From 5edbd93d26510ef62fccfe55e2e54d675dd4e20c Mon Sep 17 00:00:00 2001
From: Allen Webster <yoyo4thdimention@gmail.com>
Date: Sat, 5 Oct 2019 23:59:35 -0700
Subject: [PATCH] Cleaning up euclidean space types; simplifying some rendering
 stuff

---
 4ed.cpp                                   |   4 +-
 4ed_api_implementation.cpp                |  72 ++++++-----
 4ed_layout.cpp                            |  12 +-
 4ed_render_target.cpp                     |  54 ++++----
 4ed_render_target.h                       |   4 +-
 custom/4coder_base_types.cpp              | 146 ++++++++++++++++++++--
 custom/4coder_base_types.h                |   9 +-
 custom/4coder_default_hooks.cpp           |  12 +-
 custom/4coder_helper.cpp                  |  31 ++---
 custom/4coder_search.cpp                  |   6 +-
 custom/4coder_string_match.cpp            |   4 +-
 custom/4coder_ui_helper.cpp               |  30 +----
 custom/generated/custom_api.cpp           |   2 +
 custom/generated/custom_api.h             |  23 ++--
 custom/generated/custom_api_master_list.h |   7 +-
 platform_win32/win32_4ed.cpp              |  24 +---
 16 files changed, 267 insertions(+), 173 deletions(-)

diff --git a/4ed.cpp b/4ed.cpp
index 3374cf51..602e5fb9 100644
--- a/4ed.cpp
+++ b/4ed.cpp
@@ -1058,8 +1058,8 @@ App_Step_Sig(app_step){
         input->keys.keys[input->keys.count++] = mouse_event;
     }
     if (input->mouse.p != models->prev_p){
-        b32 was_in_window = rect_contains_point(i32R(0, 0, prev_dim.x, prev_dim.y), models->prev_p);
-        b32 is_in_window  = rect_contains_point(i32R(0, 0, current_dim.x, current_dim.y), input->mouse.p);
+        b32 was_in_window = rect_contains_point(Ri32(0, 0, prev_dim.x, prev_dim.y), models->prev_p);
+        b32 is_in_window  = rect_contains_point(Ri32(0, 0, current_dim.x, current_dim.y), input->mouse.p);
         if (is_in_window || was_in_window){
             mouse_event.keycode = key_mouse_move;
             input->keys.keys[input->keys.count++] = mouse_event;
diff --git a/4ed_api_implementation.cpp b/4ed_api_implementation.cpp
index 331464f3..814f1327 100644
--- a/4ed_api_implementation.cpp
+++ b/4ed_api_implementation.cpp
@@ -272,7 +272,7 @@ buffer_seek_string(Application_Links *app, Buffer_ID buffer, String_Const_u8 nee
     if (api_check_buffer(file)){
         if (needle.size == 0){
             result.flags = StringMatch_CaseSensitive;
-            result.range = make_range_i64(start_pos);
+            result.range = Ii64(start_pos);
         }
         else{
             Scratch_Block scratch(app);
@@ -283,12 +283,12 @@ buffer_seek_string(Application_Links *app, Buffer_ID buffer, String_Const_u8 nee
             if (direction == Scan_Forward){
                 i64 adjusted_pos = start_pos + 1;
                 start_pos = clamp_top(adjusted_pos, size);
-                range = make_range_i64(adjusted_pos, size);
+                range = Ii64(adjusted_pos, size);
             }
             else{
                 i64 adjusted_pos = start_pos - 1 + needle.size;
                 start_pos = clamp_bot(0, adjusted_pos);
-                range = make_range_i64(0, adjusted_pos);
+                range = Ii64(0, adjusted_pos);
             }
             buffer_chunks_clamp(&chunks, range);
             if (chunks.first != 0){
@@ -348,13 +348,13 @@ buffer_seek_character_class(Application_Links *app, Buffer_ID buffer, Character_
                     break;
                 }
                 else if (past_end == 1){
-                    result.range = make_range_i64(size);
+                    result.range = Ii64(size);
                     break;
                 }
                 u8 v = chunks.vals[pos.chunk_index].str[pos.chunk_pos];
                 if (character_predicate_check_character(*predicate, v)){
                     result.buffer = buffer;
-                    result.range = make_range_i64(pos.real_pos, pos.real_pos + 1);
+                    result.range = Ii64(pos.real_pos, pos.real_pos + 1);
                     break;
                 }
             }
@@ -1156,7 +1156,7 @@ view_get_screen_rect(Application_Links *app, View_ID view_id){
     Rect_f32 result = {};
     View *view = imp_get_view(models, view_id);
     if (api_check_view(view)){
-        result = f32R(view->panel->rect_full);
+        result = Rf32(view->panel->rect_full);
     }
     return(result);
 }
@@ -2713,8 +2713,8 @@ draw_helper__models_space_to_screen_space(Models *models, Vec2 point){
     return(point + c);
 }
 
-function f32_Rect
-draw_helper__models_space_to_screen_space(Models *models, f32_Rect rect){
+function Rect_f32
+draw_helper__models_space_to_screen_space(Models *models, Rect_f32 rect){
     Vec2 c = models_get_coordinate_center(models);
     rect.p0 += c;
     rect.p1 += c;
@@ -2779,7 +2779,7 @@ draw_clip_push(Application_Links *app, Rect_f32 clip_box){
     draw_push_clip(models->target, Ri32(clip_box));
 }
 
-api(custom) function f32_Rect
+api(custom) function Rect_f32
 draw_clip_pop(Application_Links *app){
     Models *models = (Models*)app->cmd_context;
     return(Rf32(draw_pop_clip(models->target)));
@@ -2848,14 +2848,24 @@ text_layout_create(Application_Links *app, Buffer_ID buffer_id, Rect_f32 rect, B
     return(result);
 }
 
-api(custom) function b32
-text_layout_get_buffer(Application_Links *app, Text_Layout_ID text_layout_id, Buffer_ID *buffer_id_out){
+api(custom) function Rect_f32
+text_layout_region(Application_Links *app, Text_Layout_ID text_layout_id){
     Models *models = (Models*)app->cmd_context;
-    b32 result = false;
+    Rect_f32 result = {};
     Text_Layout *layout = text_layout_get(&models->text_layouts, text_layout_id);
     if (layout != 0){
-        *buffer_id_out = layout->buffer_id;
-        result = true;
+        result = layout->rect;
+    }
+    return(result);
+}
+
+api(custom) function Buffer_ID
+text_layout_get_buffer(Application_Links *app, Text_Layout_ID text_layout_id){
+    Models *models = (Models*)app->cmd_context;
+    Buffer_ID result = 0;
+    Text_Layout *layout = text_layout_get(&models->text_layouts, text_layout_id);
+    if (layout != 0){
+        result = layout->buffer_id;
     }
     return(result);
 }
@@ -2871,41 +2881,43 @@ text_layout_get_visible_range(Application_Links *app, Text_Layout_ID text_layout
     return(result);
 }
 
