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+/* Starshatter OpenSource Distribution
+ Copyright (c) 1997-2004, Destroyer Studios LLC.
+ All Rights Reserved.
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are met:
+
+ * Redistributions of source code must retain the above copyright notice,
+ this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+ * Neither the name "Destroyer Studios" nor the names of its contributors
+ may be used to endorse or promote products derived from this software
+ without specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ POSSIBILITY OF SUCH DAMAGE.
+
+ SUBSYSTEM: nGenEx.lib
+ FILE: EditBox.cpp
+ AUTHOR: John DiCamillo
+
+
+ OVERVIEW
+ ========
+ EditBox ActiveWindow class
+*/
+
+#include "MemDebug.h"
+#include "EditBox.h"
+#include "FormWindow.h"
+#include "Video.h"
+#include "Font.h"
+#include "Keyboard.h"
+#include "Mouse.h"
+
+DWORD GetRealTime();
+
+// +--------------------------------------------------------------------+
+
+static int old_cursor;
+
+// +--------------------------------------------------------------------+
+
+EditBox::EditBox(ActiveWindow* p, int ax, int ay, int aw, int ah, DWORD aid)
+ : ScrollWindow(p->GetScreen(), ax, ay, aw, ah, aid, 0, p), caret_x(0), caret_y(0)
+{
+ sel_start = 0;
+ sel_length = 0;
+ h_offset = 0;
+ pass_char = 0;
+
+ selected_color = Color::Yellow;
+
+ char buf[32];
+ sprintf_s(buf, "EditBox %d", id);
+ desc = buf;
+}
+
+EditBox::EditBox(Screen* s, int ax, int ay, int aw, int ah, DWORD aid)
+ : ScrollWindow(s, ax, ay, aw, ah, aid), caret_x(0), caret_y(0)
+{
+ sel_start = 0;
+ sel_length = 0;
+ h_offset = 0;
+ pass_char = 0;
+
+ selected_color = Color::Yellow;
+
+ char buf[32];
+ sprintf_s(buf, "EditBox %d", id);
+ desc = buf;
+}
+
+EditBox::~EditBox()
+{
+}
+
+// +--------------------------------------------------------------------+
+
+void
+EditBox::DrawContent(const Rect& ctrl_rect)
+{
+ int h = rect.h;
+
+ if (line_height < 1)
+ line_height = GetFont()->Height();
+ page_size = h / (line_height + leading);
+}
+
+// +--------------------------------------------------------------------+
+
+void
+EditBox::DrawTabbedText()
+{
+ if (font && text.length()) {
+ int border_size = 4;
+
+ if (style & WIN_RAISED_FRAME && style & WIN_SUNK_FRAME)
+ border_size = 8;
+
+ Rect label_rect = rect;
+
+ label_rect.x = border_size;
+ label_rect.y = border_size;
+ label_rect.w -= border_size * 2;
+ label_rect.h -= border_size * 2;
+
+ if (focus)
+ font->SetCaretIndex(sel_start);
+
+ // if displaying in password mode, create a display string
+ // containing the proper number of password chars:
+ Text s = text;
+ if (pass_char)
+ s = Text(pass_char, text.length());
+
+ // no tabs set:
+ if (tab[0] == 0) {
+ DWORD text_flags = DT_WORDBREAK | text_align;
+
+ if (single_line)
+ text_flags = text_flags | DT_SINGLELINE;
+
+ if (style & WIN_TEXT_SHADOW) {
+ label_rect.x++;
+ label_rect.y++;
+
+ font->SetColor(back_color);
+ DrawText(s.data() + h_offset, 0, label_rect, text_flags);
+
+ label_rect.x--;
+ label_rect.y--;
+ }
+
+ font->SetColor(fore_color);
+ DrawText(s.data() + h_offset, 0, label_rect, text_flags);
+ }
+
+ // use tabs:
+ else {
+ }
+
+ font->SetCaretIndex(-1);
+ }
+ else {
+ caret_x = 2;
+ caret_y = 3;
+ }
+}
+
+// +--------------------------------------------------------------------+
+
+Color EditBox::GetSelectedColor()
+{
+ return selected_color;
