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buffer space <-> layout space conversions; on screen range and height in text layout

master
Allen Webster 2019-03-31 23:40:24 -07:00
parent afc46f615f
commit 5fc89ba45a
8 changed files with 87 additions and 26 deletions
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5
4coder_base_types.cpp
View File

@ -1034,6 +1034,11 @@ rect_width(f32_Rect rect){
return(rect.x1 - rect.x0);
}
static Vec2
rect_dim(f32_Rect rect){
return(V2(rect.x1 - rect.x0, rect.y1 - rect.y0));
}
static i32_Rect
intersection_of(i32_Rect a, i32_Rect b)
{

30
4coder_default_hooks.cpp
View File

@ -333,6 +333,16 @@ buffer_position_from_scroll_position(Application_Links *app, View_ID view_id, Ve
return(result);
}
static i32
abs_position_from_buffer_point(Application_Links *app, View_ID view_id, Buffer_Point buffer_point){
Full_Cursor cursor = {};
view_compute_cursor(app, view_id, seek_line_char(buffer_point.line_number, 0), &cursor);
view_compute_cursor(app, view_id, seek_wrapped_xy(buffer_point.pixel_shift.x,
buffer_point.pixel_shift.y + cursor.wrapped_y, false),
&cursor);
return(cursor.pos);
}
static void
default_buffer_render_caller(Application_Links *app, Frame_Info frame_info, View_ID view_id, Rect_i32 view_inner_rect){
Buffer_ID buffer_id = 0;
@ -340,22 +350,22 @@ default_buffer_render_caller(Application_Links *app, Frame_Info frame_info, View
Rect_i32 sub_region = i32R(0, 0, rect_width(view_inner_rect), rect_height(view_inner_rect));
sub_region = default_view_buffer_region(app, view_id, sub_region);
Rect_i32 buffer_rect = {};
buffer_rect.p0 = view_inner_rect.p0 + sub_region.p0;
buffer_rect.p1 = view_inner_rect.p0 + sub_region.p1;
buffer_rect.x1 = clamp_top(buffer_rect.x1, view_inner_rect.x1);
buffer_rect.y1 = clamp_top(buffer_rect.y1, view_inner_rect.y1);
buffer_rect.x0 = clamp_top(buffer_rect.x0, buffer_rect.x1);
buffer_rect.y0 = clamp_top(buffer_rect.y0, buffer_rect.y1);
Rect_f32 buffer_rect = {};
buffer_rect.p0 = V2(view_inner_rect.p0 + sub_region.p0);
buffer_rect.p1 = V2(view_inner_rect.p0 + sub_region.p1);
buffer_rect = intersection_of(buffer_rect, f32R(view_inner_rect));
GUI_Scroll_Vars scroll = {};
view_get_scroll_vars(app, view_id, &scroll);
Buffer_Point buffer_point = buffer_position_from_scroll_position(app, view_id, scroll.scroll_p);
Range on_screen_range = {};
Text_Layout_ID text_layout_id = 0;
compute_render_layout(app, view_id, buffer_id, buffer_rect, buffer_point,
&on_screen_range, &text_layout_id);
compute_render_layout(app, view_id, buffer_id, buffer_rect.p0, rect_dim(buffer_rect), buffer_point,
max_i32, &text_layout_id);
Range on_screen_range = {};
text_layout_get_on_screen_range(app, view_id, &on_screen_range);
View_Summary view = get_view(app, view_id, AccessAll);
Buffer_Summary buffer = get_buffer(app, view.buffer_id, AccessAll);