-api(custom) function Rect_f32
+api(custom) function Range_f32
 text_layout_line_on_screen(Application_Links *app, Text_Layout_ID layout_id, i64 line_number){
     Models *models = (Models*)app->cmd_context;
-    Rect_f32 result = {};
+    Range_f32 result = {};
     Text_Layout *layout = text_layout_get(&models->text_layouts, layout_id);
-    if (layout != 0 && range_contains_inclusive(layout->visible_line_number_range, line_number)){
+    if (layout == 0){
+        return(result);
+    }
+    Rect_f32 rect = layout->rect;
+    if (range_contains_inclusive(layout->visible_line_number_range, line_number)){
         Editing_File *file = imp_get_file(models, layout->buffer_id);
         if (api_check_buffer(file)){
-            Rect_f32 rect = layout->rect;
             f32 width = rect_width(rect);
             Face *face = file_get_face(models, file);
             
-            f32 top = 0.f;
-            f32 bot = 0.f;
             for (i64 line_number_it = layout->visible_line_number_range.first;;
                  line_number_it += 1){
                 Buffer_Layout_Item_List line = file_get_line_layout(models, file, width, face, line_number_it);
-                bot += line.height;
+                result.max += line.height;
                 if (line_number_it == line_number){
                     break;
                 }
-                top = bot;
+                result.min = result.max;
             }
             
-            top -= layout->point.pixel_shift.y;
-            bot -= layout->point.pixel_shift.y;
-            
-            result = Rf32(rect.x0, rect.y0 + top, rect.x1, rect.y0 + bot);
-            result = rect_intersect(rect, result);
-            
+            result -= layout->point.pixel_shift.y;
+            result = range_intersect(result, rect_range_y(rect));
             Vec2_f32 coordinate_center = models_get_coordinate_center(models);
-            result.p0 -= coordinate_center;
-            result.p1 -= coordinate_center;
+            result -= coordinate_center.y;
         }
     }
+    else if (line_number < layout->visible_line_number_range.min){
+        result = If32(rect.y0, rect.y0);
+    }
+    else if (line_number > layout->visible_line_number_range.max){
+        result = If32(rect.y1, rect.y1);
+    }
     return(result);
 }
 
diff --git a/4ed_layout.cpp b/4ed_layout.cpp
index 05d966b4..212a705d 100644
--- a/4ed_layout.cpp
+++ b/4ed_layout.cpp
@@ -51,7 +51,7 @@ layout__free_panel(Layout *layout, Panel *panel){
 }
 
 internal void
-layout__set_panel_rectangle(Layout *layout, Panel *panel, i32_Rect rect){
+layout__set_panel_rectangle(Layout *layout, Panel *panel, Rect_i32 rect){
     panel->rect_full = rect;
     panel->rect_inner = rect_inner(rect, layout->margin);
 }
@@ -86,8 +86,8 @@ layout_propogate_sizes_down_from_node(Layout *layout, Panel *panel){
         Panel *tl_panel = panel->tl_panel;
         Panel *br_panel = panel->br_panel;
         
-        i32_Rect r1 = panel->rect_full;
-        i32_Rect r2 = panel->rect_full;
+        Rect_i32 r1 = panel->rect_full;
+        Rect_i32 r2 = panel->rect_full;
         
         if (panel->vertical_split){
             i32 x_pos = layout__evaluate_split(panel->split, r1.x0, r1.x1);
@@ -299,7 +299,7 @@ internal void
 layout_set_margin(Layout *layout, i32 margin){
     if (layout->margin != margin){
         layout->margin = margin;
-        layout__set_panel_rectangle(layout, layout->root, i32R(0, 0, layout->full_dim.x, layout->full_dim.y));
+        layout__set_panel_rectangle(layout, layout->root, Ri32(0, 0, layout->full_dim.x, layout->full_dim.y));
         layout_propogate_sizes_down_from_node(layout, layout->root);
         layout->panel_state_dirty = true;
     }
@@ -309,7 +309,7 @@ internal void
 layout_set_root_size(Layout *layout, Vec2_i32 dim){
     if (layout->full_dim != dim){
         layout->full_dim = dim;
-        layout__set_panel_rectangle(layout, layout->root, i32R(0, 0, dim.x, dim.y));
+        layout__set_panel_rectangle(layout, layout->root, Ri32(0, 0, dim.x, dim.y));
         layout_propogate_sizes_down_from_node(layout, layout->root);
         layout->panel_state_dirty = true;
     }
@@ -423,7 +423,7 @@ layout__reverse_evaluate_panel_split(Panel *panel, i32 position){
 internal void
 layout__set_split_absolute_position_inner(Panel *panel){
     if (panel->kind == PanelKind_Intermediate){
-        i32_Rect r = panel->rect_full;
+        Rect_i32 r = panel->rect_full;
         i32 position = 0;
         if (panel->vertical_split){
             position = layout__evaluate_split(panel->split, r.x0, r.x1);
diff --git a/4ed_render_target.cpp b/4ed_render_target.cpp
index 307d303b..587d8d4e 100644
--- a/4ed_render_target.cpp
+++ b/4ed_render_target.cpp
@@ -118,9 +118,9 @@ draw_push_clip(Render_Target *target, Rect_i32 clip_box){
 internal Rect_i32
 draw_pop_clip(Render_Target *target){
     Assert(target->clip_top > 0);
-    i32_Rect result = target->clip_boxes[target->clip_top];
+    Rect_i32 result = target->clip_boxes[target->clip_top];
     --target->clip_top;
-    i32_Rect clip_box = target->clip_boxes[target->clip_top];
+    Rect_i32 clip_box = target->clip_boxes[target->clip_top];
     draw__set_clip_box(target, clip_box);
     return(result);
 }
@@ -145,14 +145,8 @@ begin_frame(Render_Target *target, void *font_set){
 internal void
 begin_render_section(Render_Target *target, i32 frame_index, f32 literal_dt, f32 animation_dt){
     target->clip_top = -1;
-    
-    i32_Rect clip;
-    clip.x0 = 0;
-    clip.y0 = 0;
-    clip.x1 = target->width;
-    clip.y1 = target->height;
+    Rect_i32 clip = Ri32(0, 0, target->width, target->height);
     draw_push_clip(target, clip);
-    
     target->frame_index = frame_index;
     target->literal_dt = literal_dt;
     target->animation_dt = animation_dt;
@@ -196,7 +190,7 @@ draw_font_glyph(Render_Target *target, Face *face, u32 codepoint, f32 x, f32 y,
     
