diff options
Diffstat (limited to 'components/rtgui_win/widgets/slider.c')
| -rw-r--r-- | components/rtgui_win/widgets/slider.c | 229 |
1 files changed, 229 insertions, 0 deletions
diff --git a/components/rtgui_win/widgets/slider.c b/components/rtgui_win/widgets/slider.c new file mode 100644 index 0000000000..f29653945f --- /dev/null +++ b/components/rtgui_win/widgets/slider.c @@ -0,0 +1,229 @@ +#include <rtgui/dc.h>
+#include <rtgui/rtgui_theme.h>
+#include <rtgui/widgets/slider.h>
+
+#define RTGUI_SLIDER_DEFAULT_WIDTH 100
+#define RTGUI_SLIDER_DEFAULT_HEIGHT 20
+#define RTGUI_SLIDER_DEFAULT_MIN 0
+#define RTGUI_SLIDER_DEFAULT_MAX 100
+
+static void _rtgui_slider_constructor(rtgui_slider_t *slider)
+{
+ rtgui_rect_t rect = {0, 0, RTGUI_SLIDER_DEFAULT_WIDTH, RTGUI_SLIDER_DEFAULT_HEIGHT};
+
+ /* init widget and set event handler */
+ RTGUI_WIDGET_FLAG(slider) |= RTGUI_WIDGET_FLAG_FOCUSABLE;
+ rtgui_widget_set_rect(slider, &rect);
+ rtgui_widget_set_event_handler(slider, rtgui_slider_event_handler);
+
+ /* set proper of control */
+ slider->min = RTGUI_SLIDER_DEFAULT_MIN;
+ slider->max = RTGUI_SLIDER_DEFAULT_MAX;
+ slider->value = RTGUI_SLIDER_DEFAULT_MIN;
+ slider->orient = RTGUI_HORIZONTAL;
+
+ slider->ticks = 10;
+ slider->thumb_width = 6;
+}
+
+static void _rtgui_slider_destructor(rtgui_slider_t *slider)
+{
+
+}
+
+rtgui_type_t *rtgui_slider_type_get(void)
+{
+ static rtgui_type_t *slider_type = RT_NULL;
+
+ if(!slider_type)
+ {
+ slider_type = rtgui_type_create("slider", RTGUI_WIDGET_TYPE,
+ sizeof(rtgui_slider_t),
+ RTGUI_CONSTRUCTOR(_rtgui_slider_constructor),
+ RTGUI_DESTRUCTOR(_rtgui_slider_destructor));
+ }
+
+ return slider_type;
+}
+
+static void rtgui_slider_onmouse(rtgui_slider_t* slider, rtgui_event_mouse_t* event)
+{
+ RT_ASSERT(slider != RT_NULL);
+ RT_ASSERT(event != RT_NULL);
+
+ if(event->button & RTGUI_MOUSE_BUTTON_DOWN &&
+ event->button & RTGUI_MOUSE_BUTTON_LEFT)
+ {
+ int sel;
+ int range = slider->max - slider->min;
+ int x0, xsize;
+ int x;
+ x0 = 1 + slider->thumb_width/2;
+
+ if(slider->orient == RTGUI_VERTICAL)
+ {
+ x = event->y - RTGUI_WIDGET(slider)->extent.y1;
+ x -= x0;
+ xsize = rtgui_rect_height(RTGUI_WIDGET(slider)->extent) - 2 * x0;
+ }
+ else
+ {
+ x = event->x - RTGUI_WIDGET(slider)->extent.x1;
+ x -= x0;
+ xsize = rtgui_rect_width(RTGUI_WIDGET(slider)->extent) - 2 * x0;
+ }
+
+ if(x <= 0)
+ {
+ sel = slider->min;
+ }
+ else if(x >= xsize)
+ {
+ sel = slider->max;
+ }
+ else
+ {
+ sel = ((range * x) + xsize/2) / xsize;
+ sel += slider->min;
+ }
+
+ rtgui_widget_focus(slider);
+ rtgui_slider_set_value(slider, sel);
+ }
+}
+
+static void rtgui_slider_onkey(rtgui_slider_t* slider, rtgui_event_kbd_t *event)
+{
+ RT_ASSERT(slider != RT_NULL);
