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You want real tooltips too? You got 'em. See the ChangeLog for how to use.
Works with both xforms 0.88 and 0.89. git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@3489 a592a061-630c-0410-9148-cb99ea01b6c8
This commit is contained in:
Angus Leeming
parent
828fe3bc12
commit
a1b36fec35
@ -1,3 +1,10 @@
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2002-02-05 Angus Leeming <a.leeming@ic.ac.uk>
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* FormBase.[Ch]: You want tooltips too? You got 'em. Verified as
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working with both xforms 0.88 and 0.89. Use by invoking
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setTooltipHandler(ob) and by providing a method getTooltip(ob) in this
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derived class to provide the required string.
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2002-02-05 Angus Leeming <a.leeming@ic.ac.uk>
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* FormBase.[Ch]: make it really easy to set up and use a prehandler
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@ -21,6 +21,34 @@
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#include "xformsBC.h"
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#include "support/LAssert.h"
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#if FL_REVISION < 89
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namespace {
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int TooltipHandler(FL_OBJECT *ob, int event);
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void TooltipTimerCB(FL_OBJECT * timer, long data);
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}
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extern "C" {
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static int C_FormBaseTooltipHandler(FL_OBJECT * ob, int event,
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FL_Coord, FL_Coord, int, void *)
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{
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return TooltipHandler(ob, event);
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}
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static void C_FormBaseTooltipTimerCB(FL_OBJECT * ob, long data)
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{
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TooltipTimerCB(ob, data);
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}
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}
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#endif // FL_REVISION < 89
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extern "C" {
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// Callback function invoked by xforms when the dialog is closed by the
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@ -39,7 +67,11 @@ FormBase::FormBase(ControlButtons & c, string const & t, bool allowResize)
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: ViewBC<xformsBC>(c), minw_(0), minh_(0), allow_resize_(allowResize),
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title_(t), warning_posted_(false)
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{}
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{
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#if FL_REVISION < 89
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tooltip_timer_ = 0;
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#endif
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}
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void FormBase::redraw()
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@ -144,6 +176,28 @@ void FormBase::FeedbackCB(FL_OBJECT * ob, int event)
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}
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void FormBase::setTooltipHandler(FL_OBJECT * ob)
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{
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lyx::Assert(ob);
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#if FL_REVISION < 89
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if (!tooltip_timer_) {
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fl_addto_form(form());
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tooltip_timer_ = fl_add_timer(FL_HIDDEN_TIMER, 0, 0, 0, 0, "");
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fl_end_form();
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}
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fl_set_object_posthandler(ob, C_FormBaseTooltipHandler);
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ob->u_cdata = reinterpret_cast<char *>(tooltip_timer_);
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#else
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string const help(getTooltip(ob));
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if (!help.empty())
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fl_set_object_helper(ob, help.c_str());
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#endif // FL_REVISION < 89
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}
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void FormBase::setPrehandler(FL_OBJECT * ob)
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{
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lyx::Assert(ob);
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@ -157,6 +211,16 @@ void FormBase::setWarningPosted(bool warning)
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}
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#if FL_REVISION < 89
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string const FormBase::getTooltipCB(FL_OBJECT * ob)
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{
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return getTooltip(ob);
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}
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#endif // FL_REVISION < 89
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namespace {
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FormBase * GetForm(FL_OBJECT * ob)
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@ -171,16 +235,6 @@ FormBase * GetForm(FL_OBJECT * ob)
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extern "C" {
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static int C_FormBaseWMHideCB(FL_FORM * form, void *)
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{
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// Close the dialog cleanly, even if the WM is used to do so.
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lyx::Assert(form && form->u_vdata);
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FormBase * pre = static_cast<FormBase *>(form->u_vdata);
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pre->CancelButton();
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return FL_CANCEL;
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}
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void C_FormBaseApplyCB(FL_OBJECT * ob, long)
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{
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GetForm(ob)->ApplyButton();
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@ -212,6 +266,16 @@ void C_FormBaseInputCB(FL_OBJECT * ob, long d)
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}
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static int C_FormBaseWMHideCB(FL_FORM * form, void *)
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{
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// Close the dialog cleanly, even if the WM is used to do so.
