{
public:
// ctors & dtor
- wxGenericTreeItem() { m_data = NULL; }
+ wxGenericTreeItem()
+ {
+ m_data = NULL;
+ m_widthText =
+ m_heightText = -1;
+ }
+
wxGenericTreeItem( wxGenericTreeItem *parent,
const wxString& text,
int image,
// selected/expanded/whatever state)
int GetCurrentImage() const;
- void SetText( const wxString &text ) { m_text = text; }
- void SetImage(int image, wxTreeItemIcon which) { m_images[which] = image; }
+ void SetText(const wxString& text)
+ {
+ m_text = text;
+
+ ResetTextSize();
+ }
+
+ void SetImage(int image, wxTreeItemIcon which)
+ {
+ m_images[which] = image;
+ m_width = 0;
+ }
+
void SetData(wxTreeItemData *data) { m_data = data; }
- void SetState(int state) { m_state = state; }
+ void SetState(int state) { m_state = state; m_width = 0; }
void SetHasPlus(bool has = true) { m_hasPlus = has; }
- void SetBold(bool bold) { m_isBold = bold; }
+ void SetBold(bool bold)
+ {
+ m_isBold = bold;
+
+ ResetTextSize();
+ }
int GetX() const { return m_x; }
int GetY() const { return m_y; }
void SetX(int x) { m_x = x; }
void SetY(int y) { m_y = y; }
- int GetHeight() const { return m_height; }
- int GetWidth() const { return m_width; }
+ int GetHeight() const { return m_height; }
+ int GetWidth() const { return m_width; }
+
+ int GetTextHeight() const
+ {
+ wxASSERT_MSG( m_heightText != -1, "must call CalculateSize() first" );
+
+ return m_heightText;
+ }
+
+ int GetTextWidth() const
+ {
+ wxASSERT_MSG( m_widthText != -1, "must call CalculateSize() first" );
- void SetHeight(int h) { m_height = h; }
- void SetWidth(int w) { m_width = w; }
+ return m_widthText;
+ }
wxGenericTreeItem *GetParent() const { return m_parent; }
+ // sets the items font for the specified DC if it uses any special font or
+ // simply returns false otherwise
+ bool SetFont(wxGenericTreeCtrl *control, wxDC& dc) const
+ {
+ wxFont font;
+
+ wxTreeItemAttr * const attr = GetAttributes();
+ if ( attr && attr->HasFont() )
+ font = attr->GetFont();
+ else if ( IsBold() )
+ font = control->m_boldFont;
+ else
+ return false;
+
+ dc.SetFont(font);
+ return true;
+ }
+
// operations
// deletes all children notifying the treectrl about it
void Insert(wxGenericTreeItem *child, size_t index)
{ m_children.Insert(child, index); }
+ // calculate and cache the item size using either the provided DC (which is
+ // supposed to have wxGenericTreeCtrl::m_normalFont selected into it!) or a
+ // wxClientDC on the control window
+ void CalculateSize(wxGenericTreeCtrl *control, wxDC& dc)
+ { DoCalculateSize(control, dc, true /* dc uses normal font */); }
+ void CalculateSize(wxGenericTreeCtrl *control);
+
void GetSize( int &x, int &y, const wxGenericTreeCtrl* );
+ void ResetSize() { m_width = 0; }
+ void ResetTextSize() { m_width = 0; m_widthText = -1; }
+ void RecursiveResetSize();
+ void RecursiveResetTextSize();
+
// return the item at given position (or NULL if no item), onButton is
// true if the point belongs to the item's button, otherwise it lies
// on the item's label
if ( m_ownsAttr ) delete m_attr;
m_attr = attr;
m_ownsAttr = false;
+ m_width = 0;
+ m_widthText = -1;
}
// set them and delete when done
void AssignAttributes(wxTreeItemAttr *attr)
{
SetAttributes(attr);
m_ownsAttr = true;
+ m_width = 0;
+ m_widthText = -1;
}
private:
+ // calculate the size of this item, i.e. set m_width, m_height and
+ // m_widthText and m_heightText properly
+ //
+ // if dcUsesNormalFont is true, the current dc font must be the normal tree
+ // control font
+ void DoCalculateSize(wxGenericTreeCtrl *control,
+ wxDC& dc,
+ bool dcUsesNormalFont);
+
// since there can be very many of these, we save size by chosing
// the smallest representation for the elements and by ordering
// the members to avoid padding.
wxString m_text; // label to be rendered for item
+ int m_widthText;
+ int m_heightText;
wxTreeItemData *m_data; // user-provided data
// We don't know the height here yet.