+}
+
+void EditBox::SetSelectedColor(Color c)
+{
+ if (selected_color != c) {
+ selected_color = c;
+ }
+}
+
+Text EditBox::GetSelText()
+{
+ if (sel_start == 0 && sel_length == text.length())
+ return text;
+
+ Text selection;
+ char* buf = new(__FILE__,__LINE__) char[sel_length+1];
+
+ if (buf) {
+ for (int i = 0; i < sel_length; i++)
+ buf[i] = text[(int) (sel_start + i)];
+
+ buf[sel_length] = 0;
+
+ selection = buf;
+ delete [] buf;
+ }
+
+ return selection;
+}
+
+void EditBox::SetSelStart(int n)
+{
+ if (n >= 0 && n <= text.length())
+ sel_start = n;
+}
+
+void EditBox::SetSelLength(int n)
+{
+ if (n <= text.length() - sel_start)
+ sel_length = n;
+}
+
+void EditBox::EnsureCaretVisible()
+{
+ if (!single_line) {
+ h_offset = 0;
+ return;
+ }
+
+ if (sel_start < 0) {
+ sel_start = 0;
+ h_offset = 0;
+ }
+
+ else if (sel_start > h_offset) {
+ int x_caret;
+ bool moved;
+
+ do {
+ x_caret = 0;
+ moved = false;
+
+ if (pass_char) {
+ Text pass = Text(pass_char, sel_start-h_offset);
+ x_caret += font->StringWidth(pass.data(), pass.length());
+ }
+ else {
+ Text sub = text.substring(h_offset, sel_start-h_offset);
+ x_caret += font->StringWidth(sub.data(), sub.length());
+ }
+
+ if (x_caret >= Width()-4) {
+ if (h_offset < text.length()) {
+ h_offset++;
+ moved = true;
+ }
+ }
+ }
+ while (moved);
+ }
+
+ else {
+ h_offset = sel_start;
+ }
+}
+
+bool EditBox::CanScroll(int dir, int nlines)
+{
+ return false;
+}
+
+void EditBox::Scroll(int direction, int nlines)
+{
+ scrolling = SCROLL_NONE;
+}
+
+void EditBox::ScrollTo(int index)
+{
+}
+
+int EditBox::GetPageCount()
+{
+ return 1;
+}
+
+int EditBox::GetPageSize()
+{
+ return page_size;
+}
+
+// +--------------------------------------------------------------------+
+
+void EditBox::SetFocus()
+{
+ ActiveWindow::SetFocus();
+
+ sel_start = text.length();
+ sel_length = 0;
+}
+
+void EditBox::KillFocus()
+{
+ ActiveWindow::KillFocus();
+}
+
+// +--------------------------------------------------------------------+
+
+int EditBox::CaretFromPoint(int x, int y) const
+{
+ return 0;
+}
+
+// +--------------------------------------------------------------------+
+
+int EditBox::OnMouseMove(int x, int y)
+{
+ return ActiveWindow::OnMouseMove(x,y);
+}
+
+// +--------------------------------------------------------------------+
+
+int EditBox::OnLButtonDown(int x, int y)
+{
+ return ActiveWindow::OnLButtonDown(x,y);
+}
+
+// +--------------------------------------------------------------------+
+
+int EditBox::OnLButtonUp(int x, int y)
+{
+ return ActiveWindow::OnLButtonUp(x,y);
+}
+
+// +--------------------------------------------------------------------+
+
+int EditBox::OnClick()
+{
+ int fire_click = !scrolling;
+
+ if (scrolling == SCROLL_THUMB)
+ scrolling = SCROLL_NONE;
+
+ if (fire_click)
+ return ActiveWindow::OnClick();
+
+ return 0;
+}
+
+// +--------------------------------------------------------------------+
+
+void EditBox::Insert(char c)
+{
+ if (single_line && c == '\n')
+ return;
+
+ if (sel_start < text.length()) {
+ if (sel_start == 0) {
+ text = Text(c) + text;
+ sel_start = 1;
+ }
+ else {
+ Text t1 = text.substring(0, sel_start);
+ Text t2 = text.substring(sel_start, text.length()-sel_start);
+ text = t1 + Text(c) + t2;
+ sel_start++;
+ }
+ }
+ else {
+ text += c;
+ sel_start = text.length();
+ }
+
+ EnsureCaretVisible();
+}
+
+void EditBox::Insert(const char* s)
