraints->top.GetDone() && constraints->height.GetDone())
- {
- value = (constraints->top.GetValue() + constraints->height.GetValue() - margin);
- done = TRUE;
- return TRUE;
- }
- else if (constraints->centreY.GetDone() && constraints->height.GetDone())
- {
- value = (constraints->centreY.GetValue() + (constraints->height.GetValue()/2) - margin);
- done = TRUE;
- return TRUE;
- }
- else
- return FALSE;
- }
- case wxAsIs:
- {
- int x, y;
- int w, h;
- win->GetSize(&w, &h);
- win->GetPosition(&x, &y);
- value = h + y;
- done = TRUE;
- return TRUE;
- }
- default:
- break;
- }
- break;
- }
- case wxCentreX:
- {
- switch (relationship)
- {
- case wxLeftOf:
- {
- // We can know this edge if: otherWin is win's parent,
- // or otherWin has a satisfied constraint, or
- // otherWin has no constraint.
- int edgePos = GetEdge(otherEdge, win, otherWin);
- if (edgePos != -1)
- {
- value = edgePos - margin;
- done = TRUE;
- return TRUE;
- }
- else
- return FALSE;
- }
- case wxRightOf:
- {
- int edgePos = GetEdge(otherEdge, win, otherWin);
- if (edgePos != -1)
- {
- value = edgePos + margin;
- done = TRUE;
- return TRUE;
- }
- else
- return FALSE;
- }
- case wxPercentOf:
- {
- int edgePos = GetEdge(otherEdge, win, otherWin);
- if (edgePos != -1)
- {
- value = (int)(edgePos*(((float)percent)*0.01) + margin);
- done = TRUE;
- return TRUE;
- }
- else
- return FALSE;
- }
- case wxUnconstrained:
- {
- // We know the centre position if we know
- // the left-hand edge and we know the width, OR
- // the right-hand edge and the width
- if (constraints->left.GetDone() && constraints->width.GetDone())
- {
- value = (int)(constraints->left.GetValue() + (constraints->width.GetValue()/2) + margin);
- done = TRUE;
- return TRUE;
- }
- else if (constraints->right.GetDone() && constraints->width.GetDone())
- {
- value = (int)(constraints->left.GetValue() - (constraints->width.GetValue()/2) + margin);
- done = TRUE;
- return TRUE;
- }
- else
- return FALSE;
- }
- default:
- break;
- }
- break;
- }
- case wxCentreY:
- {
- switch (relationship)
- {
- case wxAbove:
- {
- // We can know this edge if: otherWin is win's parent,
- // or otherWin has a satisfied constraint, or
- // otherWin has no constraint.
- int edgePos = GetEdge(otherEdge, win, otherWin);
- if (edgePos != -1)
- {
- value = edgePos - margin;
- done = TRUE;
- return TRUE;
- }
- else
- return FALSE;
- }
- case wxBelow:
- {
- int edgePos = GetEdge(otherEdge, win, otherWin);
- if (edgePos != -1)
- {
- value = edgePos + margin;
- done = TRUE;
- return TRUE;
- }
- else
- return FALSE;
- }
- case wxPercentOf:
- {
- int edgePos = GetEdge(otherEdge, win, otherWin);
- if (edgePos != -1)
- {
- value = (int)(edgePos*(((float)percent)*0.01) + margin);
- done = TRUE;
- return TRUE;
- }
- else
- return FALSE;
- }
- case wxUnconstrained:
- {
- // We know the centre position if we know
- // the top edge and we know the height, OR
- // the bottom edge and the height.
- if (constraints->bottom.GetDone() && constraints->height.GetDone())
- {
- value = (int)(constraints->bottom.GetValue() - (constraints->height.GetValue()/2) + margin);
- done = TRUE;
- return TRUE;
- }
- else if (constraints->top.GetDone() && constraints->height.GetDone())
- {
- value = (int)(constraints->top.GetValue() + (constraints->height.GetValue()/2) + margin);
- done = TRUE;
- return TRUE;
- }
- else
- return FALSE;
- }
- default:
- break;
- }
- break;
- }
- case wxWidth:
- {
- switch (relationship)
- {
- case wxPercentOf:
- {
- int edgePos = GetEdge(otherEdge, win, otherWin);
- if (edgePos != -1)
- {
- value = (int)(edgePos*(((float)percent)*0.01));
- done = TRUE;
- return TRUE;
- }
- else
- return FALSE;
- }
- case wxAsIs:
- {
- if (win)
- {
- int h;
- win->GetSize(&value, &h);
- done = TRUE;
- return TRUE;
- }
- else return FALSE;
- }
- case wxUnconstrained:
- {
- // We know the width if we know the left edge and the right edge, OR
- // if we know the left edge and the centre, OR
- // if we know the right edge and the centre
- if (constraints->left.GetDone() && constraints->right.GetDone())
- {
- value = constraints->right.GetValue() - constraints->left.GetValue();
- done = TRUE;
- return TRUE;
- }
- else if (constraints->centreX.GetDone() && constraints->left.GetDone())
- {
- value = (int)(2*(constraints->centreX.GetValue() - constraints->left.GetValue()));
- done = TRUE;
- return TRUE;
- }
- else if (constraints->centreX.GetDone() && constraints->right.GetDone())
- {
- value = (int)(2*(constraints->right.GetValue() - constraints->centreX.GetValue()));
- done = TRUE;
- return TRUE;
- }
- else
- return FALSE;
- }
- default:
- break;
- }
- break;
- }
- case wxHeight:
- {
- switch (relationship)
- {
- case wxPercentOf:
- {
- int edgePos = GetEdge(otherEdge, win, otherWin);
- if (edgePos != -1)
- {
- value = (int)(edgePos*(((float)percent)*0.01));
- done = TRUE;
- return TRUE;
- }
- else
- return FALSE;
- }
- case wxAsIs:
- {
- if (win)
- {
- int w;
- win->GetSize(&w, &value);
- done = TRUE;
- return TRUE;
- }
- else return FALSE;
- }
- case wxUnconstrained:
- {
- // We know the height if we know the top edge and the bottom edge, OR
- // if we know the top edge and the centre, OR
- // if we know the bottom edge and the centre
- if (constraints->top.GetDone() && constraints->bottom.GetDone())
- {
- value = constraints->bottom.GetValue() - constraints->top.GetValue();
- done = TRUE;
- return TRUE;
- }
- else if (constraints->top.GetDone() && constraints->centreY.GetDone())
- {
- value = (int)(2*(constraints->centreY.GetValue() - constraints->top.GetValue()));
- done = TRUE;
- return TRUE;
- }
- else if (constraints->bottom.GetDone() && constraints->centreY.GetDone())
- {
- value = (int)(2*(constraints->bottom.GetValue() - constraints->centreY.GetValue()));
- done = TRUE;
- return TRUE;
- }
- else
- return FALSE;
- }
- default:
- break;
- }
- break;
- }
- default:
- break;
- }
- return FALSE;
-}
-
-// Get the value of this edge or dimension, or if this
-// is not determinable, -1.
-int wxIndividualLayoutConstraint::GetEdge(wxEdge which,
- wxWindow *thisWin,
- wxWindow *other) const
-{
- // If the edge or dimension belongs to the parent, then we
- // know the dimension is obtainable immediately.