m_width = 0;
m_height = 0;
+
+ m_widthText = -1;
+ m_heightText = -1;
}
wxGenericTreeItem::~wxGenericTreeItem()
return image;
}
+void wxGenericTreeItem::CalculateSize(wxGenericTreeCtrl* control)
+{
+ // check if we need to do anything before creating the DC
+ if ( m_width != 0 )
+ return;
+
+ wxClientDC dc(control);
+ DoCalculateSize(control, dc, false /* normal font not used */);
+}
+
+void
+wxGenericTreeItem::DoCalculateSize(wxGenericTreeCtrl* control,
+ wxDC& dc,
+ bool dcUsesNormalFont)
+{
+ if ( m_width != 0 ) // Size known, nothing to do
+ return;
+
+ if ( m_widthText == -1 )
+ {
+ bool fontChanged;
+ if ( SetFont(control, dc) )
+ {
+ fontChanged = true;
+ }
+ else // we have no special font
+ {
+ if ( !dcUsesNormalFont )
+ {
+ // but we do need to ensure that the normal font is used: notice
+ // that this doesn't count as changing the font as we don't need
+ // to restore it
+ dc.SetFont(control->m_normalFont);
+ }
+
+ fontChanged = false;
+ }
+
+ dc.GetTextExtent( GetText(), &m_widthText, &m_heightText );
+
+ // restore normal font if the DC used it previously and we changed it
+ if ( fontChanged )
+ dc.SetFont(control->m_normalFont);
+ }
+
+ int text_h = m_heightText + 2;
+
+ int image_h = 0;
+ int image_w = 0;
+ int image = GetCurrentImage();
+ if ( image != NO_IMAGE )
+ {
+ if ( control->m_imageListNormal )
+ {
+ control->m_imageListNormal->GetSize( image, image_w, image_h );
+ image_w += MARGIN_BETWEEN_IMAGE_AND_TEXT;
+ }
+ }
+
+ int state_h = 0, state_w = 0;
+ int state = GetState();
+ if ( state != wxTREE_ITEMSTATE_NONE )
+ {
+ if ( control->m_imageListState )
+ {
+ control->m_imageListState->GetSize( state, state_w, state_h );
+ if ( image != NO_IMAGE )
+ state_w += MARGIN_BETWEEN_STATE_AND_IMAGE;
+ else
+ state_w += MARGIN_BETWEEN_IMAGE_AND_TEXT;
+ }
+ else
+ {
+ state = wxTREE_ITEMSTATE_NONE;
+ }
+ }
+
+ m_height = (image_h > text_h) ? image_h : text_h;
+
+ if (m_height < 30)
+ m_height += 2; // at least 2 pixels
+ else
+ m_height += m_height / 10; // otherwise 10% extra spacing
+
+ if (m_height > control->m_lineHeight)
+ control->m_lineHeight = m_height;
+
+ m_width = state_w + image_w + m_widthText + 2;
+}
+
+void wxGenericTreeItem::RecursiveResetSize()
+{
+ m_width = 0;
+
+ const size_t count = m_children.Count();
+ for (size_t i = 0; i < count; i++ )
+ m_children[i]->RecursiveResetSize();
+}
+
+void wxGenericTreeItem::RecursiveResetTextSize()
+{
+ m_width = 0;
+ m_widthText = -1;
+
+ const size_t count = m_children.Count();
+ for (size_t i = 0; i < count; i++ )
+ m_children[i]->RecursiveResetTextSize();
+}
+
// -----------------------------------------------------------------------------
// wxGenericTreeCtrl implementation
// -----------------------------------------------------------------------------
m_lastOnSame = false;
-#if defined( __WXMAC__ )
+#if defined( __WXMAC__ )
#if wxOSX_USE_CARBON
m_normalFont.MacCreateFromThemeFont( kThemeViewsFont ) ;
#else
{
wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );
- wxClientDC dc(this);
wxGenericTreeItem *pItem = (wxGenericTreeItem*) item.m_pItem;
pItem->SetText(text);
- CalculateSize(pItem, dc);
+ pItem->CalculateSize(this);
RefreshLine(pItem);
}
wxGenericTreeItem *pItem = (wxGenericTreeItem*) item.m_pItem;
pItem->SetImage(image, which);
-
- wxClientDC dc(this);
- CalculateSize(pItem, dc);
+ pItem->CalculateSize(this);
RefreshLine(pItem);
}
wxGenericTreeItem *pItem = (wxGenericTreeItem*) item.m_pItem;
pItem->SetState(state);
+ pItem->CalculateSize(this);
RefreshLine(pItem);
}
// recalculate the item size as bold and non bold fonts have different
// widths
- wxClientDC dc(this);
- CalculateSize(pItem, dc);
-
+ pItem->CalculateSize(this);
RefreshLine(pItem);
}
}
wxGenericTreeItem *pItem = (wxGenericTreeItem*) item.m_pItem;
pItem->Attr().SetFont(font);
+ pItem->ResetTextSize();
+ pItem->CalculateSize(this);
RefreshLine(pItem);
}
m_normalFont.GetFaceName(),
m_normalFont.GetEncoding());
+ if (m_anchor)
+ m_anchor->RecursiveResetTextSize();
+
return true;
}
m_imageListNormal = imageList;
m_ownsImageListNormal = false;
m_dirty = true;
+
+ if (m_anchor)
+ m_anchor->RecursiveResetSize();
+
// Don't do any drawing if we're setting the list to NULL,
// since we may be in the process of deleting the tree control.