+{
+}
+
+void EditBox::Delete()
+{
+ if (sel_start < text.length()) {
+ if (sel_start == 0) {
+ text = text.substring(1, text.length()-1);
+ }
+ else {
+ Text t1 = text.substring(0, sel_start);
+ Text t2 = text.substring(sel_start+1, text.length()-sel_start-1);
+ text = t1 + t2;
+ }
+ }
+
+ EnsureCaretVisible();
+}
+
+void EditBox::Backspace()
+{
+ if (sel_start > 0) {
+ if (sel_start == text.length()) {
+ text = text.substring(0, sel_start-1);
+ }
+ else {
+ Text t1 = text.substring(0, sel_start-1);
+ Text t2 = text.substring(sel_start, text.length()-sel_start);
+ text = t1 + t2;
+ }
+
+ sel_start--;
+ EnsureCaretVisible();
+ }
+}
+
+int EditBox::OnKeyDown(int vk, int flags)
+{
+ if (vk >= 'A' && vk <= 'Z') {
+ if (flags & 1)
+ Insert((char) vk);
+ else
+ Insert((char) tolower(vk));
+ }
+ else {
+ switch (vk) {
+ case VK_LEFT:
+ if (sel_start > 0) sel_start--;
+ EnsureCaretVisible();
+ break;
+
+ case VK_RIGHT:
+ if (sel_start < text.length()) sel_start++;
+ EnsureCaretVisible();
+ break;
+
+ case VK_HOME:
+ sel_start = 0;
+ EnsureCaretVisible();
+ break;
+
+ case VK_END:
+ sel_start = text.length();
+ EnsureCaretVisible();
+ break;
+
+ case VK_DELETE: Delete(); break;
+ case VK_BACK: Backspace(); break;
+
+ case VK_SPACE: Insert(' '); break;
+ case VK_RETURN: Insert('\n'); break;
+
+ case VK_NUMPAD0: Insert('0'); break;
+ case VK_NUMPAD1: Insert('1'); break;
+ case VK_NUMPAD2: Insert('2'); break;
+ case VK_NUMPAD3: Insert('3'); break;
+ case VK_NUMPAD4: Insert('4'); break;
+ case VK_NUMPAD5: Insert('5'); break;
+ case VK_NUMPAD6: Insert('6'); break;
+ case VK_NUMPAD7: Insert('7'); break;
+ case VK_NUMPAD8: Insert('8'); break;
+ case VK_NUMPAD9: Insert('9'); break;
+ case VK_DECIMAL: Insert('.'); break;
+ case VK_ADD: Insert('+'); break;
+ case VK_SUBTRACT: Insert('-'); break;
+ case VK_MULTIPLY: Insert('*'); break;
+ case VK_DIVIDE: Insert('/'); break;
+
+ case '0': if (flags & 1) Insert(')'); else Insert('0'); break;
+ case '1': if (flags & 1) Insert('!'); else Insert('1'); break;
+ case '2': if (flags & 1) Insert('@'); else Insert('2'); break;
+ case '3': if (flags & 1) Insert('#'); else Insert('3'); break;
+ case '4': if (flags & 1) Insert('$'); else Insert('4'); break;
+ case '5': if (flags & 1) Insert('%'); else Insert('5'); break;
+ case '6': if (flags & 1) Insert('^'); else Insert('6'); break;
+ case '7': if (flags & 1) Insert('&'); else Insert('7'); break;
+ case '8': if (flags & 1) Insert('*'); else Insert('8'); break;
+ case '9': if (flags & 1) Insert('('); else Insert('9'); break;
+ case 186: if (flags & 1) Insert(':'); else Insert(';'); break;
+ case 187: if (flags & 1) Insert('+'); else Insert('='); break;
+ case 188: if (flags & 1) Insert('<'); else Insert(','); break;
+ case 189: if (flags & 1) Insert('_'); else Insert('-'); break;
+ case 190: if (flags & 1) Insert('>'); else Insert('.'); break;
+ case 191: if (flags & 1) Insert('?'); else Insert('/'); break;
+ case 192: if (flags & 1) Insert('~'); else Insert('`'); break;
+ case 219: if (flags & 1) Insert('{'); else Insert('['); break;
+ case 221: if (flags & 1) Insert('}'); else Insert(']'); break;
+ case 220: if (flags & 1) Insert('|'); else Insert('\\'); break;
+ case 222: if (flags & 1) Insert('"'); else Insert('\''); break;
+ }
+ }
+
+ return ActiveWindow::OnKeyDown(vk, flags);
+}
generated by cgit v1.1 at 2024-11-04 21:51:34 +0000