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-rw-r--r--microui.c1208
1 files changed, 0 insertions, 1208 deletions
diff --git a/microui.c b/microui.c
deleted file mode 100644
index a8a3f74a217d..000000000000
--- a/microui.c
+++ /dev/null
@@ -1,1208 +0,0 @@
-/*
-** Copyright (c) 2020 rxi
-**
-** Permission is hereby granted, free of charge, to any person obtaining a copy
-** of this software and associated documentation files (the "Software"), to
-** deal in the Software without restriction, including without limitation the
-** rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
-** sell copies of the Software, and to permit persons to whom the Software is
-** furnished to do so, subject to the following conditions:
-**
-** The above copyright notice and this permission notice shall be included in
-** all copies or substantial portions of the Software.
-**
-** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-** IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-** FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-** AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-** LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
-** FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
-** IN THE SOFTWARE.
-*/
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include "microui.h"
-
-#define unused(x) ((void) (x))
-
-#define expect(x) do { \
- if (!(x)) { \
- fprintf(stderr, "Fatal error: %s:%d: assertion '%s' failed\n", \
- __FILE__, __LINE__, #x); \
- abort(); \
- } \
- } while (0)
-
-#define push(stk, val) do { \
- expect((stk).idx < (int) (sizeof((stk).items) / sizeof(*(stk).items))); \
- (stk).items[(stk).idx] = (val); \
- (stk).idx++; /* incremented after incase `val` uses this value */ \
- } while (0)
-
-#define pop(stk) do { \
- expect((stk).idx > 0); \
- (stk).idx--; \
- } while (0)
-
-
-static mu_Rect unclipped_rect = { 0, 0, 0x1000000, 0x1000000 };
-
-static mu_Style default_style = {
- /* font | size | padding | spacing | indent */
- NULL, { 68, 10 }, 5, 4, 24,
- /* title_height | scrollbar_size | thumb_size */
- 24, 12, 8,
- {
- { 230, 230, 230, 255 }, /* MU_COLOR_TEXT */
- { 25, 25, 25, 255 }, /* MU_COLOR_BORDER */
- { 50, 50, 50, 255 }, /* MU_COLOR_WINDOWBG */
- { 25, 25, 25, 255 }, /* MU_COLOR_TITLEBG */
- { 240, 240, 240, 255 }, /* MU_COLOR_TITLETEXT */
- { 0, 0, 0, 0 }, /* MU_COLOR_PANELBG */
- { 75, 75, 75, 255 }, /* MU_COLOR_BUTTON */
- { 95, 95, 95, 255 }, /* MU_COLOR_BUTTONHOVER */
- { 115, 115, 115, 255 }, /* MU_COLOR_BUTTONFOCUS */
- { 30, 30, 30, 255 }, /* MU_COLOR_BASE */
- { 35, 35, 35, 255 }, /* MU_COLOR_BASEHOVER */
- { 40, 40, 40, 255 }, /* MU_COLOR_BASEFOCUS */
- { 43, 43, 43, 255 }, /* MU_COLOR_SCROLLBASE */
- { 30, 30, 30, 255 } /* MU_COLOR_SCROLLTHUMB */
- }
-};
-
-
-mu_Vec2 mu_vec2(int x, int y) {
- mu_Vec2 res;
- res.x = x; res.y = y;
- return res;
-}
-
-
-mu_Rect mu_rect(int x, int y, int w, int h) {
- mu_Rect res;
- res.x = x; res.y = y; res.w = w; res.h = h;
- return res;
-}
-
-
-mu_Color mu_color(int r, int g, int b, int a) {
- mu_Color res;
- res.r = r; res.g = g; res.b = b; res.a = a;
- return res;
-}
-
-
-static mu_Rect expand_rect(mu_Rect rect, int n) {
- return mu_rect(rect.x - n, rect.y - n, rect.w + n * 2, rect.h + n * 2);
-}
-
-
-static mu_Rect intersect_rects(mu_Rect r1, mu_Rect r2) {
- int x1 = mu_max(r1.x, r2.x);
- int y1 = mu_max(r1.y, r2.y);
- int x2 = mu_min(r1.x + r1.w, r2.x + r2.w);
- int y2 = mu_min(r1.y + r1.h, r2.y + r2.h);
- if (x2 < x1) { x2 = x1; }
- if (y2 < y1) { y2 = y1; }
- return mu_rect(x1, y1, x2 - x1, y2 - y1);
-}
-
-
-static int rect_overlaps_vec2(mu_Rect r, mu_Vec2 p) {
- return p.x >= r.x && p.x < r.x + r.w && p.y >= r.y && p.y < r.y + r.h;
-}
-
-
-static void draw_frame(mu_Context *ctx, mu_Rect rect, int colorid) {
- mu_draw_rect(ctx, rect, ctx->style->colors[colorid]);
- if (colorid == MU_COLOR_SCROLLBASE ||
- colorid == MU_COLOR_SCROLLTHUMB ||
- colorid == MU_COLOR_TITLEBG) { return; }
- /* draw border */
- if (ctx->style->colors[MU_COLOR_BORDER].a) {
- mu_draw_box(ctx, expand_rect(rect, 1), ctx->style->colors[MU_COLOR_BORDER]);
- }
-}
-
-
-void mu_init(mu_Context *ctx) {
- memset(ctx, 0, sizeof(*ctx));
- ctx->draw_frame = draw_frame;
- ctx->_style = default_style;
- ctx->style = &ctx->_style;
-}
-
-
-void mu_begin(mu_Context *ctx) {
- expect(ctx->text_width && ctx->text_height);
- ctx->command_list.idx = 0;
- ctx->root_list.idx = 0;
- ctx->scroll_target = NULL;