- // E.g. a wxExpandSizer may contain a button (but the button's
- // true parent is a panel, not the sizer)
- if (other->GetChildren().Member(thisWin))
- {
- switch (which)
- {
- case wxLeft:
- {
- return wxSizerMarginX(other);
- }
- case wxTop:
- {
- return wxSizerMarginY(other);
- }
- case wxRight:
- {
- int w, h;
- other->GetClientSizeConstraint(&w, &h);
- return w - wxSizerMarginX(other);
- }
- case wxBottom:
- {
- int w, h;
- other->GetClientSizeConstraint(&w, &h);
- return h - wxSizerMarginY(other);
- }
- case wxWidth:
- {
- int w, h;
- other->GetClientSizeConstraint(&w, &h);
- return w - 2*wxSizerMarginX(other);
- }
- case wxHeight:
- {
- int w, h;
- other->GetClientSizeConstraint(&w, &h);
- return h - 2*wxSizerMarginY(other);
- }
- case wxCentreX:
- case wxCentreY:
- {
- int w, h;
- other->GetClientSizeConstraint(&w, &h);
- if (which == wxCentreX)
- return (int)(w/2);
- else
- return (int)(h/2);
- }
- default:
- return -1;
- }
- }
- switch (which)
- {
- case wxLeft:
- {
- wxLayoutConstraints *constr = other->GetConstraints();
- // If no constraints, it means the window is not dependent
- // on anything, and therefore we know its value immediately
- if (constr)
- {
- if (constr->left.GetDone())
- return constr->left.GetValue();
- else
- return -1;
- }
- else
- {
- int x, y;
- other->GetPosition(&x, &y);
- return x;
- }
- }
- case wxTop:
- {
- wxLayoutConstraints *constr = other->GetConstraints();
- // If no constraints, it means the window is not dependent
- // on anything, and therefore we know its value immediately
- if (constr)
- {
- if (constr->top.GetDone())
- return constr->top.GetValue();
- else
- return -1;
- }
- else
- {
- int x, y;
- other->GetPosition(&x, &y);
- return y;
- }
- }
- case wxRight:
- {
- wxLayoutConstraints *constr = other->GetConstraints();
- // If no constraints, it means the window is not dependent
- // on anything, and therefore we know its value immediately
- if (constr)
- {
- if (constr->right.GetDone())
- return constr->right.GetValue();
- else
- return -1;
- }
- else
- {
- int x, y, w, h;
- other->GetPosition(&x, &y);
- other->GetSize(&w, &h);
- return (int)(x + w);
- }
- }
- case wxBottom:
- {
- wxLayoutConstraints *constr = other->GetConstraints();
- // If no constraints, it means the window is not dependent
- // on anything, and therefore we know its value immediately
- if (constr)
- {
- if (constr->bottom.GetDone())
- return constr->bottom.GetValue();
- else
- return -1;
- }
- else
- {
- int x, y, w, h;
- other->GetPosition(&x, &y);
- other->GetSize(&w, &h);
- return (int)(y + h);
- }
- }
- case wxWidth:
- {
- wxLayoutConstraints *constr = other->GetConstraints();
- // If no constraints, it means the window is not dependent
- // on anything, and therefore we know its value immediately
- if (constr)
- {
- if (constr->width.GetDone())
- return constr->width.GetValue();
- else
- return -1;
- }
- else
- {
- int w, h;
- other->GetSize(&w, &h);
- return w;
- }
- }
- case wxHeight:
- {
- wxLayoutConstraints *constr = other->GetConstraints();
- // If no constraints, it means the window is not dependent
- // on anything, and therefore we know its value immediately
- if (constr)
- {
- if (constr->height.GetDone())
- return constr->height.GetValue();
- else
- return -1;
- }
- else
- {
- int w, h;
- other->GetSize(&w, &h);
- return h;
- }
- }
- case wxCentreX:
- {
- wxLayoutConstraints *constr = other->GetConstraints();
- // If no constraints, it means the window is not dependent
- // on anything, and therefore we know its value immediately
- if (constr)
- {
- if (constr->centreX.GetDone())
- return constr->centreX.GetValue();
- else
- return -1;
- }
- else
- {
- int x, y, w, h;
- other->GetPosition(&x, &y);
- other->GetSize(&w, &h);
- return (int)(x + (w/2));
- }
- }
- case wxCentreY:
- {
- wxLayoutConstraints *constr = other->GetConstraints();
- // If no constraints, it means the window is not dependent
- // on anything, and therefore we know its value immediately
- if (constr)
- {
- if (constr->centreY.GetDone())
- return constr->centreY.GetValue();
- else
- return -1;
- }
- else
- {
- int x, y, w, h;
- other->GetPosition(&x, &y);
- other->GetSize(&w, &h);
- return (int)(y + (h/2));
- }
- }
- default:
- break;
- }
- return -1;
-}
-
-wxLayoutConstraints::wxLayoutConstraints()
-{
- left.SetEdge(wxLeft);
- top.SetEdge(wxTop);
- right.SetEdge(wxRight);
- bottom.SetEdge(wxBottom);
- centreX.SetEdge(wxCentreX);
- centreY.SetEdge(wxCentreY);
- width.SetEdge(wxWidth);
- height.SetEdge(wxHeight);
+ myEdge = wxTop;
+ relationship = wxUnconstrained;
+ margin = 0;
+ value = 0;
+ percent = 0;
+ otherEdge = wxTop;
+ done = false;
+ otherWin = (wxWindowBase *) NULL;
}
-wxLayoutConstraints::~wxLayoutConstraints()
+void wxIndividualLayoutConstraint::Set(wxRelationship rel, wxWindowBase *otherW, wxEdge otherE, int val, int marg)
{
-}
-
-bool wxLayoutConstraints::SatisfyConstraints(wxWindow *win, int *nChanges)
-{
- int noChanges = 0;
-
- bool done = width.GetDone();
- bool newDone = (done ? TRUE : width.SatisfyConstraint(this, win));
- if (newDone != done)
- noChanges ++;
-
- done = height.GetDone();
- newDone = (done ? TRUE : height.SatisfyConstraint(this, win));
- if (newDone != done)
- noChanges ++;
-
- done = left.GetDone();
- newDone = (done ? TRUE : left.SatisfyConstraint(this, win));
- if (newDone != done)
- noChanges ++;
-
- done = top.GetDone();
- newDone = (done ? TRUE : top.SatisfyConstraint(this, win));
- if (newDone != done)
- noChanges ++;
-
- done = right.GetDone();
- newDone = (done ? TRUE : right.SatisfyConstraint(this, win));
- if (newDone != done)
- noChanges ++;
-
- done = bottom.GetDone();
- newDone = (done ? TRUE : bottom.SatisfyConstraint(this, win));
- if (newDone != done)
- noChanges ++;
-
- done = centreX.GetDone();
- newDone = (done ? TRUE : centreX.SatisfyConstraint(this, win));
- if (newDone != done)
- noChanges ++;
-
- done = centreY.GetDone();
- newDone = (done ? TRUE : centreY.SatisfyConstraint(this, win));
- if (newDone != done)
- noChanges ++;
-
- *nChanges = noChanges;
-
- return AreSatisfied();
-}
-
-/*
- * Main constrained layout algorithm. Look at all the child
- * windows, and their constraints (if any).