     Render_Vertex vertices[6] = {};
     if (!HasFlag(flags, GlyphFlag_Rotate90)){
-        f32_Rect xy = Rf32(x + bounds.xy_off.x0, y + bounds.xy_off.y0,
+        Rect_f32 xy = Rf32(x + bounds.xy_off.x0, y + bounds.xy_off.y0,
                            x + bounds.xy_off.x1, y + bounds.xy_off.y1);
         
         vertices[0].xy = V2(xy.x0, xy.y1); vertices[0].uvw = V3(uv.x0, uv.y1, bounds.w);
@@ -205,7 +199,7 @@ draw_font_glyph(Render_Target *target, Face *face, u32 codepoint, f32 x, f32 y,
         vertices[5].xy = V2(xy.x1, xy.y0); vertices[5].uvw = V3(uv.x1, uv.y0, bounds.w);
     }
     else{
-        f32_Rect xy = Rf32(x - bounds.xy_off.y1, y + bounds.xy_off.x0,
+        Rect_f32 xy = Rf32(x - bounds.xy_off.y1, y + bounds.xy_off.x0,
                            x - bounds.xy_off.y0, y + bounds.xy_off.x1);
         
         vertices[0].xy = V2(xy.x0, xy.y1); vertices[0].uvw = V3(uv.x1, uv.y1, bounds.w);
@@ -228,7 +222,7 @@ draw_font_glyph(Render_Target *target, Face *face, u32 codepoint, f32 x, f32 y,
 ////////////////////////////////
 
 internal void
-draw_rectangle_outline(Render_Target *target, f32_Rect rect, u32 color){
+draw_rectangle_outline(Render_Target *target, Rect_f32 rect, u32 color){
     draw_rectangle(target, Rf32(rect.x0, rect.y0, rect.x1, rect.y0 + 1), color);
     draw_rectangle(target, Rf32(rect.x1 - 1, rect.y0, rect.x1, rect.y1), color);
     draw_rectangle(target, Rf32(rect.x0, rect.y1 - 1, rect.x1, rect.y1), color);
@@ -238,40 +232,40 @@ draw_rectangle_outline(Render_Target *target, f32_Rect rect, u32 color){
 ////////////////////////////////
 
 internal void
-draw_rectangle(Render_Target *target, i32_Rect rect, u32 color){
-    draw_rectangle(target, f32R(rect), color);
+draw_rectangle(Render_Target *target, Rect_i32 rect, u32 color){
+    draw_rectangle(target, Rf32(rect), color);
 }
 
 internal void
-draw_rectangle_outline(Render_Target *target, i32_Rect rect, u32 color){
-    draw_rectangle_outline(target, f32R(rect), color);
+draw_rectangle_outline(Render_Target *target, Rect_i32 rect, u32 color){
+    draw_rectangle_outline(target, Rf32(rect), color);
 }
 
 internal void
-draw_margin(Render_Target *target, f32_Rect outer, f32_Rect inner, u32 color){
-    draw_rectangle(target, f32R(outer.x0, outer.y0, outer.x1, inner.y0), color);
-    draw_rectangle(target, f32R(outer.x0, inner.y1, outer.x1, outer.y1), color);
-    draw_rectangle(target, f32R(outer.x0, inner.y0, inner.x0, inner.y1), color);
-    draw_rectangle(target, f32R(inner.x1, inner.y0, outer.x1, inner.y1), color);
+draw_margin(Render_Target *target, Rect_f32 outer, Rect_f32 inner, u32 color){
+    draw_rectangle(target, Rf32(outer.x0, outer.y0, outer.x1, inner.y0), color);
+    draw_rectangle(target, Rf32(outer.x0, inner.y1, outer.x1, outer.y1), color);
+    draw_rectangle(target, Rf32(outer.x0, inner.y0, inner.x0, inner.y1), color);
+    draw_rectangle(target, Rf32(inner.x1, inner.y0, outer.x1, inner.y1), color);
 }
 
 internal void
-draw_margin(Render_Target *target, f32_Rect outer, f32 width, u32 color){
-    f32_Rect inner = rect_inner(outer, width);
+draw_margin(Render_Target *target, Rect_f32 outer, f32 width, u32 color){
+    Rect_f32 inner = rect_inner(outer, width);
     draw_margin(target, outer, inner, color);
 }
 
 internal void
-draw_margin(Render_Target *target, i32_Rect outer, i32_Rect inner, u32 color){
-    draw_rectangle(target, i32R(outer.x0, outer.y0, outer.x1, inner.y0), color);
-    draw_rectangle(target, i32R(outer.x0, inner.y1, outer.x1, outer.y1), color);
-    draw_rectangle(target, i32R(outer.x0, inner.y0, inner.x0, inner.y1), color);
-    draw_rectangle(target, i32R(inner.x1, inner.y0, outer.x1, inner.y1), color);
+draw_margin(Render_Target *target, Rect_i32 outer, Rect_i32 inner, u32 color){
+    draw_rectangle(target, Ri32(outer.x0, outer.y0, outer.x1, inner.y0), color);
+    draw_rectangle(target, Ri32(outer.x0, inner.y1, outer.x1, outer.y1), color);
+    draw_rectangle(target, Ri32(outer.x0, inner.y0, inner.x0, inner.y1), color);
+    draw_rectangle(target, Ri32(inner.x1, inner.y0, outer.x1, inner.y1), color);
 }
 
 internal void
-draw_margin(Render_Target *target, i32_Rect outer, i32 width, u32 color){
-    i32_Rect inner = rect_inner(outer, width);
+draw_margin(Render_Target *target, Rect_i32 outer, i32 width, u32 color){
+    Rect_i32 inner = rect_inner(outer, width);
     draw_margin(target, outer, inner, color);
 }
 
diff --git a/4ed_render_target.h b/4ed_render_target.h
index 91b1a0a4..7180b0ff 100644
--- a/4ed_render_target.h
+++ b/4ed_render_target.h
@@ -41,11 +41,11 @@ struct Render_Group{
     Render_Vertex_List vertex_list;
     // parameters
     Face_ID face_id;
-    i32_Rect clip_box;
+    Rect_i32 clip_box;
 };
 
 struct Render_Target{
-    i32_Rect clip_boxes[5];
+    Rect_i32 clip_boxes[5];
     i32 clip_top;
     b8 clip_all;
     i32 width;
diff --git a/custom/4coder_base_types.cpp b/custom/4coder_base_types.cpp
index 69e3b2f0..0260ebf1 100644
--- a/custom/4coder_base_types.cpp
+++ b/custom/4coder_base_types.cpp
@@ -1758,11 +1758,81 @@ operator==(Interval_f32 a, Interval_f32 b){
     return(a.min == b.min && a.max == b.max);
 }
 