- ctx->hover_root = ctx->next_hover_root;
- ctx->next_hover_root = NULL;
- ctx->mouse_delta.x = ctx->mouse_pos.x - ctx->last_mouse_pos.x;
- ctx->mouse_delta.y = ctx->mouse_pos.y - ctx->last_mouse_pos.y;
- ctx->frame++;
-}
-
-
-static int compare_zindex(const void *a, const void *b) {
- return (*(mu_Container**) a)->zindex - (*(mu_Container**) b)->zindex;
-}
-
-
-void mu_end(mu_Context *ctx) {
- int i, n;
- /* check stacks */
- expect(ctx->container_stack.idx == 0);
- expect(ctx->clip_stack.idx == 0);
- expect(ctx->id_stack.idx == 0);
- expect(ctx->layout_stack.idx == 0);
-
- /* handle scroll input */
- if (ctx->scroll_target) {
- ctx->scroll_target->scroll.x += ctx->scroll_delta.x;
- ctx->scroll_target->scroll.y += ctx->scroll_delta.y;
- }
-
- /* unset focus if focus id was not touched this frame */
- if (!ctx->updated_focus) { ctx->focus = 0; }
- ctx->updated_focus = 0;
-
- /* bring hover root to front if mouse was pressed */
- if (ctx->mouse_pressed && ctx->next_hover_root &&
- ctx->next_hover_root->zindex < ctx->last_zindex &&
- ctx->next_hover_root->zindex >= 0
- ) {
- mu_bring_to_front(ctx, ctx->next_hover_root);
- }
-
- /* reset input state */
- ctx->key_pressed = 0;
- ctx->input_text[0] = '\0';
- ctx->mouse_pressed = 0;
- ctx->scroll_delta = mu_vec2(0, 0);
- ctx->last_mouse_pos = ctx->mouse_pos;
-
- /* sort root containers by zindex */
- n = ctx->root_list.idx;
- qsort(ctx->root_list.items, n, sizeof(mu_Container*), compare_zindex);
-
- /* set root container jump commands */
- for (i = 0; i < n; i++) {
- mu_Container *cnt = ctx->root_list.items[i];
- /* if this is the first container then make the first command jump to it.
- ** otherwise set the previous container's tail to jump to this one */
- if (i == 0) {
- mu_Command *cmd = (mu_Command*) ctx->command_list.items;
- cmd->jump.dst = (char*) cnt->head + sizeof(mu_JumpCommand);
- } else {
- mu_Container *prev = ctx->root_list.items[i - 1];
- prev->tail->jump.dst = (char*) cnt->head + sizeof(mu_JumpCommand);
- }
- /* make the last container's tail jump to the end of command list */
- if (i == n - 1) {
- cnt->tail->jump.dst = ctx->command_list.items + ctx->command_list.idx;
- }
- }
-}
-
-
-void mu_set_focus(mu_Context *ctx, mu_Id id) {
- ctx->focus = id;
- ctx->updated_focus = 1;
-}
-
-
-/* 32bit fnv-1a hash */
-#define HASH_INITIAL 2166136261
-
-static void hash(mu_Id *hash, const void *data, int size) {
- const unsigned char *p = data;
- while (size--) {
- *hash = (*hash ^ *p++) * 16777619;
- }
-}
-
-
-mu_Id mu_get_id(mu_Context *ctx, const void *data, int size) {
- int idx = ctx->id_stack.idx;
- mu_Id res = (idx > 0) ? ctx->id_stack.items[idx - 1] : HASH_INITIAL;
- hash(&res, data, size);
- ctx->last_id = res;
- return res;
-}
-
-
-void mu_push_id(mu_Context *ctx, const void *data, int size) {
- push(ctx->id_stack, mu_get_id(ctx, data, size));
-}
-
-
-void mu_pop_id(mu_Context *ctx) {
- pop(ctx->id_stack);
-}
-
-
-void mu_push_clip_rect(mu_Context *ctx, mu_Rect rect) {
- mu_Rect last = mu_get_clip_rect(ctx);
- push(ctx->clip_stack, intersect_rects(rect, last));
-}
-
-
-void mu_pop_clip_rect(mu_Context *ctx) {
- pop(ctx->clip_stack);
-}
-
-
-mu_Rect mu_get_clip_rect(mu_Context *ctx) {
- expect(ctx->clip_stack.idx > 0);
- return ctx->clip_stack.items[ctx->clip_stack.idx - 1];
-}
-
-
-int mu_check_clip(mu_Context *ctx, mu_Rect r) {
- mu_Rect cr = mu_get_clip_rect(ctx);
- if (r.x > cr.x + cr.w || r.x + r.w < cr.x ||
- r.y > cr.y + cr.h || r.y + r.h < cr.y ) { return MU_CLIP_ALL; }
- if (r.x >= cr.x && r.x + r.w <= cr.x + cr.w &&
- r.y >= cr.y && r.y + r.h <= cr.y + cr.h ) { return 0; }
- return MU_CLIP_PART;
-}
-
-
-static void push_layout(mu_Context *ctx, mu_Rect body, mu_Vec2 scroll) {
- mu_Layout layout;
- int width = 0;
- memset(&layout, 0, sizeof(layout));
- layout.body = mu_rect(body.x - scroll.x, body.y - scroll.y, body.w, body.h);
- layout.max = mu_vec2(-0x1000000, -0x1000000);
- push(ctx->layout_stack, layout);
- mu_layout_row(ctx, 1, &width, 0);
-}
-
-
-static mu_Layout* get_layout(mu_Context *ctx) {
- return &ctx->layout_stack.items[ctx->layout_stack.idx - 1];
-}
-
-
-static void pop_container(mu_Context *ctx) {
- mu_Container *cnt = mu_get_current_container(ctx);
- mu_Layout *layout = get_layout(ctx);
- cnt->content_size.x = layout->max.x - layout->body.x;
- cnt->content_size.y = layout->max.y - layout->body.y;
- /* pop container, layout and id */
- pop(ctx->container_stack);
- pop(ctx->layout_stack);
- mu_pop_id(ctx);
-}
-
-
