bool RenderThemeGtk::paintSliderThumb(RenderObject* object, const PaintInfo& info, const IntRect& rect)
{
if (info.context->paintingDisabled())
return false;
ControlPart part = object->style()->appearance();
ASSERT(part == SliderThumbHorizontalPart || part == SliderThumbVerticalPart);
GtkWidget* widget = 0;
const char* detail = 0;
GtkOrientation orientation;
if (part == SliderThumbVerticalPart) {
widget = gtkVScale();
detail = "vscale";
orientation = GTK_ORIENTATION_VERTICAL;
} else {
widget = gtkHScale();
detail = "hscale";
orientation = GTK_ORIENTATION_HORIZONTAL;
}
gtk_widget_set_direction(widget, gtkTextDirection(object->style()->direction()));
// Only some themes have slider thumbs respond to clicks and some don't. This information is
// gathered via the 'activate-slider' property, but it's deprecated in GTK+ 2.22 and removed in
// GTK+ 3.x. The drawback of not honoring it is that slider thumbs change color when you click
// on them.
IntRect thumbRect(IntPoint(), rect.size());
WidgetRenderingContext widgetContext(info.context, rect);
widgetContext.gtkPaintSlider(thumbRect, widget, getGtkStateType(object), GTK_SHADOW_OUT, detail, orientation);
return false;
}
bool RenderThemeGtk::paintSliderTrack(RenderObject* object, const PaintInfo& info, const IntRect& rect)
{
if (info.context->paintingDisabled())
return false;
ControlPart part = object->style()->appearance();
ASSERT(part == SliderHorizontalPart || part == SliderVerticalPart);
// We shrink the trough rect slightly to make room for the focus indicator.
IntRect troughRect(IntPoint(), rect.size()); // This is relative to rect.
GtkWidget* widget = 0;
if (part == SliderVerticalPart) {
widget = gtkVScale();
troughRect.inflateY(-gtk_widget_get_style(widget)->ythickness);
} else {
widget = gtkHScale();
troughRect.inflateX(-gtk_widget_get_style(widget)->xthickness);
}
gtk_widget_set_direction(widget, gtkTextDirection(object->style()->direction()));
WidgetRenderingContext widgetContext(info.context, rect);
widgetContext.gtkPaintBox(troughRect, widget, GTK_STATE_ACTIVE, GTK_SHADOW_OUT, "trough");
if (isFocused(object))
widgetContext.gtkPaintFocus(IntRect(IntPoint(), rect.size()), widget, getGtkStateType(object), "trough");
return false;
}
bool RenderThemeGtk::paintMenuList(RenderObject* object, const PaintInfo& info, const IntRect& rect)
{
if (paintButton(object, info, rect))
return true;
// Menu list button painting strategy.
// For buttons with appears-as-list set to false (having a separator):
// | left border | Button text | xthickness | vseparator | xthickness | arrow | xthickness | right border |
// For buttons with appears-as-list set to true (not having a separator):
// | left border | Button text | arrow | xthickness | right border |
int leftBorder = 0, rightBorder = 0, bottomBorder = 0, topBorder = 0;
getButtonInnerBorder(gtkComboBoxButton(), leftBorder, topBorder, rightBorder, bottomBorder);
RenderStyle* style = &object->style();
int arrowSize = comboBoxArrowSize(style);
GtkStyle* buttonStyle = gtk_widget_get_style(gtkComboBoxButton());
IntRect arrowRect(0, (rect.height() - arrowSize) / 2, arrowSize, arrowSize);
if (style->direction() == RTL)
arrowRect.setX(leftBorder + buttonStyle->xthickness);
else
arrowRect.setX(rect.width() - rightBorder - buttonStyle->xthickness - arrowSize);
GtkShadowType shadowType = isPressed(object) ? GTK_SHADOW_IN : GTK_SHADOW_OUT;
WidgetRenderingContext widgetContext(info.context, rect);
GtkStateType stateType = getGtkStateType(this, object);
widgetContext.gtkPaintArrow(arrowRect, gtkComboBoxArrow(), stateType, shadowType, GTK_ARROW_DOWN, "arrow");
// Some combo boxes do not have a separator.
