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amiga-stuff/requesters/filereq.c

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#include <string.h>
#include <intuition/intuition.h>
#include <graphics/clip.h>
#include <dos/dosextens.h>
#include <clib/exec_protos.h>
#include <clib/intuition_protos.h>
#include <clib/graphics_protos.h>
#include <clib/layers_protos.h>
#include <clib/dos_protos.h>
#include <clib/alib_stdio_protos.h>
#include "filereq.h"
#include "dos13.h"
#define BUTTON_HMARGIN 5
#define REQ_HMARGIN 10
#define REQ_VMARGIN 14
#define FILE_LIST_HMARGIN 5
#define FILE_LIST_VMARGIN 3
#define FILE_LIST_LINE_DIST 1
#define LIST_VSLIDER_WIDTH 11
#define LIST_BUTTON_WIDTH 11
#define LIST_BUTTON_HEIGHT 11
#define FILE_LIST_BM_MARGIN 1
#define NUM_FILE_ENTRIES 10
/*
this is the wait time between handling mouse drag
events of the vslider, 50ms will roughly result in
20 updates/redraws per second which is fairly smooth
*/
#define VSLIDER_UPDATE_MS 50
// *********************
// This is essentially the requester's state, should actually be a struct
static int filelist_width;
static int filelist_height;
static int filelist_bm_width;
static int filelist_bm_height;
static struct FileListEntry *current_files;
static int num_current_files;
static int slider_increment;
/*
* The first visible entry in the file list. Since the
* number of visible entries is fixed, we only need this one.
*/
static struct FileListEntry *first_visible_entry;
// *********************
enum { LABEL_DRAWER = 0, LABEL_FILE, LABEL_PARENT, LABEL_DRIVES, LABEL_OPEN, LABEL_CANCEL } Labels;
#define REQ_HEIGHT 175
#define REQWIN_HEIGHT (REQ_HEIGHT + 5)
#define TOPAZ_BASELINE 8
#define DRAWER_GADGET_X 60
#define DRAWER_GADGET_Y 106
#define FILE_GADGET_X DRAWER_GADGET_X
#define FILE_GADGET_Y (DRAWER_GADGET_Y + 17)
#define PATH_GADGET_WIDTH 160
#define PATH_GADGET_HEIGHT 10
#define STR_LABEL_XOFFSET -60
#define STR_LABEL_YOFFSET 2
#define BUTTON_Y (FILE_GADGET_Y + 18)
#define BUTTON_HEIGHT 18
#define BUTTON_TEXT_XOFFSET 5
#define BUTTON_TEXT_YOFFSET (TOPAZ_BASELINE - 3)
#define OK_BUTTON_X 0
#define OK_BUTTON_WIDTH 40
#define DRIVES_BUTTON_X 46
#define DRIVES_BUTTON_WIDTH 58
#define PARENT_BUTTON_X 110
#define PARENT_BUTTON_WIDTH 58
#define CANCEL_BUTTON_X 174
#define CANCEL_BUTTON_WIDTH 58
enum {
REQ_OK_BUTTON_ID = 101, REQ_DRIVES_BUTTON_ID, REQ_PARENT_BUTTON_ID,
REQ_CANCEL_BUTTON_ID, REQ_DIR_TEXT_ID, REQ_FILE_TEXT_ID, VSLIDER_ID,
LIST_UP_ID, LIST_DOWN_ID
} GadgetIDs;
// This requester's purpose is simply to block the parent window's input
static struct Requester block_requester;
static struct Requester requester;
static BOOL req_opened = FALSE;
static struct Window *req_window;
// if image data is in fast RAM, we see nothing !!!
