From 14770f42df291753a240def91fb488a904a909c1 Mon Sep 17 00:00:00 2001 From: dec05eba Date: Thu, 2 Dec 2021 14:20:48 +0100 Subject: Initial commit, set up skeleton with list and button --- src/mgui/button.c | 55 ++++++++++++++++++++++++++++++++++++++++++++++ src/mgui/list.c | 65 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ src/mgui/widget.c | 48 ++++++++++++++++++++++++++++++++++++++++ 3 files changed, 168 insertions(+) create mode 100644 src/mgui/button.c create mode 100644 src/mgui/list.c create mode 100644 src/mgui/widget.c (limited to 'src/mgui') diff --git a/src/mgui/button.c b/src/mgui/button.c new file mode 100644 index 0000000..d8d0c58 --- /dev/null +++ b/src/mgui/button.c @@ -0,0 +1,55 @@ +#include "../../include/mgui/button.h" +#include "../../include/resource_loader.h" +#include "../../include/common.h" +#include "../../include/alloc.h" +#include +#include +#include + +mgui_button* mgui_button_create() { + mgui_button *button = mgui_alloc(sizeof(mgui_button)); + mgui_widget_init(&button->widget, MGUI_WIDGET_BUTTON); + button->background.position = (mgl_vec2f){ 0.0f, 0.0f }; + button->background.size = (mgl_vec2f){ 0.0f, 0.0f }; + button->background.color = (mgl_color){ 45, 45, 45, 255 }; + mgl_text_init(&button->label, mgui_get_font(MGUI_FONT_LATIN, 32), "Label", 5); + return button; +} + +mgui_widget* mgui_button_to_widget(mgui_button *list) { + return &list->widget; +} + +mgui_button* mgui_widget_to_button(mgui_widget *widget) { + assert(widget->type == MGUI_WIDGET_BUTTON); + return (mgui_button*)widget; +} + +void mgui_button_set_position(mgui_button *self, mgl_vec2i position) { + const mgl_vec2f position_f = (mgl_vec2f){ position.x, position.y }; + self->background.position = position_f; + mgl_text_set_position(&self->label, position_f); +} + +void mgui_button_on_event(mgui_button *self, mgl_window *window, mgl_event *event) { + // TODO: Implement + (void)window; + if(event->type == MGL_EVENT_MOUSE_MOVED) { + if(mgui_rectangle_contains(self->background.position, self->background.size, (mgl_vec2f){ event->mouse_move.x, event->mouse_move.y })) { + self->background.color = (mgl_color){ 70, 70, 70, 255 }; + } else { + self->background.color = (mgl_color){ 45, 45, 45, 255 }; + } + } else if(event->type == MGL_EVENT_MOUSE_BUTTON_PRESSED && event->mouse_button.button == MGL_BUTTON_LEFT) { + if(mgui_rectangle_contains(self->background.position, self->background.size, (mgl_vec2f){ event->mouse_button.x, event->mouse_button.y })) { + + } + } +} + +void mgui_button_draw(mgui_button *self, mgl_window *window) { + (void)window; + self->background.size = mgl_text_get_bounds(&self->label); + mgl_rectangle_draw(mgl_get_context(), &self->background); + mgl_text_draw(mgl_get_context(), &self->label); +} diff --git a/src/mgui/list.c b/src/mgui/list.c new file mode 100644 index 0000000..8dc4283 --- /dev/null +++ b/src/mgui/list.c @@ -0,0 +1,65 @@ +#include "../../include/mgui/list.h" +#include "../../include/alloc.h" +#include +#include + +mgui_list* mgui_list_create(mgui_list_direction direction) { + mgui_list *list = mgui_alloc(sizeof(mgui_list)); + mgui_widget_init(&list->widget, MGUI_WIDGET_LIST); + list->direction = direction; + list->position = (mgl_vec2i){ 0, 0 }; + list->items = NULL; + list->num_items = 0; + list->items_capacity = 0; + return list; +} + +mgui_widget* mgui_list_to_widget(mgui_list *list) { + return &list->widget; +} + +mgui_list* mgui_widget_to_list(mgui_widget *widget) { + assert(widget->type == MGUI_WIDGET_LIST); + return (mgui_list*)widget; +} + +void mgui_list_set_position(mgui_list *self, mgl_vec2i position) { + self->position = position; +} + +static void mgui_list_ensure_capacity(mgui_list *self, size_t new_capacity) { + if(self->items_capacity >= new_capacity) + return; + + size_t capacity = self->items_capacity; + if(capacity == 0) + capacity = 8; + + while(capacity < new_capacity) { + capacity = capacity + (capacity >> 1); /* capacity *= 1.5 */ + } + + self->items = mgui_realloc(self->items, capacity); + self->items_capacity = capacity; +} + +void mgui_list_append(mgui_list *self, mgui_widget *widget) { + mgui_list_ensure_capacity(self, (self->num_items + 1) * sizeof(mgui_widget*)); + self->items[self->num_items] = widget; + ++self->num_items; +} + +void mgui_list_on_event(mgui_list *self, mgl_window *window, mgl_event *event) { + for(size_t i = 0; i < self->num_items; ++i) { + mgui_widget_on_event(self->items[i], window, event); + } +} + +void mgui_list_draw(mgui_list *self, mgl_window *window) { + mgl_context *context = mgl_get_context(); + context->gl.glTranslatef(self->position.x, self->position.y, 0.0f); + for(size_t i = 0; i < self->num_items; ++i) { + mgui_widget_draw(self->items[i], window); + } + context->gl.glLoadIdentity(); /* TODO: Remove, but what about glRotatef above */ +} diff --git a/src/mgui/widget.c b/src/mgui/widget.c new file mode 100644 index 0000000..242174d --- /dev/null +++ b/src/mgui/widget.c @@ -0,0 +1,48 @@ +#include "../../include/mgui/widget.h" +#include "../../include/mgui/list.h" +#include "../../include/mgui/button.h" + +void mgui_widget_init(mgui_widget *self, mgui_widget_type type) { + self->type = type; + mgui_widget_set_margin(self, 0, 0, 0, 0); +} + +void mgui_widget_set_margin(mgui_widget *self, int left, int top, int right, int bottom) { + self->margin.left = left; + self->margin.top = top; + self->margin.right = right; + self->margin.bottom = bottom; +} + +void mgui_widget_set_position(mgui_widget *self, mgl_vec2i position) { + switch(self->type) { + case MGUI_WIDGET_LIST: + mgui_list_set_position(mgui_widget_to_list(self), position); + break; + case MGUI_WIDGET_BUTTON: + mgui_button_set_position(mgui_widget_to_button(self), position); + break; + } +} + +void mgui_widget_on_event(mgui_widget *self, mgl_window *window, mgl_event *event) { + switch(self->type) { + case MGUI_WIDGET_LIST: + mgui_list_on_event(mgui_widget_to_list(self), window, event); + break; + case MGUI_WIDGET_BUTTON: + mgui_button_on_event(mgui_widget_to_button(self), window, event); + break; + } +} + +void mgui_widget_draw(mgui_widget *self, mgl_window *window) { + switch(self->type) { + case MGUI_WIDGET_LIST: + mgui_list_draw(mgui_widget_to_list(self), window); + break; + case MGUI_WIDGET_BUTTON: + mgui_button_draw(mgui_widget_to_button(self), window); + break; + } +} -- cgit v1.2.3