-mu_Container* mu_get_current_container(mu_Context *ctx) {
- expect(ctx->container_stack.idx > 0);
- return ctx->container_stack.items[ ctx->container_stack.idx - 1 ];
-}
-
-
-static mu_Container* get_container(mu_Context *ctx, mu_Id id, int opt) {
- mu_Container *cnt;
- /* try to get existing container from pool */
- int idx = mu_pool_get(ctx, ctx->container_pool, MU_CONTAINERPOOL_SIZE, id);
- if (idx >= 0) {
- if (ctx->containers[idx].open || ~opt & MU_OPT_CLOSED) {
- mu_pool_update(ctx, ctx->container_pool, idx);
- }
- return &ctx->containers[idx];
- }
- if (opt & MU_OPT_CLOSED) { return NULL; }
- /* container not found in pool: init new container */
- idx = mu_pool_init(ctx, ctx->container_pool, MU_CONTAINERPOOL_SIZE, id);
- cnt = &ctx->containers[idx];
- memset(cnt, 0, sizeof(*cnt));
- cnt->open = 1;
- mu_bring_to_front(ctx, cnt);
- return cnt;
-}
-
-
-mu_Container* mu_get_container(mu_Context *ctx, const char *name) {
- mu_Id id = mu_get_id(ctx, name, strlen(name));
- return get_container(ctx, id, 0);
-}
-
-
-void mu_bring_to_front(mu_Context *ctx, mu_Container *cnt) {
- cnt->zindex = ++ctx->last_zindex;
-}
-
-
-/*============================================================================
-** pool
-**============================================================================*/
-
-int mu_pool_init(mu_Context *ctx, mu_PoolItem *items, int len, mu_Id id) {
- int i, n = -1, f = ctx->frame;
- for (i = 0; i < len; i++) {
- if (items[i].last_update < f) {
- f = items[i].last_update;
- n = i;
- }
- }
- expect(n > -1);
- items[n].id = id;
- mu_pool_update(ctx, items, n);
- return n;
-}
-
-
-int mu_pool_get(mu_Context *ctx, mu_PoolItem *items, int len, mu_Id id) {
- int i;
- unused(ctx);
- for (i = 0; i < len; i++) {
- if (items[i].id == id) { return i; }
- }
- return -1;
-}
-
-
-void mu_pool_update(mu_Context *ctx, mu_PoolItem *items, int idx) {
- items[idx].last_update = ctx->frame;
-}
-
-
-/*============================================================================
-** input handlers
-**============================================================================*/
-
-void mu_input_mousemove(mu_Context *ctx, int x, int y) {
- ctx->mouse_pos = mu_vec2(x, y);
-}
-
-
-void mu_input_mousedown(mu_Context *ctx, int x, int y, int btn) {
- mu_input_mousemove(ctx, x, y);
- ctx->mouse_down |= btn;
- ctx->mouse_pressed |= btn;
-}
-
-
-void mu_input_mouseup(mu_Context *ctx, int x, int y, int btn) {
- mu_input_mousemove(ctx, x, y);
- ctx->mouse_down &= ~btn;
-}
-
-
-void mu_input_scroll(mu_Context *ctx, int x, int y) {
- ctx->scroll_delta.x += x;
- ctx->scroll_delta.y += y;
-}
-
-
-void mu_input_keydown(mu_Context *ctx, int key) {
- ctx->key_pressed |= key;
- ctx->key_down |= key;
-}
-
-
-void mu_input_keyup(mu_Context *ctx, int key) {
- ctx->key_down &= ~key;
-}
-
-
-void mu_input_text(mu_Context *ctx, const char *text) {
- int len = strlen(ctx->input_text);
- int size = strlen(text) + 1;
- expect(len + size <= (int) sizeof(ctx->input_text));
- memcpy(ctx->input_text + len, text, size);
-}
-
-
-/*============================================================================
-** commandlist
-**============================================================================*/
-
-mu_Command* mu_push_command(mu_Context *ctx, int type, int size) {
- mu_Command *cmd = (mu_Command*) (ctx->command_list.items + ctx->command_list.idx);
- expect(ctx->command_list.idx + size < MU_COMMANDLIST_SIZE);
- cmd->base.type = type;
- cmd->base.size = size;
- ctx->command_list.idx += size;
- return cmd;
-}
-
-
-int mu_next_command(mu_Context *ctx, mu_Command **cmd) {
- if (*cmd) {
- *cmd = (mu_Command*) (((char*) *cmd) + (*cmd)->base.size);
- } else {
- *cmd = (mu_Command*) ctx->command_list.items;
- }
- while ((char*) *cmd != ctx->command_list.items + ctx->command_list.idx) {
- if ((*cmd)->type != MU_COMMAND_JUMP) { return 1; }
- *cmd = (*cmd)->jump.dst;
- }
- return 0;
-}
-
-
-static mu_Command* push_jump(mu_Context *ctx, mu_Command *dst) {
- mu_Command *cmd;
- cmd = mu_push_command(ctx, MU_COMMAND_JUMP, sizeof(mu_JumpCommand));
- cmd->jump.dst = dst;
- return cmd;
-}
-
-
-void mu_set_clip(mu_Context *ctx, mu_Rect rect) {
- mu_Command *cmd;
- cmd = mu_push_command(ctx, MU_COMMAND_CLIP, sizeof(mu_ClipCommand));
- cmd->clip.rect = rect;
-}
-
-
-void mu_draw_rect(mu_Context *ctx, mu_Rect rect, mu_Color color) {
- mu_Command *cmd;
- rect = intersect_rects(rect, mu_get_clip_rect(ctx));
- if (rect.w > 0 && rect.h > 0) {