static UWORD __chip up_imdata[] = { 65504, 32800, 32800, 32800, 33824, 36384, 39712, 32800,
32800, 32800, 65504 };
static struct Image up_image = { 0, 0, 11, 11, 1, up_imdata, 1, 0, NULL };
static UWORD __chip down_imdata[] = { 65504, 32800, 32800, 32800, 39712, 36384, 33824, 32800,
32800, 32800, 65504 };
static struct Image down_image = { 0, 0, 11, 11, 1, down_imdata, 1, 0, NULL };
static struct IntuiText labels[] = {
{1, 0, JAM2, STR_LABEL_XOFFSET, STR_LABEL_YOFFSET, NULL, "Drawer", NULL},
{1, 0, JAM2, STR_LABEL_XOFFSET, STR_LABEL_YOFFSET, NULL, "File", NULL},
{1, 0, JAM2, BUTTON_TEXT_XOFFSET, BUTTON_TEXT_YOFFSET, NULL, "Parent", NULL},
{1, 0, JAM2, BUTTON_TEXT_XOFFSET, BUTTON_TEXT_YOFFSET, NULL, "Drives", NULL},
{1, 0, JAM2, BUTTON_TEXT_XOFFSET, BUTTON_TEXT_YOFFSET, NULL, "Open", NULL},
{1, 0, JAM2, BUTTON_TEXT_XOFFSET, BUTTON_TEXT_YOFFSET, NULL, "Cancel", NULL}
};
static WORD ok_border_points[] = {0, 0, OK_BUTTON_WIDTH, 0, OK_BUTTON_WIDTH, BUTTON_HEIGHT, 0,
BUTTON_HEIGHT, 0, 0};
static WORD drives_border_points[] = {0, 0, DRIVES_BUTTON_WIDTH, 0, DRIVES_BUTTON_WIDTH,
BUTTON_HEIGHT, 0, BUTTON_HEIGHT, 0, 0};
static WORD cancel_border_points[] = {0, 0, CANCEL_BUTTON_WIDTH, 0, CANCEL_BUTTON_WIDTH,
BUTTON_HEIGHT, 0, BUTTON_HEIGHT, 0, 0};
static WORD list_border_points[10];
/* the -2 is the margin to set to avoid that the string gadget will overdraw the
borders */
static WORD string_border_points[] = {-2, -2, PATH_GADGET_WIDTH, -2, PATH_GADGET_WIDTH,
10, -2, 10, -2, -2};
static struct Border ok_button_border = {0, 0, 1, 0, JAM1, 5, ok_border_points, NULL};
static struct Border drives_button_border = {0, 0, 1, 0, JAM1, 5, cancel_border_points, NULL};
static struct Border parent_button_border = {0, 0, 1, 0, JAM1, 5, cancel_border_points, NULL};
static struct Border cancel_button_border = {0, 0, 1, 0, JAM1, 5, cancel_border_points, NULL};
static struct Border str_gadget_border = {0, 0, 1, 0, JAM1, 5, string_border_points, NULL};
static struct Border file_list_border = {0, 0, 1, 0, JAM1, 5, list_border_points, NULL};
#define DIRSTRING_SIZE 80
#define DIRBUFFER_SIZE (DIRSTRING_SIZE + 2)
static UBYTE buffer1[DIRBUFFER_SIZE], undobuffer1[DIRBUFFER_SIZE];
static struct StringInfo strinfo1 = {buffer1, undobuffer1, 0, DIRSTRING_SIZE, 0, 0, 0, 0, 0, 0,
NULL, 0, NULL};
static UBYTE buffer2[82], undobuffer2[82];
static struct StringInfo strinfo2 = {buffer2, undobuffer2, 0, 80, 0, 0, 0, 0, 0, 0, NULL, 0, NULL};
static struct Image slider_image;
static struct PropInfo propinfo = {AUTOKNOB | FREEVERT, 0, 0, MAXBODY, MAXBODY,
0, 0, 0, 0, 0, 0};
#define WIN_TITLE "Open File..."
