FButton now uses the widget flags directly

This commit is contained in:
Markus Gans 2018-11-05 23:19:03 +01:00
parent f7a75247ef
commit baabf9546e
12 changed files with 101 additions and 120 deletions

View File

@ -1,3 +1,6 @@
2018-11-05 Markus Gans <guru.mail@muenster.de>
* FButton now uses the widget flags directly
2018-11-04 Markus Gans <guru.mail@muenster.de>
* Widget flags are now stored in a bit field

View File

@ -285,7 +285,7 @@ Window::Window (finalcut::FWidget* parent)
for (int n = 1; n <= 6; n++)
{
win_data* win_dat = new win_data;
win_dat->title.sprintf("Window %d", n);
win_dat->title.sprintf("Window %1d", n);
windows.push_back(win_dat);
}
}

View File

@ -37,6 +37,7 @@ FButton::FButton(FWidget* parent)
: FWidget(parent)
, text()
, button_down(false)
, active_focus(false)
, click_animation(true)
, click_time(150)
, space_char(int(' '))
@ -52,7 +53,6 @@ FButton::FButton(FWidget* parent)
, button_focus_bg(wc.button_active_focus_bg)
, button_inactive_fg(wc.button_inactive_fg)
, button_inactive_bg(wc.button_inactive_bg)
, is()
{
init();
}
@ -62,6 +62,7 @@ FButton::FButton (const FString& txt, FWidget* parent)
: FWidget(parent)
, text(txt)
, button_down(false)
, active_focus(false)
, click_animation(true)
, click_time(150)
, space_char(int(' '))
@ -77,7 +78,6 @@ FButton::FButton (const FString& txt, FWidget* parent)
, button_focus_bg(wc.button_active_focus_bg)
, button_inactive_fg(wc.button_inactive_fg)
, button_inactive_bg(wc.button_inactive_bg)
, is()
{
init();
detectHotkey();
@ -453,17 +453,6 @@ void FButton::init()
setShadow();
}
//----------------------------------------------------------------------
void FButton::getButtonState()
{
is.active_focus = flags.active && flags.focus;
is.active = flags.active;
is.focus = flags.focus;
is.flat = isFlat();
is.non_flat_shadow = ! flags.flat && flags.shadow;
is.no_underline = flags.no_underline;
}
//----------------------------------------------------------------------
uChar FButton::getHotkey()
{
@ -551,7 +540,7 @@ inline std::size_t FButton::clickAnimationIndent (FWidget* parent_widget)
return 0;
// noshadow + indent one character to the right
if ( is.flat )
if ( flags.flat )
clearFlatBorder();
else if ( hasShadow() )
clearShadow();
@ -588,7 +577,7 @@ inline void FButton::clearRightMargin (FWidget* parent_widget)
setPrintPos (1 + int(getWidth()), y);
print (' '); // clear right
if ( is.active && isMonochron() )
if ( flags.active && isMonochron() )
setReverse(false); // Dark background
}
}
@ -604,7 +593,7 @@ inline void FButton::drawMarginLeft()
{
setPrintPos (1 + int(indent), 1 + int(y));
if ( isMonochron() && is.active_focus && y == vcenter_offset )
if ( isMonochron() && active_focus && y == vcenter_offset )
print (fc::BlackRightPointingPointer); // ►
else
print (space_char); // full block █
@ -620,7 +609,7 @@ inline void FButton::drawMarginRight()
{
