t_edit: new algoritm text selection

img_transform: update program

git-svn-id: svn://kolibrios.org@8036 a494cfbc-eb01-0410-851d-a64ba20cac60

programs/develop/libraries/box_lib/trunk/t_edit.asm

@@ -1,6 +1,6 @@
 ; <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20><><EFBFBD>⥬<EFBFBD><E2A5AC><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⥪<EFBFBD> box_lib.obj
 ; <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> TextEditor <20><><EFBFBD> Kolibri OS
-; 䠩<> <20><>᫥<EFBFBD><E1ABA5><EFBFBD><EFBFBD> ࠧ <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 29.01.2019 IgorA
+; 䠩<> <20><>᫥<EFBFBD><E1ABA5><EFBFBD><EFBFBD> ࠧ <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 10.06.2020 IgorA
 ; <20><> <20><><EFBFBD> <20>ਬ<EFBFBD><E0A8AC><EFBFBD><EFBFBD><EFBFBD> GPL2 <20><>業<EFBFBD><E6A5AD><EFBFBD>
 
 ;input:
@@ -337,8 +337,7 @@ proc ted_key, edit:dword, table:dword, control:dword
 			stdcall ted_draw,edi
 			jmp @f
 		.no_red_0:
-		call ted_draw_main_cursor
+		call ted_sel_end
-		mov ted_drag_k,0 ;<3B><><EFBFBD><EFBFBD><EFBFBD>稢<EFBFBD><E7A8A2><EFBFBD> <20>뤥<EFBFBD><EBA4A5><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 	@@:
 	cmp ah,80 ;177 ;Down
 	jne @f
@@ -350,8 +349,7 @@ proc ted_key, edit:dword, table:dword, control:dword
 			stdcall ted_draw,edi
 			jmp @f
 		.no_red_1:
-		call ted_draw_main_cursor
+		call ted_sel_end
-		mov ted_drag_k,0 ;<3B><><EFBFBD><EFBFBD><EFBFBD>稢<EFBFBD><E7A8A2><EFBFBD> <20>뤥<EFBFBD><EBA4A5><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 	@@:
 	cmp ah,75 ;176 ;Left
 	jne @f
@@ -363,8 +361,7 @@ proc ted_key, edit:dword, table:dword, control:dword
 			stdcall ted_draw,edi
 			jmp @f
 		.no_red_2:
-		call ted_draw_main_cursor
+		call ted_sel_end
-		mov ted_drag_k,0 ;<3B><><EFBFBD><EFBFBD><EFBFBD>稢<EFBFBD><E7A8A2><EFBFBD> <20>뤥<EFBFBD><EBA4A5><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 	@@:
 	cmp ah,77 ;179 ;Right
 	jne @f
@@ -376,8 +373,7 @@ proc ted_key, edit:dword, table:dword, control:dword
 			stdcall ted_draw,edi
 			jmp @f
 		.no_red_3:
-		call ted_draw_main_cursor
+		call ted_sel_end
-		mov ted_drag_k,0 ;<3B><><EFBFBD><EFBFBD><EFBFBD>稢<EFBFBD><E7A8A2><EFBFBD> <20>뤥<EFBFBD><EBA4A5><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 	@@:
 	cmp ah,71 ;180 ;Home
 	jne @f
@@ -389,8 +385,7 @@ proc ted_key, edit:dword, table:dword, control:dword
 			stdcall ted_draw,edi
 			jmp @f
 		.no_red_4:
-		call ted_draw_main_cursor
+		call ted_sel_end
-		mov ted_drag_k,0 ;<3B><><EFBFBD><EFBFBD><EFBFBD>稢<EFBFBD><E7A8A2><EFBFBD> <20>뤥<EFBFBD><EBA4A5><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 	@@:
 	cmp ah,79 ;181 ;End
 	jne @f
@@ -402,8 +397,7 @@ proc ted_key, edit:dword, table:dword, control:dword
 			stdcall ted_draw,edi
 			jmp @f
 		.no_red_5:
-		call ted_draw_main_cursor
+		call ted_sel_end
-		mov ted_drag_k,0 ;<3B><><EFBFBD><EFBFBD><EFBFBD>稢<EFBFBD><E7A8A2><EFBFBD> <20>뤥<EFBFBD><EBA4A5><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 	@@:
 	cmp ah,73 ;184 ;PageUp
 	jne @f
@@ -412,6 +406,7 @@ proc ted_key, edit:dword, table:dword, control:dword
 		je @f
 		call ted_scroll_set_redraw
 		stdcall ted_draw,edi
+		mov ted_drag_k,0 ;<3B><><EFBFBD><EFBFBD><EFBFBD>稢<EFBFBD><E7A8A2><EFBFBD> <20>뤥<EFBFBD><EBA4A5><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 	@@:
 	cmp ah,81 ;183 ;PageDown
 	jne @f
@@ -632,6 +627,29 @@ proc ted_sel_start uses eax ecx
 	ret
 endp
 
