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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <FL/fl_draw.H>
#include <FL/Fl.H>
#include <FL/Fl_Group.H>
#include <FL/Fl_Menu_Window.H>
#include <FL/Fl_Tooltip.H>
#include <FL/Fl_Button.H>
#include "tipwin.hh"
/*
* Forward declarations
*/
static void show_timeout(void*);
static void recent_timeout(void*);
/*
* Custom tooltip window
*/
TipWin::TipWin() : Fl_Menu_Window(1, 1) // will autosize
{
bgcolor = fl_color_cube(FL_NUM_RED - 1, FL_NUM_GREEN - 1, FL_NUM_BLUE - 2);
recent = 0;
strcpy(tip, "");
cur_widget = NULL;
set_override(); // no border
end();
}
void TipWin::draw()
{
draw_box(FL_BORDER_BOX, 0, 0, w(), h(), bgcolor);
fl_color(FL_BLACK);
fl_font(labelfont(), labelsize());
fl_draw(tip, 3, 3, w() - 6, h() - 6,
//Fl_Align(FL_ALIGN_LEFT | FL_ALIGN_WRAP));
Fl_Align(FL_ALIGN_LEFT));
}
void TipWin::value(const char *s) {
// Recalc size of window
snprintf(tip, sizeof(tip) - 1, "%s", s);
fl_font(labelfont(), labelsize());
int W = w(), H = h();
W = 0;
fl_measure(tip, W, H, 0);
W += 8; H += 8;
size(W, H);
redraw();
}
void TipWin::do_show(void *wid) {
cur_widget = wid; // Keep track of requesting widget
Fl::add_timeout(recent ? 0.2f : 0.8f, show_timeout);
}
void TipWin::do_hide() {
Fl::remove_timeout(show_timeout);
if (shown()) {
hide();
recent = 1;
Fl::add_timeout(0.8f, recent_timeout);
}
}
void TipWin::recent_tooltip(int val) {
recent = val;
}
//--------------------------------------------------------------------------
TipWin *my_tipwin(void)
{
static TipWin *tw = NULL;
if (!tw) {
Fl_Group *save = Fl_Group::current(); // save current widget..
tw = new TipWin(); // ..because this trashes it
tw->hide(); // start hidden
Fl_Group::current(save); // ..then back to previous.
}
return tw;
}
static void show_timeout(void*) {
// if offscreen, move tip ABOVE mouse instead
int scr_x, scr_y, scr_w, scr_h;
Fl::screen_xywh(scr_x, scr_y, scr_w, scr_h);
int ty = Fl::event_y_root() + 20;
if (ty + my_tipwin()->h() > scr_h)
ty = Fl::event_y_root() - 20 - my_tipwin()->h();
if (ty < 0) ty = 0;
my_tipwin()->position(Fl::event_x_root(), ty);
my_tipwin()->show();
my_tipwin()->recent_tooltip(0);
}
static void recent_timeout(void*) {
my_tipwin()->recent_tooltip(0);
}
//---------------------------------------------------------------------------
/*
* A Button sharing a custom tooltip window
*/
TipWinButton::TipWinButton(int x, int y, int w, int h, const char *l) :
Fl_Button(x, y, w, h, l)
{
tipwin = my_tipwin();
mytooltip = strdup("empty");
}
TipWinButton::~TipWinButton(void)
{
tipwin->cancel(this); // cancel tooltip if shown
free(mytooltip);
}
int TipWinButton::handle(int e)
{
switch (e) {
case FL_ENTER:
tipwin->value(mytooltip);
tipwin->do_show(this);
break;
case FL_PUSH: // push mouse
case FL_RELEASE: // release mouse
case FL_HIDE: // widget goes away
case FL_LEAVE: // leave focus
tipwin->do_hide();
break;
}
return (Fl_Button::handle(e));
}
void TipWinButton::set_tooltip(const char *s)
{
free(mytooltip);
mytooltip = strdup(s);
}
//---------------------------------------------------------------------------
/*
* A Light Button sharing a custom tooltip window
*/
CustButton::CustButton(int x, int y, int w, int h, const char *l) :
TipWinButton(x,y,w,h,l)
{
norm_color = color();
light_color = 17; // {17,26,51}
}
int CustButton::handle(int e)
{
if (active()) {
if (e == FL_ENTER) {
color(light_color);
redraw();
} else if (e == FL_LEAVE || e == FL_RELEASE || e == FL_HIDE) {
color(norm_color);
redraw();
}
} else if (e == FL_DEACTIVATE && color() != norm_color) {
color(norm_color);
redraw();
}
return TipWinButton::handle(e);
}
void CustButton::hl_color(Fl_Color col)
{
light_color = col;
}
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