setPrintPos (int(getWidth() + indent), 1 + int(y));
if ( isMonochron() && is.active_focus && y == vcenter_offset )
if ( isMonochron() && active_focus && y == vcenter_offset )
print (fc::BlackLeftPointingPointer); // ◄
else
print (space_char); // full block █
@ -675,32 +664,32 @@ inline void FButton::drawButtonTextLine (wchar_t button_text[])
setCursorPos ( 2 + int(center_offset + hotkeypos)
, 1 + int(vcenter_offset) ); // hotkey
if ( ! is.active && isMonochron() )
if ( ! flags.active && isMonochron() )
setReverse(true); // Light background
if ( is.active_focus && (isMonochron() || getMaxColor() < 16) )
if ( active_focus && (isMonochron() || getMaxColor() < 16) )
setBold();
for ( std::size_t z = 0
; pos < center_offset + txtlength && z < getWidth() - 2
; z++, pos++)
{
if ( z == hotkeypos && is.active )
if ( z == hotkeypos && flags.active )
{
setColor (button_hotkey_fg, button_bg);
if ( ! is.active_focus && getMaxColor() < 16 )
if ( ! active_focus && getMaxColor() < 16 )
setBold();
if ( ! is.no_underline )
if ( ! flags.no_underline )
setUnderline();
print (button_text[z]);
if ( ! is.active_focus && getMaxColor() < 16 )
if ( ! active_focus && getMaxColor() < 16 )
unsetBold();
if ( ! is.no_underline )
if ( ! flags.no_underline )
unsetUnderline();
setColor (button_fg, button_bg);
@ -718,7 +707,7 @@ inline void FButton::drawButtonTextLine (wchar_t button_text[])
print (L"..");
}
if ( is.active_focus && (isMonochron() || getMaxColor() < 16) )
if ( active_focus && (isMonochron() || getMaxColor() < 16) )
unsetBold();
for (pos = center_offset + txtlength; pos < getWidth() - 2; pos++)
@ -732,7 +721,7 @@ void FButton::draw()
FWidget* parent_widget = getParentWidget();
txtlength = text.getLength();
space_char = int(' ');
getButtonState();
active_focus = flags.active && flags.focus;
try
{
@ -753,13 +742,13 @@ void FButton::draw()
// Clear right margin after animation
clearRightMargin (parent_widget);
if ( ! is.active && isMonochron() )
if ( ! flags.active && isMonochron() )
space_char = fc::MediumShade; // ▒ simulates greyed out at Monochron
if ( isMonochron() && (is.active || is.focus) )
if ( isMonochron() && (flags.active || flags.focus) )
setReverse(false); // Dark background
if ( is.flat && ! button_down )
if ( flags.flat && ! button_down )
drawFlatBorder();
hotkeypos = getHotkeyPos(text.wc_str(), button_text, uInt(txtlength));
@ -785,7 +774,7 @@ void FButton::draw()
drawTopBottomBackground();
// Draw button shadow
if ( is.non_flat_shadow && ! button_down )
if ( ! flags.flat && flags.shadow && ! button_down )
drawShadow();
if ( isMonochron() )
@ -798,7 +787,7 @@ void FButton::draw()
//----------------------------------------------------------------------
void FButton::updateStatusBar()
{
if ( ! is.focus || ! getStatusBar() )
if ( ! flags.focus || ! getStatusBar() )
return;
const FString& msg = getStatusbarMessage();

