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foxpaint: Add a very basic color picker window using button widgets

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This commit is contained in:
Ry 2023-01-18 17:55:12 -08:00
parent d072478152
commit aad731da31
1 changed files with 198 additions and 34 deletions
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232
applications/foxpaint/main.asm
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@ -1,8 +1,8 @@
; mouse painting demo
; simple paint application
mov r0, window_struct
mov r1, window_title
mov r2, 640
mov r0, canvas_window_struct
mov r1, canvas_window_title
mov r2, 512
mov r3, 448
mov r4, 0
mov r5, 16
@ -10,13 +10,50 @@
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:
mov r0, window_struct
; canvas events
mov r0, canvas_window_struct
call get_next_window_event
; was the mouse clicked?
cmp r0, EVENT_TYPE_MOUSE_CLICK
ifz call mouse_click_event
ifz call canvas_mouse_click_event
; was the mouse released?
cmp r0, EVENT_TYPE_MOUSE_RELEASE
@ -39,18 +76,52 @@ event_loop:
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
mouse_click_event:
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_window
iflteq jmp drag_or_close_canvas_window
; if not, enable the drawing flag
mov.8 [is_drawing], 1
@ -58,6 +129,20 @@ mouse_click_event:
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
@ -70,10 +155,6 @@ menu_click_event:
cmp r2, 1
ifz call brush_menu_click_event
; color
cmp r2, 2
ifz call color_menu_click_event
ret
menu_ack_event:
@ -121,34 +202,48 @@ brush_menu_click_event:
ret
color_menu_click_event:
; r2 contains the clicked root menu
; r3 contains the clicked menu item
tools_button_click_event:
; r1 contains the ID of the clicked button
; colors
; black
cmp r3, 0
cmp r1, 0
ifz mov [color], 0xFF000000
; white
cmp r3, 1
cmp r1, 1
ifz mov [color], 0xFFFFFFFF
; red
cmp r3, 2
cmp r1, 2
ifz mov [color], 0xFF0000FF
; green
cmp r3, 3
cmp r1, 3
ifz mov [color], 0xFF00FF00
; blue
cmp r3, 4
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, window_struct
mov r0, canvas_window_struct
call get_window_overlay_number
mov r2, r0
mov r5, r0
@ -163,44 +258,113 @@ draw_pixel:
clear_canvas_black:
mov r0, 0xFF000000
mov r1, window_struct
mov r1, canvas_window_struct
call fill_window
ret
clear_canvas_white:
mov r0, 0xFFFFFFFF
mov r1, window_struct
mov r1, canvas_window_struct
call fill_window
ret
drag_or_close_window:
drag_or_close_canvas_window:
cmp r1, 8
iflteq jmp close_window
mov r0, window_struct
iflteq jmp close_canvas_window
mov r0, canvas_window_struct
call start_dragging_window
pop r0
ret
close_window:
mov r0, window_struct
close_canvas_window:
mov r0, canvas_window_struct
call destroy_window
mov r0, tools_window_struct
call destroy_window
call end_current_task
window_title: data.str "FoxPaint" data.8 0
window_struct: data.fill 0, 36
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.str "FoxPaint canvas" data.8 0
canvas_window_struct: data.fill 0, 36
tools_window_title: data.str "FoxPaint tools" data.8 0
tools_window_struct: data.fill 0, 36
color_section_text: data.str "Color " data.8 0
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.str " " data.8 0
menu_items_root:
data.8 3 ; number of menus
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
data.32 menu_items_color_list data.32 menu_items_color_name ; pointer to menu list, pointer to menu name
menu_items_canvas_name:
data.8 6 data.str "Canvas" data.8 0x00 ; 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_color_name:
data.8 5 data.str "Color" 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)