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- // generated by Fast Light User Interface Designer (fluid) version 1.0107f
-
- #include "WidgetPDial.h"
- #include <cstdio>
- #include <iostream>
- #include <cmath>
- #include <string>
- #include <FL/Fl_Tooltip.H>
- #include <FL/fl_draw.H>
- #include <FL/Fl_Group.H>
- #include <FL/Fl_Menu_Window.H>
- #include "../Misc/Util.h"
- //Copyright (c) 2003-2005 Nasca Octavian Paul
- //License: GNU GPL version 2 or later
-
- using namespace std;
-
- class TipWin:public Fl_Menu_Window
- {
- public:
- TipWin();
- void draw();
- void showValue(float f);
- void setText(const char *c);
- void showText();
- private:
- void redraw();
- const char *getStr() const;
- string tip;
- string text;
- bool textmode;
- };
-
- TipWin::TipWin():Fl_Menu_Window(1, 1)
- {
- set_override();
- end();
- }
-
- void TipWin::draw()
- {
- //setup window
- draw_box(FL_BORDER_BOX, 0, 0, w(), h(), Fl_Color(175));
- fl_color(Fl_Tooltip::textcolor());
- fl_font(labelfont(), labelsize());
-
- //Draw the current string
- fl_draw(getStr(), 3, 3, w() - 6, h() - 6,
- Fl_Align(FL_ALIGN_LEFT | FL_ALIGN_WRAP));
- }
-
- void TipWin::showValue(float f)
- {
- //convert the value to a string
- char tmp[10];
- snprintf(tmp, 9, "%.2f", f);
- tip = tmp;
-
- textmode = false;
- redraw();
- show();
- }
-
- void TipWin::setText(const char *c)
- {
- text = c;
- textmode = true;
- redraw();
- }
-
- void TipWin::showText()
- {
- if(!text.empty()) {
- textmode = true;
- redraw();
- show();
- }
- }
-
- void TipWin::redraw()
- {
- // Recalc size of window
- fl_font(labelfont(), labelsize());
- int W = 0, H = 0;
- fl_measure(getStr(), W, H, 0);
- //provide a bit of extra space
- W += 8;
- H += 4;
- size(W, H);
- Fl_Menu_Window::redraw();
- }
-
- const char *TipWin::getStr() const
- {
- return (textmode ? text : tip).c_str();
- }
-
- //static int numobj = 0;
-
- WidgetPDial::WidgetPDial(int x, int y, int w, int h, const char *label)
- :Fl_Dial(x, y, w, h, label), oldvalue(0.0f), pos(false), textset(false)
- {
- //cout << "[" << label << "] There are now " << ++numobj << endl;
- Fl_Group *save = Fl_Group::current();
- tipwin = new TipWin();
- tipwin->hide();
- Fl_Group::current(save);
- }
-
- WidgetPDial::~WidgetPDial()
- {
- //cout << "There are now " << --numobj << endl;
- delete tipwin;
- }
-
- int WidgetPDial::handle(int event)
- {
- //#ifdef NTK_GUI
- // return Fl_Dial::handle( event );
- //#else
- double dragsize, min = minimum(), max = maximum();
- int my;
-
- switch(event) {
- case FL_PUSH:
- oldvalue = value();
- case FL_DRAG:
- getPos();
- my = -(Fl::event_y() - y() - h() / 2);
-
- dragsize = 200.0f;
- if(Fl::event_state(FL_BUTTON1) == 0)
- dragsize *= 10;
-
- value(limit(oldvalue + my / dragsize * (max - min), min, max));
- tipwin->showValue(value());
- value_damage();
- if(this->when() != 0)
- do_callback();
- return 1;
- case FL_MOUSEWHEEL:
- if (Fl::belowmouse() != this)
- return 1;
- my = - Fl::event_dy();
-
- dragsize = 200.0f;
- if(Fl::event_state(FL_CTRL) != 0)
- dragsize *= 10;
-
- value(limit(value() + my / dragsize * (max - min), min, max));
- tipwin->showValue(value());
- value_damage();
- if(this->when() != 0)
- do_callback();
- return 1;
- case FL_ENTER:
- getPos();
- tipwin->showText();
- return 1;
- case FL_HIDE:
- case FL_LEAVE:
- tipwin->hide();
- resetPos();
- break;
- case FL_RELEASE:
- tipwin->hide();
- resetPos();
- if(this->when() == 0)
- do_callback();
- return 1;
- break;
- }
- return 0;
- //#endif
- }
-
- void WidgetPDial::draw()
- {
- #ifdef NTK_GUI
- box( FL_NO_BOX );
-
- Fl_Dial::draw();
-
- return;
- #else
- const int cx = x(), cy = y(), sx = w(), sy = h();
- const double a1 = angle1(), a2 = angle2();
- const double val = (value() - minimum()) / (maximum() - minimum());
- // even radius produces less artifacts if no antialiasing is avail
- const int rad = (sx > sy ? sy : sx) &~1;
-
- /* clears the button background */
- pdialcolor(160, 160, 160);
- fl_pie(cx - 2, cy - 2, rad + 4, rad + 4, 0, 360);
-
- /* dark outline */
- fl_color(60, 60, 60);
- fl_pie(cx - 1, cy - 1, rad + 2, rad + 2, 0, 360);
-
- /* Draws the button faceplate, min/max */
- pdialcolor(110, 110, 115);
- fl_pie(cx, cy, rad, rad, 270 - a2, 270 - a1);
-
- /* knob center */
- if (rad > 8) {
- pdialcolor(140, 140, 145);
- fl_pie(cx + 4, cy + 4, rad - 8, rad - 8, 0, 360);
- }
-
- /* value circle */
- double a = -(a2 - a1) * val - a1;
- fl_line_style(0, 2, 0);
- pdialcolor(0, 200, 0);
- fl_arc(cx + 1, cy + 1, rad - 2, rad - 2, a - 90, a1 - 180);
- fl_line_style(0);
-
- /* draw value line */
- int ll = rad/4;
- if (ll < 2) ll = 2;
-
- fl_push_matrix();
-
- fl_translate(cx + rad / 2, cy + rad / 2);
- fl_rotate(a - 90.0f);
-
- fl_translate(rad / 2, 0);
-
- fl_begin_polygon();
- pdialcolor(0, 0, 0);
- fl_vertex(-ll, 0);
- fl_vertex(0, 0);
- fl_end_polygon();
-
- fl_pop_matrix();
-
- #endif
- }
-
- void WidgetPDial::pdialcolor(int r, int g, int b)
- {
- if(active_r())
- fl_color(r, g, b);
- else
- fl_color(160 - (160 - r) / 3, 160 - (160 - b) / 3, 160 - (160 - b) / 3);
- }
-
- void WidgetPDial::tooltip(const char *c)
- {
- tipwin->setText(c);
- textset = true;
- }
-
- void WidgetPDial::getPos()
- {
- if(!pos) {
- tipwin->position(Fl::event_x_root(), Fl::event_y_root() + 20);
- pos = true;
- }
- }
-
- void WidgetPDial::resetPos()
- {
- pos = false;
- }
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