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- #include "zori.h"
- #include "zori_widget.h"
- #include "zori_registry.h"
- #include "zori_style.h"
- #include "zori_screen.h"
- #include "monolog.h"
- #include "draw.h"
- /** Returns whether or not a widget will even handle an event in the first place.
- * For example, a hidden widget won't draw, and a disabled widget won't
- * accept any system events, and a NULL widget doesn't accept events at all.. */
- int zori_widget_accepts_event(struct zori_widget * widget, union zori_event * event) {
- if (!widget) return 0;
- switch(event->any.type) {
- case ZORI_EVENT_DRAW:
- return zori_widget_visible(widget);
- default:
- return zori_widget_active(widget);
- }
- }
- /** Raises an event on the widget itself only. */
- int zori_widget_self_raise_event(struct zori_widget * widget,
- union zori_event * event) {
- enum zori_handle_result result;
- if (zori_widget_accepts_event(widget, event)) {
- event->any.widget = widget;
- return zori_handlers_handle(&widget->handlers, event);
- }
- /* If the event is not accepted, it is passed on to the child widgets. */
- return ZORI_HANDLE_PASS;
- }
- /* Raises an event on the widget, and if necessary, propagates it on to it's
- * children automatically and recursively. */
- int
- zori_widget_raise_event(struct zori_widget * widget, union zori_event * event) {
- if (!widget) return ZORI_HANDLE_DONE;
-
- enum zori_handle_result result =
- zori_widget_self_raise_event(widget, event);
-
- if (zori_propagate_event_p(result)) {
- enum zori_handle_result sub;
- size_t index;
- for (index = 0; index < miao_size(&widget->children); index++) {
- struct zori_widget * child = miao_unsafe_get(&widget->children, index);
- event->any.widget = child;
- sub = zori_widget_raise_event(child, event);
- if (sub == ZORI_HANDLE_DONE) {
- result = ZORI_HANDLE_DONE;
- break;
- }
- }
- }
- return result;
- }
- int zori_widget_raise_system_event
- (struct zori_widget * widget, zori_system_event * sysev) {
- union zori_event event;
- event.sys.any.type = sysev->type;
- event.sys.any.widget = widget;
- event.sys.ev = sysev;
- return zori_widget_raise_event(widget, &event);
- }
- int zori_widget_raise_draw_event(struct zori_widget * widget) {
- union zori_event event;
- event.draw.any.type = ZORI_EVENT_DRAW;
- event.draw.any.widget = widget;
- return zori_widget_raise_event(widget, &event);
- }
- int zori_widget_raise_overdraw_event(struct zori_widget * widget) {
- union zori_event event;
- event.draw.any.type = ZORI_EVENT_OVERDRAW;
- event.draw.any.widget = widget;
- return zori_widget_raise_event(widget, &event);
- }
- int zori_widget_raise_done_event(struct zori_widget * widget) {
- union zori_event event;
- event.done.any.type = ZORI_EVENT_DONE;
- event.done.any.widget = widget;
- return zori_widget_raise_event(widget, &event);
- }
- int zori_widget_raise_free_event(struct zori_widget * widget) {
- union zori_event event;
- event.free.any.type = ZORI_EVENT_FREE;
- event.free.any.widget = widget;
- return zori_widget_raise_event(widget, &event);
- }
- int zori_widget_raise_update_event
- (struct zori_widget * widget, double dt) {
- union zori_event event;
- event.update.any.type = ZORI_EVENT_DONE;
- event.update.any.widget = widget;
- event.update.dt = dt;
- return zori_widget_raise_event(widget, &event);
- }
- int zori_widget_raise_action_event
- (struct zori_widget * widget) {
- union zori_event event;
- event.action.any.type = ZORI_EVENT_ACTION;
- event.action.any.widget = widget;
