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https://github.com/fadden/6502bench.git
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120 lines
3.9 KiB
C#
120 lines
3.9 KiB
C#
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/*
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* Copyright 2018 faddenSoft
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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using System;
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using System.Windows.Forms;
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using Asm65;
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namespace SourceGen.AppForms {
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public partial class GotoBox : Form {
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/// <summary>
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/// On success, this will hold the target offset.
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/// </summary>
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public int TargetOffset { get; private set; }
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/// <summary>
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/// Reference to project.
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/// </summary>
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private DisasmProject mProject;
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/// <summary>
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/// Reference to formatter. This determines how values are displayed.
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/// </summary>
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private Formatter mFormatter;
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public GotoBox(DisasmProject proj, Formatter formatter) {
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InitializeComponent();
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mProject = proj;
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mFormatter = formatter;
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TargetOffset = -1;
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}
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private void GotoBox_Load(object sender, EventArgs e) {
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UpdateDisplay();
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}
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// Without a "cancel" button, the escape key does nothing.
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protected override bool ProcessCmdKey(ref Message msg, Keys keyData) {
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if (keyData == Keys.Escape) {
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Close();
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return true;
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}
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return base.ProcessCmdKey(ref msg, keyData);
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}
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private void okButton_Click(object sender, EventArgs e) {
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}
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private void targetTextBox_TextChanged(object sender, EventArgs e) {
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ProcessInput();
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UpdateDisplay();
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okButton.Enabled = (TargetOffset >= 0);
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}
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private void ProcessInput() {
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TargetOffset = -1;
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string input = targetTextBox.Text.Trim();
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if (string.IsNullOrEmpty(input)) {
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return;
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}
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if (input[0] == '+') {
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// this can only be an offset; convert as hexadecimal number
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try {
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TargetOffset = Convert.ToInt32(input.Substring(1), 16);
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} catch (Exception) {
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}
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return;
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}
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// Try it as a label. If they give the label a hex name (e.g. "A001") they
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// can prefix it with '$' to disambiguate the address.
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int labelOffset = mProject.FindLabelByName(input);
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if (labelOffset >= 0) {
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TargetOffset = labelOffset;
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} else if (Address.ParseAddress(input, 1<<24, out int addr)) {
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// could be a valid address
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int offset = mProject.AddrMap.AddressToOffset(0, addr);
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if (offset >= 0) {
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TargetOffset = offset;
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}
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}
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}
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private void UpdateDisplay() {
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string offsetStr = string.Empty;
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string addressStr = string.Empty;
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string labelStr = string.Empty;
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if (TargetOffset >= 0) {
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offsetStr = mFormatter.FormatOffset24(TargetOffset);
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int addr = mProject.GetAnattrib(TargetOffset).Address;
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addressStr = mFormatter.FormatAddress(addr, addr > 0xffff);
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Symbol sym = mProject.GetAnattrib(TargetOffset).Symbol;
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if (sym != null) {
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labelStr = sym.Label;
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}
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}
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offsetValueLabel.Text = offsetStr;
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addressValueLabel.Text = addressStr;
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labelValueLabel.Text = labelStr;
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}
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}
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}
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