- * The idea is to keep iterating through the constraints
- * until all left, right, bottom and top edges, and widths and heights,
- * are known (or no change occurs and we've failed to resolve all
- * constraints).
- *
- * If the user has not specified a dimension or edge, it will be
- * be calculated from the other known values. E.g. If we know
- * the right hand edge and the left hand edge, we now know the width.
- * The snag here is that this means we must specify absolute dimensions
- * twice (in constructor and in constraint), if we wish to use the
- * constraint notation to just set the position, for example.
- * Otherwise, if we only set ONE edge and no dimension, it would never
- * find the other edge.
- *
- * Algorithm:
-
- Mark all constraints as not done.
-
- iterations = 0;
- until no change or iterations >= max iterations
- For each child:
+ if (rel == wxSameAs)
{
- Calculate all constraints
+ // If Set is called by the user with wxSameAs then call SameAs to do
+ // it since it will actually use wxPercent instead.
+ SameAs(otherW, otherE, marg);
+ return;
}
- iterations ++;
-
- For each child
- Set each calculated position and size
-
- */
-
-bool wxOldDoLayout(wxWindow *win)
-{
- // Make sure this isn't called recursively from below
- static wxList doneSoFar;
-
- if (doneSoFar.Member(win))
- return TRUE;
- doneSoFar.Append(win);
+ relationship = rel;
+ otherWin = otherW;
+ otherEdge = otherE;
- wxNode *node = win->GetChildren().First();
- while (node)
- {
- wxWindow *child = (wxWindow *)node->Data();
- wxLayoutConstraints *constr = child->GetConstraints();
- if (constr)
- {
- constr->left.SetDone(FALSE);
- constr->top.SetDone(FALSE);
- constr->right.SetDone(FALSE);
- constr->bottom.SetDone(FALSE);
- constr->width.SetDone(FALSE);
- constr->height.SetDone(FALSE);
- constr->centreX.SetDone(FALSE);
- constr->centreY.SetDone(FALSE);
- }
- node = node->Next();
- }
- int noIterations = 0;
- int maxIterations = 500;
- int noChanges = 1;
-
- while ((noChanges > 0) && (noIterations < maxIterations))
- {
- noChanges = 0;
- wxNode *node = win->GetChildren().First();
- while (node)
- {
- wxWindow *child = (wxWindow *)node->Data();
- wxLayoutConstraints *constr = child->GetConstraints();
- if (constr)
- {
- int tempNoChanges = 0;
- (void)constr->SatisfyConstraints(child, &tempNoChanges);
- noChanges += tempNoChanges;
- }
- node = node->Next();
- }
- noIterations ++;
- }
-/*
- // Would be nice to have a test here to see _which_ constraint(s)
- // failed, so we can print a specific diagnostic message.
- if (noFailures > 0)
- {
- wxDebugMsg(_("wxWindow::Layout() failed.\n"));
- }
-*/
- // Now set the sizes and positions of the children, and
- // recursively call Layout().
- node = win->GetChildren().First();
- while (node)
- {
- wxWindow *child = (wxWindow *)node->Data();
- wxLayoutConstraints *constr = child->GetConstraints();
- if (constr && constr->left.GetDone() && constr->right.GetDone() &&
- constr->width.GetDone() && constr->height.GetDone())
+ if ( rel == wxPercentOf )
{
- int x = constr->left.GetValue();
- int y = constr->top.GetValue();
- int w = constr->width.GetValue();
- int h = constr->height.GetValue();
-
- // If we don't want to resize this window, just move it...
- if ((constr->width.GetRelationship() != wxAsIs) ||
- (constr->height.GetRelationship() != wxAsIs))
- {
- // _Should_ call Layout() recursively.
- child->SetSize(x, y, w, h);
- }
- else
- {
- child->Move(x, y);
- }
+ percent = val;
}
else
- child->Layout();
- node = node->Next();
- }
- doneSoFar.DeleteObject(win);
-
- return TRUE;
-}
-
-wxSizer::wxSizer()
-{
- sizerBehaviour = wxSizerNone;
- borderX = 2;
- borderY = 2;
- sizerX = 0;
- sizerY = 0;
- sizerWidth = 0;
- sizerHeight = 0;
-}
-
-wxSizer::wxSizer(wxWindow *parent, wxSizerBehaviour behav)
-{
- Create(parent, behav);
-}
-
-bool wxSizer::Create(wxWindow *parent, wxSizerBehaviour behav)
-{
- sizerBehaviour = behav;
- borderX = 2;
- borderY = 2;
- m_sizerParent = parent;
- sizerX = 0;
- sizerY = 0;
- sizerWidth = 0;
- sizerHeight = 0;
-
- // A normal window can have just one top-level sizer
- // associated with it.
- if (!parent->IsKindOf(CLASSINFO(wxSizer)))
- {
- parent->SetSizer(this);
- }
- else
- ((wxSizer *)parent)->AddSizerChild(this);
-
- switch (sizerBehaviour)
- {
- case wxSizerExpand:
- {
- // Defines a set of constraints
- // to expand the sizer to fit the parent window
- wxLayoutConstraints *c = new wxLayoutConstraints;
-
- c->left.SameAs(parent, wxLeft, 0);
- c->top.SameAs(parent, wxTop, 0);
- c->right.SameAs(parent, wxRight, 0);
- c->bottom.SameAs(parent, wxBottom, 0);
-
- SetConstraints(c);
- break;
- }
- case wxSizerShrink:
- case wxSizerNone:
- default:
{
+ value = val;
}
- }
- return TRUE;
+
+ margin = marg;
}
-wxSizer::~wxSizer()
+void wxIndividualLayoutConstraint::LeftOf(wxWindowBase *sibling, int marg)
{
- // Remove all children without deleting them,
- // or ~wxbWindow will delete proper windows _twice_
- wxNode *node = GetChildren().First();
- while (node)
- {
- wxNode *next = node->Next();
- wxWindow *win = (wxWindow *)node->Data();
- if (!win->IsKindOf(CLASSINFO(wxSizer)))
- {
- delete node;
- win->SetSizerParent((wxWindow *) NULL);
- }
- else
- {
- RemoveSizerChild(win);
- delete win;
- }
- node = next;
- }
-
- if (m_sizerParent) // && !m_sizerParent->IsKindOf(CLASSINFO(wxSizer)))
- {
- m_sizerParent->SetSizer((wxSizer *) NULL);
- m_sizerParent = (wxWindow *) NULL;
- }
-
+ Set(wxLeftOf, sibling, wxLeft, 0, marg);
}
-void wxSizer::SetBorder(int x, int y)
+void wxIndividualLayoutConstraint::RightOf(wxWindowBase *sibling, int marg)
{
- borderX = x;
- borderY = y;
-/* No: the margin is for inside, not outside (expansion)
-
- if ( GetConstraints() )
- {
- GetConstraints()->left.SetMargin(x);
- GetConstraints()->right.SetMargin(x);
- GetConstraints()->top.SetMargin(y);
- GetConstraints()->bottom.SetMargin(y);
- }
-*/
-
+ Set(wxRightOf, sibling, wxRight, 0, marg);
}
-void wxSizer::AddSizerChild(wxWindow *child)
+void wxIndividualLayoutConstraint::Above(wxWindowBase *sibling, int marg)
{
- child->SetSizerParent(this);
- GetChildren().Append(child);
-
- // Add some constraints for the purpose of storing
- // the relative position of the window/sizer
- // during layout calculations.