-#define make_range     Ii32
-#define make_range_i32 Ii32
-#define make_range_i64 Ii64
-#define make_range_u64 Iu64
-#define make_range_f32 If32
+function Interval_i32
+operator+(Interval_i32 r, i32 s){
+    return(Ii32(r.min + s, r.max + s));
+}
+function Interval_i64
+operator+(Interval_i64 r, i64 s){
+    return(Ii64(r.min + s, r.max + s));
+}
+function Interval_u64
+operator+(Interval_u64 r, u64 s){
+    return(Iu64(r.min + s, r.max + s));
+}
+function Interval_f32
+operator+(Interval_f32 r, f32 s){
+    return(If32(r.min + s, r.max + s));
+}
+
+function Interval_i32
+operator-(Interval_i32 r, i32 s){
+    return(Ii32(r.min - s, r.max - s));
+}
+function Interval_i64
+operator-(Interval_i64 r, i64 s){
+    return(Ii64(r.min - s, r.max - s));
+}
+function Interval_u64
+operator-(Interval_u64 r, u64 s){
+    return(Iu64(r.min - s, r.max - s));
+}
+function Interval_f32
+operator-(Interval_f32 r, f32 s){
+    return(If32(r.min - s, r.max - s));
+}
+
+function Interval_i32&
+operator+=(Interval_i32 &r, i32 s){
+    r = r + s;
+    return(r);
+}
+function Interval_i64&
+operator+=(Interval_i64 &r, i64 s){
+    r = r + s;
+    return(r);
+}
+function Interval_u64&
+operator+=(Interval_u64 &r, u64 s){
+    r = r + s;
+    return(r);
+}
+function Interval_f32&
+operator+=(Interval_f32 &r, f32 s){
+    r = r + s;
+    return(r);
+}
+
+function Interval_i32&
+operator-=(Interval_i32 &r, i32 s){
+    r = r - s;
+    return(r);
+}
+function Interval_i64&
+operator-=(Interval_i64 &r, i64 s){
+    r = r - s;
+    return(r);
+}
+function Interval_u64&
+operator-=(Interval_u64 &r, u64 s){
+    r = r - s;
+    return(r);
+}
+function Interval_f32&
+operator-=(Interval_f32 &r, f32 s){
+    r = r - s;
+    return(r);
+}
 
 internal Interval_i32
 range_margin(Interval_i32 range, i32 margin){
@@ -1806,6 +1876,56 @@ range_overlap(Interval_f32 a, Interval_f32 b){
     return(a.min < b.max && b.min < a.max);
 }
 
+internal Interval_i32
+range_intersect(Interval_i32 a, Interval_i32 b){
+    Interval_i32 result = {};
+    if (range_overlap(a, b)){
+        result = Ii32(max(a.min, b.min), min(a.max, b.max));
+    }
+    return(result);
+}
+internal Interval_i64
+range_intersect(Interval_i64 a, Interval_i64 b){
+    Interval_i64 result = {};
+    if (range_overlap(a, b)){
+        result = Ii64(max(a.min, b.min), min(a.max, b.max));
+    }
+    return(result);
+}
+internal Interval_u64
+range_intersect(Interval_u64 a, Interval_u64 b){
+    Interval_u64 result = {};
+    if (range_overlap(a, b)){
+        result = Iu64(max(a.min, b.min), min(a.max, b.max));
+    }
+    return(result);
+}
+internal Interval_f32
+range_intersect(Interval_f32 a, Interval_f32 b){
+    Interval_f32 result = {};
+    if (range_overlap(a, b)){
+        result = If32(max(a.min, b.min), min(a.max, b.max));
+    }
+    return(result);
+}
+
+internal Interval_i32
+range_union(Interval_i32 a, Interval_i32 b){
+    return(Ii32(min(a.min, b.min), max(a.max, b.max)));
+}
+internal Interval_i64
+range_union(Interval_i64 a, Interval_i64 b){
+    return(Ii64(min(a.min, b.min), max(a.max, b.max)));
+}
+internal Interval_u64
+range_union(Interval_u64 a, Interval_u64 b){
+    return(Iu64(min(a.min, b.min), max(a.max, b.max)));
+}
+internal Interval_f32
+range_union(Interval_f32 a, Interval_f32 b){
+    return(If32(min(a.min, b.min), max(a.max, b.max)));
+}
+
 internal b32
 range_contains_inclusive(Interval_i32 a, i32 p){
     return(a.min <= p && p <= a.max);
@@ -2093,9 +2213,6 @@ Rf32(Rect_i32 o){
     return(rect);
 }
 
-#define i32R Ri32
-#define f32R Rf32
-
 internal Rect_i32
 Ri32_xy_wh(i32 x0, i32 y0, i32 w, i32 h){
     Rect_i32 rect = {x0, y0, x0 + w, y0 + h};
@@ -2118,12 +2235,21 @@ Rf32_xy_wh(Vec2_f32 p0, Vec2_f32 d){
     return(rect);
 }
 
-#define i32R_xy_wh
-#define f32R_xy_wh
+function Rect_i32
+Ri32(Interval_i32 x, Interval_i32 y){
+    return(Ri32(x.min, y.min, x.max, y.max));
+}
+function Rect_f32
+Rf32(Interval_f32 x, Interval_f32 y){
+    return(Rf32(x.min, y.min, x.max, y.max));
+}
 
 global_const Rect_f32 Rf32_infinity          = {-max_f32, -max_f32,  max_f32,  max_f32};
 global_const Rect_f32 Rf32_negative_infinity = { max_f32,  max_f32, -max_f32, -max_f32};
 
