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https://github.com/weiju/amiga-stuff
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added requesters sub project
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Wei-ju Wu
189
requesters/main.c
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189
requesters/main.c
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/* main.c - requester demo application
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This file is part of amiga-stuff.
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amiga-stuff is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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amiga-stuff is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with amiga30yrs. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <string.h>
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#include <exec/libraries.h>
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#include <intuition/intuition.h>
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#include <clib/alib_protos.h>
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#include <clib/exec_protos.h>
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#include <clib/graphics_protos.h>
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#include <clib/intuition_protos.h>
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#ifdef __VBCC__
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#include <clib/alib_stdio_protos.h>
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#endif
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#include "filereq.h"
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#define WIN_LEFT 10
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#define WIN_TOP 10
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#define WIN_WIDTH 340
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#define WIN_HEIGHT 220
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#define WIN_TITLE "IFF Viewer"
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#define WIN_MIN_WIDTH 10
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#define WIN_MIN_HEIGHT 10
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#define WIN_MAX_WIDTH WIN_WIDTH
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#define WIN_MAX_HEIGHT WIN_HEIGHT
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#define FILE_MENU_NUM 0
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#define NUM_FILE_MENU_ITEMS 2
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#define OPEN_MENU_ITEM_NUM 0
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#define QUIT_MENU_ITEM_NUM 1
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struct NewWindow newwin = {
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WIN_LEFT, WIN_TOP, WIN_WIDTH, WIN_HEIGHT, 0, 1,
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IDCMP_CLOSEWINDOW | IDCMP_MENUPICK | IDCMP_GADGETUP | IDCMP_REQCLEAR,
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WINDOWCLOSE | SMART_REFRESH | ACTIVATE | WINDOWSIZING | WINDOWDRAG | WINDOWDEPTH | NOCAREREFRESH,
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NULL, NULL, WIN_TITLE,
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NULL, NULL,
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WIN_MIN_WIDTH, WIN_MIN_HEIGHT,
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WIN_MAX_WIDTH, WIN_MAX_HEIGHT,
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WBENCHSCREEN
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};
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struct IntuiText menutext[] = {
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{0, 1, JAM2, 0, 1, NULL, "Open...", NULL},
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{0, 1, JAM2, 0, 1, NULL, "Quit", NULL}
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};
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struct MenuItem fileMenuItems[] = {
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{&fileMenuItems[1], 0, 0, 0, 0, ITEMTEXT | ITEMENABLED | HIGHCOMP | COMMSEQ, 0,
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&menutext[0], NULL, 'O', NULL, 0},
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{NULL, 0, 0, 0, 0, ITEMTEXT | ITEMENABLED | HIGHCOMP | COMMSEQ, 0,
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&menutext[1], NULL, 'Q', NULL, 0}
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};
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struct Menu menus[] = {
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{NULL, 20, 0, 0, 0, MENUENABLED | MIDRAWN, "File", &fileMenuItems[0], 0, 0, 0, 0}
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};
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struct Window *window;
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void cleanup()
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{
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if (window) {
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ClearMenuStrip(window);
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CloseWindow(window);
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}
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}
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struct Requester *filereq;
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BOOL handle_menu(UWORD menuNum, UWORD itemNum, UWORD subItemNum)
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{
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printf("menu, menu num: %d, item num: %d, sub item num: %d\n",
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(int) menuNum, (int) itemNum, (int) subItemNum);
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if (menuNum == FILE_MENU_NUM && itemNum == QUIT_MENU_ITEM_NUM) {
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/* quit */
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return TRUE;
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}
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if (menuNum == FILE_MENU_NUM && itemNum == OPEN_MENU_ITEM_NUM) {
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filereq = open_file(window);
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}
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return FALSE;
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}
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void handle_events()
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{
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BOOL done = FALSE;
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struct IntuiMessage *msg;
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ULONG msgClass;
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UWORD menuCode;
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int buttonId;
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while (!done) {
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Wait(1 << window->UserPort->mp_SigBit);
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if (msg = (struct IntuiMessage *) GetMsg(window->UserPort)) {
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msgClass = msg->Class;
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switch (msgClass) {
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case IDCMP_CLOSEWINDOW:
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done = TRUE;
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break;
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case IDCMP_MENUPICK:
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menuCode = msg->Code;
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done = handle_menu(MENUNUM(menuCode), ITEMNUM(menuCode), SUBNUM(menuCode));
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break;
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case IDCMP_GADGETUP:
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buttonId = (int) ((struct Gadget *) (msg->IAddress))->GadgetID;
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if (buttonId == REQ_OK_BUTTON_ID && filereq) EndRequest(filereq, window);
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else if (buttonId == REQ_CANCEL_BUTTON_ID && filereq) EndRequest(filereq, window);
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break;
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case IDCMP_REQCLEAR:
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puts("requester closed");
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break;
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default:
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break;
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}
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ReplyMsg((struct Message *) msg);
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}
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}
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}
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void setup_menu()
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{
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UWORD txWidth, txHeight, txBaseline, txSpacing, itemWidth, itemHeight, numItems;
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struct RastPort *rp = &window->WScreen->RastPort;
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int i;
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txWidth = rp->TxWidth;
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txHeight = rp->TxHeight;
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txBaseline = rp->TxBaseline;
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txSpacing = rp->TxSpacing;
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printf("TxWidth: %d, TxHeight: %d, TxBaseline: %d, TxSpacing: %d\n",
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(int) txWidth, (int) txHeight, (int) txBaseline, (int) txSpacing);
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/* Set file menu bounds */
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menus[0].Width = TextLength(rp, "File", strlen("File")) + txWidth;
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menus[0].Height = txHeight;
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/* Set file menu items bounds */
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/* We actually need to know what the command uses up */
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itemWidth = txWidth * strlen("Open...") + 50;
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itemHeight = txHeight + 2; /* 2 pixels adjustment */
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numItems = sizeof(fileMenuItems) / sizeof(struct MenuItem);
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printf("# file items: %d\n", (int) numItems);
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for (i = 0; i < numItems; i++) {
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fileMenuItems[i].TopEdge = i * itemHeight;
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fileMenuItems[i].Height = itemHeight;
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fileMenuItems[i].Width = itemWidth;
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}
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SetMenuStrip(window, &menus[0]);
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}
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/* Defined automatically in VBCC */
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extern struct Library *DOSBase;
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int main(int argc, char **argv)
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{
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/* version: e.g. 34, revision e.g. 3 for Kickstart 1.3 */
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printf("DOS, version: %d, revision: %d\n",
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(int) DOSBase->lib_Version, (int) DOSBase->lib_Revision);
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/* Adjust the new screen according to the IFF image */
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if (window = OpenWindow(&newwin)) {
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setup_menu();
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// Note: rastport is the entire window, including title bars
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//DrawImage(window->RPort, &image, 2, 10);
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handle_events();
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}
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cleanup();
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return 1;
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}
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