20
4coder_generated/app_functions.h
View File

@ -171,8 +171,10 @@ struct Application_Links;
#define TEXT_LAYOUT_GET_BUFFER_SIG(n) b32 n(Application_Links *app, Text_Layout_ID text_layout_id, Buffer_ID *buffer_id_out)
#define TEXT_LAYOUT_BUFFER_POINT_TO_LAYOUT_POINT_SIG(n) b32 n(Application_Links *app, Text_Layout_ID text_layout_id, Vec2 buffer_relative_p, Vec2 *p_out)
#define TEXT_LAYOUT_LAYOUT_POINT_TO_BUFFER_POINT_SIG(n) b32 n(Application_Links *app, Text_Layout_ID text_layout_id, Vec2 layout_relative_p, Vec2 *p_out)
#define TEXT_LAYOUT_GET_ON_SCREEN_RANGE_SIG(n) b32 n(Application_Links *app, Text_Layout_ID text_layout_id, Range *on_screen_range_out)
#define TEXT_LAYOUT_GET_HEIGHT_SIG(n) b32 n(Application_Links *app, Text_Layout_ID text_layout_id, f32 *height_out)
#define TEXT_LAYOUT_FREE_SIG(n) b32 n(Application_Links *app, Text_Layout_ID text_layout_id)
#define COMPUTE_RENDER_LAYOUT_SIG(n) b32 n(Application_Links *app, View_ID view_id, Buffer_ID buffer_id, Rect_i32 screen_rect, Buffer_Point buffer_point, Range *on_screen_range_out, Text_Layout_ID *text_layout_id_out)
#define COMPUTE_RENDER_LAYOUT_SIG(n) b32 n(Application_Links *app, View_ID view_id, Buffer_ID buffer_id, Vec2 screen_p, Vec2 layout_dim, Buffer_Point buffer_point, i32 one_past_last, Text_Layout_ID *text_layout_id_out)
#define DRAW_RENDER_LAYOUT_SIG(n) void n(Application_Links *app, View_ID view_id)
#define OPEN_COLOR_PICKER_SIG(n) void n(Application_Links *app, color_picker *picker)
#define ANIMATE_IN_N_MILLISECONDS_SIG(n) void n(Application_Links *app, u32 n)
@ -350,6 +352,8 @@ typedef GET_DEFAULT_FONT_FOR_VIEW_SIG(Get_Default_Font_For_View_Function);
typedef TEXT_LAYOUT_GET_BUFFER_SIG(Text_Layout_Get_Buffer_Function);
typedef TEXT_LAYOUT_BUFFER_POINT_TO_LAYOUT_POINT_SIG(Text_Layout_Buffer_Point_To_Layout_Point_Function);
typedef TEXT_LAYOUT_LAYOUT_POINT_TO_BUFFER_POINT_SIG(Text_Layout_Layout_Point_To_Buffer_Point_Function);
typedef TEXT_LAYOUT_GET_ON_SCREEN_RANGE_SIG(Text_Layout_Get_On_Screen_Range_Function);
typedef TEXT_LAYOUT_GET_HEIGHT_SIG(Text_Layout_Get_Height_Function);
typedef TEXT_LAYOUT_FREE_SIG(Text_Layout_Free_Function);
typedef COMPUTE_RENDER_LAYOUT_SIG(Compute_Render_Layout_Function);
typedef DRAW_RENDER_LAYOUT_SIG(Draw_Render_Layout_Function);
@ -531,6 +535,8 @@ Get_Default_Font_For_View_Function *get_default_font_for_view;
Text_Layout_Get_Buffer_Function *text_layout_get_buffer;
Text_Layout_Buffer_Point_To_Layout_Point_Function *text_layout_buffer_point_to_layout_point;
Text_Layout_Layout_Point_To_Buffer_Point_Function *text_layout_layout_point_to_buffer_point;
Text_Layout_Get_On_Screen_Range_Function *text_layout_get_on_screen_range;
Text_Layout_Get_Height_Function *text_layout_get_height;
Text_Layout_Free_Function *text_layout_free;
Compute_Render_Layout_Function *compute_render_layout;
Draw_Render_Layout_Function *draw_render_layout;
@ -711,6 +717,8 @@ Get_Default_Font_For_View_Function *get_default_font_for_view_;
Text_Layout_Get_Buffer_Function *text_layout_get_buffer_;
Text_Layout_Buffer_Point_To_Layout_Point_Function *text_layout_buffer_point_to_layout_point_;
Text_Layout_Layout_Point_To_Buffer_Point_Function *text_layout_layout_point_to_buffer_point_;
Text_Layout_Get_On_Screen_Range_Function *text_layout_get_on_screen_range_;
Text_Layout_Get_Height_Function *text_layout_get_height_;
Text_Layout_Free_Function *text_layout_free_;
Compute_Render_Layout_Function *compute_render_layout_;
Draw_Render_Layout_Function *draw_render_layout_;
@ -899,6 +907,8 @@ app_links->get_default_font_for_view_ = Get_Default_Font_For_View;\
app_links->text_layout_get_buffer_ = Text_Layout_Get_Buffer;\
app_links->text_layout_buffer_point_to_layout_point_ = Text_Layout_Buffer_Point_To_Layout_Point;\
app_links->text_layout_layout_point_to_buffer_point_ = Text_Layout_Layout_Point_To_Buffer_Point;\
app_links->text_layout_get_on_screen_range_ = Text_Layout_Get_On_Screen_Range;\
app_links->text_layout_get_height_ = Text_Layout_Get_Height;\
app_links->text_layout_free_ = Text_Layout_Free;\
app_links->compute_render_layout_ = Compute_Render_Layout;\
app_links->draw_render_layout_ = Draw_Render_Layout;\
@ -1079,8 +1089,10 @@ static Face_ID get_default_font_for_view(Application_Links *app, View_ID view_id
static b32 text_layout_get_buffer(Application_Links *app, Text_Layout_ID text_layout_id, Buffer_ID *buffer_id_out){return(app->text_layout_get_buffer(app, text_layout_id, buffer_id_out));}