- cmd = mu_push_command(ctx, MU_COMMAND_RECT, sizeof(mu_RectCommand));
- cmd->rect.rect = rect;
- cmd->rect.color = color;
- }
-}
-
-
-void mu_draw_box(mu_Context *ctx, mu_Rect rect, mu_Color color) {
- mu_draw_rect(ctx, mu_rect(rect.x + 1, rect.y, rect.w - 2, 1), color);
- mu_draw_rect(ctx, mu_rect(rect.x + 1, rect.y + rect.h - 1, rect.w - 2, 1), color);
- mu_draw_rect(ctx, mu_rect(rect.x, rect.y, 1, rect.h), color);
- mu_draw_rect(ctx, mu_rect(rect.x + rect.w - 1, rect.y, 1, rect.h), color);
-}
-
-
-void mu_draw_text(mu_Context *ctx, mu_Font font, const char *str, int len,
- mu_Vec2 pos, mu_Color color)
-{
- mu_Command *cmd;
- mu_Rect rect = mu_rect(
- pos.x, pos.y, ctx->text_width(font, str, len), ctx->text_height(font));
- int clipped = mu_check_clip(ctx, rect);
- if (clipped == MU_CLIP_ALL ) { return; }
- if (clipped == MU_CLIP_PART) { mu_set_clip(ctx, mu_get_clip_rect(ctx)); }
- /* add command */
- if (len < 0) { len = strlen(str); }
- cmd = mu_push_command(ctx, MU_COMMAND_TEXT, sizeof(mu_TextCommand) + len);
- memcpy(cmd->text.str, str, len);
- cmd->text.str[len] = '\0';
- cmd->text.pos = pos;
- cmd->text.color = color;
- cmd->text.font = font;
- /* reset clipping if it was set */
- if (clipped) { mu_set_clip(ctx, unclipped_rect); }
-}
-
-
-void mu_draw_icon(mu_Context *ctx, int id, mu_Rect rect, mu_Color color) {
- mu_Command *cmd;
- /* do clip command if the rect isn't fully contained within the cliprect */
- int clipped = mu_check_clip(ctx, rect);
- if (clipped == MU_CLIP_ALL ) { return; }
- if (clipped == MU_CLIP_PART) { mu_set_clip(ctx, mu_get_clip_rect(ctx)); }
- /* do icon command */
- cmd = mu_push_command(ctx, MU_COMMAND_ICON, sizeof(mu_IconCommand));
- cmd->icon.id = id;
- cmd->icon.rect = rect;
- cmd->icon.color = color;
- /* reset clipping if it was set */
- if (clipped) { mu_set_clip(ctx, unclipped_rect); }
-}
-
-
-/*============================================================================
-** layout
-**============================================================================*/
-
-enum { RELATIVE = 1, ABSOLUTE = 2 };
-
-
-void mu_layout_begin_column(mu_Context *ctx) {
- push_layout(ctx, mu_layout_next(ctx), mu_vec2(0, 0));
-}
-
-
-void mu_layout_end_column(mu_Context *ctx) {
- mu_Layout *a, *b;
- b = get_layout(ctx);
- pop(ctx->layout_stack);
- /* inherit position/next_row/max from child layout if they are greater */
- a = get_layout(ctx);
- a->position.x = mu_max(a->position.x, b->position.x + b->body.x - a->body.x);
- a->next_row = mu_max(a->next_row, b->next_row + b->body.y - a->body.y);
- a->max.x = mu_max(a->max.x, b->max.x);
- a->max.y = mu_max(a->max.y, b->max.y);
-}
-
-
-void mu_layout_row(mu_Context *ctx, int items, const int *widths, int height) {
- mu_Layout *layout = get_layout(ctx);
- if (widths) {
- expect(items <= MU_MAX_WIDTHS);
- memcpy(layout->widths, widths, items * sizeof(widths[0]));
- }
- layout->items = items;
- layout->position = mu_vec2(layout->indent, layout->next_row);
- layout->size.y = height;
- layout->item_index = 0;
-}
-
-
-void mu_layout_width(mu_Context *ctx, int width) {
- get_layout(ctx)->size.x = width;
-}
-
-
-void mu_layout_height(mu_Context *ctx, int height) {
- get_layout(ctx)->size.y = height;
-}
-
-
-void mu_layout_set_next(mu_Context *ctx, mu_Rect r, int relative) {
- mu_Layout *layout = get_layout(ctx);
- layout->next = r;
- layout->next_type = relative ? RELATIVE : ABSOLUTE;
-}
-
-
-mu_Rect mu_layout_next(mu_Context *ctx) {
- mu_Layout *layout = get_layout(ctx);
- mu_Style *style = ctx->style;
- mu_Rect res;
-
- if (layout->next_type) {
- /* handle rect set by `mu_layout_set_next` */
- int type = layout->next_type;
- layout->next_type = 0;
- res = layout->next;
- if (type == ABSOLUTE) { return (ctx->last_rect = res); }
-
- } else {
- /* handle next row */
- if (layout->item_index == layout->items) {
- mu_layout_row(ctx, layout->items, NULL, layout->size.y);
- }
-
- /* position */
- res.x = layout->position.x;
- res.y = layout->position.y;
-
- /* size */
- res.w = layout->items > 0 ? layout->widths[layout->item_index] : layout->size.x;
- res.h = layout->size.y;
- if (res.w == 0) { res.w = style->size.x + style->padding * 2; }
- if (res.h == 0) { res.h = style->size.y + style->padding * 2; }
- if (res.w < 0) { res.w += layout->body.w - res.x + 1; }
- if (res.h < 0) { res.h += layout->body.h - res.y + 1; }
-
- layout->item_index++;
- }
-
- /* update position */
- layout->position.x += res.w + style->spacing;