static struct NewWindow newwin = {
0, 0, 0, REQWIN_HEIGHT, 0, 1,
IDCMP_GADGETUP | IDCMP_MOUSEBUTTONS | IDCMP_MOUSEMOVE,
WFLG_CLOSEGADGET | WFLG_ACTIVATE | WFLG_DRAGBAR | WFLG_DEPTHGADGET | WFLG_SIMPLE_REFRESH | WFLG_NOCAREREFRESH,
NULL, NULL, WIN_TITLE,
NULL, NULL,
0, REQWIN_HEIGHT,
0, REQWIN_HEIGHT,
WBENCHSCREEN
};
static struct Gadget list_down = {NULL, 0, 0,
LIST_BUTTON_WIDTH, LIST_BUTTON_HEIGHT,
GFLG_GADGHCOMP | GFLG_GADGIMAGE, GACT_RELVERIFY,
GTYP_BOOLGADGET | GTYP_REQGADGET,
&down_image, NULL,
NULL, 0, NULL,
LIST_DOWN_ID, NULL};
static struct Gadget list_up = {&list_down, 0, 0,
LIST_BUTTON_WIDTH, LIST_BUTTON_HEIGHT,
GFLG_GADGHCOMP | GFLG_GADGIMAGE, GACT_RELVERIFY,
GTYP_BOOLGADGET | GTYP_REQGADGET,
&up_image, NULL,
NULL, 0, NULL,
LIST_UP_ID, NULL};
static struct Gadget list_vslider = {&list_up, 0, 0, LIST_VSLIDER_WIDTH, 0,
GFLG_GADGHCOMP, GACT_RELVERIFY|GACT_FOLLOWMOUSE, GTYP_PROPGADGET,
&slider_image, NULL, NULL, 0, &propinfo,
VSLIDER_ID, NULL};
static struct Gadget file_text = {&list_vslider, FILE_GADGET_X, FILE_GADGET_Y,
PATH_GADGET_WIDTH, PATH_GADGET_HEIGHT,
GFLG_GADGHCOMP, GACT_RELVERIFY, GTYP_STRGADGET,
&str_gadget_border, NULL, &labels[LABEL_FILE], 0, &strinfo2,
REQ_FILE_TEXT_ID, NULL};
static struct Gadget dir_text = {&file_text, DRAWER_GADGET_X, DRAWER_GADGET_Y,
PATH_GADGET_WIDTH, PATH_GADGET_HEIGHT,
GFLG_GADGHCOMP, GACT_RELVERIFY, GTYP_STRGADGET,
&str_gadget_border,
NULL, &labels[LABEL_DRAWER], 0, &strinfo1,REQ_DIR_TEXT_ID, NULL};
// Note: Cancel does not specify the GACT_ENDGADGET flag, it seems that
// IDCMP_REQCLEAR is not fired when Intuition closes the requester automatically
static struct Gadget cancel_button = {&dir_text, CANCEL_BUTTON_X, BUTTON_Y, CANCEL_BUTTON_WIDTH,
BUTTON_HEIGHT, GFLG_GADGHCOMP, GACT_RELVERIFY,
GTYP_BOOLGADGET | GTYP_REQGADGET, &cancel_button_border, NULL,
&labels[LABEL_CANCEL], 0, NULL, REQ_CANCEL_BUTTON_ID, NULL};
static struct Gadget parent_button = {&cancel_button, PARENT_BUTTON_X, BUTTON_Y,
PARENT_BUTTON_WIDTH, BUTTON_HEIGHT,
GFLG_GADGHCOMP | GFLG_DISABLED, GACT_RELVERIFY,
GTYP_BOOLGADGET | GTYP_REQGADGET,
&parent_button_border, NULL,
&labels[LABEL_PARENT], 0, NULL,
REQ_PARENT_BUTTON_ID, NULL};
static struct Gadget drives_button = {&parent_button, DRIVES_BUTTON_X, BUTTON_Y,
DRIVES_BUTTON_WIDTH, BUTTON_HEIGHT,
GFLG_GADGHCOMP, GACT_RELVERIFY,
GTYP_BOOLGADGET | GTYP_REQGADGET,
&drives_button_border, NULL,
&labels[LABEL_DRIVES], 0, NULL,
REQ_DRIVES_BUTTON_ID, NULL};
static struct Gadget ok_button = {&drives_button, OK_BUTTON_X, BUTTON_Y,
OK_BUTTON_WIDTH, BUTTON_HEIGHT,
GFLG_GADGHCOMP, GACT_RELVERIFY,
GTYP_BOOLGADGET | GTYP_REQGADGET,
&ok_button_border, NULL,
&labels[LABEL_OPEN], 0, NULL,
REQ_OK_BUTTON_ID, NULL};
static int filelist_bm_depth = 1;
static struct BitMap filelist_bitmap;
static struct RastPort filelist_rastport;
static UWORD font_baseline, font_height;
#define DIR_BUFFER_SIZE 300
static char dir_buffer[DIR_BUFFER_SIZE];
static void close_requester()
{
if (req_opened) {
EndRequest(&requester, req_window);
req_opened = FALSE;
}
}
// for a window coordinate, return the visual index in the file list
int file_list_index(int mx, int my) {
int x1 = REQ_HMARGIN;
int y1 = REQ_VMARGIN + FILE_LIST_VMARGIN + FILE_LIST_BM_MARGIN;
int x2 = x1 + filelist_width;
int y2 = y1 + filelist_height;
if (mx >= x1 && mx <= x2 && my >= y1 && my <= y2) {