View File

@ -288,13 +288,13 @@ void FScrollView::setPrintPos (int x, int y)
//----------------------------------------------------------------------
bool FScrollView::setViewportPrint (bool on)
{
return use_own_print_area = ! on;
return (use_own_print_area = ! on);
}
//----------------------------------------------------------------------
bool FScrollView::setBorder (bool on)
{
return border = on;
return (border = on);
}
//----------------------------------------------------------------------

View File

@ -99,7 +99,7 @@ bool FStatusKey::setMouseFocus(bool on)
if ( on == mouse_focus )
return true;
return mouse_focus = on;
return (mouse_focus = on);
}

View File

@ -858,7 +858,7 @@ void FVTerm::restoreVTerm (int x, int y, int w, int h)
int xpos = x + tx;
tc = &vterm->text[ypos * vterm->width + xpos];
sc = generateCharacter(xpos, ypos);
std::memcpy (tc, &sc, sizeof(charData));
std::memcpy (tc, &sc, sizeof(sc));
}
if ( short(vterm->changes[ypos].xmin) > x )
@ -959,7 +959,7 @@ void FVTerm::updateOverlappedColor ( term_area* area
charData* tc = &vterm->text[ty * vterm->width + tx];
// New character
charData nc;
std::memcpy (&nc, ac, sizeof(charData));
std::memcpy (&nc, ac, sizeof(*ac));
// Overlapped character
charData oc = getOverlappedCharacter (tx + 1, ty + 1, area->widget);
nc.fg_color = oc.fg_color;
@ -976,7 +976,7 @@ void FVTerm::updateOverlappedColor ( term_area* area
nc.code = ' ';
nc.attr.bit.no_changes = bool(tc->attr.bit.printed && *tc == nc);
std::memcpy (tc, &nc, sizeof(charData));
std::memcpy (tc, &nc, sizeof(nc));
}
//----------------------------------------------------------------------
@ -989,7 +989,7 @@ void FVTerm::updateOverlappedCharacter (term_area* area, int tx, int ty)
// Overlapped character
charData oc = getCoveredCharacter (tx + 1, ty + 1, area->widget);
oc.attr.bit.no_changes = bool(tc->attr.bit.printed && *tc == oc);
std::memcpy (tc, &oc, sizeof(charData));
std::memcpy (tc, &oc, sizeof(oc));
}
//----------------------------------------------------------------------
@ -1021,7 +1021,7 @@ void FVTerm::updateShadedCharacter ( term_area* area
oc.code = ' ';
oc.attr.bit.no_changes = bool(tc->attr.bit.printed && *tc == oc);
std::memcpy (tc, &oc, sizeof(charData));
std::memcpy (tc, &oc, sizeof(oc));
}
//----------------------------------------------------------------------
@ -1039,12 +1039,12 @@ void FVTerm::updateInheritBackground ( term_area* area
charData* tc = &vterm->text[ty * vterm->width + tx];
// New character
charData nc;
std::memcpy (&nc, ac, sizeof(charData));
std::memcpy (&nc, ac, sizeof(*ac));
// Covered character
charData cc = getCoveredCharacter (tx + 1, ty + 1, area->widget);
nc.bg_color = cc.bg_color;
nc.attr.bit.no_changes = bool(tc->attr.bit.printed && *tc == nc);
std::memcpy (tc, &nc, sizeof(charData));
std::memcpy (tc, &nc, sizeof(nc));
}
//----------------------------------------------------------------------
@ -1060,7 +1060,7 @@ void FVTerm::updateCharacter ( term_area* area
charData* ac = &area->text[y * line_len + x];
// Terminal character
charData* tc = &vterm->text[ty * vterm->width + tx];
std::memcpy (tc, ac, sizeof(charData));
std::memcpy (tc, ac, sizeof(*ac));
if ( tc->attr.bit.printed && *tc == *ac )
tc->attr.bit.no_changes = true;
@ -1388,7 +1388,7 @@ void FVTerm::getArea (int ax, int ay, term_area* area)
charData* ac; // area character
tc = &vterm->text[(ay + y) * vterm->width + ax];
ac = &area->text[y * area->width];
std::memcpy (ac, tc, sizeof(charData) * unsigned(length));
std::memcpy (ac, tc, sizeof(*tc) * unsigned(length));
if ( short(area->changes[y].xmin) > 0 )
area->changes[y].xmin = 0;
@ -1444,7 +1444,7 @@ void FVTerm::getArea (int x, int y, int w, int h, term_area* area)
int line_len = area->width + area->right_shadow;
tc = &vterm->text[(y + _y - 1) * vterm->width + x - 1];
ac = &area->text[(dy + _y) * line_len + dx];
std::memcpy (ac, tc, sizeof(charData) * unsigned(length));
std::memcpy (ac, tc, sizeof(*tc) * unsigned(length));
if ( short(area->changes[dy + _y].xmin) > dx )
area->changes[dy + _y].xmin = uInt(dx);
@ -1572,14 +1572,14 @@ void FVTerm::scrollAreaForward (term_area* area)
int pos2 = (y + 1) * total_width;
sc = &area->text[pos2];
dc = &area->text[pos1];