static b32 text_layout_buffer_point_to_layout_point(Application_Links *app, Text_Layout_ID text_layout_id, Vec2 buffer_relative_p, Vec2 *p_out){return(app->text_layout_buffer_point_to_layout_point(app, text_layout_id, buffer_relative_p, p_out));}
static b32 text_layout_layout_point_to_buffer_point(Application_Links *app, Text_Layout_ID text_layout_id, Vec2 layout_relative_p, Vec2 *p_out){return(app->text_layout_layout_point_to_buffer_point(app, text_layout_id, layout_relative_p, p_out));}
static b32 text_layout_get_on_screen_range(Application_Links *app, Text_Layout_ID text_layout_id, Range *on_screen_range_out){return(app->text_layout_get_on_screen_range(app, text_layout_id, on_screen_range_out));}
static b32 text_layout_get_height(Application_Links *app, Text_Layout_ID text_layout_id, f32 *height_out){return(app->text_layout_get_height(app, text_layout_id, height_out));}
static b32 text_layout_free(Application_Links *app, Text_Layout_ID text_layout_id){return(app->text_layout_free(app, text_layout_id));}
static b32 compute_render_layout(Application_Links *app, View_ID view_id, Buffer_ID buffer_id, Rect_i32 screen_rect, Buffer_Point buffer_point, Range *on_screen_range_out, Text_Layout_ID *text_layout_id_out){return(app->compute_render_layout(app, view_id, buffer_id, screen_rect, buffer_point, on_screen_range_out, text_layout_id_out));}
static b32 compute_render_layout(Application_Links *app, View_ID view_id, Buffer_ID buffer_id, Vec2 screen_p, Vec2 layout_dim, Buffer_Point buffer_point, i32 one_past_last, Text_Layout_ID *text_layout_id_out){return(app->compute_render_layout(app, view_id, buffer_id, screen_p, layout_dim, buffer_point, one_past_last, text_layout_id_out));}
static void draw_render_layout(Application_Links *app, View_ID view_id){(app->draw_render_layout(app, view_id));}
static void open_color_picker(Application_Links *app, color_picker *picker){(app->open_color_picker(app, picker));}
static void animate_in_n_milliseconds(Application_Links *app, u32 n){(app->animate_in_n_milliseconds(app, n));}
@ -1259,8 +1271,10 @@ static Face_ID get_default_font_for_view(Application_Links *app, View_ID view_id
static b32 text_layout_get_buffer(Application_Links *app, Text_Layout_ID text_layout_id, Buffer_ID *buffer_id_out){return(app->text_layout_get_buffer_(app, text_layout_id, buffer_id_out));}
static b32 text_layout_buffer_point_to_layout_point(Application_Links *app, Text_Layout_ID text_layout_id, Vec2 buffer_relative_p, Vec2 *p_out){return(app->text_layout_buffer_point_to_layout_point_(app, text_layout_id, buffer_relative_p, p_out));}
static b32 text_layout_layout_point_to_buffer_point(Application_Links *app, Text_Layout_ID text_layout_id, Vec2 layout_relative_p, Vec2 *p_out){return(app->text_layout_layout_point_to_buffer_point_(app, text_layout_id, layout_relative_p, p_out));}
static b32 text_layout_get_on_screen_range(Application_Links *app, Text_Layout_ID text_layout_id, Range *on_screen_range_out){return(app->text_layout_get_on_screen_range_(app, text_layout_id, on_screen_range_out));}
static b32 text_layout_get_height(Application_Links *app, Text_Layout_ID text_layout_id, f32 *height_out){return(app->text_layout_get_height_(app, text_layout_id, height_out));}
static b32 text_layout_free(Application_Links *app, Text_Layout_ID text_layout_id){return(app->text_layout_free_(app, text_layout_id));}
static b32 compute_render_layout(Application_Links *app, View_ID view_id, Buffer_ID buffer_id, Rect_i32 screen_rect, Buffer_Point buffer_point, Range *on_screen_range_out, Text_Layout_ID *text_layout_id_out){return(app->compute_render_layout_(app, view_id, buffer_id, screen_rect, buffer_point, on_screen_range_out, text_layout_id_out));}
static b32 compute_render_layout(Application_Links *app, View_ID view_id, Buffer_ID buffer_id, Vec2 screen_p, Vec2 layout_dim, Buffer_Point buffer_point, i32 one_past_last, Text_Layout_ID *text_layout_id_out){return(app->compute_render_layout_(app, view_id, buffer_id, screen_p, layout_dim, buffer_point, one_past_last, text_layout_id_out));}
static void draw_render_layout(Application_Links *app, View_ID view_id){(app->draw_render_layout_(app, view_id));}
static void open_color_picker(Application_Links *app, color_picker *picker){(app->open_color_picker_(app, picker));}
static void animate_in_n_milliseconds(Application_Links *app, u32 n){(app->animate_in_n_milliseconds_(app, n));}

