mirrors
/
Nuklear
mirror of https://github.com/Immediate-Mode-UI/Nuklear
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Added additional layouting method

This commit is contained in:
vurtun 2017-01-11 23:24:41 +01:00
parent 24c756c264
commit da347eecdd
3 changed files with 234 additions and 46 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
CHANGELOG.md
View File

@ -1,4 +1,6 @@
# Changelog
- 2016/01/11 (1.21) - Added additional row layouting method to combine both
dynamic and static widgets.
- 2016/12/31 (1.20) - Extended scrollbar offset from 16-bit to 32-bit
- 2016/12/31 (1.192)- Fixed closing window bug of minimized windows
- 2016/12/03 (1.191)- Fixed wrapped text with no seperator and C89 error

2
Readme.md
View File

@ -14,7 +14,7 @@ render backends it only focuses on the actual UI.
- Immediate mode graphical user interface toolkit
- Single header library
- Written in C89 (ANSI C)
- Small codebase (~15kLOC)
- Small codebase (~17kLOC)
- Focus on portability, efficiency and simplicity
- No dependencies (not even the standard library if not wanted)
- Fully skinnable and customizable

276
nuklear.h
View File

@ -1,5 +1,5 @@
/*
Nuklear - v1.20 - public domain
Nuklear - v1.21 - public domain
no warrenty implied; use at your own risk.
authored from 2015-2016 by Micha Mettke
@ -751,10 +751,17 @@ NK_API void nk_layout_row_push(struct nk_context*, float val
NK_API void nk_layout_row_end(struct nk_context*);
NK_API void nk_layout_row(struct nk_context*, enum nk_layout_format, float height, int cols, const float *ratio);
NK_API void nk_layout_row_template_begin(struct nk_context*, float height);
NK_API void nk_layout_row_template_push_dynamic(struct nk_context*);
NK_API void nk_layout_row_template_push_variable(struct nk_context*, float min_width);
NK_API void nk_layout_row_template_push_static(struct nk_context*, float width);
NK_API void nk_layout_row_template_end(struct nk_context*);
NK_API void nk_layout_space_begin(struct nk_context*, enum nk_layout_format, float height, int widget_count);
NK_API void nk_layout_space_push(struct nk_context*, struct nk_rect);
NK_API void nk_layout_space_end(struct nk_context*);
/* Layout: Utility */
NK_API struct nk_rect nk_layout_space_bounds(struct nk_context*);
NK_API struct nk_vec2 nk_layout_space_to_screen(struct nk_context*, struct nk_vec2);
NK_API struct nk_vec2 nk_layout_space_to_local(struct nk_context*, struct nk_vec2);
@ -2612,6 +2619,9 @@ NK_API struct nk_style_item nk_style_item_hide(void);
/*==============================================================
* PANEL
* =============================================================*/
#ifndef NK_MAX_LAYOUT_ROW_TEMPLATE_COLUMNS
#define NK_MAX_LAYOUT_ROW_TEMPLATE_COLUMNS 16
#endif
#ifndef NK_CHART_MAX_SLOT
#define NK_CHART_MAX_SLOT 4
#endif
@ -2647,8 +2657,20 @@ struct nk_chart {
struct nk_chart_slot slots[NK_CHART_MAX_SLOT];
};
enum nk_panel_row_layout_type {
NK_LAYOUT_DYNAMIC_FIXED = 0,
NK_LAYOUT_DYNAMIC_ROW,
NK_LAYOUT_DYNAMIC_FREE,
NK_LAYOUT_DYNAMIC,
NK_LAYOUT_STATIC_FIXED,
NK_LAYOUT_STATIC_ROW,
NK_LAYOUT_STATIC_FREE,
NK_LAYOUT_STATIC,
NK_LAYOUT_TEMPLATE,
NK_LAYOUT_COUNT
};
struct nk_row_layout {
int type;
enum nk_panel_row_layout_type type;