int rely = my - y1;
int index = rely / (font_height + FILE_LIST_LINE_DIST);
// printf("rely: %d, new sel index: %d\n", rely, index);
return index < NUM_FILE_ENTRIES ? index : -1;
}
return -1;
}
// map file list index to index in the file list
struct FileListEntry *entry_at_list_index(int index)
{
if (index < 0) return NULL;
struct FileListEntry *cur = first_visible_entry;
int count = 0;
while (cur && count < index) {
cur = cur->next;
count++;
}
return cur;
}
int vertpot2entry(int vertpot)
{
int index = vertpot / slider_increment, final_index = index;
if (index < 0 || num_current_files < NUM_FILE_ENTRIES) final_index = 0;
else if ((num_current_files - index) < NUM_FILE_ENTRIES) {
final_index = num_current_files - NUM_FILE_ENTRIES;
}
//printf("computed index: %d, final index: %d\n", index, final_index);
return final_index;
}
static void render_list_backbuffer()
{
LockLayer(0L, requester.ReqLayer);
ClipBlit(&filelist_rastport, 0, 0, requester.ReqLayer->rp,
FILE_LIST_BM_MARGIN, FILE_LIST_BM_MARGIN, filelist_bm_width, filelist_bm_height,
0xc0);
UnlockLayer(requester.ReqLayer);
}
static void draw_selection(struct RastPort *src_rp, int view_index)
{
// Draw selection rectangle
SetDrMd(src_rp, COMPLEMENT);
int y1 = FILE_LIST_VMARGIN + view_index * (font_height + FILE_LIST_LINE_DIST) - FILE_LIST_BM_MARGIN;
int y2 = y1 + font_height;
RectFill(src_rp, 0, y1, filelist_bm_width, y2);
}
static void clear_list()
{
for (int i = 0; i < filelist_bm_depth; i++) {
BltClear(filelist_bitmap.Planes[i],
RASSIZE(filelist_width, filelist_height), 1);
}
}
static void clear_selections()
{
struct FileListEntry *cur = current_files;
while (cur) {
cur->selected = 0;
cur = cur->next;
}
}
/*
* Render the currently visible portion of the current file list.
* We can simply clear the whole thing and render the visible
* entries.
*/
static void draw_list()
{
// Note that we need to render into the requester
// layer's rastport, because it is rendered on top of the
// parent window and obscures the content
struct RastPort *src_rp = &filelist_rastport;
// make sure drawing is clipped, otherwise it will
// draw somewhere else into memory
SetAPen(src_rp, 1);
int ypos = FILE_LIST_VMARGIN + font_baseline;
struct FileListEntry *cur = first_visible_entry;
int count = 0;
while (cur && count < NUM_FILE_ENTRIES) {
Move(src_rp, 8, ypos);
Text(src_rp, cur->name, strlen(cur->name));
ypos += font_height + FILE_LIST_LINE_DIST;
if (cur->selected) draw_selection(src_rp, count);
cur = cur->next;
count++;
}
// Done drawing, offscreen bitmap is rendered, copy to the requester's layer
render_list_backbuffer();
}
static void update_list(int new_first_index)
{
struct FileListEntry *cur = first_visible_entry;
int current_index = cur->index;
if (new_first_index < current_index) {
while (cur->index > new_first_index) cur = cur->prev;
} else if (new_first_index > current_index) {
while (cur->index < new_first_index) cur = cur->next;
}
first_visible_entry = cur;
clear_list();
draw_list();
}
static void update_string_gadgets(struct FileListEntry *entry)
{
// set the name to the gadget and refresh
UWORD oldpos = RemoveGList(req_window, &dir_text, 1);
strncpy(buffer1, entry->name, DIRBUFFER_SIZE);
AddGList(req_window, &dir_text, oldpos, 1, &requester);
RefreshGList(&dir_text, req_window, &requester, 1);
}
static void reload_file_list(const char *dirpath)