std::memcpy (dc, sc, sizeof(charData) * unsigned(length));
std::memcpy (dc, sc, sizeof(*sc) * unsigned(length));
area->changes[y].xmin = 0;
area->changes[y].xmax = uInt(area->width - 1);
}
// insert a new line below
lc = &area->text[(y_max * total_width) - area->right_shadow - 1];
std::memcpy (&nc, lc, sizeof(charData));
std::memcpy (&nc, lc, sizeof(*lc));
nc.code = ' ';
dc = &area->text[y_max * total_width];
std::fill_n (dc, area->width, nc);
@ -1633,14 +1633,14 @@ void FVTerm::scrollAreaReverse (term_area* area)
int pos2 = y * total_width;
sc = &area->text[pos1];
dc = &area->text[pos2];
std::memcpy (dc, sc, sizeof(charData) * unsigned(length));
std::memcpy (dc, sc, sizeof(*sc) * unsigned(length));
area->changes[y].xmin = 0;
area->changes[y].xmax = uInt(area->width - 1);
}
// insert a new line above
lc = &area->text[total_width];
std::memcpy (&nc, lc, sizeof(charData));
std::memcpy (&nc, lc, sizeof(*lc));
nc.code = ' ';
dc = &area->text[0];
std::fill_n (dc, area->width, nc);
@ -1675,7 +1675,7 @@ void FVTerm::clearArea (term_area* area, int fillchar)
uInt w;
// Current attributes with a space character
std::memcpy (&nc, &next_attribute, sizeof(charData));
std::memcpy (&nc, &next_attribute, sizeof(next_attribute));
nc.code = fillchar;
if ( ! (area && area->text) )
@ -1770,7 +1770,7 @@ FVTerm::charData FVTerm::generateCharacter (int x, int y)
if ( tmp->attr.bit.trans_shadow ) // Transparent shadow
{
// Keep the current vterm character
std::memcpy (&s_ch, sc, sizeof(charData));
std::memcpy (&s_ch, sc, sizeof(*sc));
s_ch.fg_color = tmp->fg_color;
s_ch.bg_color = tmp->bg_color;
s_ch.attr.bit.reverse = false;
@ -1789,7 +1789,7 @@ FVTerm::charData FVTerm::generateCharacter (int x, int y)
else if ( tmp->attr.bit.inherit_bg )
{
// Add the covered background to this character
std::memcpy (&i_ch, tmp, sizeof(charData));
std::memcpy (&i_ch, tmp, sizeof(*tmp));
i_ch.bg_color = sc->bg_color; // Last background color
sc = &i_ch;
}
@ -2007,7 +2007,7 @@ void FVTerm::init (bool disable_alt_screen)
term_attribute.attr.byte[0] = 0;
// next_attribute contains the state of the next printed character
std::memcpy (&next_attribute, &term_attribute, sizeof(charData));
std::memcpy (&next_attribute, &term_attribute, sizeof(term_attribute));
// Receive the terminal capabilities
tcap = FTermcap::getTermcapMap();
@ -2086,7 +2086,7 @@ void FVTerm::putAreaLine (charData* ac, charData* tc, int length)
{
// copy "length" characters from area to terminal
std::memcpy (tc, ac, sizeof(charData) * unsigned(length));
std::memcpy (tc, ac, sizeof(*ac) * unsigned(length));
}
//----------------------------------------------------------------------
@ -2099,7 +2099,7 @@ void FVTerm::putAreaCharacter ( int x, int y, FVTerm* obj
// Restore one character on vterm
charData ch;
ch = getCoveredCharacter (x, y, obj);
std::memcpy (tc, &ch, sizeof(charData));
std::memcpy (tc, &ch, sizeof(ch));
}
else // Mot transparent
{
@ -2121,19 +2121,19 @@ void FVTerm::putAreaCharacter ( int x, int y, FVTerm* obj
|| ch.code == fc::FullBlock )
ch.code = ' ';
std::memcpy (tc, &ch, sizeof(charData));
std::memcpy (tc, &ch, sizeof(ch));
}
else if ( ac->attr.bit.inherit_bg )
{
// Add the covered background to this character
charData ch, cc;
std::memcpy (&ch, ac, sizeof(charData));
std::memcpy (&ch, ac, sizeof(*ac));
cc = getCoveredCharacter (x, y, obj);
ch.bg_color = cc.bg_color;
std::memcpy (tc, &ch, sizeof(charData));
std::memcpy (tc, &ch, sizeof(ch));
}
else // Default
std::memcpy (tc, ac, sizeof(charData));
std::memcpy (tc, ac, sizeof(*ac));
}
}
@ -2153,7 +2153,7 @@ void FVTerm::getAreaCharacter ( int x, int y, term_area* area
if ( tmp->attr.bit.trans_shadow ) // transparent shadow
{
// Keep the current vterm character
std::memcpy (&s_ch, cc, sizeof(charData));
std::memcpy (&s_ch, cc, sizeof(*cc));
s_ch.fg_color = tmp->fg_color;
s_ch.bg_color = tmp->bg_color;
s_ch.attr.bit.reverse = false;
@ -2163,7 +2163,7 @@ void FVTerm::getAreaCharacter ( int x, int y, term_area* area
else if ( tmp->attr.bit.inherit_bg )
{
// Add the covered background to this character
std::memcpy (&i_ch, tmp, sizeof(charData));
std::memcpy (&i_ch, tmp, sizeof(*tmp));
i_ch.bg_color = cc->bg_color; // last background color
cc = &i_ch;
}

