1 /* PlusButton.cpp
2 * Copyright (C) 2018, 2019 Sven Jähnichen
3 *
4 * This program is free software: you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation, either version 3 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program. If not, see <https://www.gnu.org/licenses/>.
16 */
17
18 #include "PlusButton.hpp"
19
20 namespace BWidgets
21 {
PlusButton()22 PlusButton::PlusButton () :
23 PlusButton (0.0, 0.0, BWIDGETS_DEFAULT_BUTTON_WIDTH, BWIDGETS_DEFAULT_BUTTON_HEIGHT, "upbutton", 0.0) {}
24
PlusButton(const double x,const double y,const double width,const double height,const std::string & name,double defaultValue)25 PlusButton::PlusButton (const double x, const double y, const double width, const double height, const std::string& name, double defaultValue) :
26 Button (x, y, width, height, name, defaultValue) {}
27
clone() const28 Widget* PlusButton::clone () const {return new PlusButton (*this);}
29
draw(const BUtilities::RectArea & area)30 void PlusButton::draw (const BUtilities::RectArea& area)
31 {
32 if ((!widgetSurface_) || (cairo_surface_status (widgetSurface_) != CAIRO_STATUS_SUCCESS)) return;
33
34 if ((getWidth () >= 6) && (getHeight () >= 6))
35 {
36
37 Button::draw (area);
38
39 cairo_t* cr = cairo_create (widgetSurface_);
40 if (cairo_status (cr) == CAIRO_STATUS_SUCCESS)
41 {
42 // Limit cairo-drawing area
43 cairo_rectangle (cr, area.getX (), area.getY (), area.getWidth (), area.getHeight ());
44 cairo_clip (cr);
45
46 double x0 = getXOffset ();
47 double y0 = getYOffset ();
48 double w = getEffectiveWidth ();
49 double h = getEffectiveHeight ();
50 double size = (w < h ? w * 0.6 : h * 0.6);
51 BColors::Color butColor = *bgColors.getColor (getState ()); butColor.applyBrightness (BWIDGETS_DEFAULT_NORMALLIGHTED);
52 BColors::Color frColor= *bgColors.getColor (getState ());
53
54 if (value) frColor.applyBrightness (2 * BWIDGETS_DEFAULT_ILLUMINATED);
55 else frColor.applyBrightness (2 * BWIDGETS_DEFAULT_SHADOWED);
56
57 // Symbol
58 cairo_set_line_width (cr, BWIDGETS_DEFAULT_BUTTON_BORDER);
59 cairo_move_to (cr, x0 + w/2 - 0.375 * size, y0 + h/2);
60 cairo_line_to (cr, x0 + w/2 + 0.375 * size, y0 + h/2);
61 cairo_move_to (cr, x0 + w/2, y0 + h/2 - 0.375 * size);
62 cairo_line_to (cr, x0 + w/2, y0 + h/2 + 0.375 * size);
63 cairo_set_source_rgba (cr, CAIRO_RGBA (frColor));
64 cairo_stroke (cr);
65
66 cairo_destroy (cr);
67 }
68 }
69 }
70 }
71