int index;
float height;
int columns;
@ -2659,6 +2681,7 @@ struct nk_row_layout {
float filled;
struct nk_rect item;
int tree_depth;
float templates[NK_MAX_LAYOUT_ROW_TEMPLATE_COLUMNS];
};
struct nk_popup_buffer {
@ -16683,7 +16706,7 @@ nk_panel_end(struct nk_context *ctx)
scroll.w = scrollbar_size.x;
scroll.h = layout->bounds.h;
scroll_offset = *layout->offset_y;
scroll_offset = (float)*layout->offset_y;
scroll_step = scroll.h * 0.10f;
scroll_inc = scroll.h * 0.01f;
scroll_target = (float)(int)(layout->at_y - scroll.y);
@ -16741,7 +16764,7 @@ nk_panel_end(struct nk_context *ctx)
scroll.w = layout->bounds.w;
scroll.h = scrollbar_size.y;
scroll_offset = *layout->offset_x;
scroll_offset = (float)*layout->offset_x;
scroll_target = (float)(int)(layout->max_x - scroll.x);
scroll_step = layout->max_x * 0.05f;
scroll_inc = layout->max_x * 0.005f;
@ -17792,14 +17815,26 @@ nk_menubar_end(struct nk_context *ctx)
* LAYOUT
*
* --------------------------------------------------------------*/
#define NK_LAYOUT_DYNAMIC_FIXED 0
#define NK_LAYOUT_DYNAMIC_ROW 1
#define NK_LAYOUT_DYNAMIC_FREE 2
#define NK_LAYOUT_DYNAMIC 3
#define NK_LAYOUT_STATIC_FIXED 4
#define NK_LAYOUT_STATIC_ROW 5
#define NK_LAYOUT_STATIC_FREE 6
#define NK_LAYOUT_STATIC 7
NK_INTERN float
nk_layout_row_calculate_usable_space(const struct nk_style *style, enum nk_panel_type type,
float total_space, int columns)
{
float panel_padding;
float panel_spacing;
float panel_space;
struct nk_vec2 spacing;
struct nk_vec2 padding;
spacing = style->window.spacing;
padding = nk_panel_get_padding(style, type);
/* calculate the usable panel space */
panel_padding = 2 * padding.x;
panel_spacing = (float)NK_MAX(columns - 1, 0) * spacing.x;
panel_space = total_space - panel_padding - panel_spacing;
return panel_space;
}
NK_INTERN void
nk_panel_layout(const struct nk_context *ctx, struct nk_window *win,
@ -17939,6 +17974,10 @@ nk_layout_row_push(struct nk_context *ctx, float ratio_or_width)
win = ctx->current;
layout = win->layout;
NK_ASSERT(layout->row.type == NK_LAYOUT_STATIC_ROW || layout->row.type == NK_LAYOUT_DYNAMIC_ROW);
if (layout->row.type != NK_LAYOUT_STATIC_ROW && layout->row.type != NK_LAYOUT_DYNAMIC_ROW)
return;
if (layout->row.type == NK_LAYOUT_DYNAMIC_ROW) {
float ratio = ratio_or_width;
if ((ratio + layout->row.filled) > 1.0f) return;
@ -17962,6 +18001,9 @@ nk_layout_row_end(struct nk_context *ctx)
win = ctx->current;
layout = win->layout;
NK_ASSERT(layout->row.type == NK_LAYOUT_STATIC_ROW || layout->row.type == NK_LAYOUT_DYNAMIC_ROW);
if (layout->row.type != NK_LAYOUT_STATIC_ROW && layout->row.type != NK_LAYOUT_DYNAMIC_ROW)
return;
layout->row.item_width = 0;
layout->row.item_offset = 0;
}
@ -18006,6 +18048,149 @@ nk_layout_row(struct nk_context *ctx, enum nk_layout_format fmt,
layout->row.filled = 0;
}
NK_API void
nk_layout_row_template_begin(struct nk_context *ctx, float height)
{
struct nk_window *win;
struct nk_panel *layout;
NK_ASSERT(ctx);
NK_ASSERT(ctx->current);
NK_ASSERT(ctx->current->layout);
if (!ctx || !ctx->current || !ctx->current->layout)
return;
win = ctx->current;
layout = win->layout;
nk_panel_layout(ctx, win, height, 1);
layout->row.type = NK_LAYOUT_TEMPLATE;