- if (!child->GetConstraints())
- {
- wxLayoutConstraints *c = new wxLayoutConstraints;
- c->left.AsIs();
- c->top.AsIs();
- c->width.AsIs();
- c->height.AsIs();
- int w, h;
- child->GetSize(&w, &h);
- c->width.SetValue(w);
- c->height.SetValue(h);
-
- child->SetConstraints(c);
- }
+ Set(wxAbove, sibling, wxTop, 0, marg);
}
-void wxSizer::RemoveSizerChild(wxWindow *child)
+void wxIndividualLayoutConstraint::Below(wxWindowBase *sibling, int marg)
{
- GetChildren().DeleteObject(child);
+ Set(wxBelow, sibling, wxBottom, 0, marg);
}
-void wxSizer::DoSetSize(int x, int y, int w, int h, int WXUNUSED(flags))
+//
+// 'Same edge' alignment
+//
+void wxIndividualLayoutConstraint::SameAs(wxWindowBase *otherW, wxEdge edge, int marg)
{
- wxLayoutConstraints *constr = GetConstraints();
- if (x != -1)
- {
- sizerX = x;
- if (constr)
- constr->left.SetValue(x);
- }
- if (y != -1)
- {
- sizerY = y;
- if (constr)
- constr->top.SetValue(y);
- }
- if (w != -1)
- {
- sizerWidth = w;
- if (constr)
- constr->width.SetValue(w);
- }
- if (h != -1)
- {
- sizerHeight = h;
- if (constr)
- constr->height.SetValue(h);
- }
+ Set(wxPercentOf, otherW, edge, 100, marg);
}
-void wxSizer::GetSize(int *w, int *h) const
+// The edge is a percentage of the other window's edge
+void wxIndividualLayoutConstraint::PercentOf(wxWindowBase *otherW, wxEdge wh, int per)
{
- *w = sizerWidth;
- *h = sizerHeight;
+ Set(wxPercentOf, otherW, wh, per);
}
-void wxSizer::GetPosition(int *x, int *y) const
+//
+// Edge has absolute value
+//
+void wxIndividualLayoutConstraint::Absolute(int val)
{
- *x = sizerX;
- *y = sizerY;
+ value = val;
+ relationship = wxAbsolute;
}
-bool wxSizer::LayoutPhase1(int *noChanges)
+// Reset constraint if it mentions otherWin
+bool wxIndividualLayoutConstraint::ResetIfWin(wxWindowBase *otherW)
{
- *noChanges = 0;
- switch (sizerBehaviour)
- {
- case wxSizerExpand:
+ if (otherW == otherWin)
{
- if (!m_sizerParent)
- {
- wxMessageBox(_("wxExpandSizer has no parent!"), _("Sizer error"), wxOK);
- return TRUE;
- }
-
- // Set the size to fill the parent client area
- int pw, ph;
- m_sizerParent->GetClientSize(&pw, &ph);
- SetSize(GetBorderX(), GetBorderY(), pw - 2*GetBorderX(), ph - 2*GetBorderY());
- wxLayoutConstraints *constr = GetConstraints();
-
- // Fill in the constraints
- if (constr)
- {
- constr->left.SetValue(0); constr->left.SetDone(TRUE);
- constr->top.SetValue(0); constr->right.SetDone(TRUE);
- constr->width.SetValue(pw); constr->width.SetDone(TRUE);
- constr->height.SetValue(ph); constr->height.SetDone(TRUE);
- }
-
- return TRUE;
- break;
+ myEdge = wxTop;
+ relationship = wxAsIs;
+ margin = 0;
+ value = 0;
+ percent = 0;
+ otherEdge = wxTop;
+ otherWin = (wxWindowBase *) NULL;
+ return true;
}
- case wxSizerShrink:
- {
- wxLayoutConstraints *constr = GetConstraints();
- if (constr)
- {
- // Force the constraint to have as-is width and height
- // if we're in shrink-to-fit mode, because if left unconstrained,
- // SatisfyConstraints will fail. The shrink-to-fit option
- // essentially specifies the width and height as 'whatever I calculate'.
- constr->width.AsIs();
- constr->height.AsIs();
- }
- DoPhase(1);
- DoPhase(2);
- // Find the bounding box and set own size
- int maxX = 0;
- int maxY = 0;
-
- wxNode *node = GetChildren().First();
- while (node)
- {
- int x, y, width, height;
- wxWindow *win = (wxWindow *)node->Data();
- win->GetSizeConstraint(&width, &height);
- win->GetPositionConstraint(&x, &y);
- if ((x+width) > maxX)
- maxX = (x + width);
- if ((y+height) > maxY)
- maxY = (y + height);
-
- node = node->Next();
- }
- SetSize(GetBorderX(), GetBorderY(), maxX, maxY);
-
- // If this is the only sizer for the parent, size the parent to this sizer.
- if ( m_sizerParent && (m_sizerParent->GetSizer() == this) )
- m_sizerParent->SetClientSize(maxX + 2*GetBorderX(), maxY + 2*GetBorderY());
+ return false;
+}
- return TRUE;
- break;
- }
- case wxSizerNone:
- {
- wxLayoutConstraints *constr = GetConstraints();
- if (constr)
- {
- bool success = constr->SatisfyConstraints(this, noChanges);
- if (success)
- {
- int x = constr->left.GetValue();
- int y = constr->top.GetValue();
- int w = constr->width.GetValue();
- int h = constr->height.GetValue();
- SetSize(x, y, w, h);
+// Try to satisfy constraint
+bool wxIndividualLayoutConstraint::SatisfyConstraint(wxLayoutConstraints *constraints, wxWindowBase *win)
+{
+ if (relationship == wxAbsolute)
+ {
+ done = true;
+ return true;
+ }
+
+ switch (myEdge)
+ {
+ case wxLeft:
+ {
+ switch (relationship)
+ {
+ case wxLeftOf:
+ {
+ // We can know this edge if: otherWin is win's
+ // parent, or otherWin has a satisfied constraint,
+ // or otherWin has no constraint.
+ int edgePos = GetEdge(otherEdge, win, otherWin);
+ if (edgePos != -1)
+ {
+ value = edgePos - margin;
+ done = true;
+ return true;
+ }
+ else
+ return false;
+ }
+ case wxRightOf:
+ {
+ int edgePos = GetEdge(otherEdge, win, otherWin);
+ if (edgePos != -1)
+ {
+ value = edgePos + margin;
+ done = true;
+ return true;
+ }
+ else
+ return false;
+ }
+ case wxPercentOf:
+ {
+ int edgePos = GetEdge(otherEdge, win, otherWin);
+ if (edgePos != -1)
+ {
+ value = (int)(edgePos*(((float)percent)*0.01) + margin);
+ done = true;
+ return true;
+ }
+ else
+ return false;
+ }
+ case wxUnconstrained:
+ {
+ // We know the left-hand edge position if we know
+ // the right-hand edge and we know the width; OR if
+ // we know the centre and the width.
