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[STR New]
Link: http://www.fltk.org/str.php?L2010
Version: 2.0-feature
I'd like to be able to use dynamic tooltips, ie, change them on the fly
based on the data being shown (specially in an elided header in a
browser).
I added copy_tooltip in the same way that copy_label is implemented.
HOWEVER that means another flag() value is burned which could cause all
kinds of trouble.
Link: http://www.fltk.org/str.php?L2010
Version: 2.0-feature
Index: fltk/Widget.h
===================================================================
--- fltk/Widget.h (revision 6147)
+++ fltk/Widget.h (working copy)
@@ -99,7 +99,8 @@
void image(const Symbol& a) { image_ = &a; }
const char *tooltip() const { return tooltip_; }
- void tooltip(const char *t) { tooltip_ = t; }
+ void tooltip(const char* t);
+ void copy_tooltip(const char* t);
unsigned shortcut() const ;
bool shortcut(unsigned key) ;
Index: src/Widget.cxx
===================================================================
--- src/Widget.cxx (revision 6147)
+++ src/Widget.cxx (working copy)
@@ -99,6 +99,7 @@
delete (Style*)style_; // cast away const
}
if (flags_&COPIED_LABEL) delete[] const_cast<char*>( label_ );
+ if (flags_&COPIED_TOOLTIP) delete[] const_cast<char*>( tooltip_ );
}
/*! \fn Group* Widget::parent() const
@@ -153,10 +154,10 @@
label_ = s;
}
-/*! Sets the label to a copy of the string.
+/*! Sets the tooltip to a copy of the string.
The passed string is copied to private storage and used to set the
- label(). The memory will be freed when the widget is destroyed or when
- copy_label() is called again, or label(const char*) is called.
+ tooltip(). The memory will be freed when the widget is destroyed or when
+ copy_tooltip() is called again, or tooltip(const char*) is called.
Passing NULL will set label() to NULL.
*/
@@ -167,14 +168,6 @@
flags_ |= COPIED_LABEL;
}
-/*! void Widget::image(Image*)
- Sets the image. The image is drawn as part of the label, usually to
- the left of the text. This is designed for icons on menu items. If
- you want to replace the entire background of the widget with a picture
- you should set box() instead. Notice that you can also get images into
- labels by putting '@' commands into the label().
-*/
-
/*! void Widget::tooltip(const char*)
Set the string used as the pop-up tooltip. The pointer to the passed string
is stored, it is not copied! Passing null indicates that the tooltip
@@ -185,7 +178,37 @@
Putting '@' commands in to bring up Symbol objects will allow a lot
of interesting things to be put into the tooltip.
*/
+void Widget::tooltip(const char* s) {
+ if (tooltip_ == s) return; // Avoid problems if label(label()) is called
+ if (flags_&COPIED_TOOLTIP) {
+ delete[] const_cast<char*>( tooltip_ );
+ flags_ &= ~COPIED_TOOLTIP;
+ }
+ tooltip_ = s;
+}
+/*! Sets the label to a copy of the string.
+ The passed string is copied to private storage and used to set the
+ label(). The memory will be freed when the widget is destroyed or when
+ copy_label() is called again, or label(const char*) is called.
+
+ Passing NULL will set label() to NULL.
+*/
+void Widget::copy_tooltip(const char* s) {
+ if (tooltip_ == s) return; // Avoid problems if label(label()) is called
+ if (flags_&COPIED_TOOLTIP) delete[] const_cast<char*>( tooltip_ );
+ tooltip_ = newstring(s);
+ flags_ |= COPIED_TOOLTIP;
+}
+
+/*! void Widget::image(Image*)
+ Sets the image. The image is drawn as part of the label, usually to
+ the left of the text. This is designed for icons on menu items. If
+ you want to replace the entire background of the widget with a picture
+ you should set box() instead. Notice that you can also get images into
+ labels by putting '@' commands into the label().
+*/
+
/*! \fn void Widget::callback(fltk::Callback*, void*)
Each widget has a single callback. You can set it or examine it with
these methods. The callback is called with the widget as the first
Index: fltk/Flags.h
===================================================================
--- fltk/Flags.h (revision 6147)
+++ fltk/Flags.h (working copy)
@@ -86,17 +86,18 @@
INVISIBLE = 0x00001000, //!< !visible(), draw_frame()
HIGHLIGHT = 0x00002000, //!< draw highlighted
CHANGED = 0x00004000, //!< value changed since last callback
- COPIED_LABEL = 0x00008000, //!< copy_label() was called
+ COPIED_LABEL = 0x00008000, //!< copy_label() was called
RAW_LABEL = 0x00010000, //!< don't interpret & or @ in label
- LAYOUT_VERTICAL = 0x00020000, //!< fltk::Pack puts this widget
vertical
- TAB_TO_FOCUS = 0x00040000, //!< Widget::tab_to_focus();
- CLICK_TO_FOCUS = 0x00080000, //!< Widget::click_to_focus()
- INACTIVE_R = 0x00100000, //!< draw it grayed-out
+ LAYOUT_VERTICAL = 0x00020000, //!< fltk::Pack puts this widget vertical
+ TAB_TO_FOCUS = 0x00040000, //!< Widget::tab_to_focus();
+ CLICK_TO_FOCUS = 0x00080000, //!< Widget::click_to_focus()
+ INACTIVE_R = 0x00100000, //!< draw it grayed-out
FOCUSED = 0x00200000, //!< draw with keyboard focus
PUSHED = 0x00400000, //!< draw pushed-in
- RESIZE_NONE = 0, //!< default behavior
- RESIZE_FIT = 0x01000000, //!< proportionnaly resize img in widget
- RESIZE_FILL = 0x00800000, //!< resize img to fill the widget
+ RESIZE_NONE = 0, //!< default behavior
+ RESIZE_FILL = 0x00800000, //!< resize img to fill the widget
+ RESIZE_FIT = 0x01000000, //!< proportionnaly resize img in widget
+ COPIED_TOOLTIP = 0x02000000, //!< copy_tooltip() was called
OPENED = STATE //!< opened browser hierarchy parent
};
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