layout->row.columns = 0;
layout->row.ratio = 0;
layout->row.item_width = 0;
layout->row.item_height = 0;
layout->row.item_offset = 0;
layout->row.filled = 0;
layout->row.item.x = 0;
layout->row.item.y = 0;
layout->row.item.w = 0;
layout->row.item.h = 0;
}
NK_API void
nk_layout_row_template_push_dynamic(struct nk_context *ctx)
{
struct nk_window *win;
struct nk_panel *layout;
NK_ASSERT(ctx);
NK_ASSERT(ctx->current);
NK_ASSERT(ctx->current->layout);
if (!ctx || !ctx->current || !ctx->current->layout)
return;
win = ctx->current;
layout = win->layout;
NK_ASSERT(layout->row.type == NK_LAYOUT_TEMPLATE);
NK_ASSERT(layout->row.columns < NK_MAX_LAYOUT_ROW_TEMPLATE_COLUMNS);
if (layout->row.type != NK_LAYOUT_TEMPLATE) return;
if (layout->row.columns >= NK_MAX_LAYOUT_ROW_TEMPLATE_COLUMNS) return;
layout->row.templates[layout->row.columns++] = -1.0f;
}
NK_API void
nk_layout_row_template_push_variable(struct nk_context *ctx, float min_width)
{
struct nk_window *win;
struct nk_panel *layout;
NK_ASSERT(ctx);
NK_ASSERT(ctx->current);
NK_ASSERT(ctx->current->layout);
if (!ctx || !ctx->current || !ctx->current->layout)
return;
win = ctx->current;
layout = win->layout;
NK_ASSERT(layout->row.type == NK_LAYOUT_TEMPLATE);
NK_ASSERT(layout->row.columns < NK_MAX_LAYOUT_ROW_TEMPLATE_COLUMNS);
if (layout->row.type != NK_LAYOUT_TEMPLATE) return;
if (layout->row.columns >= NK_MAX_LAYOUT_ROW_TEMPLATE_COLUMNS) return;
layout->row.templates[layout->row.columns++] = -min_width;
}
NK_API void
nk_layout_row_template_push_static(struct nk_context *ctx, float width)
{
struct nk_window *win;
struct nk_panel *layout;
NK_ASSERT(ctx);
NK_ASSERT(ctx->current);
NK_ASSERT(ctx->current->layout);
if (!ctx || !ctx->current || !ctx->current->layout)
return;
win = ctx->current;
layout = win->layout;
NK_ASSERT(layout->row.type == NK_LAYOUT_TEMPLATE);
NK_ASSERT(layout->row.columns < NK_MAX_LAYOUT_ROW_TEMPLATE_COLUMNS);
if (layout->row.type != NK_LAYOUT_TEMPLATE) return;
if (layout->row.columns >= NK_MAX_LAYOUT_ROW_TEMPLATE_COLUMNS) return;
layout->row.templates[layout->row.columns++] = width;
}
NK_API void
nk_layout_row_template_end(struct nk_context *ctx)
{
struct nk_window *win;
struct nk_panel *layout;
NK_ASSERT(ctx);
NK_ASSERT(ctx->current);
NK_ASSERT(ctx->current->layout);
if (!ctx || !ctx->current || !ctx->current->layout)
return;
win = ctx->current;
layout = win->layout;
NK_ASSERT(layout->row.type == NK_LAYOUT_TEMPLATE);
if (layout->row.type != NK_LAYOUT_TEMPLATE) return;
{int i = 0;
int variable_count = 0;
int min_variable_count = 0;
float min_fixed_width = 0.0f;
float total_fixed_width = 0.0f;
float max_variable_width = 0.0f;
for (i = 0; i < layout->row.columns; ++i) {
float width = layout->row.templates[i];
if (width >= 0.0f) {
total_fixed_width += width;
min_fixed_width += width;
} else if (width < -1.0f) {
width = -width;
total_fixed_width += width;
max_variable_width = NK_MAX(max_variable_width, width);
variable_count++;
} else {
min_variable_count++;
variable_count++;
}
}
if (variable_count) {
float space = nk_layout_row_calculate_usable_space(&ctx->style, layout->type,
layout->bounds.w, layout->row.columns);
