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fox32os/applications/foxpaint/main.asm
jn ffdda5eaca Make use of data.strz 
The filesystem image is the same before and after this commit:

$ sha256sum fox32os-orig.img fox32os.img
abc77bd6310b8eb6bcde0a8a442ca8bab071307a6cf5155ea606578435f77d27  fox32os-orig.img
abc77bd6310b8eb6bcde0a8a442ca8bab071307a6cf5155ea606578435f77d27  fox32os.img


The conversion was performed with a few sed commands:

find -name '*.asm' | xargs sed -i -e 's/data.str \("[^"]*"\) data.8 0$/data.strz \1/g'
find -name '*.asm' | xargs sed -i -e 's/data.str \("[^"]*"\) data.8 0 /data.strz \1 /g'
find -name '*.asm' | xargs sed -i -e 's/data.str \("[^"]*"\) data.8 0x00 /data.strz \1 /g'
2023-02-02 03:03:07 +01:00

395 lines
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; simple paint application
mov r0, canvas_window_struct
mov r1, canvas_window_title
mov r2, 512
mov r3, 448
mov r4, 0
mov r5, 16
mov r6, menu_items_root
mov r7, 0
call new_window
mov r0, tools_window_struct
mov r1, tools_window_title
mov r2, 128
mov r3, 128
mov r4, 512
mov r5, 16
mov r6, menu_items_root
mov r7, color_button_black_widget
call new_window
mov r0, 0xFFFFFFFF
mov r1, tools_window_struct
call fill_window
mov r0, tools_window_struct
call get_window_overlay_number
mov r5, r0
mov r0, 16
mov r1, 32
mov r2, 96
mov r3, 96
mov r4, 0xFF888888
call draw_filled_rectangle_to_overlay
mov r0, color_section_text
mov r1, 32
mov r2, 48
mov r3, [color]
not r3
or r3, 0xFF000000
mov r4, [color]
call draw_str_to_overlay
mov r0, tools_window_struct
call draw_widgets_to_window
event_loop:
; canvas events
mov r0, canvas_window_struct
call get_next_window_event
; was the mouse clicked?
cmp r0, EVENT_TYPE_MOUSE_CLICK
ifz call canvas_mouse_click_event
; was the mouse released?
cmp r0, EVENT_TYPE_MOUSE_RELEASE
ifz mov.8 [is_drawing], 0
; did the user click the menu bar?
cmp r0, EVENT_TYPE_MENU_BAR_CLICK
ifz mov r0, menu_items_root
ifz call menu_bar_click_event
; is the user in a menu?
cmp r0, EVENT_TYPE_MENU_UPDATE
ifz call menu_update_event
; did the user click a menu item?
cmp r0, EVENT_TYPE_MENU_CLICK
ifz call menu_click_event
; should the menu be closed?
cmp r0, EVENT_TYPE_MENU_ACK
ifz call menu_ack_event
; tools events
mov r0, tools_window_struct
call get_next_window_event
; was the mouse clicked?
cmp r0, EVENT_TYPE_MOUSE_CLICK
ifz call tools_mouse_click_event
; was the mouse released?
cmp r0, EVENT_TYPE_MOUSE_RELEASE
ifz mov.8 [is_drawing], 0
; did the user click the menu bar?
cmp r0, EVENT_TYPE_MENU_BAR_CLICK
ifz mov r0, menu_items_root
ifz call menu_bar_click_event
; is the user in a menu?
cmp r0, EVENT_TYPE_MENU_UPDATE
ifz call menu_update_event
; did the user click a menu item?
cmp r0, EVENT_TYPE_MENU_CLICK
ifz call menu_click_event
; should the menu be closed?
cmp r0, EVENT_TYPE_MENU_ACK
ifz call menu_ack_event
; did the user click a button?