50
4ed_api_implementation.cpp
View File

@ -4664,6 +4664,30 @@ Text_Layout_Layout_Point_To_Buffer_Point(Application_Links *app, Text_Layout_ID
return(result);
}
API_EXPORT b32
Text_Layout_Get_On_Screen_Range(Application_Links *app, Text_Layout_ID text_layout_id, Range *on_screen_range_out){
Models *models = (Models*)app->cmd_context;
Text_Layout layout = {};
b32 result = false;
if (text_layout_get(&models->text_layouts, text_layout_id, &layout)){
*on_screen_range_out = layout.on_screen_range;
result = true;
}
return(result);
}
API_EXPORT b32
Text_Layout_Get_Height(Application_Links *app, Text_Layout_ID text_layout_id, f32 *height_out){
Models *models = (Models*)app->cmd_context;
Text_Layout layout = {};
b32 result = false;
if (text_layout_get(&models->text_layouts, text_layout_id, &layout)){
*height_out = layout.height;
result = true;
}
return(result);
}
API_EXPORT b32
Text_Layout_Free(Application_Links *app, Text_Layout_ID text_layout_id){
Models *models = (Models*)app->cmd_context;
@ -4671,22 +4695,22 @@ Text_Layout_Free(Application_Links *app, Text_Layout_ID text_layout_id){
}
API_EXPORT b32
Compute_Render_Layout(Application_Links *app, View_ID view_id, Buffer_ID buffer_id, Rect_i32 screen_rect, Buffer_Point buffer_point, Range *on_screen_range_out, Text_Layout_ID *text_layout_id_out){
Compute_Render_Layout(Application_Links *app, View_ID view_id, Buffer_ID buffer_id, Vec2 screen_p, Vec2 layout_dim, Buffer_Point buffer_point, i32 one_past_last, Text_Layout_ID *text_layout_id_out){
Models *models = (Models*)app->cmd_context;
System_Functions *system = models->system;
View *view = imp_get_view(models, view_id);
Editing_File *file = imp_get_file(models, buffer_id);
b32 result = false;
if (view_api_check_view(view) && buffer_api_check_file(file)){
i32 line_height = view->line_height;
f32 line_height = (f32)view->line_height;
f32 max_x = (f32)file->settings.display_width;
i32 max_y = screen_rect.y1 - screen_rect.y0 + line_height;
f32 max_y = layout_dim.y + line_height;
f32 left_side_space = 0;
// TODO(allen): Don't force me to over-allocate! Write a looser buffer render thingy.
f32 screen_width = (f32)rect_width(screen_rect);
f32 screen_height = (f32)rect_height(screen_rect);
f32 screen_width = layout_dim.x;
f32 screen_height = layout_dim.y;
f32 smallest_char_width = 6.f;
f32 smallest_char_height = 8.f;
i32 max = (i32)(screen_width*screen_height/(smallest_char_width*smallest_char_height))*2;
@ -4727,8 +4751,8 @@ Compute_Render_Layout(Application_Links *app, View_ID view_id, Buffer_ID buffer_
params.items = items;
params.max = max;
params.count = &item_count;
params.port_x = (f32)screen_rect.x0 + left_side_space;
params.port_y = (f32)screen_rect.y0;
params.port_x = (f32)screen_p.x + left_side_space;
params.port_y = (f32)screen_p.y;
params.clip_w = view_width(models, view) - left_side_space;
params.scroll_x = scroll_x;
params.scroll_y = scroll_y;
@ -4740,6 +4764,7 @@ Compute_Render_Layout(Application_Links *app, View_ID view_id, Buffer_ID buffer_
params.font = font;
params.virtual_white = file->settings.virtual_white;
params.wrap_slashes = file->settings.wrap_indicator;
params.one_past_last_abs_pos = one_past_last;
Buffer_Render_State state = {};
Buffer_Layout_Stop stop = {};
@ -4791,17 +4816,18 @@ Compute_Render_Layout(Application_Links *app, View_ID view_id, Buffer_ID buffer_
Range range = {render_cursor.pos, end_pos};
view->render.view_rect = view->panel->rect_inner;
view->render.buffer_rect = screen_rect;
view->render.buffer_rect = i32R(f32R(screen_p.x, screen_p.y,
screen_p.x + layout_dim.x, screen_p.y + layout_dim.y));
view->render.cursor = render_cursor;
view->render.range = range;
view->render.items = items;
view->render.item_count = item_count;
if (on_screen_range_out != 0){
*on_screen_range_out = range;
}
if (text_layout_id_out != 0){
*text_layout_id_out = text_layout_new(&models->mem.heap, &models->text_layouts, buffer_id, buffer_point);
Buffer_Render_Item *render_item_first = items;
Buffer_Render_Item *render_item_last = items + item_count - 1;
f32 height = render_item_last->y1 - render_item_first->y0;
*text_layout_id_out = text_layout_new(&models->mem.heap, &models->text_layouts, buffer_id, buffer_point, range, height);
}
}
return(result);

