gameui

annotate src/widget.cc @ 5:5a84873185ff

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rudimentary theme plugin system and other minor fixes
author John Tsiombikas <nuclear@member.fsf.org>
date Sat, 22 Mar 2014 01:50:01 +0200
parents e0916bb20b7f
children
rev   line source
nuclear@3 1 #include <stdio.h>
nuclear@3 2 #include <math.h>
nuclear@0 3 #include <string>
nuclear@2 4 #include <sstream>
nuclear@0 5 #include "widget.h"
nuclear@2 6 #include "boolanm.h"
nuclear@3 7 #include "theme.h"
nuclear@0 8
nuclear@4 9 namespace goatkit {
nuclear@0 10
nuclear@2 11 struct WidgetImpl {
nuclear@0 12 std::string name;
nuclear@0 13 BBox box;
nuclear@0 14
nuclear@2 15 BoolAnim visible, active, press, hover;
nuclear@0 16 };
nuclear@0 17
nuclear@0 18
nuclear@0 19 Widget::Widget()
nuclear@0 20 {
nuclear@0 21 static int widget_count;
nuclear@0 22
nuclear@3 23 widget = new WidgetImpl;
nuclear@3 24
nuclear@0 25 std::stringstream sstr;
nuclear@5 26 sstr << get_type_name() << widget_count++;
nuclear@3 27 widget->name = sstr.str();
nuclear@0 28
nuclear@3 29 widget->box.bmin = Vec2(0, 0);
nuclear@3 30 widget->box.bmax = Vec2(1, 1);
nuclear@0 31
nuclear@3 32 widget->visible.set(true);
nuclear@3 33 widget->active.set(true);
nuclear@0 34
nuclear@3 35 widget->hover.set_transition_duration(250);
nuclear@3 36 widget->press.set_transition_duration(50);
nuclear@0 37 }
nuclear@0 38
nuclear@0 39 Widget::~Widget()
nuclear@0 40 {
nuclear@3 41 delete widget;
nuclear@0 42 }
nuclear@0 43
nuclear@5 44 const char *Widget::get_type_name() const
nuclear@5 45 {
nuclear@5 46 return "widget";
nuclear@5 47 }
nuclear@5 48
nuclear@0 49 void Widget::show()
nuclear@0 50 {
nuclear@3 51 widget->visible.change(true);
nuclear@0 52 }
nuclear@0 53
nuclear@0 54 void Widget::hide()
nuclear@0 55 {
nuclear@3 56 widget->visible.change(false);
nuclear@0 57 }
nuclear@0 58
nuclear@0 59 float Widget::get_visibility() const
nuclear@0 60 {
nuclear@3 61 return widget->visible.get_value();
nuclear@3 62 }
nuclear@0 63
nuclear@3 64 bool Widget::is_visible() const
nuclear@3 65 {
nuclear@3 66 return widget->visible.get_state();
nuclear@0 67 }
nuclear@0 68
nuclear@1 69 void Widget::activate()
nuclear@1 70 {
nuclear@3 71 widget->active.change(true);
nuclear@1 72 }
nuclear@1 73
nuclear@3 74 void Widget::deactivate()
nuclear@0 75 {
nuclear@3 76 widget->active.change(false);
nuclear@0 77 }
nuclear@0 78
nuclear@3 79 float Widget::get_active() const
nuclear@0 80 {
nuclear@3 81 return widget->active.get_value();
nuclear@3 82 }
nuclear@0 83
nuclear@3 84 bool Widget::is_active() const
nuclear@3 85 {
nuclear@3 86 return widget->active.get_state();
nuclear@3 87 }
nuclear@3 88
nuclear@3 89 void Widget::press()
nuclear@3 90 {
nuclear@3 91 widget->press.change(true);
nuclear@3 92 }
nuclear@3 93
nuclear@3 94 void Widget::release()
nuclear@3 95 {
nuclear@3 96 widget->press.change(false);
nuclear@3 97 }
nuclear@3 98
nuclear@3 99 float Widget::get_pressed() const
nuclear@3 100 {
nuclear@3 101 return widget->press.get_value();
nuclear@3 102 }
nuclear@3 103
nuclear@3 104 bool Widget::is_pressed() const
nuclear@3 105 {
nuclear@3 106 return widget->press.get_state();
nuclear@3 107 }
nuclear@3 108
nuclear@3 109 void Widget::mousein()
nuclear@3 110 {
nuclear@3 111 widget->hover.change(true);
nuclear@3 112 }
nuclear@3 113
nuclear@3 114 void Widget::mouseout()
nuclear@3 115 {
nuclear@3 116 widget->hover.change(false);
nuclear@3 117 }
nuclear@3 118
nuclear@3 119 float Widget::get_under_mouse() const
nuclear@3 120 {
nuclear@3 121 return widget->hover.get_value();
nuclear@3 122 }
nuclear@3 123
nuclear@3 124 bool Widget::is_under_mouse() const
nuclear@3 125 {
nuclear@3 126 return widget->hover.get_state();
nuclear@3 127 }
nuclear@3 128
nuclear@3 129 void Widget::set_position(float x, float y)
nuclear@3 130 {
nuclear@3 131 set_position(Vec2(x, y));
nuclear@3 132 }
nuclear@3 133
nuclear@3 134 void Widget::set_position(const Vec2 &pos)
nuclear@3 135 {
nuclear@3 136 Vec2 sz = get_size();