+ if (constraints->right.GetDone() && constraints->width.GetDone())
+ {
+ value = (constraints->right.GetValue() - constraints->width.GetValue() + margin);
+ done = true;
+ return true;
+ }
+ else if (constraints->centreX.GetDone() && constraints->width.GetDone())
+ {
+ value = (int)(constraints->centreX.GetValue() - (constraints->width.GetValue()/2) + margin);
+ done = true;
+ return true;
+ }
+ else
+ return false;
+ }
+ case wxAsIs:
+ {
+ int y;
+ win->GetPosition(&value, &y);
+ done = true;
+ return true;
+ }
+ default:
+ break;
+ }
+ break;
+ }
+ case wxRight:
+ {
+ switch (relationship)
+ {
+ case wxLeftOf:
+ {
+ // We can know this edge if: otherWin is win's
+ // parent, or otherWin has a satisfied constraint,
+ // or otherWin has no constraint.
+ int edgePos = GetEdge(otherEdge, win, otherWin);
+ if (edgePos != -1)
+ {
+ value = edgePos - margin;
+ done = true;
+ return true;
+ }
+ else
+ return false;
+ }
+ case wxRightOf:
+ {
+ int edgePos = GetEdge(otherEdge, win, otherWin);
+ if (edgePos != -1)
+ {
+ value = edgePos + margin;
+ done = true;
+ return true;
+ }
+ else
+ return false;
+ }
+ case wxPercentOf:
+ {
+ int edgePos = GetEdge(otherEdge, win, otherWin);
+ if (edgePos != -1)
+ {
+ value = (int)(edgePos*(((float)percent)*0.01) - margin);
+ done = true;
+ return true;
+ }
+ else
+ return false;
+ }
+ case wxUnconstrained:
+ {
+ // We know the right-hand edge position if we know the
+ // left-hand edge and we know the width, OR if we know the
+ // centre edge and the width.
+ if (constraints->left.GetDone() && constraints->width.GetDone())
+ {
+ value = (constraints->left.GetValue() + constraints->width.GetValue() - margin);
+ done = true;
+ return true;
+ }
+ else if (constraints->centreX.GetDone() && constraints->width.GetDone())
+ {
+ value = (int)(constraints->centreX.GetValue() + (constraints->width.GetValue()/2) - margin);
+ done = true;
+ return true;
+ }
+ else
+ return false;
+ }
+ case wxAsIs:
+ {
+ int x, y;
+ int w, h;
+ win->GetBestSize(&w, &h);
+ win->GetPosition(&x, &y);
+ value = x + w;
+ done = true;
+ return true;
+ }
+ default:
+ break;
+ }
+ break;
+ }
+ case wxTop:
+ {
+ switch (relationship)
+ {
+ case wxAbove:
+ {
+ // We can know this edge if: otherWin is win's
+ // parent, or otherWin has a satisfied constraint,
+ // or otherWin has no constraint.
+ int edgePos = GetEdge(otherEdge, win, otherWin);
+ if (edgePos != -1)
+ {
+ value = edgePos - margin;
+ done = true;
+ return true;
+ }
+ else
+ return false;
+ }
+ case wxBelow:
+ {
+ int edgePos = GetEdge(otherEdge, win, otherWin);
+ if (edgePos != -1)
+ {
+ value = edgePos + margin;
+ done = true;
+ return true;
+ }
+ else
+ return false;
+ }
+ case wxPercentOf:
+ {
+ int edgePos = GetEdge(otherEdge, win, otherWin);
+ if (edgePos != -1)
+ {
+ value = (int)(edgePos*(((float)percent)*0.01) + margin);
+ done = true;
+ return true;
+ }
+ else
+ return false;
+ }
+ case wxUnconstrained:
+ {
+ // We know the top edge position if we know the bottom edge
+ // and we know the height; OR if we know the centre edge and
+ // the height.
+ if (constraints->bottom.GetDone() && constraints->height.GetDone())
+ {
+ value = (constraints->bottom.GetValue() - constraints->height.GetValue() + margin);
+ done = true;
+ return true;
+ }
+ else if (constraints->centreY.GetDone() && constraints->height.GetDone())
+ {
+ value = (constraints->centreY.GetValue() - (constraints->height.GetValue()/2) + margin);
+ done = true;
+ return true;
+ }
+ else
+ return false;
+ }
+ case wxAsIs:
+ {
+ int x;
+ win->GetPosition(&x, &value);
+ done = true;
+ return true;
+ }
+ default:
+ break;
+ }
+ break;
+ }
+ case wxBottom:
+ {
+ switch (relationship)
+ {
+ case wxAbove:
+ {
+ // We can know this edge if: otherWin is win's parent,
+ // or otherWin has a satisfied constraint, or
+ // otherWin has no constraint.
+ int edgePos = GetEdge(otherEdge, win, otherWin);
+ if (edgePos != -1)
+ {
+ value = edgePos + margin;
+ done = true;
+ return true;
+ }
+ else
+ return false;
+ }
+ case wxBelow:
+ {
+ int edgePos = GetEdge(otherEdge, win, otherWin);
+ if (edgePos != -1)
+ {
+ value = edgePos - margin;
+ done = true;
+ return true;
+ }
+ else
+ return false;
+ }
+ case wxPercentOf:
+ {
+ int edgePos = GetEdge(otherEdge, win, otherWin);
+ if (edgePos != -1)
+ {
+ value = (int)(edgePos*(((float)percent)*0.01) - margin);
+ done = true;
+ return true;
+ }
+ else
+ return false;
+ }
+ case wxUnconstrained:
+ {
+ // We know the bottom edge position if we know the top edge
+ // and we know the height; OR if we know the centre edge and
+ // the height.
+ if (constraints->top.GetDone() && constraints->height.GetDone())
+ {
+ value = (constraints->top.GetValue() + constraints->height.GetValue() - margin);
+ done = true;
+ return true;
+ }
+ else if (constraints->centreY.GetDone() && constraints->height.GetDone())
+ {
+ value = (constraints->centreY.GetValue() + (constraints->height.GetValue()/2) - margin);
+ done = true;
+ return true;
+ }
+ else
+ return false;
+ }
+ case wxAsIs:
+ {
+ int x, y;
+ int w, h;
+ win->GetBestSize(&w, &h);
+ win->GetPosition(&x, &y);
+ value = h + y;
+ done = true;
+ return true;
+ }
+ default:
+ break;
+ }
+ break;
+ }
+ case wxCentreX:
+ {
+ switch (relationship)
+ {
+ case wxLeftOf:
+ {
+ // We can know this edge if: otherWin is win's parent, or
+ // otherWin has a satisfied constraint, or otherWin has no
+ // constraint.