if (imageList)
m_imageListState = imageList;
m_ownsImageListState = false;
m_dirty = true;
+
+ if (m_anchor)
+ m_anchor->RecursiveResetSize();
+
// Don't do any drawing if we're setting the list to NULL,
// since we may be in the process of deleting the tree control.
if (imageList)
m_imageListButtons = imageList;
m_ownsImageListButtons = false;
m_dirty = true;
+
+ if (m_anchor)
+ m_anchor->RecursiveResetSize();
+
CalculateLineHeight();
}
void wxGenericTreeCtrl::PaintItem(wxGenericTreeItem *item, wxDC& dc)
{
- wxTreeItemAttr *attr = item->GetAttributes();
- if ( attr && attr->HasFont() )
- dc.SetFont(attr->GetFont());
- else if (item->IsBold())
- dc.SetFont(m_boldFont);
+ item->SetFont(this, dc);
- wxCoord text_w = 0, text_h = 0;
- dc.GetTextExtent( item->GetText(), &text_w, &text_h );
+ wxCoord text_h = item->GetTextHeight();
int image_h = 0, image_w = 0;
int image = item->GetCurrentImage();
}
int total_h = GetLineHeight(item);
- bool drawItemBackground = false;
+ bool drawItemBackground = false,
+ hasBgColour = false;
if ( item->IsSelected() )
{
else
{
wxColour colBg;
+ wxTreeItemAttr * const attr = item->GetAttributes();
if ( attr && attr->HasBackgroundColour() )
{
- drawItemBackground = true;
+ drawItemBackground =
+ hasBgColour = true;
colBg = attr->GetBackgroundColour();
}
else
#if !defined(__WXGTK20__) && !defined(__WXMAC__)
dc.DrawRectangle( rect );
#else
- if ( attr && attr->HasBackgroundColour() )
+ if ( hasBgColour )
{
dc.DrawRectangle( rect );
}
dc.DrawLine( x, y, x + i->GetWidth(), y);
}
-void wxGenericTreeCtrl::CalculateSize( wxGenericTreeItem *item, wxDC &dc )
-{
- wxCoord text_w = 0;
- wxCoord text_h = 0;
-
- wxTreeItemAttr *attr = item->GetAttributes();
- if ( attr && attr->HasFont() )
- dc.SetFont(attr->GetFont());
- else if ( item->IsBold() )
- dc.SetFont(m_boldFont);
- else
- dc.SetFont(m_normalFont);
-
- dc.GetTextExtent( item->GetText(), &text_w, &text_h );
- text_h+=2;
-
- // restore normal font
- dc.SetFont( m_normalFont );
-
- int image_h = 0;
- int image_w = 0;
- int image = item->GetCurrentImage();
- if ( image != NO_IMAGE )
- {
- if ( m_imageListNormal )
- {
- m_imageListNormal->GetSize( image, image_w, image_h );
- image_w += MARGIN_BETWEEN_IMAGE_AND_TEXT;
- }
- }
-
- int state_h = 0, state_w = 0;
- int state = item->GetState();
- if ( state != wxTREE_ITEMSTATE_NONE )
- {
- if ( m_imageListState )
- {
- m_imageListState->GetSize( state, state_w, state_h );
- if ( image != NO_IMAGE )
- state_w += MARGIN_BETWEEN_STATE_AND_IMAGE;
- else
- state_w += MARGIN_BETWEEN_IMAGE_AND_TEXT;
- }
- else
- {
- state = wxTREE_ITEMSTATE_NONE;
- }
- }
-
- int total_h = (image_h > text_h) ? image_h : text_h;
-
- if (total_h < 30)
- total_h += 2; // at least 2 pixels
- else
- total_h += total_h/10; // otherwise 10% extra spacing
-
- item->SetHeight(total_h);
- if (total_h>m_lineHeight)
- m_lineHeight=total_h;
-
- item->SetWidth(state_w + image_w + text_w + 2);
-}
-
// -----------------------------------------------------------------------------
// wxWidgets callbacks
// -----------------------------------------------------------------------------
goto Recurse;
}
- CalculateSize( item, dc );
+ item->CalculateSize(this, dc);
// set its position
item->SetX( x+m_spacing );
projects / wxWidgets.git / commitdiff
