357 lines
9.2 KiB
C
357 lines
9.2 KiB
C
#include <rtgui/dc.h>
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#include <rtgui/rtgui.h>
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#include <rtgui/rtgui_system.h>
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#include <rtgui/widgets/notebook.h>
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#define RTGUI_NOTEBOOK_TAB_WIDTH 80
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struct rtgui_notebook_tab
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{
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struct rtgui_widget *widget;
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char *title;
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};
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static void _rtgui_notebook_get_bar_rect(struct rtgui_notebook *notebook, struct rtgui_rect* rect);
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static void _rtgui_notebook_get_page_rect(struct rtgui_notebook *notebook, struct rtgui_rect* rect);
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static void _rtgui_notebook_constructor(struct rtgui_notebook *notebook)
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{
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notebook->flag = 0;
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notebook->childs = RT_NULL;
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notebook->count = 0;
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notebook->current = 0;
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RTGUI_WIDGET(notebook)->gc.textalign = RTGUI_ALIGN_CENTER_HORIZONTAL | RTGUI_ALIGN_CENTER_VERTICAL;
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rtgui_object_set_event_handler(RTGUI_OBJECT(notebook), rtgui_notebook_event_handler);
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}
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static void _rtgui_notebook_destructor(struct rtgui_notebook *notebook)
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{
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int index;
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if (notebook->childs != RT_NULL)
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{
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for (index = 0; index < notebook->count; index ++)
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{
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rtgui_widget_destroy(notebook->childs[index].widget);
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rt_free(notebook->childs[index].title);
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}
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rtgui_free(notebook->childs);
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}
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}
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DEFINE_CLASS_TYPE(notebook, "notebook",
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RTGUI_WIDGET_TYPE,
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_rtgui_notebook_constructor,
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_rtgui_notebook_destructor,
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sizeof(struct rtgui_notebook));
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/* Draw tab bars of @param notebook. @param dc should be initialized and
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* finished outside this function. Don't pass @param notebook or @param dc as
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* RT_NULL, it should be checked outside.
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*/
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static void _rtgui_notebook_draw_bar(struct rtgui_notebook *notebook,
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struct rtgui_dc *dc)
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{
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struct rtgui_rect rect;
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int index;
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RT_ASSERT((notebook != RT_NULL) && (dc != RT_NULL));
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if (notebook->flag & RTGUI_NOTEBOOK_NOTAB)
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return;
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_rtgui_notebook_get_bar_rect(notebook, &rect);
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rtgui_dc_fill_rect(dc, &rect);
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rect.x2 = rect.x1 + RTGUI_NOTEBOOK_TAB_WIDTH;
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/* draw tab bar */
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for (index = 0; index < notebook->count; index++)
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{
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if (notebook->current == index)
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rtgui_dc_draw_border(dc, &rect, RTGUI_BORDER_SUNKEN);
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else
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rtgui_dc_draw_border(dc, &rect, RTGUI_BORDER_BOX);
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rtgui_dc_draw_text(dc, notebook->childs[index].title, &rect);
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rect.x1 += RTGUI_NOTEBOOK_TAB_WIDTH;
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rect.x2 += RTGUI_NOTEBOOK_TAB_WIDTH;
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}
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}
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static void _rtgui_notebook_ondraw(struct rtgui_notebook *notebook)
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{
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struct rtgui_dc* dc;
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dc = rtgui_dc_begin_drawing(RTGUI_WIDGET(notebook));
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if (dc == RT_NULL) return;
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if (notebook->count == 0)
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{
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rtgui_rect_t rect;
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rtgui_widget_get_rect(RTGUI_WIDGET(notebook), &rect);
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rtgui_dc_fill_rect(dc, &rect);
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}
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else
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{
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if (notebook->current == RTGUI_NOT_FOUND)
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notebook->current = 0;
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_rtgui_notebook_draw_bar(notebook, dc);
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/* draw current tab */
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rtgui_widget_update(notebook->childs[notebook->current].widget);
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}
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rtgui_dc_end_drawing(dc);
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}
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static void _rtgui_notebook_onmouse(struct rtgui_notebook *notebook, struct rtgui_event_mouse* emouse)
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{
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rtgui_rect_t rect;
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/* handle notebook bar */
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_rtgui_notebook_get_bar_rect(notebook, &rect);
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rtgui_widget_rect_to_device(RTGUI_WIDGET(notebook), &rect);
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if (rtgui_rect_contains_point(&rect, emouse->x, emouse->y) == RT_EOK)
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{
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int index;
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struct rtgui_dc* dc;
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index = (emouse->x - rect.x1) / RTGUI_NOTEBOOK_TAB_WIDTH;
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if (index < notebook->count && index != notebook->current)
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{
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/* update tab bar */