+global_const Rect_i32 Ri32_infinity          = {-max_i32, -max_i32,  max_i32,  max_i32};
+global_const Rect_i32 Ri32_negative_infinity = { max_i32,  max_i32, -max_i32, -max_i32};
+
 internal b32
 rect_equals(Rect_i32 a, Rect_i32 b){
     return(a.x0 == b.x0 && a.y0 == b.y0 && a.x1 == b.x1 && a.y1 == b.y1);
diff --git a/custom/4coder_base_types.h b/custom/4coder_base_types.h
index 00ef1b80..af7bb16a 100644
--- a/custom/4coder_base_types.h
+++ b/custom/4coder_base_types.h
@@ -756,15 +756,10 @@ typedef Vec2_f32 Vec2;
 typedef Vec3_f32 Vec3;
 typedef Vec4_f32 Vec4;
 
-typedef Rect_f32 f32_Rect;
-typedef Rect_i32 i32_Rect;
-
-struct f32_Rect_Pair{
-    f32_Rect E[2];
+struct Rect_f32_Pair{
+    Rect_f32 e[2];
 };
 
-typedef f32_Rect_Pair Rect_f32_Pair;
-
 ////////////////////////////////
 
 struct i8_Array{
diff --git a/custom/4coder_default_hooks.cpp b/custom/4coder_default_hooks.cpp
index d191f78c..8ee27192 100644
--- a/custom/4coder_default_hooks.cpp
+++ b/custom/4coder_default_hooks.cpp
@@ -101,7 +101,6 @@ internal void
 draw_enclosures(Application_Links *app, Text_Layout_ID text_layout_id, Buffer_ID buffer,
                 i64 pos, u32 flags, Range_Highlight_Kind kind,
                 int_color *back_colors, int_color *fore_colors, i32 color_count){
-#if 0
     Scratch_Block scratch(app);
     Range_i64_Array ranges = get_enclosure_ranges(app, scratch, buffer, pos, flags);
     
@@ -148,14 +147,13 @@ draw_enclosures(Application_Links *app, Text_Layout_ID text_layout_id, Buffer_ID
                 draw_character_block(app, text_layout_id, range.max - 1, back_colors[color_index]);
             }
             if (fore_colors != 0){
-                paint_text_color(app, text_layout_id, range.min, fore_colors[color_index]);
-                paint_text_color(app, text_layout_id, range.max - 1, fore_colors[color_index]);
+                paint_text_color_pos(app, text_layout_id, range.min, fore_colors[color_index]);
+                paint_text_color_pos(app, text_layout_id, range.max - 1, fore_colors[color_index]);
             }
         }
         color_index += 1;
         color_index = (color_index%color_count);
     }
-#endif
 }
 
 static argb_color default_colors[Stag_COUNT] = {};
@@ -674,8 +672,8 @@ default_buffer_render_caller(Application_Links *app, Frame_Info frame_info, View
         
         Buffer_Cursor cursor = view_compute_cursor(app, view_id, seek_pos(visible_range.first));
         for (;cursor.pos <= visible_range.one_past_last;){
-            Rect_f32 line_rect = text_layout_line_on_screen(app, text_layout_id, cursor.line);
-            Vec2_f32 p = V2f32(left_margin.x1, line_rect.y0);
+            Range_f32 line_y = text_layout_line_on_screen(app, text_layout_id, cursor.line);
+            Vec2_f32 p = V2f32(left_margin.x1, line_y.min);
             Temp_Memory temp = begin_temp(scratch);
             Fancy_String *line_string = push_fancy_stringf(scratch, line_color, "%*lld", line_count_digit_count, cursor.line);
             draw_fancy_string(app, face_id, line_string, p, Stag_Margin_Active, 0);
@@ -701,7 +699,7 @@ default_ui_render_caller(Application_Links *app, View_ID view_id, Rect_f32 rect_
         for (UI_Item *item = ui_data->list.first;
              item != 0;
              item = item->next){
-            Rect_f32 item_rect = f32R(item->rect_outer);
+            Rect_f32 item_rect = Rf32(item->rect_outer);
             
             switch (item->coordinates){
                 case UICoordinates_ViewSpace:
diff --git a/custom/4coder_helper.cpp b/custom/4coder_helper.cpp
index 6d1ad8cf..f0a84a49 100644
--- a/custom/4coder_helper.cpp
+++ b/custom/4coder_helper.cpp
@@ -2325,7 +2325,7 @@ draw_string(Application_Links *app, Face_ID font_id, String_Const_u8 string, Vec
 }
 
 internal void
-draw_margin(Application_Links *app, f32_Rect outer, f32_Rect inner, int_color color){
+draw_margin(Application_Links *app, Rect_f32 outer, Rect_f32 inner, int_color color){
     draw_rectangle(app, Rf32(outer.x0, outer.y0, outer.x1, inner.y0), color);
     draw_rectangle(app, Rf32(outer.x0, inner.y1, outer.x1, outer.y1), color);
     draw_rectangle(app, Rf32(outer.x0, inner.y0, inner.x0, inner.y1), color);
@@ -2367,12 +2367,13 @@ draw_character_i_bar(Application_Links *app, Text_Layout_ID layout, i64 pos, int
 
 internal void
 draw_line_highlight(Application_Links *app, Text_Layout_ID layout, Range_i64 line_range, int_color color){
-    Rect_f32 rect = text_layout_line_on_screen(app, layout, line_range.min);
-    for (i64 i = line_range.min + 1; i <= line_range.max; i += 1){
-        Rect_f32 r = text_layout_line_on_screen(app, layout, i);
-        rect = rect_union(rect, r);
+    Range_f32 y1 = text_layout_line_on_screen(app, layout, line_range.min);
+    Range_f32 y2 = text_layout_line_on_screen(app, layout, line_range.max);
+    Range_f32 y = range_union(y1, y2);
+    if (range_size(y) > 0.f){
+        Rect_f32 region = text_layout_region(app, layout);
+        draw_rectangle(app, Rf32(rect_range_x(region), y), color);
     }
-    draw_rectangle(app, rect, color);
 }
 
 internal void
@@ -2387,20 +2388,20 @@ paint_text_color_pos(Application_Links *app, Text_Layout_ID layout, i64 pos, int
 