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lyx::Assert(form && form->u_vdata);
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FormBase * pre = static_cast<FormBase *>(form->u_vdata);
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pre->CancelButton();
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return FL_CANCEL;
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}
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static int C_FormBasePrehandler(FL_OBJECT * ob, int event,
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FL_Coord, FL_Coord, int key, void *)
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{
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@ -240,5 +304,50 @@ static int C_FormBasePrehandler(FL_OBJECT * ob, int event,
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return 0;
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}
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} // extern "C"
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#if FL_REVISION < 89
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namespace {
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void TooltipTimerCB(FL_OBJECT * timer, long data)
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{
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FL_OBJECT * ob = reinterpret_cast<FL_OBJECT*>(data);
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lyx::Assert(ob && ob->form);
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string const help = GetForm(timer)->getTooltipCB(ob);
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if (help.empty())
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return;
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fl_show_oneliner(help.c_str(),
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ob->form->x + ob->x,
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ob->form->y + ob->y + ob->h);
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}
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// post_handler for bubble-help (Matthias)
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int TooltipHandler(FL_OBJECT *ob, int event)
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{
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lyx::Assert(ob);
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FL_OBJECT * timer = reinterpret_cast<FL_OBJECT *>(ob->u_cdata);
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lyx::Assert(timer);
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// We do not test for empty help here, since this can never happen
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if (event == FL_ENTER){
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fl_set_object_callback(timer,
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C_FormBaseTooltipTimerCB,
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reinterpret_cast<long>(ob));
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fl_set_timer(timer, 1);
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}
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else if (event != FL_MOTION){
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fl_set_timer(timer, 0);
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fl_hide_oneliner();
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}
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return 0;
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}
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} // namespace anon
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#endif // FL_REVISION < 89
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@ -27,6 +27,7 @@
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class xformsBC;
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/** This class is an XForms GUI base class.
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*/
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class FormBase : public ViewBC<xformsBC>
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@ -37,12 +38,17 @@ public:
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///
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virtual ~FormBase() {}
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/// input callback function
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/** input callback function.
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Invoked only by C_FormBaseInputCB and by C_FormBasePrehandler */
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void InputCB(FL_OBJECT *, long);
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/// feedback callback function
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/// feedback callback function, invoked only by C_FormBasePrehandler
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void FeedbackCB(FL_OBJECT *, int event);
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#if FL_REVISION < 89
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/// invoked only by TooltipTimerCB
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string const getTooltipCB(FL_OBJECT *);
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#endif
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protected:
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/// Build the dialog
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virtual void build() = 0;
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@ -50,19 +56,21 @@ protected:
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void hide();
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/// Create the dialog if necessary, update it and display it.
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void show();
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/** Set a prehandler for ob to:
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1. display feedback as the mouse moves over it
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/// Prepare the way to produce a tooltip when the mouse is over ob.
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void setTooltipHandler(FL_OBJECT * ob);
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/** Prepare the way to:
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1. display feedback as the mouse moves over ob. This feedback will
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typically be rather more verbose than just a tooltip.
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2. activate the button controller after a paste with the middle
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mouse button */
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void setPrehandler(FL_OBJECT * ob);
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/// post feedback for ob. Defaults to nothing
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virtual void feedback(FL_OBJECT * /* ob */) {}
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/// clear the feedback message
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virtual void clear_feedback() {}
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/** Flag that the message is a warning and should not be removed
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when the mouse is no longer over the object */
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when the mouse is no longer over the object.
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Used in conjunction with setPrehandler(ob) and with feedback(ob),
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clear_feedback(). */
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void setWarningPosted(bool);
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private:
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@ -75,6 +83,14 @@ private:
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that the xform colors have been re-mapped). */
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virtual void redraw();
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///
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virtual string const getTooltip(FL_OBJECT *) { return string(); }
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/// post feedback for ob. Defaults to nothing
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virtual void feedback(FL_OBJECT * /* ob */) {}
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/// clear the feedback message
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virtual void clear_feedback() {}
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/// The dialog's minimum allowable dimensions.
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int minw_;
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///
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@ -86,6 +102,10 @@ private:
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/** Variable used to decide whether to remove the existing feedback
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message or not (if it is infact a warning) */
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bool warning_posted_;
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/// Enables tooltips for crappy GUI libraries...
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#if FL_REVISION < 89
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FL_OBJECT * tooltip_timer_;
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#endif
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};
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