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ksim65/src/main/kotlin/razorvine/c64emu/GUI.kt

98 lines
3.6 KiB
Kotlin

package razorvine.c64emu
import razorvine.ksim65.Cpu6502
import razorvine.ksim65.components.MemoryComponent
import razorvine.ksim65.components.Rom
import razorvine.ksim65.components.UByte
import java.awt.Color
import java.awt.KeyboardFocusManager
import java.awt.Point
import java.awt.event.KeyEvent
import java.awt.event.KeyListener
import javax.swing.JFrame
import javax.swing.Timer
/**
* Define the C64 character screen matrix: 320x200 pixels,
* 40x25 characters (of 8x8 pixels), and a colored border.
*/
object ScreenDefs {
const val SCREEN_WIDTH_CHARS = 40
const val SCREEN_HEIGHT_CHARS = 25
const val SCREEN_WIDTH = SCREEN_WIDTH_CHARS*8
const val SCREEN_HEIGHT = SCREEN_HEIGHT_CHARS*8
const val PIXEL_SCALING = 3.0
const val ASPECT_RATIO = 1.06 // c64 PAL pixels are slightly taller than wide
const val BORDER_SIZE = 24
class Palette {
// this is Pepto's Commodore-64 palette http://www.pepto.de/projects/colorvic/
private val sixteenColors = listOf(Color(0x000000), // 0 = black
Color(0xFFFFFF), // 1 = white
Color(0x813338), // 2 = red
Color(0x75cec8), // 3 = cyan
Color(0x8e3c97), // 4 = purple
Color(0x56ac4d), // 5 = green
Color(0x2e2c9b), // 6 = blue
Color(0xedf171), // 7 = yellow
Color(0x8e5029), // 8 = orange
Color(0x553800), // 9 = brown
Color(0xc46c71), // 10 = light red
Color(0x4a4a4a), // 11 = dark grey
Color(0x7b7b7b), // 12 = medium grey
Color(0xa9ff9f), // 13 = light green
Color(0x706deb), // 14 = light blue
Color(0xb2b2b2) // 15 = light grey
)
operator fun get(i: Int): Color = sixteenColors[i and 15]
operator fun get(i: UByte): Color = sixteenColors[i.toInt() and 15]
}
val colorPalette = Palette()
}
class MainC64Window(title: String, chargen: Rom, val ram: MemoryComponent, val cpu: Cpu6502, private val keypressCia: Cia) :
JFrame(title), KeyListener {
init {
defaultCloseOperation = EXIT_ON_CLOSE
isResizable = false
isFocusable = true
add(Screen(chargen, ram))
addKeyListener(this)
pack()
setLocationRelativeTo(null)
location = Point(location.x/2, location.y)
setFocusTraversalKeys(KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS, mutableSetOf())
setFocusTraversalKeys(KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS, mutableSetOf())
requestFocusInWindow()
}
fun start(updateRate: Int) {
// repaint the screen's back buffer
val repaintTimer = Timer(1000/updateRate) {
repaint()
}
repaintTimer.initialDelay = 0
repaintTimer.start()
}
// keyboard events:
override fun keyTyped(event: KeyEvent) {}
override fun keyPressed(event: KeyEvent) {
// '\' is mapped as RESTORE, this causes a NMI on the cpu
if (event.keyChar == '\\') {
cpu.nmiAsserted = true
} else {
keypressCia.hostKeyPressed(event)
}
}
override fun keyReleased(event: KeyEvent) {
keypressCia.hostKeyPressed(event)
}
}