{
int num_files;
struct FileListEntry *dir_entries = scan_dir(dirpath, &num_files);
dir_entries = sort_file_list(dir_entries, TRUE);
if (current_files) free_file_list(current_files);
current_files = dir_entries;
num_current_files = num_files;
first_visible_entry = current_files;
clear_list();
draw_list();
// set the length of the slider thumb according to the current file list
int vertbody = MAXBODY;
int vertpot = MAXBODY;
if (num_current_files > NUM_FILE_ENTRIES) {
// because we can only use integer division, so we have to determine
// the body size by solving the equation
// MAXBODY / vertbody = num_current_files / NUM_FILE_ENTRIES
vertbody = (MAXBODY * NUM_FILE_ENTRIES) / num_current_files;
// this is surprisingly different that I thought:
// we need to compute the increment over the drag space not over
// the vslider space, so we can ignore the VertBody setting (in short
// VertPot and VertBody are independent)
slider_increment = MAXBODY / (num_current_files - NUM_FILE_ENTRIES);
vertpot = first_visible_entry->index * slider_increment;
printf("vpot: %d, vbody: %d inc: %d\n", vertpot, vertbody, slider_increment);
}
NewModifyProp(&list_vslider, req_window, &requester, AUTOKNOB | FREEVERT,
0, vertpot, MAXBODY, vertbody, 1);
// Depending on which directory we are in, the Parent gadget can be either
// enabled or disabled.
// Unfortunately, the OnGadget()/OffGadget() does not render the gadget
// correctly (only the label is), so we need to do it the hard way.
UWORD oldpos = RemoveGList(req_window, &parent_button, 1);
SetAPen(requester.ReqLayer->rp, 0);
RectFill(requester.ReqLayer->rp, parent_button.LeftEdge, parent_button.TopEdge,
parent_button.LeftEdge + parent_button.Width,
parent_button.TopEdge + parent_button.Height);
if (dirpath) parent_button.Flags &= ~GFLG_DISABLED;
else parent_button.Flags |= GFLG_DISABLED;
AddGList(req_window, &parent_button, oldpos, 1, &requester);
RefreshGList(&parent_button, req_window, &requester, 1);
}
static void handle_events()
{
BOOL done = FALSE;
struct IntuiMessage *msg;
ULONG msgClass;
UWORD menuCode;
int buttonId;
ULONG last_scroll_seconds = 0, last_scroll_micros = 0, scroll_seconds, scroll_micros;
ULONG start_click_secs = 0, start_click_micros = 0, click_secs, click_micros;
int idx;
while (!done) {
Wait(1 << req_window->UserPort->mp_SigBit);
// since we expect mouse move operations, we need to process all events until
// the message queue is empty, otherwise we'll get funny effects by processing
// the queued up mouse move events when we actually were notified about a different
// event
while (msg = (struct IntuiMessage *) GetMsg(req_window->UserPort)) {
msgClass = msg->Class;
switch (msgClass) {
case IDCMP_MOUSEMOVE:
if (last_scroll_seconds == 0) {
CurrentTime(&last_scroll_seconds, &last_scroll_micros);
} else {
CurrentTime(&scroll_seconds, &scroll_micros);
ULONG diff = (scroll_seconds - last_scroll_seconds) * 1000 +
(scroll_micros - last_scroll_micros) / 1000;
if (diff > VSLIDER_UPDATE_MS) {
// update the list, but ignore most of the move events,
// otherwise the we need to process too many events and
// refresh too often
idx = vertpot2entry(propinfo.VertPot);
last_scroll_seconds = scroll_seconds;
last_scroll_micros = scroll_micros;
update_list(idx);
}
}
ReplyMsg((struct Message *) msg);
break;
case IDCMP_MOUSEBUTTONS:
if (msg->Code == SELECTUP) {