+ RT_ASSERT(event != RT_NULL);
+
+ if(!(RTGUI_KBD_IS_UP(event))) return;
+
+ if(event->key == RTGUIK_LEFT)
+ {
+ if(slider->value > slider->min)
+ slider->value ++;
+ }
+
+ if(event->key == RTGUIK_RIGHT)
+ {
+ if(slider->value < slider->max)
+ slider->value --;
+ }
+
+ /* update widget */
+ rtgui_widget_update(slider);
+}
+
+rt_bool_t rtgui_slider_event_handler(PVOID wdt, rtgui_event_t* event)
+{
+ rtgui_widget_t *widget = (rtgui_widget_t*)wdt;
+ rtgui_slider_t* slider = (rtgui_slider_t*)widget;
+
+ switch (event->type)
+ {
+ case RTGUI_EVENT_PAINT:
+ if(widget->on_draw != RT_NULL) widget->on_draw(widget, event);
+ else
+ {
+ rtgui_theme_draw_slider(slider);
+ }
+
+ break;
+
+ case RTGUI_EVENT_KBD:
+ if(widget->on_key != RT_NULL) widget->on_key(widget, event);
+ else
+ {
+ rtgui_slider_onkey(slider, (rtgui_event_kbd_t *)event);
+ }
+ break;
+
+ case RTGUI_EVENT_MOUSE_BUTTON:
+ if(widget->on_mouseclick != RT_NULL) widget->on_mouseclick(widget, event);
+ else
+ {
+ rtgui_slider_onmouse(slider, (rtgui_event_mouse_t*)event);
+ }
+ break;
+ }
+
+ return RT_FALSE;
+}
+
+//����һ��������ؼ�
+rtgui_slider_t* rtgui_slider_create(PVOID parent, rt_size_t min, rt_size_t max, int left, int top, int w, int h, int orient)
+{
+ rtgui_slider_t* slider;
+
+ RT_ASSERT(parent != RT_NULL);
+
+ slider = rtgui_widget_create (RTGUI_SLIDER_TYPE);
+ if(slider != RT_NULL)
+ {
+ rtgui_rect_t rect;
+
+ /* set proper of control */
+ slider->min = min;
+ slider->max = max;
+ slider->value = min;
+
+ slider->ticks = 10;
+ slider->thumb_width = 6;//�����߿���
+
+ rtgui_slider_set_orientation(slider, orient);
+
+ rtgui_widget_get_rect(parent, &rect);
+ rtgui_widget_rect_to_device(parent,&rect);
+ rect.x1 += left;
+ rect.y1 += top;
+ rect.x2 = rect.x1+w;
+ rect.y2 = rect.y1+h;
+ rtgui_widget_set_rect(slider, &rect);
+ }
+
+ return slider;
+}
+
+void rtgui_slider_destroy(rtgui_slider_t* slider)
+{
+ rtgui_widget_destroy(slider);
+}
+
+void rtgui_slider_set_range(rtgui_slider_t* slider, rt_size_t min, rt_size_t max)
+{
+ RT_ASSERT(slider != RT_NULL);
+
+ slider->max = max;
+ slider->min = min;
+}
+
+void rtgui_slider_set_value(rtgui_slider_t* slider, rt_size_t value)
+{
+ RT_ASSERT(slider != RT_NULL);
+
+ if(value < slider->min) value = slider->min;
+ if(value > slider->max) value = slider->max;
+
+ if(slider->value != value)
+ {
+ slider->value = value;
+ rtgui_theme_draw_slider(slider);
+ }
+}
+
+//����Ŀ�귽��
+void rtgui_slider_set_orientation(rtgui_slider_t* slider, int orient)
+{
+ RT_ASSERT(slider != RT_NULL);
+
+ /* set orient */
+ slider->orient = orient;
+}
+
+rt_size_t rtgui_slider_get_value(rtgui_slider_t* slider)
+{
+ RT_ASSERT(slider != RT_NULL);
+
+ return slider->value;
+}
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