From ac37668c0765703a2d76edac0d1d8b8f55be4e56 Mon Sep 17 00:00:00 2001
From: Jeffrey Armstrong <jeff@approximatrix.com>
Date: Thu, 14 May 2020 08:31:44 -0400
Subject: Renderer class now has optional arguments for drawing text to
 indicate list items, headings, etc.  Dumb renderer now draws headings a bit
 nicer.

---
 dumb_render.f90 | 102 ++++++++++++++++++++++++++++++++++++++++++++++++++++----
 1 file changed, 95 insertions(+), 7 deletions(-)

(limited to 'dumb_render.f90')

diff --git a/dumb_render.f90 b/dumb_render.f90
index 93897ed..3834e5c 100644
--- a/dumb_render.f90
+++ b/dumb_render.f90
@@ -27,6 +27,8 @@ implicit none
     integer, parameter::width = 79
     integer, parameter::height = 24
 
+    character, parameter::bullet_character = '-'
+
     type, extends(renderer) :: dumb_renderer
 
         integer::link_index
@@ -46,14 +48,14 @@ implicit none
         
         procedure :: draw_porportional => dumb_text_draw
 
-        procedure :: preformatted_width => dumb_text_width
-        procedure :: preformatted_height => dumb_text_height
+        procedure :: preformatted_width => dumb_simple_width
+        procedure :: preformatted_height => dumb_simple_height
         procedure :: is_preformatted_visible => dumb_text_visible
         
-        procedure :: draw_preformatted => dumb_text_draw
+        procedure :: draw_preformatted => dumb_simple_draw
     
         procedure :: link_width => dumb_link_width
-        procedure :: link_height => dumb_text_height
+        procedure :: link_height => dumb_simple_height
         procedure :: is_link_visible => dumb_text_visible
         
         procedure :: draw_link => dumb_link_draw
@@ -122,28 +124,66 @@ contains
         
     end function store_link
 
-    function dumb_text_width(self, text)
+    function dumb_text_width(self, text, heading, list_item)
     implicit none
         
         class(dumb_renderer)::self
         character(*), intent(in)::text
+        integer, optional::heading
+        logical, optional::list_item
         integer::dumb_text_width
         
         dumb_text_width = len_trim(text)
         
+        if(present(list_item)) then
+            if(list_item) then
+                dumb_text_width = dumb_text_width + 3
+            end if
+        end if
+        
     end function dumb_text_width
         
-    function dumb_text_height(self, text)
+    function dumb_text_height(self, text, heading, list_item)
     implicit none
         
         class(dumb_renderer)::self
         character(*), intent(in)::text
+        integer, optional::heading
+        logical, optional::list_item
         integer::dumb_text_height
         
         dumb_text_height = 1
         
+        if(present(heading)) then
+            if(heading > 0) then
+                dumb_text_height = 2
+            end if
+        end if
+        
     end function dumb_text_height
     
+    function dumb_simple_width(self, text)
+    implicit none
+        
+        class(dumb_renderer)::self
+        character(*), intent(in)::text
+        integer::dumb_simple_width
+        
+        dumb_simple_width = len_trim(text)
+        
+    end function dumb_simple_width
+    
+    function dumb_simple_height(self, text)
+    implicit none
+        
+        class(dumb_renderer)::self
+        character(*), intent(in)::text
+        integer::dumb_simple_height
+        
+        dumb_simple_height = 1
+        
+    end function dumb_simple_height
+    
     function dumb_text_visible(self, text)
     implicit none
     
@@ -157,7 +197,7 @@ contains
     
     end function dumb_text_visible
     
-    subroutine dumb_text_draw(self, text)
+    subroutine dumb_simple_draw(self, text)
     implicit none
     
         class(dumb_renderer)::self
@@ -177,6 +217,54 @@ contains
             
             write(*, formatting) text(1:limit_x)
         end if
+    end subroutine dumb_simple_draw
+    
+    subroutine dumb_text_draw(self, text, heading, list_item)
+    implicit none
+    
+        class(dumb_renderer)::self
+        character(*), intent(in)::text
+        integer, optional::heading
+        logical, optional::list_item
+        integer::limit_x
+        character(5)::formatting
+        character(self%max_width)::heading_line
+        
+        ! Put a bullet for list items
+        if(present(list_item)) then
+            if(list_item) then
+                write(*, '(1X, A1, 1X)', advance='no') bullet_character
+            end if
+        end if
+        
+        limit_x = min(len_trim(text), self%max_width)
+        if(limit_x == 0) then
+            write(*,*) " "
+        else
+            if(limit_x < 10) then
+                write(formatting, '(A2, I1, A1)') '(A', limit_x, ')'
+            else
+                write(formatting, '(A2, I2, A1)') '(A', limit_x, ')'
+            end if
+            
+            write(*, formatting) text(1:limit_x)
+        end if
+        
+        ! For headings, plop a second line as an underline
+        if(present(heading)) then
+            if(heading > 0) then
+                if(limit_x > 0) then
+                    if(heading == 1) then
+                        heading_line = repeat("=", limit_x)
+                    else
+                        heading_line = repeat("-", limit_x)
+                    end if
+                    write(*, formatting) heading_line(1:limit_x)
+                else
+                    write(*,*) " "
+                end if
+            end if
+        end if
     
     end subroutine dumb_text_draw
     
-- 
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