- layout->next_row = mu_max(layout->next_row, res.y + res.h + style->spacing);
-
- /* apply body offset */
- res.x += layout->body.x;
- res.y += layout->body.y;
-
- /* update max position */
- layout->max.x = mu_max(layout->max.x, res.x + res.w);
- layout->max.y = mu_max(layout->max.y, res.y + res.h);
-
- return (ctx->last_rect = res);
-}
-
-
-/*============================================================================
-** controls
-**============================================================================*/
-
-static int in_hover_root(mu_Context *ctx) {
- int i = ctx->container_stack.idx;
- while (i--) {
- if (ctx->container_stack.items[i] == ctx->hover_root) { return 1; }
- /* only root containers have their `head` field set; stop searching if we've
- ** reached the current root container */
- if (ctx->container_stack.items[i]->head) { break; }
- }
- return 0;
-}
-
-
-void mu_draw_control_frame(mu_Context *ctx, mu_Id id, mu_Rect rect,
- int colorid, int opt)
-{
- if (opt & MU_OPT_NOFRAME) { return; }
- colorid += (ctx->focus == id) ? 2 : (ctx->hover == id) ? 1 : 0;
- ctx->draw_frame(ctx, rect, colorid);
-}
-
-
-void mu_draw_control_text(mu_Context *ctx, const char *str, mu_Rect rect,
- int colorid, int opt)
-{
- mu_Vec2 pos;
- mu_Font font = ctx->style->font;
- int tw = ctx->text_width(font, str, -1);
- mu_push_clip_rect(ctx, rect);
- pos.y = rect.y + (rect.h - ctx->text_height(font)) / 2;
- if (opt & MU_OPT_ALIGNCENTER) {
- pos.x = rect.x + (rect.w - tw) / 2;
- } else if (opt & MU_OPT_ALIGNRIGHT) {
- pos.x = rect.x + rect.w - tw - ctx->style->padding;
- } else {
- pos.x = rect.x + ctx->style->padding;
- }
- mu_draw_text(ctx, font, str, -1, pos, ctx->style->colors[colorid]);
- mu_pop_clip_rect(ctx);
-}
-
-
-int mu_mouse_over(mu_Context *ctx, mu_Rect rect) {
- return rect_overlaps_vec2(rect, ctx->mouse_pos) &&
- rect_overlaps_vec2(mu_get_clip_rect(ctx), ctx->mouse_pos) &&
- in_hover_root(ctx);
-}
-
-
-void mu_update_control(mu_Context *ctx, mu_Id id, mu_Rect rect, int opt) {
- int mouseover = mu_mouse_over(ctx, rect);
-
- if (ctx->focus == id) { ctx->updated_focus = 1; }
- if (opt & MU_OPT_NOINTERACT) { return; }
- if (mouseover && !ctx->mouse_down) { ctx->hover = id; }
-
- if (ctx->focus == id) {
- if (ctx->mouse_pressed && !mouseover) { mu_set_focus(ctx, 0); }
- if (!ctx->mouse_down && ~opt & MU_OPT_HOLDFOCUS) { mu_set_focus(ctx, 0); }
- }
-
- if (ctx->hover == id) {
- if (ctx->mouse_pressed) {
- mu_set_focus(ctx, id);
- } else if (!mouseover) {
- ctx->hover = 0;
- }
- }
-}
-
-
-void mu_text(mu_Context *ctx, const char *text) {
- const char *start, *end, *p = text;
- int width = -1;
- mu_Font font = ctx->style->font;
- mu_Color color = ctx->style->colors[MU_COLOR_TEXT];
- mu_layout_begin_column(ctx);
- mu_layout_row(ctx, 1, &width, ctx->text_height(font));
- do {
- mu_Rect r = mu_layout_next(ctx);
- int w = 0;
- start = end = p;
- do {
- const char* word = p;
- while (*p && *p != ' ' && *p != '\n') { p++; }
- w += ctx->text_width(font, word, p - word);
- if (w > r.w && end != start) { break; }
- w += ctx->text_width(font, p, 1);
- end = p++;
- } while (*end && *end != '\n');
- mu_draw_text(ctx, font, start, end - start, mu_vec2(r.x, r.y), color);
- p = end + 1;
- } while (*end);
- mu_layout_end_column(ctx);
-}
-
-
-void mu_label(mu_Context *ctx, const char *text) {
- mu_draw_control_text(ctx, text, mu_layout_next(ctx), MU_COLOR_TEXT, 0);
-}
-
-
-int mu_button_ex(mu_Context *ctx, const char *label, int icon, int opt) {
- int res = 0;
- mu_Id id = label ? mu_get_id(ctx, label, strlen(label))
- : mu_get_id(ctx, &icon, sizeof(icon));
- mu_Rect r = mu_layout_next(ctx);
- mu_update_control(ctx, id, r, opt);
- /* handle click */
- if (ctx->mouse_pressed == MU_MOUSE_LEFT && ctx->focus == id) {
- res |= MU_RES_SUBMIT;
- }
- /* draw */
- mu_draw_control_frame(ctx, id, r, MU_COLOR_BUTTON, opt);
- if (label) { mu_draw_control_text(ctx, label, r, MU_COLOR_TEXT, opt); }
- if (icon) { mu_draw_icon(ctx, icon, r, ctx->style->colors[MU_COLOR_TEXT]); }
- return res;
-}
-
-
-int mu_checkbox(mu_Context *ctx, const char *label, int *state) {
- int res = 0;
- mu_Id id = mu_get_id(ctx, &state, sizeof(state));
- mu_Rect r = mu_layout_next(ctx);
- mu_Rect box = mu_rect(r.x, r.y, r.h, r.h);
- mu_update_control(ctx, id, r, 0);
- /* handle click */
- if (ctx->mouse_pressed == MU_MOUSE_LEFT && ctx->focus == id) {
- res |= MU_RES_CHANGE;
- *state = !*state;
- }
- /* draw */