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dc = rtgui_dc_begin_drawing(RTGUI_WIDGET(notebook));
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if (dc == RT_NULL) return;
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rtgui_notebook_set_current_by_index(notebook, index);
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_rtgui_notebook_draw_bar(notebook, dc);
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rtgui_dc_end_drawing(dc);
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}
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}
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else
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{
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/* handle on page */
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if (RTGUI_OBJECT(notebook->childs[notebook->current].widget)->event_handler != RT_NULL)
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RTGUI_OBJECT(notebook->childs[notebook->current].widget)->event_handler(
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RTGUI_OBJECT(notebook->childs[notebook->current].widget),
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&(emouse->parent));
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}
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}
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static void _rtgui_notebook_get_page_rect(struct rtgui_notebook *notebook, struct rtgui_rect* rect)
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{
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RT_ASSERT(notebook != RT_NULL);
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RT_ASSERT(rect != RT_NULL);
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rtgui_widget_get_rect(RTGUI_WIDGET(notebook), rect);
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if (notebook->flag == RTGUI_NOTEBOOK_NOTAB)
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return;
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else if (notebook->flag == RTGUI_NOTEBOOK_TOP)
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rect->y1 = rect->y1 + 25;
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else if (notebook->flag == RTGUI_NOTEBOOK_BOTTOM)
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rect->y2 = rect->y2 - 25;
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}
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static void _rtgui_notebook_get_bar_rect(struct rtgui_notebook *notebook, struct rtgui_rect* rect)
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{
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RT_ASSERT(notebook != RT_NULL);
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RT_ASSERT(rect != RT_NULL);
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rtgui_widget_get_rect(RTGUI_WIDGET(notebook), rect);
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if (notebook->flag == RTGUI_NOTEBOOK_NOTAB)
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{
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rect->x1 = rect->y1 = rect->x2 = rect->y2 = 0;
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}
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else if (notebook->flag == RTGUI_NOTEBOOK_TOP)
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rect->y2 = rect->y1 + 25;
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else if (notebook->flag == RTGUI_NOTEBOOK_BOTTOM)
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rect->y1 = rect->y2 - 25;
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}
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struct rtgui_notebook* rtgui_notebook_create(const rtgui_rect_t* rect, rt_uint8_t style)
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{
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struct rtgui_notebook* notebook;
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notebook = (struct rtgui_notebook*) rtgui_widget_create(RTGUI_NOTEBOOK_TYPE);
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if (notebook != RT_NULL)
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{
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notebook->flag = style;
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rtgui_widget_set_rect(RTGUI_WIDGET(notebook), rect);
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}
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return notebook;
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}
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void rtgui_notebook_destroy(struct rtgui_notebook* notebook)
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{
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rtgui_widget_destroy(RTGUI_WIDGET(notebook));
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}
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void rtgui_notebook_add(struct rtgui_notebook* notebook, const char* label, struct rtgui_widget* child)
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{
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rtgui_rect_t rect;
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RT_ASSERT(notebook != RT_NULL);
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notebook->count += 1;
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notebook->childs = (struct rtgui_notebook_tab*)
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rtgui_realloc(notebook->childs,
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sizeof(struct rtgui_notebook_tab) * notebook->count);
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notebook->childs[notebook->count - 1].title = rt_strdup(label);
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notebook->childs[notebook->count - 1].widget = child;
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/* set parent */
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rtgui_widget_set_parent(child, RTGUI_WIDGET(notebook));
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_rtgui_notebook_get_page_rect(notebook, &rect);
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rtgui_widget_rect_to_device(RTGUI_WIDGET(notebook), &rect);
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rtgui_widget_set_rect(child, &rect);
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if (notebook->count - 1 != notebook->current)
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rtgui_widget_hide(child);
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}
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void rtgui_notebook_remove(struct rtgui_notebook* notebook, rt_uint16_t index)
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{
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struct rtgui_notebook_tab tab;
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RT_ASSERT(notebook != RT_NULL);
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if (index < notebook->count)
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{
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if (notebook->count == 1)
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{
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tab = notebook->childs[0];
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rtgui_free(notebook->childs);
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notebook->childs = RT_NULL;
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notebook->count = 0;
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}
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else
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{
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tab = notebook->childs[index];
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for (;index < notebook->count - 1; index ++)
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{
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notebook->childs[index] = notebook->childs[index + 1];
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}
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notebook->count -= 1;
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notebook->childs = (struct rtgui_notebook_tab*) rtgui_realloc(notebook->childs,
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sizeof(struct rtgui_notebook_tab) * notebook->count);
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}
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// FIXME: do we really want to destroy it?