float var_width = (NK_MAX(space-min_fixed_width,0.0f)) / (float)variable_count;
int enough_space = var_width >= max_variable_width;
if (!enough_space)
var_width = (NK_MAX(space-total_fixed_width,0)) / (float)min_variable_count;
for (i = 0; i < layout->row.columns; ++i) {
float *width = &layout->row.templates[i];
*width = (*width >= 0.0f)? *width: (*width < -1.0f && !enough_space)? -(*width): var_width;
}
}}
}
NK_API void
nk_layout_space_begin(struct nk_context *ctx, enum nk_layout_format fmt,
float height, int widget_count)
@ -18101,8 +18286,8 @@ nk_layout_space_to_screen(struct nk_context *ctx, struct nk_vec2 ret)
win = ctx->current;
layout = win->layout;
ret.x += layout->at_x - *layout->offset_x;
ret.y += layout->at_y - *layout->offset_y;
ret.x += layout->at_x - (float)*layout->offset_x;
ret.y += layout->at_y - (float)*layout->offset_y;
return ret;
}
@ -18118,8 +18303,8 @@ nk_layout_space_to_local(struct nk_context *ctx, struct nk_vec2 ret)
win = ctx->current;
layout = win->layout;
ret.x += -layout->at_x + *layout->offset_x;
ret.y += -layout->at_y + *layout->offset_y;
ret.x += -layout->at_x + (float)*layout->offset_x;
ret.y += -layout->at_y + (float)*layout->offset_y;
return ret;
}
@ -18135,8 +18320,8 @@ nk_layout_space_rect_to_screen(struct nk_context *ctx, struct nk_rect ret)
win = ctx->current;
layout = win->layout;
ret.x += layout->at_x - *layout->offset_x;
ret.y += layout->at_y - *layout->offset_y;
ret.x += layout->at_x - (float)*layout->offset_x;
ret.y += layout->at_y - (float)*layout->offset_y;
return ret;
}
@ -18152,8 +18337,8 @@ nk_layout_space_rect_to_local(struct nk_context *ctx, struct nk_rect ret)
win = ctx->current;
layout = win->layout;
ret.x += -layout->at_x + *layout->offset_x;
ret.y += -layout->at_y + *layout->offset_y;
ret.x += -layout->at_x + (float)*layout->offset_x;
ret.y += -layout->at_y + (float)*layout->offset_y;
return ret;
}
@ -18176,13 +18361,7 @@ nk_layout_widget_space(struct nk_rect *bounds, const struct nk_context *ctx,
float item_offset = 0;
float item_width = 0;
float item_spacing = 0;
float panel_padding;
float panel_spacing;
float panel_space;
struct nk_vec2 spacing;
struct nk_vec2 padding;
float panel_space = 0;
NK_ASSERT(ctx);
NK_ASSERT(ctx->current);
@ -18191,18 +18370,16 @@ nk_layout_widget_space(struct nk_rect *bounds, const struct nk_context *ctx,
return;
win = ctx->current;
style = &ctx->style;
layout = win->layout;
style = &ctx->style;
NK_ASSERT(bounds);
/* cache some configuration data */
spacing = ctx->style.window.spacing;
struct nk_vec2 spacing;
struct nk_vec2 padding;
spacing = style->window.spacing;
padding = nk_panel_get_padding(style, layout->type);
/* calculate the usable panel space */
panel_padding = 2 * padding.x;
panel_spacing = (float)(layout->row.columns - 1) * spacing.x;
panel_space = layout->bounds.w - panel_padding - panel_spacing;
panel_space = nk_layout_row_calculate_usable_space(&ctx->style, layout->type,
layout->bounds.w, layout->row.columns);
/* calculate the width of one item inside the current layout space */
switch (layout->row.type) {
@ -18227,13 +18404,13 @@ nk_layout_widget_space(struct nk_rect *bounds, const struct nk_context *ctx,
case NK_LAYOUT_DYNAMIC_FREE: {
/* panel width depended free widget placing */