GtkWidget* separator = gtkComboBoxSeparator();
if (!separator)
return false;
// We want to decrease the height of the separator based on the focus padding of the button.
gint focusPadding = 0, focusWidth = 0;
gtk_widget_style_get(gtkComboBoxButton(),
"focus-line-width", &focusWidth,
"focus-padding", &focusPadding, NULL);
topBorder += focusPadding + focusWidth;
bottomBorder += focusPadding + focusWidth;
int separatorWidth = getComboBoxSeparatorWidth();
IntRect separatorRect(0, topBorder, separatorWidth, rect.height() - topBorder - bottomBorder);
if (style->direction() == RTL)
separatorRect.setX(arrowRect.x() + arrowRect.width() + buttonStyle->xthickness + separatorWidth);
else
separatorRect.setX(arrowRect.x() - buttonStyle->xthickness - separatorWidth);
gboolean hasWideSeparators = FALSE;
gtk_widget_style_get(separator, "wide-separators", &hasWideSeparators, NULL);
if (hasWideSeparators)
widgetContext.gtkPaintBox(separatorRect, separator, GTK_STATE_NORMAL, GTK_SHADOW_ETCHED_OUT, "vseparator");
else
widgetContext.gtkPaintVLine(separatorRect, separator, GTK_STATE_NORMAL, "vseparator");
return false;
}
bool RenderThemeGtk::paintButton(RenderObject* object, const PaintInfo& info, const IntRect& rect)
{
if (info.context->paintingDisabled())
return false;
GtkWidget* widget = gtkButton();
IntRect buttonRect(IntPoint(), rect.size());
IntRect focusRect(buttonRect);
GtkStateType state = getGtkStateType(object);
gtk_widget_set_state(widget, state);
gtk_widget_set_direction(widget, gtkTextDirection(object->style()->direction()));
if (isFocused(object)) {
if (isEnabled(object)) {
#if !GTK_CHECK_VERSION(2, 22, 0)
GTK_WIDGET_SET_FLAGS(widget, GTK_HAS_FOCUS);
#endif
g_object_set(widget, "has-focus", TRUE, NULL);
}
gboolean interiorFocus = 0, focusWidth = 0, focusPadding = 0;
gtk_widget_style_get(widget,
"interior-focus", &interiorFocus,
"focus-line-width", &focusWidth,
"focus-padding", &focusPadding, NULL);
// If we are using exterior focus, we shrink the button rect down before
// drawing. If we are using interior focus we shrink the focus rect. This
// approach originates from the Mozilla theme drawing code (gtk2drawing.c).
if (interiorFocus) {
GtkStyle* style = gtk_widget_get_style(widget);
focusRect.inflateX(-style->xthickness - focusPadding);
focusRect.inflateY(-style->ythickness - focusPadding);
} else {
buttonRect.inflateX(-focusWidth - focusPadding);
buttonRect.inflateY(-focusPadding - focusPadding);
}
}
WidgetRenderingContext widgetContext(info.context, rect);
GtkShadowType shadowType = state == GTK_STATE_ACTIVE ? GTK_SHADOW_IN : GTK_SHADOW_OUT;
widgetContext.gtkPaintBox(buttonRect, widget, state, shadowType, "button");
if (isFocused(object))
widgetContext.gtkPaintFocus(focusRect, widget, state, "button");
#if !GTK_CHECK_VERSION(2, 22, 0)
GTK_WIDGET_UNSET_FLAGS(widget, GTK_HAS_FOCUS);
#endif
g_object_set(widget, "has-focus", FALSE, NULL);
return false;
}
static void paintToggle(RenderThemeGtk* theme, RenderObject* renderObject, const PaintInfo& info, const IntRect& rect, GtkWidget* widget)
{
// We do not call gtk_toggle_button_set_active here, because some themes begin a series of
// animation frames in a "toggled" signal handler. This puts some checkboxes in a half-way
// checked state. Every GTK+ theme I tested merely looks at the shadow type (and not the
// 'active' property) to determine whether or not to draw the check.
gtk_widget_set_sensitive(widget, theme->isEnabled(renderObject) && !theme->isReadOnlyControl(renderObject));
gtk_widget_set_direction(widget, gtkTextDirection(renderObject->style().direction()));
bool indeterminate = theme->isIndeterminate(renderObject);
gtk_toggle_button_set_inconsistent(GTK_TOGGLE_BUTTON(widget), indeterminate);
GtkShadowType shadowType = GTK_SHADOW_OUT;
if (indeterminate) // This originates from the Mozilla code.
shadowType = GTK_SHADOW_ETCHED_IN;
else if (theme->isChecked(renderObject))
shadowType = GTK_SHADOW_IN;
WidgetRenderingContext widgetContext(info.context, rect);
IntRect buttonRect(IntPoint(), rect.size());
GtkStateType toggleState = getGtkStateType(theme, renderObject);
const char* detail = 0;
if (GTK_IS_RADIO_BUTTON(widget)) {
detail = "radiobutton";
widgetContext.gtkPaintOption(buttonRect, widget, toggleState, shadowType, detail);
} else {
detail = "checkbutton";
widgetContext.gtkPaintCheck(buttonRect, widget, toggleState, shadowType, detail);
}
if (theme->isFocused(renderObject)) {
IntRect focusRect(buttonRect);
adjustRectForFocus(widget, focusRect, true);
widgetContext.gtkPaintFocus(focusRect, widget, toggleState, detail);
}
}