+ int edgePos = GetEdge(otherEdge, win, otherWin);
+ if (edgePos != -1)
+ {
+ value = edgePos - margin;
+ done = true;
+ return true;
+ }
+ else
+ return false;
+ }
+ case wxRightOf:
+ {
+ int edgePos = GetEdge(otherEdge, win, otherWin);
+ if (edgePos != -1)
+ {
+ value = edgePos + margin;
+ done = true;
+ return true;
+ }
+ else
+ return false;
+ }
+ case wxPercentOf:
+ {
+ int edgePos = GetEdge(otherEdge, win, otherWin);
+ if (edgePos != -1)
+ {
+ value = (int)(edgePos*(((float)percent)*0.01) + margin);
+ done = true;
+ return true;
+ }
+ else
+ return false;
+ }
+ case wxUnconstrained:
+ {
+ // We know the centre position if we know
+ // the left-hand edge and we know the width, OR
+ // the right-hand edge and the width
+ if (constraints->left.GetDone() && constraints->width.GetDone())
+ {
+ value = (int)(constraints->left.GetValue() + (constraints->width.GetValue()/2) + margin);
+ done = true;
+ return true;
+ }
+ else if (constraints->right.GetDone() && constraints->width.GetDone())
+ {
+ value = (int)(constraints->left.GetValue() - (constraints->width.GetValue()/2) + margin);
+ done = true;
+ return true;
+ }
+ else
+ return false;
+ }
+ default:
+ break;
+ }
+ break;
+ }
+ case wxCentreY:
+ {
+ switch (relationship)
+ {
+ case wxAbove:
+ {
+ // We can know this edge if: otherWin is win's parent,
+ // or otherWin has a satisfied constraint, or otherWin
+ // has no constraint.
+ int edgePos = GetEdge(otherEdge, win, otherWin);
+ if (edgePos != -1)
+ {
+ value = edgePos - margin;
+ done = true;
+ return true;
+ }
+ else
+ return false;
+ }
+ case wxBelow:
+ {
+ int edgePos = GetEdge(otherEdge, win, otherWin);
+ if (edgePos != -1)
+ {
+ value = edgePos + margin;
+ done = true;
+ return true;
+ }
+ else
+ return false;
+ }
+ case wxPercentOf:
+ {
+ int edgePos = GetEdge(otherEdge, win, otherWin);
+ if (edgePos != -1)
+ {
+ value = (int)(edgePos*(((float)percent)*0.01) + margin);
+ done = true;
+ return true;
+ }
+ else
+ return false;
+ }
+ case wxUnconstrained:
+ {
+ // We know the centre position if we know
+ // the top edge and we know the height, OR
+ // the bottom edge and the height.
+ if (constraints->bottom.GetDone() && constraints->height.GetDone())
+ {
+ value = (int)(constraints->bottom.GetValue() - (constraints->height.GetValue()/2) + margin);
+ done = true;
+ return true;
+ }
+ else if (constraints->top.GetDone() && constraints->height.GetDone())
+ {
+ value = (int)(constraints->top.GetValue() + (constraints->height.GetValue()/2) + margin);
+ done = true;
+ return true;
+ }
+ else
+ return false;
+ }
+ default:
+ break;
+ }
+ break;
+ }
+ case wxWidth:
+ {
+ switch (relationship)
+ {
+ case wxPercentOf:
+ {
+ int edgePos = GetEdge(otherEdge, win, otherWin);
+ if (edgePos != -1)
+ {
+ value = (int)(edgePos*(((float)percent)*0.01));
+ done = true;
+ return true;
+ }
+ else
+ return false;
+ }
+ case wxAsIs:
+ {
+ if (win)
+ {
+ int h;
+ win->GetBestSize(&value, &h);
+ done = true;
+ return true;
+ }
+ else return false;
+ }
+ case wxUnconstrained:
+ {
+ // We know the width if we know the left edge and the right edge, OR
+ // if we know the left edge and the centre, OR
+ // if we know the right edge and the centre
+ if (constraints->left.GetDone() && constraints->right.GetDone())
+ {
+ value = constraints->right.GetValue() - constraints->left.GetValue();
+ done = true;
+ return true;
+ }
+ else if (constraints->centreX.GetDone() && constraints->left.GetDone())
+ {
+ value = (int)(2*(constraints->centreX.GetValue() - constraints->left.GetValue()));
+ done = true;
+ return true;
+ }
+ else if (constraints->centreX.GetDone() && constraints->right.GetDone())
+ {
+ value = (int)(2*(constraints->right.GetValue() - constraints->centreX.GetValue()));
+ done = true;
+ return true;
+ }
+ else
+ return false;
+ }
+ default:
+ break;
+ }
+ break;
+ }
+ case wxHeight:
+ {
+ switch (relationship)
+ {
+ case wxPercentOf:
+ {
+ int edgePos = GetEdge(otherEdge, win, otherWin);
+ if (edgePos != -1)
+ {
+ value = (int)(edgePos*(((float)percent)*0.01));
+ done = true;
+ return true;
+ }
+ else
+ return false;
+ }
+ case wxAsIs:
+ {
+ if (win)
+ {
+ int w;
+ win->GetBestSize(&w, &value);
+ done = true;
+ return true;
+ }
+ else return false;
+ }
+ case wxUnconstrained:
+ {
+ // We know the height if we know the top edge and the bottom edge, OR
+ // if we know the top edge and the centre, OR
+ // if we know the bottom edge and the centre
+ if (constraints->top.GetDone() && constraints->bottom.GetDone())
+ {
+ value = constraints->bottom.GetValue() - constraints->top.GetValue();
+ done = true;
+ return true;
+ }
+ else if (constraints->top.GetDone() && constraints->centreY.GetDone())
+ {
+ value = (int)(2*(constraints->centreY.GetValue() - constraints->top.GetValue()));
+ done = true;
+ return true;
+ }
+ else if (constraints->bottom.GetDone() && constraints->centreY.GetDone())
+ {
+ value = (int)(2*(constraints->bottom.GetValue() - constraints->centreY.GetValue()));
+ done = true;
+ return true;
+ }
+ else
+ return false;
+ }
+ default:
+ break;
+ }
+ break;
}
- return success;
- }
- else
- return TRUE;
- break;
+ default:
+ break;
}
- }
- return TRUE;
-
+ return false;
}
-bool wxSizer::LayoutPhase2(int *noChanges)
-{
- *noChanges = 0;
-
- switch (sizerBehaviour)
- {
- case wxSizerExpand:
- {
- // Layout children
- DoPhase(1);
- DoPhase(2);
- return TRUE;
- }
- case wxSizerShrink:
- {
- wxLayoutConstraints *constr = GetConstraints();
- if (constr)
- {
- bool success = constr->SatisfyConstraints(this, noChanges);
- if (success)
- {
- int x = constr->left.GetValue();
- int y = constr->top.GetValue();
- Move(x, y);
+// Get the value of this edge or dimension, or if this is not determinable, -1.