+;input:
+; edi = pointer to tedit struct
+;description:
+; <20>㭪<EFBFBD><E3ADAA><EFBFBD> <20><><EFBFBD>뢠<EFBFBD><EBA2A0><EFBFBD><EFBFBD> <20><><EFBFBD> <20><><EFBFBD>⨨ <20>뤥<EFBFBD><EBA4A5><EFBFBD><EFBFBD><EFBFBD>
+align 16
+proc ted_sel_end uses eax
+	mov ted_drag_k,0 ;<3B><><EFBFBD><EFBFBD><EFBFBD>稢<EFBFBD><E7A8A2><EFBFBD> <20>뤥<EFBFBD><EBA4A5><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+	call ted_is_select
+	or al,al
+	jz @f
+		xor eax,eax
+		mov ted_sel_x0,eax
+		mov ted_sel_x1,eax
+		mov ted_sel_y0,eax
+		mov ted_sel_y1,eax
+		stdcall ted_draw,edi
+		jmp .end_f
+	@@:
+	call ted_draw_main_cursor
+	.end_f:
+	ret
+endp
+
 ;input:
 ; edi = pointer to tedit struct
 ;description:
@@ -1396,7 +1414,7 @@ proc ted_convert_sel_text, conv_fun:dword
 		@@:
 	.end_f:
 	popad
-	mov esi,dword[conv_cou]
+	mov esi,[conv_cou]
 	ret
 endp
 
@@ -3223,56 +3241,56 @@ endp
 ; edi = pointer to tedit struct
 align 16
 proc ted_sel_key_left
-  cmp ted_drag_k,1
+	cmp ted_drag_k,1
-  je @f
+	je @f
-    call ted_sel_start
+		call ted_sel_start
-  @@:
+	@@:
-  push dx
+	push dx
-    call ted_cur_move_left
+		call ted_cur_move_left
-    call ted_sel_move
+		call ted_sel_move
-    cmp ted_drag_k,1
+		cmp ted_drag_k,1
-    je @f
+		je @f
-      mov ted_drag_k,1
+			mov ted_drag_k,1
-      mov dl,8
+			mov dl,8
-    @@:
+		@@:
-    cmp dl,8
+		cmp dl,8
-    jne @f
+		jne @f
-      call ted_scroll_set_redraw
+			call ted_scroll_set_redraw
-      stdcall ted_draw,edi
+			stdcall ted_draw,edi
-      jmp .end_f
+			jmp .end_f
-    @@:
+		@@:
-      stdcall ted_draw_cur_line,edi
+		stdcall ted_draw_cur_line,edi
-    .end_f:
+		.end_f:
-  pop dx
+	pop dx
-  ret
+	ret
 endp
 
 ;input:
 ; edi = pointer to tedit struct
 align 16
 proc ted_sel_key_right
-  cmp ted_drag_k,1
+	cmp ted_drag_k,1
-  je @f
+	je @f
-    call ted_sel_start
+		call ted_sel_start
-  @@:
+	@@:
-  push dx
+	push dx
-    call ted_cur_move_right
+		call ted_cur_move_right
-    call ted_sel_move
+		call ted_sel_move
-    cmp ted_drag_k,1
+		cmp ted_drag_k,1
-    je @f
+		je @f
-      mov ted_drag_k,1
+			mov ted_drag_k,1
-      mov dl,8
+			mov dl,8
-    @@:
+		@@:
-    cmp dl,8
+		cmp dl,8
-    jne @f
+		jne @f
-      call ted_scroll_set_redraw
+			call ted_scroll_set_redraw
-      stdcall ted_draw,edi
+			stdcall ted_draw,edi
-      jmp .end_f
+			jmp .end_f
-    @@:
+		@@:
-      stdcall ted_draw_cur_line,edi
+		stdcall ted_draw_cur_line,edi
-    .end_f:
+		.end_f:
-  pop dx
+	pop dx
-  ret
+	ret
 endp
 