cmp r0, EVENT_TYPE_BUTTON_CLICK
ifz call tools_button_click_event
cmp.8 [is_drawing], 0
ifnz call draw_pixel
call yield_task
jmp event_loop
canvas_mouse_click_event:
push r0
; first, check if we are attempting to drag or close the window
cmp r2, 16
iflteq jmp drag_or_close_canvas_window
; if not, enable the drawing flag
mov.8 [is_drawing], 1
pop r0
ret
tools_mouse_click_event:
push r0
; first, check if we are attempting to drag or close the window
cmp r2, 16
iflteq jmp drag_or_close_tools_window
; then, handle widget clicks
mov r0, tools_window_struct
call handle_widget_click
pop r0
ret
menu_click_event:
; r2 contains the clicked root menu
; r3 contains the clicked menu item
; canvas
cmp r2, 0
ifz call canvas_menu_click_event
; brush
cmp r2, 1
ifz call brush_menu_click_event
ret
menu_ack_event:
push r0
mov r0, menu_items_root
call close_menu
pop r0
ret
canvas_menu_click_event:
; r2 contains the clicked root menu
; r3 contains the clicked menu item
; clear to black
cmp r3, 0
ifz call clear_canvas_black
; clear to white
cmp r3, 1
ifz call clear_canvas_white
ret
brush_menu_click_event:
; r2 contains the clicked root menu
; r3 contains the clicked menu item
; 2x2
cmp r3, 0
ifz mov.8 [brush_size], 2
; 4x4
cmp r3, 1
ifz mov.8 [brush_size], 4
; 8x8
cmp r3, 2
ifz mov.8 [brush_size], 8
; 16x16
cmp r3, 3
ifz mov.8 [brush_size], 16
ret
tools_button_click_event:
; r1 contains the ID of the clicked button
; colors
; black
cmp r1, 0
ifz mov [color], 0xFF000000
; white
cmp r1, 1
ifz mov [color], 0xFFFFFFFF
; red
cmp r1, 2
ifz mov [color], 0xFF0000FF
; green
cmp r1, 3
ifz mov [color], 0xFF00FF00
; blue
cmp r1, 4
ifz mov [color], 0xFFFF0000
; redraw the "color" text in the clicked color
mov r0, tools_window_struct
call get_window_overlay_number
mov r5, r0
mov r0, color_section_text
mov r1, 32
mov r2, 48
mov r3, [color]
not r3
or r3, 0xFF000000
mov r4, [color]
call draw_str_to_overlay
ret
draw_pixel:
mov r0, canvas_window_struct
call get_window_overlay_number
mov r2, r0
mov r5, r0
call get_mouse_position
call make_coordinates_relative_to_overlay
movz.8 r2, [brush_size]
movz.8 r3, [brush_size]
mov r4, [color]
call draw_filled_rectangle_to_overlay
ret
clear_canvas_black:
mov r0, 0xFF000000
mov r1, canvas_window_struct
call fill_window
ret
clear_canvas_white:
mov r0, 0xFFFFFFFF
mov r1, canvas_window_struct
call fill_window
ret
drag_or_close_canvas_window:
cmp r1, 8
iflteq jmp close_canvas_window
mov r0, canvas_window_struct
call start_dragging_window
pop r0
ret
close_canvas_window:
mov r0, canvas_window_struct
call destroy_window
mov r0, tools_window_struct
call destroy_window
call end_current_task
drag_or_close_tools_window:
cmp r1, 8
iflteq pop r0
iflteq ret
mov r0, tools_window_struct
call start_dragging_window
pop r0
ret
canvas_window_title: data.strz "FoxPaint canvas"
canvas_window_struct: data.fill 0, 36
tools_window_title: data.strz "FoxPaint tools"
tools_window_struct: data.fill 0, 36
color_section_text: data.strz "Color "
color_button_black_widget:
data.32 color_button_white_widget ; next_ptr
data.32 0 ; id
data.32 WIDGET_TYPE_BUTTON ; type
data.32 color_button_text ; text_ptr