 ////////////////////////////////
 
-internal f32_Rect_Pair
-split_rect(f32_Rect rect, View_Split_Kind kind, Coordinate coord, Side from_side, f32 t){
-    f32_Rect_Pair result = {};
+internal Rect_f32_Pair
+split_rect(Rect_f32 rect, View_Split_Kind kind, Coordinate coord, Side from_side, f32 t){
+    Rect_f32_Pair result = {};
     if (kind == ViewSplitKind_FixedPixels){
-        result.E[0] = rect;
-        result.E[1] = rect;
+        result.e[0] = rect;
+        result.e[1] = rect;
         if (coord == Coordinate_X){
-            result.E[0].x1 = (from_side == Side_Max) ? (rect.x1 - t) : (rect.x0 + t);
-            result.E[1].x0 = result.E[0].x1;
+            result.e[0].x1 = (from_side == Side_Max) ? (rect.x1 - t) : (rect.x0 + t);
+            result.e[1].x0 = result.e[0].x1;
         }
         else{
             Assert(coord == Coordinate_Y);
-            result.E[0].y1 = (from_side == Side_Max) ? (rect.y1 - t) : (rect.y0 + t);
-            result.E[1].y0 = result.E[0].y1;
+            result.e[0].y1 = (from_side == Side_Max) ? (rect.y1 - t) : (rect.y0 + t);
+            result.e[1].y0 = result.e[0].y1;
         }
     }
     else{
diff --git a/custom/4coder_search.cpp b/custom/4coder_search.cpp
index 07d5f1ca..99debce3 100644
--- a/custom/4coder_search.cpp
+++ b/custom/4coder_search.cpp
@@ -235,7 +235,7 @@ get_word_complete_needle_range(Application_Links *app, Buffer_ID buffer, i64 pos
     needle_range.min = scan(app, boundary_alpha_numeric_underscore_utf8, buffer, Scan_Backward, pos);
     i64 e = scan(app, boundary_alpha_numeric_underscore_utf8, buffer, Scan_Forward, needle_range.min);
     if (needle_range.max > e){
-        needle_range = make_range_i64(pos);
+        needle_range = Ii64(pos);
     }
     return(needle_range);
 }
@@ -306,10 +306,10 @@ get_word_complete_match_list__unreduced(Application_Links *app, Arena *arena, Bu
     
     i64 size = buffer_get_size(app, buffer);
     String_Match_List up = buffer_find_all_matches(app, arena, buffer, 0,
-                                                   make_range_i64(0, needle_range.min),
+                                                   Ii64(0, needle_range.min),
                                                    needle, pred, Scan_Backward);
     String_Match_List down = buffer_find_all_matches(app, arena, buffer, 0,
-                                                     make_range_i64(needle_range.max, size),
+                                                     Ii64(needle_range.max, size),
                                                      needle, pred, Scan_Forward);
     
     string_match_list_filter_flags(&up, word_complete_must, word_complete_must_not);
diff --git a/custom/4coder_string_match.cpp b/custom/4coder_string_match.cpp
index 8d0483f0..7e4f981e 100644
--- a/custom/4coder_string_match.cpp
+++ b/custom/4coder_string_match.cpp
@@ -25,7 +25,7 @@ internal void
 string_match_list_push(Arena *arena, String_Match_List *list,
                        Buffer_ID buffer, i32 string_id, String_Match_Flag flags, i64 start, i64 length){
     string_match_list_push(arena, list, buffer, string_id, flags,
-                           make_range_i64(start, start + length));
+                           Ii64(start, start + length));
 }
 
 internal String_Match_List
@@ -138,7 +138,7 @@ string_match_list_merge_nearest(String_Match_List *a, String_Match_List *b, Rang
 
 internal String_Match_List
 string_match_list_merge_front_to_back(String_Match_List *a, String_Match_List *b){
-    return(string_match_list_merge_nearest(a, b, make_range_i64(0)));
+    return(string_match_list_merge_nearest(a, b, Ii64(0)));
 }
 
 // BOTTOM
diff --git a/custom/4coder_ui_helper.cpp b/custom/4coder_ui_helper.cpp
index f6841db4..8a21b6f9 100644
--- a/custom/4coder_ui_helper.cpp
+++ b/custom/4coder_ui_helper.cpp
@@ -83,34 +83,10 @@ ui_list_add_item(Arena *arena, UI_List *list, UI_Item item){
     return(node);
 }
 
-static i32_Rect
-ui__rect_union(i32_Rect a, i32_Rect b){
-    if (b.x1 > b.x0 && b.y1 > b.y0){
-        if (a.x0 > b.x0){
-            a.x0 = b.x0;
-        }
-        if (a.x1 < b.x1){
-            a.x1 = b.x1;
-        }
-        if (a.y0 > b.y0){
-            a.y0 = b.y0;
-        }
-        if (a.y1 < b.y1){
-            a.y1 = b.y1;
-        }
-    }
-    return(a);
-}
-
 static void
 ui_data_compute_bounding_boxes(UI_Data *ui_data){
-    i32_Rect neg_inf_rect = {};
-    neg_inf_rect.x0 = INT32_MAX;
-    neg_inf_rect.y0 = INT32_MAX;
-    neg_inf_rect.x1 = INT32_MIN;
-    neg_inf_rect.y1 = INT32_MIN;
     for (u32 i = 0; i < UICoordinates_COUNT; ++i){
-        ui_data->bounding_box[i] = neg_inf_rect;
+        ui_data->bounding_box[i] = Ri32_negative_infinity;
     }
     for (UI_Item *item = ui_data->list.first;
          item != 0;
@@ -119,7 +95,7 @@ ui_data_compute_bounding_boxes(UI_Data *ui_data){
             item->coordinates = UICoordinates_ViewSpace;
         }
         Rect_i32 *box = &ui_data->bounding_box[item->coordinates];
-        *box = ui__rect_union(*box, item->rect_outer);
+        *box = rect_union(*box, item->rect_outer);
     }
 }
 
@@ -448,7 +424,7 @@ lister_update_ui(Application_Links *app, View_ID view, Lister_State *state){
         