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rtgui_widget_destroy(tab.widget);
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rtgui_free(tab.title);
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if (notebook->current == index)
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{
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/* update tab */
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if (notebook->current > notebook->count - 1)
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notebook->current = notebook->count - 1;
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rtgui_widget_update(RTGUI_WIDGET(notebook));
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}
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}
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}
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int rtgui_notebook_get_count(struct rtgui_notebook* notebook)
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{
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RT_ASSERT(notebook != RT_NULL);
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return notebook->count;
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}
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struct rtgui_widget* rtgui_notebook_get_current(struct rtgui_notebook* notebook)
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{
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RT_ASSERT(notebook != RT_NULL);
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if (notebook->current != RTGUI_NOT_FOUND)
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return notebook->childs[notebook->current].widget;
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return RT_NULL;
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}
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rt_int16_t rtgui_notebook_get_current_index(struct rtgui_notebook* notebook)
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{
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RT_ASSERT(notebook != RT_NULL);
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return notebook->current;
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}
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void rtgui_notebook_set_current(struct rtgui_notebook* notebook, struct rtgui_widget* widget)
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{
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rt_int16_t index;
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RT_ASSERT(notebook != RT_NULL);
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for (index = 0; index < notebook->count; index ++)
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{
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if (widget == notebook->childs[index].widget)
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{
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rtgui_notebook_set_current_by_index(notebook, index);
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return;
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}
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}
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}
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void rtgui_notebook_set_current_by_index(struct rtgui_notebook* notebook, rt_uint16_t index)
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{
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RT_ASSERT(notebook != RT_NULL);
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if ((index < notebook->count) && (notebook->current != index))
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{
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if (notebook->current != RTGUI_NOT_FOUND)
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rtgui_widget_hide(notebook->childs[notebook->current].widget);
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notebook->current = index;
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rtgui_widget_show(notebook->childs[notebook->current].widget);
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rtgui_widget_update(notebook->childs[notebook->current].widget);
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}
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}
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struct rtgui_widget* rtgui_notebook_get_widget_at(struct rtgui_notebook* notebook, rt_uint16_t index)
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{
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RT_ASSERT(notebook != RT_NULL);
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if (index < notebook->count)
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return notebook->childs[index].widget;
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return RT_NULL;
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}
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rt_bool_t rtgui_notebook_event_handler(struct rtgui_object* object, struct rtgui_event* event)
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{
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struct rtgui_notebook* notebook;
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RT_ASSERT(object != RT_NULL);
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RT_ASSERT(event != RT_NULL);
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notebook = RTGUI_NOTEBOOK(object);
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switch (event->type)
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{
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case RTGUI_EVENT_PAINT:
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_rtgui_notebook_ondraw(notebook);
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break;
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case RTGUI_EVENT_MOUSE_BUTTON:
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_rtgui_notebook_onmouse(notebook, (struct rtgui_event_mouse*)event);
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break;
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case RTGUI_EVENT_KBD:
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if (notebook->current != RTGUI_NOT_FOUND)
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{
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if (RTGUI_OBJECT(notebook->childs[notebook->current].widget
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)->event_handler != RT_NULL)
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return RTGUI_OBJECT(notebook->childs[notebook->current].widget
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)->event_handler(
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RTGUI_OBJECT(notebook->childs[notebook->current].widget),
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event);
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}
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break;
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default:
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/* use parent event handler */
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return rtgui_widget_event_handler(object, event);
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}
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return RT_FALSE;
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}
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