 ;input:

programs/media/img_transform/img_transform.asm

@@ -13,7 +13,7 @@ include '../../../programs/develop/libraries/libs-dev/libimg/libimg.inc'
 include '../../../programs/develop/info3ds/info_fun_float.inc'
 
 @use_library_mem mem.Alloc,mem.Free,mem.ReAlloc,dll.Load
-caption db 'Image transform 26.05.20',0 ;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>
+caption db 'Image transform 10.06.20',0 ;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>
 
 offs_zbuf_pbuf equ 24 ;const. from 'zbuffer.inc'
 
@@ -27,6 +27,9 @@ buf2d_size_lt equ dword[edi+4] ;
 buf2d_color equ dword[edi+16] ;梥<> 䮭<> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 buf2d_bits equ byte[edi+20] ;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⢮ <20><><EFBFBD> <20> 1-<2D> <20><>窥 <20><><EFBFBD><EFBFBD>ࠦ<EFBFBD><E0A0A6><EFBFBD><EFBFBD>
 
+NAV_WND_L equ 145
+NAV_WND_T equ 1
+
 include 'select_points.inc'
 
 IMAGE_TOOLBAR_ICON_SIZE equ 16*16*3
@@ -108,6 +111,7 @@ timer_funct:
 	pop ebx eax
 	cmp byte[calc],0
 	je still
+		call draw_nav_wnd
 		call draw_buffers
 	jmp still
 
@@ -142,6 +146,12 @@ pushad
 	@@:
 		stdcall [buf2d_resize],buf_0,ebx,eax,1
 		call calc_nav_params
+		mov eax,[nav_x]
+		call nav_x_corect
+		mov [nav_x],eax
+		mov eax,[nav_y]
+		call nav_y_corect
+		mov [nav_y],eax
 		mov byte[calc],1
 	.end0:
 
@@ -174,12 +184,65 @@ pushad
 	add edx,(25 shl 16) ;
 	int 0x40
 
+	call draw_nav_wnd
 	call draw_buffers
 
 	mcall SF_REDRAW,SSF_END_DRAW
 popad
 	ret
 
+;<3B><>ᮢ<EFBFBD><E1AEA2><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>樮<EFBFBD><E6A8AE><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>
+align 4
+proc draw_nav_wnd
+	cmp dword[buf_i0],0
+	je .end0
+	bt dword[nav_x_min],31
+	jnc .end0
+	bt dword[nav_y_min],31
+	jnc .end0
+pushad
+		mov ebx,(NAV_WND_L shl 16)
+		add ebx,[nav_wnd_w]
+		mov ecx,(NAV_WND_T shl 16)
+		add ecx,[nav_wnd_h]
+		mcall SF_DRAW_RECT,,,0 ;<3B><><EFBFBD><EFBFBD>ࠦ<EFBFBD><E0A0A6><EFBFBD><EFBFBD>
+		mov ecx,[nav_wnd_zoom]
+		mov ebx,[nav_x]
+		neg ebx
+		sar ebx,cl
+		add ebx,NAV_WND_L
+		shl ebx,16
+		add ebx,[buf_0.w]
+		shr bx,cl
+		mov edx,[nav_y]
+		neg edx
+		sar edx,cl
+		add edx,NAV_WND_T
+		shl edx,16
+		add edx,[buf_0.h]
+		shr dx,cl
+		mov ecx,edx
+		mcall ,,,0x404080 ;<3B><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>ࠦ<EFBFBD><E0A0A6><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD>
+		
+		mov edi,sel_pt
+		@@:
+			mov ecx,[nav_wnd_zoom]
+			mov ebx,[edi+point2d.x]
+			shr ebx,cl
+			add ebx,NAV_WND_L
+			mov edx,[edi+point2d.y]
+			shr edx,cl
+			add edx,NAV_WND_T
+			mov ecx,edx
+			mcall SF_PUT_PIXEL,,,0xffff00
+			add edi,sizeof.point2d
+			cmp edi,sel_pt+4*sizeof.point2d
+			jl @b
+popad
+	.end0:
+	ret
+endp
+
 align 4
 proc draw_buffers
 pushad
@@ -456,6 +519,37 @@ proc buf_get_mouse_coord
 	ret
 endp
 