- mu_draw_control_frame(ctx, id, box, MU_COLOR_BASE, 0);
- if (*state) {
- mu_draw_icon(ctx, MU_ICON_CHECK, box, ctx->style->colors[MU_COLOR_TEXT]);
- }
- r = mu_rect(r.x + box.w, r.y, r.w - box.w, r.h);
- mu_draw_control_text(ctx, label, r, MU_COLOR_TEXT, 0);
- return res;
-}
-
-
-int mu_textbox_raw(mu_Context *ctx, char *buf, int bufsz, mu_Id id, mu_Rect r,
- int opt)
-{
- int res = 0;
- mu_update_control(ctx, id, r, opt | MU_OPT_HOLDFOCUS);
-
- if (ctx->focus == id) {
- /* handle text input */
- int len = strlen(buf);
- int n = mu_min(bufsz - len - 1, (int) strlen(ctx->input_text));
- if (n > 0) {
- memcpy(buf + len, ctx->input_text, n);
- len += n;
- buf[len] = '\0';
- res |= MU_RES_CHANGE;
- }
- /* handle backspace */
- if (ctx->key_pressed & MU_KEY_BACKSPACE && len > 0) {
- /* skip utf-8 continuation bytes */
- while ((buf[--len] & 0xc0) == 0x80 && len > 0);
- buf[len] = '\0';
- res |= MU_RES_CHANGE;
- }
- /* handle return */
- if (ctx->key_pressed & MU_KEY_RETURN) {
- mu_set_focus(ctx, 0);
- res |= MU_RES_SUBMIT;
- }
- }
-
- /* draw */
- mu_draw_control_frame(ctx, id, r, MU_COLOR_BASE, opt);
- if (ctx->focus == id) {
- mu_Color color = ctx->style->colors[MU_COLOR_TEXT];
- mu_Font font = ctx->style->font;
- int textw = ctx->text_width(font, buf, -1);
- int texth = ctx->text_height(font);
- int ofx = r.w - ctx->style->padding - textw - 1;
- int textx = r.x + mu_min(ofx, ctx->style->padding);
- int texty = r.y + (r.h - texth) / 2;
- mu_push_clip_rect(ctx, r);
- mu_draw_text(ctx, font, buf, -1, mu_vec2(textx, texty), color);
- mu_draw_rect(ctx, mu_rect(textx + textw, texty, 1, texth), color);
- mu_pop_clip_rect(ctx);
- } else {
- mu_draw_control_text(ctx, buf, r, MU_COLOR_TEXT, opt);
- }
-
- return res;
-}
-
-
-static int number_textbox(mu_Context *ctx, mu_Real *value, mu_Rect r, mu_Id id) {
- if (ctx->mouse_pressed == MU_MOUSE_LEFT && ctx->key_down & MU_KEY_SHIFT &&
- ctx->hover == id
- ) {
- ctx->number_edit = id;
- sprintf(ctx->number_edit_buf, MU_REAL_FMT, *value);
- }
- if (ctx->number_edit == id) {
- int res = mu_textbox_raw(
- ctx, ctx->number_edit_buf, sizeof(ctx->number_edit_buf), id, r, 0);
- if (res & MU_RES_SUBMIT || ctx->focus != id) {
- *value = strtod(ctx->number_edit_buf, NULL);
- ctx->number_edit = 0;
- } else {
- return 1;
- }
- }
- return 0;
-}
-
-
-int mu_textbox_ex(mu_Context *ctx, char *buf, int bufsz, int opt) {
- mu_Id id = mu_get_id(ctx, &buf, sizeof(buf));
- mu_Rect r = mu_layout_next(ctx);
- return mu_textbox_raw(ctx, buf, bufsz, id, r, opt);
-}
-
-
-int mu_slider_ex(mu_Context *ctx, mu_Real *value, mu_Real low, mu_Real high,
- mu_Real step, const char *fmt, int opt)
-{
- char buf[MU_MAX_FMT + 1];
- mu_Rect thumb;
- int x, w, res = 0;
- mu_Real last = *value, v = last;
- mu_Id id = mu_get_id(ctx, &value, sizeof(value));
- mu_Rect base = mu_layout_next(ctx);
-
- /* handle text input mode */
- if (number_textbox(ctx, &v, base, id)) { return res; }
-
- /* handle normal mode */
- mu_update_control(ctx, id, base, opt);
-
- /* handle input */
- if (ctx->focus == id &&
- (ctx->mouse_down | ctx->mouse_pressed) == MU_MOUSE_LEFT)
- {
- v = low + (ctx->mouse_pos.x - base.x) * (high - low) / base.w;
- if (step) { v = (((v + step / 2) / step)) * step; }
- }
- /* clamp and store value, update res */
- *value = v = mu_clamp(v, low, high);
- if (last != v) { res |= MU_RES_CHANGE; }
-
- /* draw base */
- mu_draw_control_frame(ctx, id, base, MU_COLOR_BASE, opt);
- /* draw thumb */
- w = ctx->style->thumb_size;
- x = (v - low) * (base.w - w) / (high - low);
- thumb = mu_rect(base.x + x, base.y, w, base.h);
- mu_draw_control_frame(ctx, id, thumb, MU_COLOR_BUTTON, opt);
- /* draw text */
- sprintf(buf, fmt, v);
- mu_draw_control_text(ctx, buf, base, MU_COLOR_TEXT, opt);
-
- return res;
-}
-
-
-int mu_number_ex(mu_Context *ctx, mu_Real *value, mu_Real step,
- const char *fmt, int opt)
-{
- char buf[MU_MAX_FMT + 1];
- int res = 0;
- mu_Id id = mu_get_id(ctx, &value, sizeof(value));
- mu_Rect base = mu_layout_next(ctx);
- mu_Real last = *value;
-
- /* handle text input mode */
- if (number_textbox(ctx, value, base, id)) { return res; }
-
- /* handle normal mode */
- mu_update_control(ctx, id, base, opt);
-
- /* handle input */
- if (ctx->focus == id && ctx->mouse_down == MU_MOUSE_LEFT) {
- *value += ctx->mouse_delta.x * step;
- }
- /* set flag if value changed */
- if (*value != last) { res |= MU_RES_CHANGE; }
-
- /* draw base */
- mu_draw_control_frame(ctx, id, base, MU_COLOR_BASE, opt);
- /* draw text */