1
4ed_buffer.cpp
View File

@ -1660,6 +1660,7 @@ buffer_render_data(Buffer_Render_State *S_ptr, Buffer_Render_Params params, f32
}
S.size = buffer_size(params.buffer);
S.size = Min(S.size, params.one_past_last_abs_pos);
S.shift_x = params.port_x - params.scroll_x;
S.shift_y = params.port_y - params.scroll_y;

1
4ed_buffer.h
View File

@ -203,6 +203,7 @@ struct Buffer_Render_Params{
Font_Pointers font;
b32 virtual_white;
i32 wrap_slashes;
i32 one_past_last_abs_pos;
};
struct Buffer_Render_State{

4
4ed_text_layout.cpp
View File

@ -28,10 +28,12 @@ text_layout_new__alloc_layout(Text_Layout_Container *container){
}
internal Text_Layout_ID
text_layout_new(Heap *heap, Text_Layout_Container *container, Buffer_ID buffer_id, Buffer_Point point){
text_layout_new(Heap *heap, Text_Layout_Container *container, Buffer_ID buffer_id, Buffer_Point point, Range on_screen_range, f32 height){
Text_Layout *new_layout_data = text_layout_new__alloc_layout(container);
new_layout_data->buffer_id = buffer_id;
new_layout_data->point = point;
new_layout_data->on_screen_range = on_screen_range;
new_layout_data->height = height;
Text_Layout_ID new_id = ++container->id_counter;
insert_u32_Ptr_table(heap, &container->table, new_id, new_layout_data);
return(new_id);

2
4ed_text_layout.h
View File

@ -21,6 +21,8 @@ struct Text_Layout{
// system that attempts to query the layout for hit testing.
Buffer_ID buffer_id;
Buffer_Point point;
Range on_screen_range;
f32 height;
};
union Text_Layout_Node{