         {
             // TODO(allen): switch to float
-            i32_Rect item_rect = {};
+            Rect_i32 item_rect = {};
             item_rect.x0 = (i32)x0;
             item_rect.y0 = 0;
             item_rect.x1 = (i32)x1;
diff --git a/custom/generated/custom_api.cpp b/custom/generated/custom_api.cpp
index 65801d7b..2af22333 100644
--- a/custom/generated/custom_api.cpp
+++ b/custom/generated/custom_api.cpp
@@ -171,6 +171,7 @@ vtable->draw_clip_pop = draw_clip_pop;
 vtable->draw_coordinate_center_push = draw_coordinate_center_push;
 vtable->draw_coordinate_center_pop = draw_coordinate_center_pop;
 vtable->text_layout_create = text_layout_create;
+vtable->text_layout_region = text_layout_region;
 vtable->text_layout_get_buffer = text_layout_get_buffer;
 vtable->text_layout_get_visible_range = text_layout_get_visible_range;
 vtable->text_layout_line_on_screen = text_layout_line_on_screen;
@@ -356,6 +357,7 @@ draw_clip_pop = vtable->draw_clip_pop;
 draw_coordinate_center_push = vtable->draw_coordinate_center_push;
 draw_coordinate_center_pop = vtable->draw_coordinate_center_pop;
 text_layout_create = vtable->text_layout_create;
+text_layout_region = vtable->text_layout_region;
 text_layout_get_buffer = vtable->text_layout_get_buffer;
 text_layout_get_visible_range = vtable->text_layout_get_visible_range;
 text_layout_line_on_screen = vtable->text_layout_line_on_screen;
diff --git a/custom/generated/custom_api.h b/custom/generated/custom_api.h
index 4cd68ebc..37b7fc60 100644
--- a/custom/generated/custom_api.h
+++ b/custom/generated/custom_api.h
@@ -165,13 +165,14 @@
 #define custom_draw_rectangle_sig() void custom_draw_rectangle(Application_Links* app, Rect_f32 rect, int_color color)
 #define custom_draw_rectangle_outline_sig() void custom_draw_rectangle_outline(Application_Links* app, Rect_f32 rect, int_color color)
 #define custom_draw_clip_push_sig() void custom_draw_clip_push(Application_Links* app, Rect_f32 clip_box)
-#define custom_draw_clip_pop_sig() f32_Rect custom_draw_clip_pop(Application_Links* app)
+#define custom_draw_clip_pop_sig() Rect_f32 custom_draw_clip_pop(Application_Links* app)
 #define custom_draw_coordinate_center_push_sig() void custom_draw_coordinate_center_push(Application_Links* app, Vec2 point)
 #define custom_draw_coordinate_center_pop_sig() Vec2 custom_draw_coordinate_center_pop(Application_Links* app)
 #define custom_text_layout_create_sig() Text_Layout_ID custom_text_layout_create(Application_Links* app, Buffer_ID buffer_id, Rect_f32 rect, Buffer_Point buffer_point)
-#define custom_text_layout_get_buffer_sig() b32 custom_text_layout_get_buffer(Application_Links* app, Text_Layout_ID text_layout_id, Buffer_ID* buffer_id_out)
+#define custom_text_layout_region_sig() Rect_f32 custom_text_layout_region(Application_Links* app, Text_Layout_ID text_layout_id)
+#define custom_text_layout_get_buffer_sig() Buffer_ID custom_text_layout_get_buffer(Application_Links* app, Text_Layout_ID text_layout_id)
 #define custom_text_layout_get_visible_range_sig() Interval_i64 custom_text_layout_get_visible_range(Application_Links* app, Text_Layout_ID text_layout_id)
-#define custom_text_layout_line_on_screen_sig() Rect_f32 custom_text_layout_line_on_screen(Application_Links* app, Text_Layout_ID layout_id, i64 line_number)
+#define custom_text_layout_line_on_screen_sig() Range_f32 custom_text_layout_line_on_screen(Application_Links* app, Text_Layout_ID layout_id, i64 line_number)
 #define custom_text_layout_character_on_screen_sig() Rect_f32 custom_text_layout_character_on_screen(Application_Links* app, Text_Layout_ID layout_id, i64 pos)
 #define custom_paint_text_color_sig() void custom_paint_text_color(Application_Links* app, Text_Layout_ID layout_id, Interval_i64 range, int_color color)
 #define custom_text_layout_free_sig() b32 custom_text_layout_free(Application_Links* app, Text_Layout_ID text_layout_id)
@@ -346,13 +347,14 @@ typedef f32 custom_get_string_advance_type(Application_Links* app, Face_ID font_
 typedef void custom_draw_rectangle_type(Application_Links* app, Rect_f32 rect, int_color color);
 typedef void custom_draw_rectangle_outline_type(Application_Links* app, Rect_f32 rect, int_color color);
 typedef void custom_draw_clip_push_type(Application_Links* app, Rect_f32 clip_box);
-typedef f32_Rect custom_draw_clip_pop_type(Application_Links* app);
+typedef Rect_f32 custom_draw_clip_pop_type(Application_Links* app);
 typedef void custom_draw_coordinate_center_push_type(Application_Links* app, Vec2 point);
 typedef Vec2 custom_draw_coordinate_center_pop_type(Application_Links* app);
 typedef Text_Layout_ID custom_text_layout_create_type(Application_Links* app, Buffer_ID buffer_id, Rect_f32 rect, Buffer_Point buffer_point);
-typedef b32 custom_text_layout_get_buffer_type(Application_Links* app, Text_Layout_ID text_layout_id, Buffer_ID* buffer_id_out);
+typedef Rect_f32 custom_text_layout_region_type(Application_Links* app, Text_Layout_ID text_layout_id);
+typedef Buffer_ID custom_text_layout_get_buffer_type(Application_Links* app, Text_Layout_ID text_layout_id);
 typedef Interval_i64 custom_text_layout_get_visible_range_type(Application_Links* app, Text_Layout_ID text_layout_id);
-typedef Rect_f32 custom_text_layout_line_on_screen_type(Application_Links* app, Text_Layout_ID layout_id, i64 line_number);
+typedef Range_f32 custom_text_layout_line_on_screen_type(Application_Links* app, Text_Layout_ID layout_id, i64 line_number);
 typedef Rect_f32 custom_text_layout_character_on_screen_type(Application_Links* app, Text_Layout_ID layout_id, i64 pos);
 typedef void custom_paint_text_color_type(Application_Links* app, Text_Layout_ID layout_id, Interval_i64 range, int_color color);
 typedef b32 custom_text_layout_free_type(Application_Links* app, Text_Layout_ID text_layout_id);
@@ -532,6 +534,7 @@ custom_draw_clip_pop_type *draw_clip_pop;
 custom_draw_coordinate_center_push_type *draw_coordinate_center_push;
 custom_draw_coordinate_center_pop_type *draw_coordinate_center_pop;
 custom_text_layout_create_type *text_layout_create;
+custom_text_layout_region_type *text_layout_region;