- sprintf(buf, fmt, *value);
- mu_draw_control_text(ctx, buf, base, MU_COLOR_TEXT, opt);
-
- return res;
-}
-
-
-static int header(mu_Context *ctx, const char *label, int istreenode, int opt) {
- mu_Rect r;
- int active, expanded;
- mu_Id id = mu_get_id(ctx, label, strlen(label));
- int idx = mu_pool_get(ctx, ctx->treenode_pool, MU_TREENODEPOOL_SIZE, id);
- int width = -1;
- mu_layout_row(ctx, 1, &width, 0);
-
- active = (idx >= 0);
- expanded = (opt & MU_OPT_EXPANDED) ? !active : active;
- r = mu_layout_next(ctx);
- mu_update_control(ctx, id, r, 0);
-
- /* handle click */
- active ^= (ctx->mouse_pressed == MU_MOUSE_LEFT && ctx->focus == id);
-
- /* update pool ref */
- if (idx >= 0) {
- if (active) { mu_pool_update(ctx, ctx->treenode_pool, idx); }
- else { memset(&ctx->treenode_pool[idx], 0, sizeof(mu_PoolItem)); }
- } else if (active) {
- mu_pool_init(ctx, ctx->treenode_pool, MU_TREENODEPOOL_SIZE, id);
- }
-
- /* draw */
- if (istreenode) {
- if (ctx->hover == id) { ctx->draw_frame(ctx, r, MU_COLOR_BUTTONHOVER); }
- } else {
- mu_draw_control_frame(ctx, id, r, MU_COLOR_BUTTON, 0);
- }
- mu_draw_icon(
- ctx, expanded ? MU_ICON_EXPANDED : MU_ICON_COLLAPSED,
- mu_rect(r.x, r.y, r.h, r.h), ctx->style->colors[MU_COLOR_TEXT]);
- r.x += r.h - ctx->style->padding;
- r.w -= r.h - ctx->style->padding;
- mu_draw_control_text(ctx, label, r, MU_COLOR_TEXT, 0);
-
- return expanded ? MU_RES_ACTIVE : 0;
-}
-
-
-int mu_header_ex(mu_Context *ctx, const char *label, int opt) {
- return header(ctx, label, 0, opt);
-}
-
-
-int mu_begin_treenode_ex(mu_Context *ctx, const char *label, int opt) {
- int res = header(ctx, label, 1, opt);
- if (res & MU_RES_ACTIVE) {
- get_layout(ctx)->indent += ctx->style->indent;
- push(ctx->id_stack, ctx->last_id);
- }
- return res;
-}
-
-
-void mu_end_treenode(mu_Context *ctx) {
- get_layout(ctx)->indent -= ctx->style->indent;
- mu_pop_id(ctx);
-}
-
-
-#define scrollbar(ctx, cnt, b, cs, x, y, w, h) \
- do { \
- /* only add scrollbar if content size is larger than body */ \
- int maxscroll = cs.y - b->h; \
- \
- if (maxscroll > 0 && b->h > 0) { \
- mu_Rect base, thumb; \
- mu_Id id = mu_get_id(ctx, "!scrollbar" #y, 11); \
- \
- /* get sizing / positioning */ \
- base = *b; \
- base.x = b->x + b->w; \
- base.w = ctx->style->scrollbar_size; \
- \
- /* handle input */ \
- mu_update_control(ctx, id, base, 0); \
- if (ctx->focus == id && ctx->mouse_down == MU_MOUSE_LEFT) { \
- cnt->scroll.y += ctx->mouse_delta.y * cs.y / base.h; \
- } \
- /* clamp scroll to limits */ \
- cnt->scroll.y = mu_clamp(cnt->scroll.y, 0, maxscroll); \
- \
- /* draw base and thumb */ \
- ctx->draw_frame(ctx, base, MU_COLOR_SCROLLBASE); \
- thumb = base; \
- thumb.h = mu_max(ctx->style->thumb_size, base.h * b->h / cs.y); \
- thumb.y += cnt->scroll.y * (base.h - thumb.h) / maxscroll; \
- ctx->draw_frame(ctx, thumb, MU_COLOR_SCROLLTHUMB); \
- \
- /* set this as the scroll_target (will get scrolled on mousewheel) */ \
- /* if the mouse is over it */ \
- if (mu_mouse_over(ctx, *b)) { ctx->scroll_target = cnt; } \
- } else { \
- cnt->scroll.y = 0; \
- } \
- } while (0)
-
-
-static void scrollbars(mu_Context *ctx, mu_Container *cnt, mu_Rect *body) {
- int sz = ctx->style->scrollbar_size;
- mu_Vec2 cs = cnt->content_size;
- cs.x += ctx->style->padding * 2;
- cs.y += ctx->style->padding * 2;
- mu_push_clip_rect(ctx, *body);
- /* resize body to make room for scrollbars */
- if (cs.y > cnt->body.h) { body->w -= sz; }
- if (cs.x > cnt->body.w) { body->h -= sz; }
- /* to create a horizontal or vertical scrollbar almost-identical code is
- ** used; only the references to `x|y` `w|h` need to be switched */
- scrollbar(ctx, cnt, body, cs, x, y, w, h);
- scrollbar(ctx, cnt, body, cs, y, x, h, w);
- mu_pop_clip_rect(ctx);
-}
-
-
-static void push_container_body(
- mu_Context *ctx, mu_Container *cnt, mu_Rect body, int opt
-) {
- if (~opt & MU_OPT_NOSCROLL) { scrollbars(ctx, cnt, &body); }
- push_layout(ctx, expand_rect(body, -ctx->style->padding), cnt->scroll);
- cnt->body = body;
-}
-
-
-static void begin_root_container(mu_Context *ctx, mu_Container *cnt) {
- push(ctx->container_stack, cnt);
- /* push container to roots list and push head command */
- push(ctx->root_list, cnt);
- cnt->head = push_jump(ctx, NULL);
- /* set as hover root if the mouse is overlapping this container and it has a
- ** higher zindex than the current hover root */
- if (rect_overlaps_vec2(cnt->rect, ctx->mouse_pos) &&
