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Routines |
| Prev: E229 | Up: Map | Next: E376 |
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Used by the routines at ShowTitleMenu and DrawPanel.
Draws a frame, from an entry of 05 bytes in the table at FrameTable, and moves on to the next entry. The edges of the frame are made with DrawFrameLeft, DrawFrameLeft_Draw and DrawFrameBar, and the corners with DrawFrameCorners.
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| DrawFrame | E2E9 | LD A,(IX+$04) | Fetch the attribute of the frame. | ||||||||||
| E2EC | LD ($AAE4),A | Store it in the colour rectangle at AAE4. | |||||||||||
| E2EF | LD L,(IX+$00) | Fetch the x position of the frame into L. | |||||||||||
| E2F2 | LD H,(IX+$01) | Fetch the y position of the frame into H. | |||||||||||
| E2F5 | PUSH HL | Save the position. | |||||||||||
| E2F6 | PUSH HL | Save it again. | |||||||||||
| E2F7 | INC H | Move down a pixel line, to the row below the frame. | |||||||||||
| E2F8 | LD C,(IX+$02) | Fetch the width of the frame. | |||||||||||
| E2FB | LD B,$01 | Set the height of the rectangle to one row. | |||||||||||
| E2FD | LD ($AAE2),BC | Store the width and the height in the rectangle. | |||||||||||
| E301 | CALL FillScratchRectangle | Colour the row below the frame. | |||||||||||
| E304 | POP HL | Restore the position. | |||||||||||
| E305 | LD B,(IX+$03) | Fetch the height of the frame in pixel lines. | |||||||||||
| E308 | LD A,H | Copy the y position into A. | |||||||||||
| E309 | SUB B | Subtract the height of the frame. | |||||||||||
| E30A | LD H,A | Copy it into H, to find the row above the frame. | |||||||||||
| E30B | CALL FillScratchRectangle | Colour the row above the frame. | |||||||||||
| E30E | POP HL | Restore the position. | |||||||||||
| E30F | DEC L | Move one pixel to the left, beside the frame. | |||||||||||
| E310 | INC H | Move down a pixel line. | |||||||||||
| E311 | PUSH HL | Save the position. | |||||||||||
| E312 | LD C,$01 | Set the width of the rectangle to one cell. | |||||||||||
| E314 | LD A,(IX+$03) | Fetch the height of the frame. | |||||||||||
| E317 | ADD A,$17 | Round it up to a whole number of rows. | |||||||||||
| E319 | SRL A | Halve it. | |||||||||||
| E31B | SRL A | Halve it again. | |||||||||||
| E31D | SRL A | Halve it a third time, to find the height in rows. | |||||||||||
| E31F | LD B,A | Copy it into B. | |||||||||||
| E320 | LD ($AAE2),BC | Store the width and the height in the rectangle. | |||||||||||
| E324 | CALL FillScratchRectangle | Colour the column on the left of the frame. | |||||||||||
| E327 | POP HL | Restore the position. | |||||||||||
| E328 | LD A,(IX+$02) | Fetch the width of the frame. | |||||||||||
| E32B | ADD A,A | Double it. | |||||||||||
| E32C | ADD A,A | Double it again. | |||||||||||
| E32D | ADD A,A | Double it a third time, to find the width in pixels. | |||||||||||
| E32E | ADD A,L | Add the x position. | |||||||||||
| E32F | INC A | Add one to find the column on the right of the frame. | |||||||||||
| E330 | LD L,A | Copy it into L. | |||||||||||
| E331 | CALL FillScratchRectangle | Colour the column on the right of the frame. | |||||||||||
| E334 | LD L,(IX+$00) | Fetch the x position of the frame into L. | |||||||||||
| E337 | LD H,(IX+$01) | Fetch the y position of the frame into H. | |||||||||||
| E33A | CALL DrawFrameLeft | Draw the left edge of the frame. | |||||||||||
| E33D | LD A,L | Fetch the x position of the left edge. | |||||||||||
| E33E | ADD A,(IX+$02) | Add the width of the frame. | |||||||||||
| E341 | INC A | Add one. | |||||||||||
| E342 | LD L,A | Copy the position of the right edge into L. | |||||||||||
| E343 | CALL DrawFrameLeft_Draw | Draw the right edge of the frame. | |||||||||||
| E346 | LD A,(IX+$01) | Fetch the y position of the frame. | |||||||||||
| E349 | ADD A,$06 | Add 06 to find the y position of the bottom bar. | |||||||||||
| E34B | LD H,A | Copy it into H. | |||||||||||
| E34C | SUB (IX+$03) | Subtract the height of the frame. | |||||||||||
| E34F | SUB $08 | Subtract eight to find the y position of the top bar. | |||||||||||
| E351 | LD ($E358),A | Patch it into the instruction at E358. | |||||||||||
| E354 | CALL DrawFrameBar | Draw the bottom bar of the frame. | |||||||||||
| E357 | LD H,$00 | Set H to the y position of the top bar (this is patched at E358). | |||||||||||
| E359 | CALL DrawFrameBar | Draw the top bar of the frame. | |||||||||||
| E35C | LD DE,$E38C | Point DE at FrameCornerPictures. | |||||||||||
| E35F | LD A,(IX+$01) | Fetch the y position of the frame. | |||||||||||
| E362 | ADD A,$06 | Add 06 to find the y position of the bottom bar. | |||||||||||
| E364 | CALL DrawFrameCorners | Draw the corners of the bottom bar. | |||||||||||
| E367 | LD A,(IX+$01) | Fetch the y position of the frame. | |||||||||||
| E36A | SUB (IX+$03) | Subtract the height of the frame. | |||||||||||
| E36D | CALL DrawFrameCorners | Draw the corners of the top bar. | |||||||||||
| E370 | LD DE,$0005 | Set the length of an entry of the frame table. | |||||||||||
| E373 | ADD IX,DE | Move IX on to the next entry. | |||||||||||
| E375 | RET | Return. | |||||||||||
| Prev: E229 | Up: Map | Next: E376 |