data.32 0xFFFFFFFF ; foreground_color
data.32 0xFF000000 ; background_color
data.16 16 ; width
data.16 0 ; reserved
data.16 32 ; x_pos
data.16 64 ; y_pos
color_button_white_widget:
data.32 color_button_red_widget ; next_ptr
data.32 1 ; id
data.32 WIDGET_TYPE_BUTTON ; type
data.32 color_button_text ; text_ptr
data.32 0xFFFFFFFF ; foreground_color
data.32 0xFFFFFFFF ; background_color
data.16 16 ; width
data.16 0 ; reserved
data.16 48 ; x_pos
data.16 64 ; y_pos
color_button_red_widget:
data.32 color_button_green_widget ; next_ptr
data.32 2 ; id
data.32 WIDGET_TYPE_BUTTON ; type
data.32 color_button_text ; text_ptr
data.32 0xFFFFFFFF ; foreground_color
data.32 0xFF0000FF ; background_color
data.16 16 ; width
data.16 0 ; reserved
data.16 64 ; x_pos
data.16 64 ; y_pos
color_button_green_widget:
data.32 color_button_blue_widget ; next_ptr
data.32 3 ; id
data.32 WIDGET_TYPE_BUTTON ; type
data.32 color_button_text ; text_ptr
data.32 0xFFFFFFFF ; foreground_color
data.32 0xFF00FF00 ; background_color
data.16 16 ; width
data.16 0 ; reserved
data.16 32 ; x_pos
data.16 80 ; y_pos
color_button_blue_widget:
data.32 0 ; next_ptr
data.32 4 ; id
data.32 WIDGET_TYPE_BUTTON ; type
data.32 color_button_text ; text_ptr
data.32 0xFFFFFFFF ; foreground_color
data.32 0xFFFF0000 ; background_color
data.16 16 ; width
data.16 0 ; reserved
data.16 48 ; x_pos
data.16 80 ; y_pos
color_button_text: data.strz " "
menu_items_root:
data.8 2 ; number of menus
data.32 menu_items_canvas_list data.32 menu_items_canvas_name ; pointer to menu list, pointer to menu name
data.32 menu_items_brush_list data.32 menu_items_brush_name ; pointer to menu list, pointer to menu name
menu_items_canvas_name:
data.8 6 data.strz "Canvas" ; text length, text, null-terminator
menu_items_brush_name:
data.8 5 data.str "Brush" data.8 0x00 ; text length, text, null-terminator
menu_items_canvas_list:
data.8 2 ; number of items
data.8 16 ; menu width (usually longest item + 2)
data.8 14 data.strz "Clear to Black" ; text length, text, null-terminator
data.8 14 data.strz "Clear to White" ; text length, text, null-terminator
menu_items_brush_list:
data.8 4 ; number of items
data.8 7 ; menu width (usually longest item + 2)
data.8 3 data.str "2x2" data.8 0x00 ; text length, text, null-terminator
data.8 3 data.str "4x4" data.8 0x00 ; text length, text, null-terminator
data.8 3 data.str "8x8" data.8 0x00 ; text length, text, null-terminator
data.8 5 data.strz "16x16" ; text length, text, null-terminator
menu_items_color_list:
data.8 5 ; number of items
data.8 7 ; menu width (usually longest item + 2)
data.8 5 data.strz "Black" ; text length, text, null-terminator
data.8 5 data.strz "White" ; text length, text, null-terminator
data.8 3 data.str "Red" data.8 0x00 ; text length, text, null-terminator
data.8 5 data.strz "Green" ; text length, text, null-terminator
data.8 4 data.str "Blue" data.8 0x00 ; text length, text, null-terminator
is_drawing: data.8 0
brush_size: data.8 4
color: data.32 0xFFFFFFFF
#include "../../../fox32rom/fox32rom.def"
#include "../../fox32os.def"
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