- (!ctx->next_hover_root || cnt->zindex > ctx->next_hover_root->zindex)
- ) {
- ctx->next_hover_root = cnt;
- }
- /* clipping is reset here in case a root-container is made within
- ** another root-containers's begin/end block; this prevents the inner
- ** root-container being clipped to the outer */
- push(ctx->clip_stack, unclipped_rect);
-}
-
-
-static void end_root_container(mu_Context *ctx) {
- /* push tail 'goto' jump command and set head 'skip' command. the final steps
- ** on initing these are done in mu_end() */
- mu_Container *cnt = mu_get_current_container(ctx);
- cnt->tail = push_jump(ctx, NULL);
- cnt->head->jump.dst = ctx->command_list.items + ctx->command_list.idx;
- /* pop base clip rect and container */
- mu_pop_clip_rect(ctx);
- pop_container(ctx);
-}
-
-
-int mu_begin_window_ex(mu_Context *ctx, const char *title, mu_Rect rect, int opt) {
- mu_Rect body;
- mu_Id id = mu_get_id(ctx, title, strlen(title));
- mu_Container *cnt = get_container(ctx, id, opt);
- if (!cnt || !cnt->open) { return 0; }
- push(ctx->id_stack, id);
-
- if (cnt->rect.w == 0) { cnt->rect = rect; }
- begin_root_container(ctx, cnt);
- rect = body = cnt->rect;
-
- /* draw frame */
- if (~opt & MU_OPT_NOFRAME) {
- ctx->draw_frame(ctx, rect, MU_COLOR_WINDOWBG);
- }
-
- /* do title bar */
- if (~opt & MU_OPT_NOTITLE) {
- mu_Rect tr = rect;
- tr.h = ctx->style->title_height;
- ctx->draw_frame(ctx, tr, MU_COLOR_TITLEBG);
-
- /* do title text */
- if (~opt & MU_OPT_NOTITLE) {
- mu_Id id = mu_get_id(ctx, "!title", 6);
- mu_update_control(ctx, id, tr, opt);
- mu_draw_control_text(ctx, title, tr, MU_COLOR_TITLETEXT, opt);
- if (id == ctx->focus && ctx->mouse_down == MU_MOUSE_LEFT) {
- cnt->rect.x += ctx->mouse_delta.x;
- cnt->rect.y += ctx->mouse_delta.y;
- }
- body.y += tr.h;
- body.h -= tr.h;
- }
-
- /* do `close` button */
- if (~opt & MU_OPT_NOCLOSE) {
- mu_Id id = mu_get_id(ctx, "!close", 6);
- mu_Rect r = mu_rect(tr.x + tr.w - tr.h, tr.y, tr.h, tr.h);
- tr.w -= r.w;
- mu_draw_icon(ctx, MU_ICON_CLOSE, r, ctx->style->colors[MU_COLOR_TITLETEXT]);
- mu_update_control(ctx, id, r, opt);
- if (ctx->mouse_pressed == MU_MOUSE_LEFT && id == ctx->focus) {
- cnt->open = 0;
- }
- }
- }
-
- push_container_body(ctx, cnt, body, opt);
-
- /* do `resize` handle */
- if (~opt & MU_OPT_NORESIZE) {
- int sz = ctx->style->title_height;
- mu_Id id = mu_get_id(ctx, "!resize", 7);
- mu_Rect r = mu_rect(rect.x + rect.w - sz, rect.y + rect.h - sz, sz, sz);
- mu_update_control(ctx, id, r, opt);
- if (id == ctx->focus && ctx->mouse_down == MU_MOUSE_LEFT) {
- cnt->rect.w = mu_max(96, cnt->rect.w + ctx->mouse_delta.x);
- cnt->rect.h = mu_max(64, cnt->rect.h + ctx->mouse_delta.y);
- }
- }
-
- /* resize to content size */
- if (opt & MU_OPT_AUTOSIZE) {
- mu_Rect r = get_layout(ctx)->body;
- cnt->rect.w = cnt->content_size.x + (cnt->rect.w - r.w);
- cnt->rect.h = cnt->content_size.y + (cnt->rect.h - r.h);
- }
-
- /* close if this is a popup window and elsewhere was clicked */
- if (opt & MU_OPT_POPUP && ctx->mouse_pressed && ctx->hover_root != cnt) {
- cnt->open = 0;
- }
-
- mu_push_clip_rect(ctx, cnt->body);
- return MU_RES_ACTIVE;
-}
-
-
-void mu_end_window(mu_Context *ctx) {
- mu_pop_clip_rect(ctx);
- end_root_container(ctx);
-}
-
-
-void mu_open_popup(mu_Context *ctx, const char *name) {
- mu_Container *cnt = mu_get_container(ctx, name);
- /* set as hover root so popup isn't closed in begin_window_ex() */
- ctx->hover_root = ctx->next_hover_root = cnt;
- /* position at mouse cursor, open and bring-to-front */
- cnt->rect = mu_rect(ctx->mouse_pos.x, ctx->mouse_pos.y, 1, 1);
- cnt->open = 1;
- mu_bring_to_front(ctx, cnt);
-}
-
-
-int mu_begin_popup(mu_Context *ctx, const char *name) {
- int opt = MU_OPT_POPUP | MU_OPT_AUTOSIZE | MU_OPT_NORESIZE |
- MU_OPT_NOSCROLL | MU_OPT_NOTITLE | MU_OPT_CLOSED;
- return mu_begin_window_ex(ctx, name, mu_rect(0, 0, 0, 0), opt);
-}
-
-
-void mu_end_popup(mu_Context *ctx) {
- mu_end_window(ctx);
-}
-
-
-void mu_begin_panel_ex(mu_Context *ctx, const char *name, int opt) {
- mu_Container *cnt;
- mu_push_id(ctx, name, strlen(name));
- cnt = get_container(ctx, ctx->last_id, opt);
- cnt->rect = mu_layout_next(ctx);
- if (~opt & MU_OPT_NOFRAME) {
- ctx->draw_frame(ctx, cnt->rect, MU_COLOR_PANELBG);
- }
- push(ctx->container_stack, cnt);
- push_container_body(ctx, cnt, cnt->rect, opt);
- mu_push_clip_rect(ctx, cnt->body);
-}
-
-
-void mu_end_panel(mu_Context *ctx) {
- mu_pop_clip_rect(ctx);
- pop_container(ctx);
-}