+;output:
+; eax - buffer coord X (<28>᫨ <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD>஬ -1)
+; ebx - buffer coord Y (<28>᫨ <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD>஬ -1)
+align 4
+proc nav_wnd_get_mouse_coord
+	mcall SF_MOUSE_GET,SSF_WINDOW_POSITION
+	cmp ax,NAV_WND_T
+	jl .no_buf ;<3B><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD> y
+	cmp eax,NAV_WND_L shl 16
+	jl .no_buf ;<3B><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD> x
+	mov ebx,eax
+	shr ebx,16
+
+	and eax,0xffff ;<3B><>⠢<EFBFBD>塞 <20><><EFBFBD>न<EFBFBD><E0A4A8><EFBFBD><EFBFBD> y
+	sub ax,NAV_WND_T
+	cmp eax,[nav_wnd_h]
+	jg .no_buf
+	sub bx,NAV_WND_L
+	cmp ebx,[nav_wnd_w]
+	jg .no_buf
+	xchg eax,ebx
+	jmp .end_f
+	.no_buf:
+		xor eax,eax
+		not eax
+		xor ebx,ebx
+		not ebx
+	.end_f:
+	ret
+endp
+
 align 4
 mouse_left_d:
 pushad
@@ -494,7 +588,17 @@ pushad
 			cmp ecx,4
 			jl .cycle0
 			mov dword[sel_act],-1
+		jmp .end2
 	.end0:
+	call nav_wnd_get_mouse_coord
+	cmp eax,-1
+	je .end2
+		mov ecx,[nav_wnd_zoom]
+		shl eax,cl
+		shl ebx,cl
+		stdcall nav_to_point, eax,ebx
+		mov byte[calc],1
+	.end2:
 popad
 	ret
 
@@ -543,26 +647,12 @@ proc mouse_left_u uses eax ebx
 		;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>ࠦ<EFBFBD><E0A0A6><EFBFBD><EFBFBD>
 		mov eax,[nav_y]
 		sub eax,[mouse_down_y]
-		cmp eax,[nav_y_min]
+		call nav_y_corect
-		jge @f
-			mov eax,[nav_y_min]
-		@@:
-		cmp eax,[nav_y_max]
-		jle @f
-			mov eax,[nav_y_max]
-		@@:
 		mov [nav_y],eax
 
 		mov eax,[nav_x]
 		sub eax,[mouse_down_x]
-		cmp eax,[nav_x_min]
+		call nav_x_corect
-		jge @f
-			mov eax,[nav_x_min]
-		@@:
-		cmp eax,[nav_x_max]
-		jle @f
-			mov eax,[nav_x_max]
-		@@:
 		mov [nav_x],eax
 	.end2:
 		mov byte[calc],1
@@ -585,7 +675,7 @@ open_file_size dd 0 ;ࠧ
 
 ;<3B><><EFBFBD><EFBFBD>᫥<EFBFBD><E1ABA5><EFBFBD> <20><>ࠬ<EFBFBD><E0A0AC>஢ <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>樨 <20><> <20><><EFBFBD><EFBFBD>ࠦ<EFBFBD><E0A0A6><EFBFBD><EFBFBD>
 align 4
-proc calc_nav_params uses eax edi
+proc calc_nav_params uses eax ecx edi
 	mov dword[nav_x_max],0
 	mov edi,buf_0
 	mov eax,buf2d_w
@@ -623,6 +713,33 @@ proc calc_nav_params uses eax edi
 		mov [nav_sy],edi
 	@@:
 	shr dword[nav_sy],1
+
+	xor ecx,ecx
+	mov eax,[buf_i0.w]
+	@@:
+		inc ecx
+		shr eax,1
+		cmp eax,100
+		jg @b
+	mov [nav_wnd_zoom],ecx
+	xor ecx,ecx
+	mov eax,[buf_i0.h]
+	@@:
+		inc ecx
+		shr eax,1
+		cmp eax,32
+		jg @b
+	cmp [nav_wnd_zoom],ecx
+	jg @f
+		mov [nav_wnd_zoom],ecx
+	@@:
+	mov ecx,[nav_wnd_zoom]
+	mov eax,[buf_i0.w]
+	shr eax,cl
+	mov [nav_wnd_w],eax
+	mov eax,[buf_i0.h]
+	shr eax,cl
+	mov [nav_wnd_h],eax
 	ret
 endp
 