- return zori_widget_raise_event(widget, &event);
- }
- int zori_widget_raise_close_event
- (struct zori_widget * widget, struct zori_widget * from) {
- union zori_event event;
- event.close.any.type = ZORI_EVENT_CLOSE;
- event.close.any.widget = widget;
- event.close.from = from;
- return zori_widget_raise_event(widget, &event);
- }
- int zori_widget_compare(const void * v1, const void * v2) {
- const struct zori_widget * w1 = v1, * w2 = v2;
- return (w2->id - w1->id);
- }
- struct zori_handler * zori_widget_add_handler
- (struct zori_widget * widget, zori_event_type type, zori_handler_func * handler, void * data) {
- if ((!widget) || (!handler)) return NULL;
-
- return zori_handlers_add(&widget->handlers, type, handler, data);
- }
- struct zori_handler * zori_widget_add_handlers
- (struct zori_widget * widget, struct zori_handler * handlers, size_t amount) {
- size_t i;
- for (i = 0; i < amount; i++) {
- struct zori_handler * handler = handlers + i;
- if (!zori_widget_add_handler(widget, handler->type, handler->handler, handler->data)) return NULL;
- }
- return handlers + amount - 1;
- }
- void zori_widget_free(struct zori_widget * widget);
- struct zori_widget * zori_widget_done(struct zori_widget * widget) {
- size_t index;
- struct zori_widget * aid, * next;
- if (!widget) return widget;
-
- for (index = 0; index < miao_size(&widget->children); index ++) {
- struct zori_widget * child = miao_unsafe_get(&widget->children, index);
- zori_widget_free(child);
- }
-
- if (widget->destroy) {
- widget->destroy(widget);
- }
-
- miao_done(&widget->handlers);
- miao_done(&widget->children);
-
- return widget;
- }
- void zori_widget_free(struct zori_widget * widget) {
- if (widget) {
- zori_registry_remove(zori_get_registry(), widget->id);
- }
- zori_widget_done(widget);
- free(widget);
- }
- struct zori_widget *
- zori_widget_add_child(struct zori_widget * parent, struct zori_widget * child) {
- if (parent) {
- miao_push((&parent->children), child);
- child->parent = parent;
- }
- return child;
- }
- zori_id
- zori_widget_margins_(struct zori_widget * widget, int left, int top, int right, int bottom) {
- if (!widget) return ZORI_ID_EINVAL;
- widget->outer = widget->box;
- widget->outer.at.x -= left;
- widget->outer.at.y -= top;
- widget->outer.size.x += (left + right);
- widget->outer.size.y += (top + bottom);
- return widget->id;
- }
- zori_id
- zori_widget_margin_(struct zori_widget * widget, int size) {
- return zori_widget_margins_(widget, size, size, size, size);
- }
- /* Draws a widget's frame based on it's style. If the background bitmap is set
- * then that is used, otherwise, the background color is used, including a border
- * if needed. */
- void zori_widget_draw_background(struct zori_widget * widget) {
- float dx, dy, dw, dh;
- struct zori_style * style = &widget->style;
- zori_bitmap * background = style->back.bitmap;
- zori_color color = style->back.color;
- struct zori_stylepart * part = & style->back;
- dx = rebox_x(&widget->box);
- dy = rebox_y(&widget->box);
- dw = rebox_w(&widget->box);
- dh = rebox_h(&widget->box);
-
- if (zori_widget_hover(widget)) {
- part = &style->hover;
- }
-
- if (zori_widget_marked(widget)) {
- part = &style->mark;
- }
-
- if (part->bitmap) {
- background = part->bitmap;
- }
-
- color = part->color;
- if (background) {
- image_blitscale9(background, dx, dy, dw, dh, -1, -1);
- } else {
- draw_frame(dx, dy, dw, dh, 3, style->border.color, color);
- }
- }
- int zori_widget_visible(struct zori_widget * widget) {