View File

@ -61,10 +61,6 @@ FWidget::FWidget (FWidget* parent, bool disable_alt_screen)
, flags()
, callback_objects()
, member_callback_objects()
, visible(true)
, shown(false)
, focusable(true)
, visible_cursor(true)
, widget_cursor_position(-1, -1)
, size_hints()
, double_flatline_mask()
@ -85,10 +81,11 @@ FWidget::FWidget (FWidget* parent, bool disable_alt_screen)
// init bit field with 0
memset (&flags, 0, sizeof(flags));
// Enable widget by default
flags.active = true;
widget_object = true;
flags.active = true; // Enable widget by default
flags.visible = true; // A widget is visible by default
flags.focusable = true; // A widget is focusable by default
flags.visible_cursor = true; // A widget has a visible cursor by default
widget_object = true; // This FObject is a widget
if ( ! parent )
{
@ -104,7 +101,7 @@ FWidget::FWidget (FWidget* parent, bool disable_alt_screen)
}
else
{
visible_cursor = ! hideable;
flags.visible_cursor = ! hideable;
offset = parent->client_offset;
double_flatline_mask.top.resize (getWidth(), false);
double_flatline_mask.right.resize (getHeight(), false);
@ -671,7 +668,7 @@ bool FWidget::setCursorPos (int x, int y)
setAreaCursor ( widget_offsetX + x
, widget_offsetY + y
, visible_cursor
, flags.visible_cursor
, area );
return true;
}
@ -1092,7 +1089,7 @@ void FWidget::show()
}
draw();
shown = true;
flags.shown = true;
if ( hasChildren() )
{
@ -1129,8 +1126,8 @@ void FWidget::hide()
{
if ( isVisible() )
{
visible = false;
shown = false;
flags.visible = false;
flags.shown = false;
if ( ! isDialogWidget()
&& FWidget::getFocusWidget() == this
@ -1966,7 +1963,7 @@ void FWidget::init()
}
hideable = isCursorHideable();
visible_cursor = ! hideable;
flags.visible_cursor = ! hideable;
// Determine width and height of the terminal
detectTermSize();

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@ -162,7 +162,7 @@ bool FWindow::activateWindow (bool on)
active_area = getVWin();
}
return window_active = on;
return (window_active = on);
}
//----------------------------------------------------------------------

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@ -141,7 +141,6 @@ class FButton : public FWidget
// Methods
void init();
void getButtonState();
uChar getHotkey();
void setHotkeyAccelerator();
void detectHotkey();
@ -160,6 +159,7 @@ class FButton : public FWidget
// Data Members
FString text;
bool button_down;
bool active_focus;
bool click_animation;
int click_time;
int space_char;
@ -175,17 +175,6 @@ class FButton : public FWidget
short button_focus_bg;
short button_inactive_fg;
short button_inactive_bg;
struct state
{
uChar focus : 1;
uChar active_focus : 1;
uChar active : 1;
uChar flat : 1;
uChar non_flat_shadow : 1;
uChar no_underline : 1;
uChar : 2; // padding bits
} is;
};
#pragma pack(pop)
@ -253,7 +242,7 @@ inline bool FButton::setUp()
//----------------------------------------------------------------------
inline bool FButton::setClickAnimation(bool on)
{ return click_animation = on; }
{ return (click_animation = on); }
//----------------------------------------------------------------------
inline bool FButton::setClickAnimation()

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@ -479,7 +479,7 @@ inline void FListView::setUserDescendingCompare (Compare cmp)
//----------------------------------------------------------------------
inline bool FListView::setTreeView (bool on)
{ return tree_view = on; }
{ return (tree_view = on); }
//----------------------------------------------------------------------
inline bool FListView::setTreeView()

View File

@ -197,7 +197,7 @@ inline void FMessageBox::setTitlebarText (const FString& txt)
//----------------------------------------------------------------------
inline bool FMessageBox::setCenterText(bool on)
{ return center_text = on; }
{ return (center_text = on); }
//----------------------------------------------------------------------
inline bool FMessageBox::setCenterText()