@@ -699,23 +816,42 @@ proc but_open_file
 		mov edi,buf_i0
 		cmp buf2d_data,0
 		jne .end3
+			stdcall getNextPowerOfTwo,[ebx+8]
+			mov buf2d_h,eax
+			mov edx,eax
 			stdcall getNextPowerOfTwo,[ebx+4]
 			mov buf2d_w,eax
-			m2m buf2d_h,dword[ebx+8] ;+8 = image height
+			cmp edx,[ebx+8]
+			jne @f
 			cmp eax,[ebx+4]
-			jg @f
+			jne @f
-				m2m buf2d_w,dword[ebx+4]
+				;ᮧ<><E1AEA7><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>ࠦ<EFBFBD><E0A0A6><EFBFBD><EFBFBD> <20><> <20><>室<EFBFBD><E5AEA4><EFBFBD> ࠧ<><E0A0A7>ࠬ
 				stdcall [buf2d_create_f_img], edi,[open_file_img]
 				jmp .end_1
 			@@:
+				;ᮧ<><E1AEA7><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>ࠦ<EFBFBD><E0A0A6><EFBFBD><EFBFBD> <20><> <20>८<EFBFBD>ࠧ<EFBFBD><E0A0A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ࠧ<><E0A0A7>ࠬ
+				cmp eax,[ebx+4]
+				jge @f
+					mov eax,[ebx+4]
+					mov buf2d_w,eax
+				@@:
 				sub eax,[ebx+4]
 				shr eax,1
 				mov esi,eax
+				cmp edx,[ebx+8]
+				jge @f
+					mov edx,[ebx+8]
+					mov buf2d_h,edx
+				@@:
+				sub edx,[ebx+8]
+				shr edx,1
 				stdcall [buf2d_create], edi
 				mov [buf_cop.l],si
-				stdcall [buf2d_bit_blt], edi, esi,0, buf_cop
+				mov [buf_cop.t],dx
+				stdcall [buf2d_bit_blt], edi, esi,edx, buf_cop
 				jmp .end_1
 		.end3:
+			;<3B>८<EFBFBD>ࠧ<EFBFBD><E0A0A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᮧ<><E1AEA7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>ࠦ<EFBFBD><E0A0A6><EFBFBD><EFBFBD>
 			stdcall getNextPowerOfTwo,[ebx+4]
 			cmp eax,[ebx+4]
 			jg @f
@@ -816,13 +952,7 @@ proc nav_to_point, coord_x:dword, coord_y:dword
 	mov eax,[buf_0.w]
 	shr eax,1
 	sub eax,[coord_x]
-	cmp eax,[nav_x_min]
+	call nav_x_corect
-	jge @f
-		mov eax,[nav_x_min]
-	@@:
-	cmp eax,[nav_x_max]
-	jle .end0
-		mov eax,[nav_x_max]
 	.end0:
 	mov [nav_x],eax
 	;coord y
@@ -836,17 +966,43 @@ proc nav_to_point, coord_x:dword, coord_y:dword
 	mov eax,[buf_0.h]
 	shr eax,1
 	sub eax,[coord_y]
+	call nav_y_corect
+	.end1:
+	mov [nav_y],eax
+	ret
+endp
+
+;input:
+; eax - navigation coord x
+;output:
+; eax - valid coord x
+align 4
+nav_x_corect:
+	cmp eax,[nav_x_min]
+	jge @f
+		mov eax,[nav_x_min]
+	@@:
+	cmp eax,[nav_x_max]
+	jle @f
+		mov eax,[nav_x_max]
+	@@:
+	ret
+
+;input:
+; eax - navigation coord y
+;output:
+; eax - valid coord y
+align 4
+nav_y_corect:
 	cmp eax,[nav_y_min]
 	jge @f
 		mov eax,[nav_y_min]
 	@@:
 	cmp eax,[nav_y_max]
-	jle .end1
+	jle @f
 		mov eax,[nav_y_max]
-	.end1:
+	@@:
-	mov [nav_y],eax
 	ret
-endp
 
 align 4
 proc getNextPowerOfTwo uses ebx, n:dword
@@ -1412,6 +1568,9 @@ nav_x dd 0 ;⥪
 nav_y dd 0 ;⥪<><E2A5AA>. <20><><EFBFBD><EFBFBD><EFBFBD>. y <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>樨
 nav_sx dd 0 ;<3B><>஫ <20><> x
 nav_sy dd 0 ;<3B><>஫ <20><> y
+nav_wnd_w dd 0 ;<3B><>ਭ<EFBFBD> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>樨
+nav_wnd_h dd 0 ;<3B><>ᮠ<EFBFBD><E1AEA0> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>樨
+nav_wnd_zoom dd 0
 mouse_down_x dd ?
 mouse_down_y dd ?
 sel_act dd ? ;<3B><>窠 <20><><EFBFBD>࠭<EFBFBD><E0A0AD><EFBFBD> <20><><EFBFBD> ।<><E0A5A4><EFBFBD><EFBFBD>஢<EFBFBD><E0AEA2><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>