+int wxIndividualLayoutConstraint::GetEdge(wxEdge which,
+ wxWindowBase *thisWin,
+ wxWindowBase *other) const
+{
+ // If the edge or dimension belongs to the parent, then we know the
+ // dimension is obtainable immediately. E.g. a wxExpandSizer may contain a
+ // button (but the button's true parent is a panel, not the sizer)
+ if (other->GetChildren().Find((wxWindow*)thisWin))
+ {
+ switch (which)
+ {
+ case wxLeft:
+ {
+ return 0;
+ }
+ case wxTop:
+ {
+ return 0;
+ }
+ case wxRight:
+ {
+ int w, h;
+ other->GetClientSizeConstraint(&w, &h);
+ return w;
+ }
+ case wxBottom:
+ {
+ int w, h;
+ other->GetClientSizeConstraint(&w, &h);
+ return h;
+ }
+ case wxWidth:
+ {
+ int w, h;
+ other->GetClientSizeConstraint(&w, &h);
+ return w;
+ }
+ case wxHeight:
+ {
+ int w, h;
+ other->GetClientSizeConstraint(&w, &h);
+ return h;
+ }
+ case wxCentreX:
+ case wxCentreY:
+ {
+ int w, h;
+ other->GetClientSizeConstraint(&w, &h);
+ if (which == wxCentreX)
+ return (int)(w/2);
+ else
+ return (int)(h/2);
+ }
+ default:
+ return -1;
}
- return success;
- }
- break;
}
- case wxSizerNone:
+ switch (which)
{
- // Layout children
- DoPhase(1);
- DoPhase(2);
-
- // Is this a dumb fix for lack of constraint evaluation?
- wxLayoutConstraints *constr = GetConstraints();
- if (constr)
- {
- bool success = constr->SatisfyConstraints(this, noChanges);
- if (success)
- {
- int x = constr->left.GetValue();
- int y = constr->top.GetValue();
- int w = constr->width.GetValue();
- int h = constr->height.GetValue();
- SetSize(x, y, w, h);
- }
- return success;
- }
- else
- return TRUE;
+ case wxLeft:
+ {
+ wxLayoutConstraints *constr = other->GetConstraints();
+ // If no constraints, it means the window is not dependent
+ // on anything, and therefore we know its value immediately
+ if (constr)
+ {
+ if (constr->left.GetDone())
+ return constr->left.GetValue();
+ else
+ return -1;
+ }
+ else
+ {
+ int x, y;
+ other->GetPosition(&x, &y);
+ return x;
+ }
+ }
+ case wxTop:
+ {
+ wxLayoutConstraints *constr = other->GetConstraints();
+ // If no constraints, it means the window is not dependent
+ // on anything, and therefore we know its value immediately
+ if (constr)
+ {
+ if (constr->top.GetDone())
+ return constr->top.GetValue();
+ else
+ return -1;
+ }
+ else
+ {
+ int x, y;
+ other->GetPosition(&x, &y);
+ return y;
+ }
+ }
+ case wxRight:
+ {
+ wxLayoutConstraints *constr = other->GetConstraints();
+ // If no constraints, it means the window is not dependent
+ // on anything, and therefore we know its value immediately
+ if (constr)
+ {
+ if (constr->right.GetDone())
+ return constr->right.GetValue();
+ else
+ return -1;
+ }
+ else
+ {
+ int x, y, w, h;
+ other->GetPosition(&x, &y);
+ other->GetSize(&w, &h);
+ return (int)(x + w);
+ }
+ }
+ case wxBottom:
+ {
+ wxLayoutConstraints *constr = other->GetConstraints();
+ // If no constraints, it means the window is not dependent
+ // on anything, and therefore we know its value immediately
+ if (constr)
+ {
+ if (constr->bottom.GetDone())
+ return constr->bottom.GetValue();
+ else
+ return -1;
+ }
+ else
+ {
+ int x, y, w, h;
+ other->GetPosition(&x, &y);
+ other->GetSize(&w, &h);
+ return (int)(y + h);
+ }
+ }
+ case wxWidth:
+ {
+ wxLayoutConstraints *constr = other->GetConstraints();
+ // If no constraints, it means the window is not dependent
+ // on anything, and therefore we know its value immediately
+ if (constr)
+ {
+ if (constr->width.GetDone())
+ return constr->width.GetValue();
+ else
+ return -1;
+ }
+ else
+ {
+ int w, h;
+ other->GetSize(&w, &h);
+ return w;
+ }
+ }
+ case wxHeight:
+ {
+ wxLayoutConstraints *constr = other->GetConstraints();
+ // If no constraints, it means the window is not dependent
+ // on anything, and therefore we know its value immediately
+ if (constr)
+ {
+ if (constr->height.GetDone())
+ return constr->height.GetValue();
+ else
+ return -1;
+ }
+ else
+ {
+ int w, h;
+ other->GetSize(&w, &h);
+ return h;
+ }
+ }
+ case wxCentreX:
+ {
+ wxLayoutConstraints *constr = other->GetConstraints();
+ // If no constraints, it means the window is not dependent
+ // on anything, and therefore we know its value immediately
+ if (constr)
+ {
+ if (constr->centreX.GetDone())
+ return constr->centreX.GetValue();
+ else
+ return -1;
+ }
+ else
+ {
+ int x, y, w, h;
+ other->GetPosition(&x, &y);
+ other->GetSize(&w, &h);
+ return (int)(x + (w/2));
+ }
+ }
+ case wxCentreY:
+ {
+ wxLayoutConstraints *constr = other->GetConstraints();
+ // If no constraints, it means the window is not dependent
+ // on anything, and therefore we know its value immediately
+ if (constr)
+ {
+ if (constr->centreY.GetDone())
+ return constr->centreY.GetValue();
+ else
+ return -1;
+ }
+ else
+ {
+ int x, y, w, h;
+ other->GetPosition(&x, &y);
+ other->GetSize(&w, &h);
+ return (int)(y + (h/2));
+ }
+ }
+ default:
+ break;
}
- }
- return TRUE;
-}
-
-/*
- * wxRowColSizer
- */
-
-wxRowColSizer::wxRowColSizer()
-{
- rowOrCol = TRUE;
- rowOrColSize = 20;
- xSpacing = 2;
- ySpacing = 2;
-}
-
-wxRowColSizer::wxRowColSizer(wxWindow *parent, bool rc, int n, wxSizerBehaviour behav)
-{
- Create(parent, rc, n, behav);
-}
-
-bool wxRowColSizer::Create(wxWindow *parent, bool rc, int n, wxSizerBehaviour behav)
-{
- wxSizer::Create(parent, behav);
-
- rowOrCol = rc;
- rowOrColSize = n;
- xSpacing = 2;
- ySpacing = 2;
-
- return TRUE;
+ return -1;
}
-wxRowColSizer::~wxRowColSizer()
+wxLayoutConstraints::wxLayoutConstraints()
{
+ left.SetEdge(wxLeft);
+ top.SetEdge(wxTop);
+ right.SetEdge(wxRight);
+ bottom.SetEdge(wxBottom);
+ centreX.SetEdge(wxCentreX);
+ centreY.SetEdge(wxCentreY);
+ width.SetEdge(wxWidth);
+ height.SetEdge(wxHeight);
}
-bool wxRowColSizer::LayoutPhase1(int *noChanges)
+bool wxLayoutConstraints::SatisfyConstraints(wxWindowBase *win, int *nChanges)
{
- *noChanges = 0;
- wxLayoutConstraints *constr = GetConstraints();
+ int noChanges = 0;
- if (constr)
- {
- // Force the constraint to have as-is width and height
- // if we're in shrink-to-fit mode, because if left unconstrained,
- // SatisfyConstraints will fail. The shrink-to-fit option
- // essentially specifies the width and height as 'whatever I calculate'.