- return widget && ((widget->flags & ZORI_FLAG_HIDDEN) != ZORI_FLAG_HIDDEN);
- }
- int zori_widget_active(struct zori_widget * widget) {
- return widget && ((widget->flags & ZORI_FLAG_DISABLED) != ZORI_FLAG_DISABLED);
- }
- int zori_widget_active_(struct zori_widget * widget, int set) {
- if (set) {
- widget->flags = widget->flags & (~ZORI_FLAG_DISABLED);
- } else {
- widget->flags = widget->flags | ZORI_FLAG_DISABLED;
- }
- return zori_widget_active(widget);
- }
- int zori_widget_visible_(struct zori_widget * widget, int set) {
- if (set) {
- widget->flags = widget->flags & (~ZORI_FLAG_HIDDEN);
- } else {
- widget->flags = widget->flags | ZORI_FLAG_HIDDEN;
- }
- return zori_widget_active(widget);
- }
- int zori_widget_hover(struct zori_widget * widget) {
- return widget && ((widget->flags & ZORI_FLAG_HOVERED) == ZORI_FLAG_HOVERED);
- }
- int zori_widget_hover_(struct zori_widget * widget, int set) {
- if (set) {
- widget->flags = widget->flags | ZORI_FLAG_HOVERED;
- } else {
- widget->flags = widget->flags & (~ZORI_FLAG_HOVERED);
- }
- return zori_widget_hover(widget);
- }
- int zori_widget_marked(struct zori_widget * widget) {
- return widget && ((widget->flags & ZORI_FLAG_MARKED) == ZORI_FLAG_MARKED);
- }
- int zori_widget_marked_(struct zori_widget * widget, int set) {
- if (set) {
- widget->flags = widget->flags | ZORI_FLAG_MARKED;
- } else {
- widget->flags = widget->flags & (~ZORI_FLAG_MARKED);
- }
- return zori_widget_hover(widget);
- }
- int zori_xy_inside_widget_p(struct zori_widget * widget, double x, double y) {
- return (rebox_coordinates_inside_p(&widget->box, x, y));
- }
- /* Registers an event handler for a widget. */
- zori_id zori_register(zori_id id, zori_event_type type, zori_handler_func handler, void * extra);
- zori_font * zori_widget_font(struct zori_widget * widget) {
- return widget->style.text.font;
- }
- zori_color zori_widget_forecolor(struct zori_widget * widget) {
- return widget->style.text.color;
- }
- zori_color zori_widget_backcolor(struct zori_widget * widget) {
- return widget->style.back.color;
- }
- int zori_widget_h(struct zori_widget * widget) {
- return widget->box.size.y;
- }
- int zori_widget_w(struct zori_widget * widget) {
- return widget->box.size.x;
- }
- int zori_widget_x(struct zori_widget * widget) {
- return widget->box.at.x;
- }
- int zori_widget_y(struct zori_widget * widget) {
- return widget->box.at.y;
- }
- /* Gets amount of child widgets of this widget, 0 if none, -1 on error.*/
- int zori_widget_count_children(struct zori_widget * widget) {
- if (!widget) return -1;
- return miao_size(&widget->children);
- }
- /* Returns the index-th child of his widget, or NULL on error or if no such child exists. */
- struct zori_widget * zori_widget_get_child(struct zori_widget * widget, int index) {
- int count = zori_widget_count_children(widget);
- if (count < 1) return NULL;
- if (index < 0) return NULL;
- if (index >= count) return NULL;
- return miao_unsafe_get(&widget->children, index);
- }
- zori_id
- zori_widget_paddings_(struct zori_widget * widget, int left, int top, int right, int bottom) {
- if (!widget) return ZORI_ID_EINVAL;
- widget->inner = widget->box;
- widget->inner.at.x += left;
- widget->inner.at.y += top;
- widget->inner.size.x -= (left + right);
- widget->inner.size.y -= (top + bottom);
- return widget->id;
- }
- zori_id
- zori_widget_padding_(struct zori_widget * widget, int size) {
- return zori_widget_paddings_(widget, size, size, size, size);
- }
- zori_font * zori_widget_text_font(struct zori_widget * widget) {
