alema/ugui.c3l
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This commit is contained in:
Alessandro Mauri 2022-12-23 00:18:04 +01:00
parent e8c7a65f52
commit 29af23992e
2 changed files with 145 additions and 19 deletions
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51
ugui.h
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@ -24,6 +24,30 @@ typedef enum {
UG_UNIT_PT,
} ug_unit_t;
// element type
typedef struct {
ug_id_t id;
unsigned int type;
ug_rect_t rect, rca;
char *name, *content;
} ug_element_t;
enum {
UG_ELEM_BUTTON, // button
UG_ELEM_TXTBTN, // textual button, a button but without frame
UG_ELEM_CHECK, // checkbox
UG_ELEM_RADIO, // radio button
UG_ELEM_TOGGLE, // toggle button
UG_ELEM_LABEL, // simple text
UG_ELEM_UPDOWN, // text with two buttons up and down
UG_ELEM_TEXTINPUT, // text input box
UG_ELEM_TEXTBOX, // text surrounded by a box
UG_ELEM_IMG, // image, icon
UG_ELEM_SPACE, // takes up space
};
// container type, a container is an entity that contains layouts, a container has
// a haight a width and their maximum values, in essence a container is a rectangular
// area that can be resized and sits somewhere on the drawable region
@ -35,6 +59,10 @@ typedef struct {
// absolute position rect
ug_rect_t rca;
unsigned int flags;
// layouting and elements
ug_rect_t orig; // origin and space available
int r, c; // row and column
UG_STACK(ug_element_t);
} ug_container_t;
// the container flags
@ -55,6 +83,8 @@ enum {
CNT_STATE_RESIZE_L = BIT(26),
CNT_STATE_RESIZE_R = BIT(25),
CNT_STATE_DELETE = BIT(24), // The container is marked for removal
// layouting
CNT_LAYOUT_COLUMN = BIT(23),
};
// style, defines default height, width, color, margins, borders, etc
@ -174,6 +204,8 @@ typedef struct {
ug_id_t cnt, elem;
} last_active;
// id of the selected container, used for layout
// NOTE: since the stacks can be relocated with realloc it is better not
// to use a pointer here, even tough it would be better for efficiency
ug_id_t selected_cnt;
// count the frames for fun
unsigned long int frame;
@ -228,13 +260,24 @@ int ug_container_sidebar(ug_ctx_t *ctx, const char *name, ug_size_t size, int si
// a body is a container that scales with the window, sits at it's center and cannot
// be resized, it also fills all the available space
int ug_container_body(ug_ctx_t *ctx, const char *name);
// mark a conatiner for removal, it will be freed at the next frame beginning
// mark a conatiner for removal, it will be freed at the next frame beginning if
// name is NULL then use the selected container
int ug_container_remove(ug_ctx_t *ctx, const char *name);
// get the drawable area of the container, if name is NULL then use the selected
// container
ug_rect_t ug_container_get_rect(ug_ctx_t *ctx, const char *name);
// layouting, the following functions define how different ui elements are placed
// inside the selected container. A new element is aligned respective to the
// previous element and/or to the container, particularly elements can be placed
// in a row or a column.
int ug_layout_row(ug_ctx_t *ctx);
int ug_layout_column(ug_ctx_t *ctx);
int ug_layout_next_row(ug_ctx_t *ctx);
int ug_layout_next_column(ug_ctx_t *ctx);
// layouts
// elements
int ug_element_button(ug_ctx_t *ctx, const char *name, const char *txt, ug_div_t dim);
// Input functions
int ug_input_mousemove(ug_ctx_t *ctx, int x, int y);