bounds->x = layout->at_x + (layout->bounds.w * layout->row.item.x);
bounds->x -= *layout->offset_x;
bounds->x -= (float)*layout->offset_x;
bounds->y = layout->at_y + (layout->row.height * layout->row.item.y);
bounds->y -= *layout->offset_y;
bounds->y -= (float)*layout->offset_y;
bounds->w = layout->bounds.w * layout->row.item.w;
bounds->h = layout->row.height * layout->row.item.h;
return;
};
} break;
case NK_LAYOUT_DYNAMIC: {
/* scaling arrays of panel width ratios for every widget */
float ratio;
@ -18269,12 +18446,12 @@ nk_layout_widget_space(struct nk_rect *bounds, const struct nk_context *ctx,
bounds->w = layout->row.item.w;
if (((bounds->x + bounds->w) > layout->max_x) && modify)
layout->max_x = (bounds->x + bounds->w);
bounds->x -= *layout->offset_x;
bounds->x -= (float)*layout->offset_x;
bounds->y = layout->at_y + layout->row.item.y;
bounds->y -= *layout->offset_y;
bounds->y -= (float)*layout->offset_y;
bounds->h = layout->row.item.h;
return;
};
} break;
case NK_LAYOUT_STATIC: {
/* non-scaling array of panel pixel width for every widget */
item_spacing = (float)layout->row.index * spacing.x;
@ -18282,17 +18459,26 @@ nk_layout_widget_space(struct nk_rect *bounds, const struct nk_context *ctx,
item_offset = layout->row.item_offset;
if (modify) layout->row.item_offset += item_width;
} break;
case NK_LAYOUT_TEMPLATE: {
/* stretchy row layout with combined dynamic/static widget width*/
NK_ASSERT(layout->row.index < layout->row.columns);
NK_ASSERT(layout->row.index < NK_MAX_LAYOUT_ROW_TEMPLATE_COLUMNS);
item_width = layout->row.templates[layout->row.index];
item_offset = layout->row.item_offset;
item_spacing = (float)layout->row.index * spacing.x;
if (modify) layout->row.item_offset += item_width;
} break;
default: NK_ASSERT(0); break;
};
/* set the bounds of the newly allocated widget */
bounds->w = item_width;
bounds->h = layout->row.height - spacing.y;
bounds->y = layout->at_y - *layout->offset_y;
bounds->y = layout->at_y - (float)*layout->offset_y;
bounds->x = layout->at_x + item_offset + item_spacing + padding.x;
if (((bounds->x + bounds->w) > layout->max_x) && modify)
layout->max_x = bounds->x + bounds->w;
bounds->x -= *layout->offset_x;
bounds->x -= (float)*layout->offset_x;
}
NK_INTERN void
@ -18441,7 +18627,7 @@ nk_tree_state_base(struct nk_context *ctx, enum nk_tree_type type,
/* increase x-axis cursor widget position pointer */
if (*state == NK_MAXIMIZED) {
layout->at_x = header.x + *layout->offset_x + style->tab.indent;
layout->at_x = header.x + (float)*layout->offset_x + style->tab.indent;
layout->bounds.w = NK_MAX(layout->bounds.w, style->tab.indent);
layout->bounds.w -= (style->tab.indent + style->window.padding.x);
layout->row.tree_depth++;
@ -20504,7 +20690,7 @@ nk_list_view_begin(struct nk_context *ctx, struct nk_list_view *view,
layout = win->layout;
view->total_height = row_height * NK_MAX(row_count,1);
view->begin = (int)NK_MAX((view->scroll_value / (float)row_height), 0.0f);
view->begin = (int)NK_MAX(((float)view->scroll_value / (float)row_height), 0.0f);
view->count = (int)NK_MAX(nk_iceilf((layout->clip.h)/(float)row_height), 0);
view->end = view->begin + view->count;
view->ctx = ctx;