nuclear@3 137
nuclear@3 138 widget->box.bmin = pos;
nuclear@3 139 widget->box.bmax.x = pos.x + sz.x;
nuclear@3 140 widget->box.bmax.y = pos.y + sz.y;
nuclear@3 141 }
nuclear@3 142
nuclear@3 143 const Vec2 &Widget::get_position() const
nuclear@3 144 {
nuclear@3 145 return widget->box.bmin;
nuclear@3 146 }
nuclear@3 147
nuclear@3 148 void Widget::set_size(float x, float y)
nuclear@3 149 {
nuclear@3 150 set_size(Vec2(x, y));
nuclear@3 151 }
nuclear@3 152
nuclear@3 153 void Widget::set_size(const Vec2 &sz)
nuclear@3 154 {
nuclear@3 155 widget->box.bmax.x = widget->box.bmin.x + sz.x;
nuclear@3 156 widget->box.bmax.y = widget->box.bmin.y + sz.y;
nuclear@3 157 }
nuclear@3 158
nuclear@3 159 const Vec2 Widget::get_size() const
nuclear@3 160 {
nuclear@3 161 return Vec2(widget->box.bmax.x - widget->box.bmin.x,
nuclear@3 162 widget->box.bmax.y - widget->box.bmin.y);
nuclear@3 163 }
nuclear@3 164
nuclear@3 165
nuclear@3 166 const BBox &Widget::get_box() const
nuclear@3 167 {
nuclear@3 168 return widget->box;
nuclear@3 169 }
nuclear@3 170
nuclear@3 171 bool Widget::hit_test(const Vec2 &pt) const
nuclear@3 172 {
nuclear@3 173 return pt.x >= widget->box.bmin.x && pt.x < widget->box.bmax.x &&
nuclear@3 174 pt.y >= widget->box.bmin.y && pt.y < widget->box.bmax.y;
nuclear@3 175 }
nuclear@3 176
nuclear@3 177 void Widget::draw() const
nuclear@3 178 {
nuclear@5 179 WidgetDrawFunc draw_func = default_draw_func;
nuclear@3 180
nuclear@3 181 if(theme) {
nuclear@5 182 draw_func = theme->get_draw_func(get_type_name());
nuclear@0 183 }
nuclear@3 184
nuclear@3 185 draw_func(this);
nuclear@0 186 }
nuclear@3 187
nuclear@3 188 // dummy event handlers
nuclear@3 189 void Widget::on_mouse_button(const ButtonEvent &ev)
nuclear@3 190 {
nuclear@3 191 }
nuclear@3 192
nuclear@3 193 void Widget::on_mouse_motion(const MotionEvent &ev)
nuclear@3 194 {
nuclear@3 195 }
nuclear@3 196
nuclear@3 197 void Widget::on_mouse_focus(const FocusEvent &ev)
nuclear@3 198 {
nuclear@3 199 }
nuclear@3 200
nuclear@3 201 void Widget::on_key(const KeyEvent &ev)
nuclear@3 202 {
nuclear@3 203 }
nuclear@3 204
nuclear@3 205 void Widget::on_click()
nuclear@3 206 {
nuclear@3 207 }
nuclear@3 208
nuclear@3 209 void Widget::on_double_click()
nuclear@3 210 {
nuclear@3 211 }
nuclear@3 212
nuclear@3 213 void Widget::on_change()
nuclear@3 214 {
nuclear@3 215 }
nuclear@3 216
nuclear@3 217
nuclear@3 218 /* the event dispatcher generates high-level events (click, etc)
nuclear@3 219 * and calls the on_whatever() functions for both low and high-level
nuclear@3 220 * events.
nuclear@3 221 * The on_whatever functions are called *after* any other actions performed
nuclear@3 222 * here, to give subclasses the opportunity to override them easily, by
nuclear@3 223 * overriding the on_ functions, without having to override handle_event itself
nuclear@3 224 */
nuclear@3 225 // TODO also call callbacks here I guess...
nuclear@3 226 void Widget::handle_event(const Event &ev)
nuclear@3 227 {
nuclear@3 228 switch(ev.type) {
nuclear@3 229 case EV_MOUSE_BUTTON:
nuclear@3 230 if(ev.button.press) {
nuclear@3 231 press();
nuclear@3 232 } else {
nuclear@3 233 if(is_pressed()) {
nuclear@3 234 on_click();
nuclear@3 235 }
nuclear@3 236 release();
nuclear@3 237 }
nuclear@3 238 on_mouse_button(ev.button);
nuclear@3 239 break;
nuclear@3 240
nuclear@3 241 case EV_MOUSE_MOTION:
nuclear@3 242 on_mouse_motion(ev.motion);
nuclear@3 243 break;
nuclear@3 244
nuclear@3 245 case EV_MOUSE_FOCUS:
nuclear@3 246 if(ev.focus.enter) {
nuclear@3 247 mousein();
nuclear@3 248 } else {
nuclear@3 249 mouseout();
nuclear@3 250 }
nuclear@3 251 on_mouse_focus(ev.focus);
nuclear@3 252 break;
nuclear@3 253
nuclear@3 254 case EV_KEY:
nuclear@3 255 on_key(ev.key);
nuclear@3 256 break;
nuclear@3 257
nuclear@3 258 default:
nuclear@3 259 fprintf(stderr, "%s: unknown event id: %d\n", __func__, ev.type);
nuclear@3 260 }
nuclear@3 261 }
nuclear@3 262
nuclear@3 263
nuclear@4 264 } // namespace goatkit