- if (sizerBehaviour == wxSizerShrink)
- {
- constr->width.AsIs();
- constr->height.AsIs();
- }
+ bool done = width.GetDone();
+ bool newDone = (done ? true : width.SatisfyConstraint(this, win));
+ if (newDone != done)
+ noChanges ++;
- // Only evaluate the constraints FIRST if we're NOT
- // in shrink-to-fit mode, i.e. we want to size the rowcol
- // first, then lay the children out in the space we've calculated.
- if (sizerBehaviour != wxSizerShrink)
- {
- bool success = constr->SatisfyConstraints(this, noChanges);
- if (success)
- {
- int x = constr->left.GetValue();
- int y = constr->top.GetValue();
- int w = constr->width.GetValue();
- int h = constr->height.GetValue();
- SetSize(x, y, w, h);
- }
- else
- return FALSE;
+ done = height.GetDone();
+ newDone = (done ? true : height.SatisfyConstraint(this, win));
+ if (newDone != done)
+ noChanges ++;
- // Continue to do the rest of the phase when the constraints have been
- // satisfied, i.e. we're on the last iteration of phase 1 and
- // can now do the actual rowcol laying out.
- }
- }
+ done = left.GetDone();
+ newDone = (done ? true : left.SatisfyConstraint(this, win));
+ if (newDone != done)
+ noChanges ++;
- // If we ARE in shrink-to-fit mode, we must now
- // calculate the child sizes BEFORE laying out in rows or columns.
- if (sizerBehaviour == wxSizerShrink)
- {
- DoPhase(1);
- DoPhase(2);
+ done = top.GetDone();
+ newDone = (done ? true : top.SatisfyConstraint(this, win));
+ if (newDone != done)
+ noChanges ++;
- // WILL THE WINDOW BE SIZED CORRECTLY AT THIS POINT?
- // CHECK CONSTRAINTS IF ANY...
- int noRows = 0;
- int noCols = 0;
- int currentX = borderX;
- int currentY = borderY;
- int maxX = currentX;
- int maxY = currentY;
+ done = right.GetDone();
+ newDone = (done ? true : right.SatisfyConstraint(this, win));
+ if (newDone != done)
+ noChanges ++;
- wxNode *node = GetChildren().First();
- while (node)
- {
- wxWindow *win = (wxWindow *)node->Data();
- int childWidth, childHeight;
- if (win->GetConstraints() &&
- win->GetConstraints()->width.GetDone() &&
- win->GetConstraints()->height.GetDone())
- {
- childWidth = win->GetConstraints()->width.GetValue();
- childHeight = win->GetConstraints()->height.GetValue();
- }
- else
- win->GetSize(&childWidth, &childHeight);
+ done = bottom.GetDone();
+ newDone = (done ? true : bottom.SatisfyConstraint(this, win));
+ if (newDone != done)
+ noChanges ++;
- win->MoveConstraint(currentX, currentY);
+ done = centreX.GetDone();
+ newDone = (done ? true : centreX.SatisfyConstraint(this, win));
+ if (newDone != done)
+ noChanges ++;
- if ((currentX + childWidth) > maxX)
- maxX = (currentX + childWidth);
- if ((currentY + childHeight) > maxY)
- maxY = (currentY + childHeight);
+ done = centreY.GetDone();
+ newDone = (done ? true : centreY.SatisfyConstraint(this, win));
+ if (newDone != done)
+ noChanges ++;
- if (rowOrCol)
- {
- currentX += childWidth + xSpacing;
- noCols ++;
+ *nChanges = noChanges;
- // Reset to start of row
- if (noCols == rowOrColSize)
- {
- currentX = borderX;
- currentY += childHeight + ySpacing;
- noCols = 0;
- }
- }
- else
- {
- currentY += childHeight + ySpacing;
- noRows ++;
-
- // Reset to start of col
- if (noRows == rowOrColSize)
- {
- currentY = borderY;
- currentX += childWidth + xSpacing;
- noRows = 0;
- }
- }
-
- node = node->Next();
- }
- maxX += borderX;
- maxY += borderY;
-
- SetSize(-1, -1, maxX, maxY);
- }
- return TRUE;
-}
-
-bool wxRowColSizer::LayoutPhase2(int *noChanges)
-{
- *noChanges = 0;
-
- // If shrink-to-fit, it's only at Phase 2 that we know the size of
- // the wxRowColSizer, and now we can evaluate the
- // constraints and pass result back up to parent.
- // This implements a depth-first strategy
- if (sizerBehaviour == wxSizerShrink)
- {
- wxLayoutConstraints *constr = GetConstraints();
- if (constr)
- {
- bool success = constr->SatisfyConstraints(this, noChanges);
- if (success)
- {
- int x = constr->left.GetValue();
- int y = constr->top.GetValue();
- Move(x, y);
- }
- return success;
- }
- else return TRUE;
- }
- else
- {
- // Lay out the children: breadth-first strategy.
- DoPhase(1);
- DoPhase(2);
-
- // Space them
- }
- return TRUE;
-}
-
-
-/*
- * wxSpacingSizer
- */
-
-wxSpacingSizer::wxSpacingSizer()
-{
-}
-
-wxSpacingSizer::wxSpacingSizer(wxWindow *parent)
-{
- Create(parent);
-}
-
-wxSpacingSizer::wxSpacingSizer(wxWindow *parent, wxRelationship rel, wxWindow *other, int spacing)
-{
- Create(parent, rel, other, spacing);
-}
-
-bool wxSpacingSizer::Create(wxWindow *parent)
-{
- wxSizer::Create(parent);
- return TRUE;
-}
-
-bool wxSpacingSizer::Create(wxWindow *parent, wxRelationship rel, wxWindow *other, int spacing)
-{
- wxLayoutConstraints *c = new wxLayoutConstraints;
-
- wxSizer::Create(parent);
-
- switch ( rel )
- {
- case wxLeftOf :
- c->width.Absolute (spacing);
- c->top.SameAs (other, wxTop);
- c->bottom.SameAs (other, wxBottom);
- c->right.LeftOf (other);
- break;
- case wxRightOf :
- c->width.Absolute (spacing);
- c->top.SameAs (other, wxTop);
- c->bottom.SameAs (other, wxBottom);
- c->left.RightOf (other);
- break;
- case wxBelow :
- c->height.Absolute (spacing);
- c->left.SameAs (other, wxLeft);
- c->right.SameAs (other, wxRight);
- c->top.Below (other);
- break;
- case wxAbove :
- c->height.Absolute (spacing);
- c->left.SameAs (other, wxLeft);
- c->right.SameAs (other, wxRight);
- c->bottom.Above (other);
- break;
-
- default :
- break;
- }
- SetConstraints(c);
-
- return TRUE;
-}
-
-wxSpacingSizer::~wxSpacingSizer()
-{
+ return AreSatisfied();
}
+#endif // wxUSE_CONSTRAINTS
projects / wxWidgets.git / blobdiff