 custom_text_layout_get_buffer_type *text_layout_get_buffer;
 custom_text_layout_get_visible_range_type *text_layout_get_visible_range;
 custom_text_layout_line_on_screen_type *text_layout_line_on_screen;
@@ -711,13 +714,14 @@ internal f32 get_string_advance(Application_Links* app, Face_ID font_id, String_
 internal void draw_rectangle(Application_Links* app, Rect_f32 rect, int_color color);
 internal void draw_rectangle_outline(Application_Links* app, Rect_f32 rect, int_color color);
 internal void draw_clip_push(Application_Links* app, Rect_f32 clip_box);
-internal f32_Rect draw_clip_pop(Application_Links* app);
+internal Rect_f32 draw_clip_pop(Application_Links* app);
 internal void draw_coordinate_center_push(Application_Links* app, Vec2 point);
 internal Vec2 draw_coordinate_center_pop(Application_Links* app);
 internal Text_Layout_ID text_layout_create(Application_Links* app, Buffer_ID buffer_id, Rect_f32 rect, Buffer_Point buffer_point);
-internal b32 text_layout_get_buffer(Application_Links* app, Text_Layout_ID text_layout_id, Buffer_ID* buffer_id_out);
+internal Rect_f32 text_layout_region(Application_Links* app, Text_Layout_ID text_layout_id);
+internal Buffer_ID text_layout_get_buffer(Application_Links* app, Text_Layout_ID text_layout_id);
 internal Interval_i64 text_layout_get_visible_range(Application_Links* app, Text_Layout_ID text_layout_id);
-internal Rect_f32 text_layout_line_on_screen(Application_Links* app, Text_Layout_ID layout_id, i64 line_number);
+internal Range_f32 text_layout_line_on_screen(Application_Links* app, Text_Layout_ID layout_id, i64 line_number);
 internal Rect_f32 text_layout_character_on_screen(Application_Links* app, Text_Layout_ID layout_id, i64 pos);
 internal void paint_text_color(Application_Links* app, Text_Layout_ID layout_id, Interval_i64 range, int_color color);
 internal b32 text_layout_free(Application_Links* app, Text_Layout_ID text_layout_id);
@@ -898,6 +902,7 @@ global custom_draw_clip_pop_type *draw_clip_pop = 0;
 global custom_draw_coordinate_center_push_type *draw_coordinate_center_push = 0;
 global custom_draw_coordinate_center_pop_type *draw_coordinate_center_pop = 0;
 global custom_text_layout_create_type *text_layout_create = 0;
+global custom_text_layout_region_type *text_layout_region = 0;
 global custom_text_layout_get_buffer_type *text_layout_get_buffer = 0;
 global custom_text_layout_get_visible_range_type *text_layout_get_visible_range = 0;
 global custom_text_layout_line_on_screen_type *text_layout_line_on_screen = 0;
diff --git a/custom/generated/custom_api_master_list.h b/custom/generated/custom_api_master_list.h
index f8936be3..8ac79eeb 100644
--- a/custom/generated/custom_api_master_list.h
+++ b/custom/generated/custom_api_master_list.h
@@ -165,13 +165,14 @@ api(custom) function f32 get_string_advance(Application_Links* app, Face_ID font
 api(custom) function void draw_rectangle(Application_Links* app, Rect_f32 rect, int_color color);
 api(custom) function void draw_rectangle_outline(Application_Links* app, Rect_f32 rect, int_color color);
 api(custom) function void draw_clip_push(Application_Links* app, Rect_f32 clip_box);
-api(custom) function f32_Rect draw_clip_pop(Application_Links* app);
+api(custom) function Rect_f32 draw_clip_pop(Application_Links* app);
 api(custom) function void draw_coordinate_center_push(Application_Links* app, Vec2 point);
 api(custom) function Vec2 draw_coordinate_center_pop(Application_Links* app);
 api(custom) function Text_Layout_ID text_layout_create(Application_Links* app, Buffer_ID buffer_id, Rect_f32 rect, Buffer_Point buffer_point);
-api(custom) function b32 text_layout_get_buffer(Application_Links* app, Text_Layout_ID text_layout_id, Buffer_ID* buffer_id_out);
+api(custom) function Rect_f32 text_layout_region(Application_Links* app, Text_Layout_ID text_layout_id);
+api(custom) function Buffer_ID text_layout_get_buffer(Application_Links* app, Text_Layout_ID text_layout_id);
 api(custom) function Interval_i64 text_layout_get_visible_range(Application_Links* app, Text_Layout_ID text_layout_id);
-api(custom) function Rect_f32 text_layout_line_on_screen(Application_Links* app, Text_Layout_ID layout_id, i64 line_number);
+api(custom) function Range_f32 text_layout_line_on_screen(Application_Links* app, Text_Layout_ID layout_id, i64 line_number);
 api(custom) function Rect_f32 text_layout_character_on_screen(Application_Links* app, Text_Layout_ID layout_id, i64 pos);
 api(custom) function void paint_text_color(Application_Links* app, Text_Layout_ID layout_id, Interval_i64 range, int_color color);
 api(custom) function b32 text_layout_free(Application_Links* app, Text_Layout_ID text_layout_id);
diff --git a/platform_win32/win32_4ed.cpp b/platform_win32/win32_4ed.cpp
index e2f7947c..d5ed3577 100644
--- a/platform_win32/win32_4ed.cpp
+++ b/platform_win32/win32_4ed.cpp
@@ -1858,26 +1858,10 @@ WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdS
         POINT mouse_point;
         if (GetCursorPos(&mouse_point) &&
             ScreenToClient(win32vars.window_handle, &mouse_point)){
-            
-            i32_Rect screen;
-            screen.x0 = 0;
-            screen.y0 = 0;
-            screen.x1 = target.width;
-            screen.y1 = target.height;
-            
-            i32 mx = mouse_point.x;
-            i32 my = mouse_point.y;
-            
-            b32 is_hit = false;
-            if (mx >= screen.x0 && mx < screen.x1 && my >= screen.y0 && my < screen.y1){
-                is_hit = true;
-            }
-            
-            if (!is_hit){
-                win32vars.input_chunk.trans.out_of_window = true;
-            }
-            
-            win32vars.input_chunk.pers.mouse = V2i32(mouse_point.x, mouse_point.y);
+            Rect_i32 screen = Ri32(0, 0, target.width, target.height);
+            Vec2_i32 mp = V2i32(mouse_point.x, mouse_point.y);
+            win32vars.input_chunk.trans.out_of_window = (!rect_contains_point(screen, mp));
+            win32vars.input_chunk.pers.mouse = mp;
         }
         else{
             win32vars.input_chunk.trans.out_of_window = true;