View File

@ -144,20 +144,24 @@ class FWidget : public FVTerm, public FObject
struct widget_flags // Properties of a widget ⚑
{
uInt32 shadow : 1;
uInt32 trans_shadow : 1;
uInt32 active : 1;
uInt32 focus : 1;
uInt32 scrollable : 1;
uInt32 resizeable : 1;
uInt32 modal : 1;
uInt32 window_widget : 1;
uInt32 dialog_widget : 1;
uInt32 menu_widget : 1;
uInt32 always_on_top : 1;
uInt32 flat : 1;
uInt32 no_underline : 1;
uInt32 : 19; // padding bits
uInt32 shadow : 1;
uInt32 trans_shadow : 1;
uInt32 active : 1;
uInt32 visible : 1;
uInt32 shown : 1;
uInt32 focus : 1;
uInt32 focusable : 1;
uInt32 scrollable : 1;
uInt32 resizeable : 1;
uInt32 modal : 1;
uInt32 visible_cursor : 1;
uInt32 window_widget : 1;
uInt32 dialog_widget : 1;
uInt32 menu_widget : 1;
uInt32 always_on_top : 1;
uInt32 flat : 1;
uInt32 no_underline : 1;
uInt32 : 15; // padding bits
};
// Constructor
@ -425,10 +429,6 @@ class FWidget : public FVTerm, public FObject
static void setColorTheme();
// Data Members
bool visible;
bool shown;
bool focusable;
bool visible_cursor;
FPoint widget_cursor_position;
struct widget_size_hints
@ -734,7 +734,7 @@ inline void FWidget::setStatusbarMessage (const FString& msg)
//----------------------------------------------------------------------
inline bool FWidget::setVisible()
{ return visible = true; }
{ return (flags.visible = true); }
//----------------------------------------------------------------------
inline bool FWidget::setEnable()
@ -750,7 +750,10 @@ inline bool FWidget::setDisable()
//----------------------------------------------------------------------
inline bool FWidget::setVisibleCursor (bool on)
{ return visible_cursor = ( on ) ? true : (( hideable ) ? false : true); }
{
flags.visible_cursor = ( on ) ? true : (( hideable ) ? false : true);
return flags.visible_cursor;
}
//----------------------------------------------------------------------
inline bool FWidget::setVisibleCursor()
@ -770,23 +773,23 @@ inline bool FWidget::unsetFocus()
//----------------------------------------------------------------------
inline void FWidget::setFocusable()
{ focusable = true; }
{ flags.focusable = true; }
//----------------------------------------------------------------------
inline void FWidget::unsetFocusable()
{ focusable = false; }
{ flags.focusable = false; }
//----------------------------------------------------------------------
inline bool FWidget::ignorePadding (bool on)
{ return ignore_padding = on; }
{ return (ignore_padding = on); }
//----------------------------------------------------------------------
inline bool FWidget::ignorePadding()
{ return ignore_padding = true; }
{ return (ignore_padding = true); }
//----------------------------------------------------------------------
inline bool FWidget::acceptPadding()
{ return ignore_padding = false; }
{ return (ignore_padding = false); }
//----------------------------------------------------------------------
inline void FWidget::setForegroundColor (short color)
@ -881,11 +884,11 @@ inline bool FWidget::isRootWidget() const
//----------------------------------------------------------------------
inline bool FWidget::isVisible() const
{ return visible; }
{ return flags.visible; }
//----------------------------------------------------------------------
inline bool FWidget::isShown() const
{ return shown; }
{ return flags.shown; }
//----------------------------------------------------------------------
inline bool FWidget::isWindowWidget() const
@ -905,7 +908,7 @@ inline bool FWidget::isEnabled() const
//----------------------------------------------------------------------
inline bool FWidget::hasVisibleCursor() const
{ return visible_cursor; }
{ return flags.visible_cursor; }
//----------------------------------------------------------------------
inline bool FWidget::hasFocus() const
@ -913,7 +916,7 @@ inline bool FWidget::hasFocus() const
//----------------------------------------------------------------------
inline bool FWidget::acceptFocus() const // is focusable
{ return focusable; }
{ return flags.focusable; }
//----------------------------------------------------------------------
inline bool FWidget::isPaddingIgnored()