diff options
Diffstat (limited to 'src/tipwin.cc')
| -rw-r--r-- | src/tipwin.cc | 181 |
1 files changed, 181 insertions, 0 deletions
diff --git a/src/tipwin.cc b/src/tipwin.cc new file mode 100644 index 00000000..cec3dbaa --- /dev/null +++ b/src/tipwin.cc @@ -0,0 +1,181 @@ +#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; +} + |