- struct zori_style * style;
- if (!widget) {
- style = zori_get_default_style();
- } else {
- style = & widget->style;
- }
- return style->text.font;
- }
- struct zori_widget * zori_widget_init
- ( struct zori_widget * widget,
- zori_widget_type type,
- zori_id id,
- struct zori_widget * parent,
- zori_rebox * box, struct zori_style * style) {
- if (!widget) return NULL;
- struct zori_style * default_style = zori_get_default_style();
-
- miao_init(&widget->children);
- miao_init(&widget->handlers);
- widget->destroy = NULL;
- widget->z = 0;
- widget->flags = 0;
- widget->type = type;
- widget->id = ( (id < 0) ? zori_get_unused_id() : id);
-
- if (style) {
- widget->style = *style;
- if (!widget->style.text.font) {
- widget->style.text.font = default_style->text.font;
- }
- } else {
- widget->style = *default_style;
- }
- if (box) {
- widget->box = *box;
- } else if (parent) {
- widget->box = parent->box;
- } else {
- widget->box = rebox_make(0, 0, ZORI_WIDGET_DEFAULT_W, ZORI_WIDGET_DEFAULT_H);
- }
-
- zori_widget_margin_(widget, ZORI_MARGIN_DEFAULT);
- zori_widget_padding_(widget, ZORI_PADDING_DEFAULT);
-
- zori_widget_add_child(parent, widget);
- zori_registry_add(zori_get_registry(), widget->id, widget);
- return widget;
- }
- struct zori_widget *
- zori_widget_initall(struct zori_widget * widget, zori_widget_type type, int id,
- struct zori_widget * parent, zori_rebox * box, struct zori_style * style,
- struct zori_handler * handlers, size_t amount) {
- if (zori_widget_init(widget, type, id, parent, box, style)) {
- zori_widget_add_handlers(widget, handlers, amount);
- }
- return widget;
- }
- /* Lets the widget handle an event and bubbles it on to it's children
- * recursively depending on the need to do that. */
- void zori_widget_handle_event(struct zori_widget * widget, union zori_event * event) {
- zori_widget_raise_event(widget, event);
- }
- /* Returns the first parent or super-parent of this widget for which
- * predicate() returns true.
- */
- struct zori_widget *
- zori_widget_find_parent(struct zori_widget * widget,
- bool (*predicate)(struct zori_widget * parent, void * extra),
- void * extra
- ) {
- struct zori_widget * parent;
-
- if (!widget) return NULL;
- parent = widget->parent;
- while (parent) {
- if (predicate(parent, extra)) return parent;
- if (parent == parent->parent) {
- LOG_ERROR("GUI setup not correct. Parent/child loop in widget %p.", widget);
- return NULL;
- }
- parent = parent->parent;
- }
- return NULL;
- }
- bool zori_widget_is_type(struct zori_widget * widget, zori_widget_type type) {
- if(!widget) return false;
- return (type) == widget->type;
- }
- bool zori_widget_is_type_predicate(struct zori_widget * widget, void * extra) {
- zori_widget_type * type_ptr = extra;
- if(!type_ptr) return false;
- return zori_widget_is_type(widget, (*type_ptr));
- }
- struct zori_widget *
- zori_widget_get_parent_of_type(struct zori_widget * widget,
- zori_widget_type type) {
- return zori_widget_find_parent(widget, zori_widget_is_type_predicate, &type);
- }
- struct zori_screen * zori_widget_get_screen(struct zori_widget * widget) {
- struct zori_widget * screen_widget = zori_widget_get_parent_of_type(widget, ZORI_WIDGET_TYPE_SCREEN);
- return zori_widget_to_screen(screen_widget);
- }
- int zori_mark_widget(struct zori_widget * widget) {
- struct zori_screen * screen = zori_widget_get_screen(widget);
- if (screen) {
- screen->cursors.keyjoy.p = widget->box.at;
- }
- return ZORI_HANDLE_DONE;
- }
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