BOOL is_doubleclick = FALSE;
// map to virtual file list indexes, only select if not already selected
CurrentTime(&click_secs, &click_micros);
if (start_click_secs == 0) {
start_click_secs = click_secs;
start_click_micros = click_micros;
} else {
is_doubleclick = DoubleClick(start_click_secs, start_click_micros,
click_secs, click_micros);
start_click_secs = start_click_micros = 0;
}
struct FileListEntry *entry = entry_at_list_index(file_list_index(msg->MouseX,
msg->MouseY));
if (entry != NULL && !entry->selected) {
clear_selections();
//printf("select '%s', index: %d\n", entry->name, (int) entry->index);
entry->selected = 1;
clear_list();
draw_list();
update_string_gadgets(entry);
} else if (entry != NULL && is_doubleclick) {
printf("double click on: %s\n", entry->name);
if (entry->file_type == FILETYPE_VOLUME) {
strncpy(dir_buffer, entry->name, DIR_BUFFER_SIZE);
reload_file_list(dir_buffer);
} else if (entry->file_type == FILETYPE_DIR) {
printf("DIR_BUFFER was: '%s'\n", dir_buffer);
int dblen = strlen(dir_buffer);
// We have to implement the DOS functions AddPart()/PathPart()/FilePart()
// ourselves on 1.x, because they only exist after 2.x
// TODO: maybe put path operations in their own module so
// unit testing becomes possible
// append directory separator to path if not a volume
if (dir_buffer[dblen - 1] != ':' && dblen < DIR_BUFFER_SIZE) {
dir_buffer[dblen] = '/';
dir_buffer[dblen + 1] = '\0';
dblen++;
}
strncat(dir_buffer, entry->name, DIR_BUFFER_SIZE - dblen);
printf("DIR_BUFFER is NOW: '%s'\n", dir_buffer);
reload_file_list(dir_buffer);
}
}
}
ReplyMsg((struct Message *) msg);
break;
case IDCMP_GADGETUP:
buttonId = (int) ((struct Gadget *) (msg->IAddress))->GadgetID;
ReplyMsg((struct Message *) msg);
switch (buttonId) {
case REQ_OK_BUTTON_ID:
close_requester();
done = TRUE;
break;
case REQ_CANCEL_BUTTON_ID:
close_requester();
done = TRUE;
break;
case REQ_DRIVES_BUTTON_ID:
dir_buffer[0] = '\0';
reload_file_list(NULL);
break;
case REQ_PARENT_BUTTON_ID:
// TODO
break;
case LIST_UP_ID:
{
int newpot = propinfo.VertPot - slider_increment;
if (newpot < 0) newpot = 0;
NewModifyProp(&list_vslider, req_window, &requester, AUTOKNOB | FREEVERT,
0, newpot, MAXBODY, propinfo.VertBody, 1);
int idx = vertpot2entry(newpot);
update_list(idx);
}
break;
case LIST_DOWN_ID:
{
int newpot = propinfo.VertPot + slider_increment;
if (newpot > MAXBODY) newpot = MAXBODY;
NewModifyProp(&list_vslider, req_window, &requester, AUTOKNOB | FREEVERT,
0, newpot, MAXBODY, propinfo.VertBody, 1);
int idx = vertpot2entry(newpot);
update_list(idx);
}
break;
case VSLIDER_ID:
// determine the portion to be displayed
idx = vertpot2entry(propinfo.VertPot);
//printf("gadget up, vslider, vertpot: %d, incr: %d, idx: %d\n",
// (int) propinfo.VertPot, slider_increment, idx);
last_scroll_seconds = last_scroll_micros = 0;
update_list(idx);
break;
default:
break;
}
break;
default:
break;
}
}
}
}
static void cleanup()
{
for (int i = 0; i < filelist_bm_depth; i++) {
if (filelist_bitmap.Planes[i]) FreeRaster(filelist_bitmap.Planes[i],
filelist_width,
filelist_height);
}
}
/* Initialize the requester window and gadget sizes according to the current font and
screen resolutions. The window parameter is used to determine the font and the parent
window position.
*/
void init_sizes(struct Window *window, struct Requester *requester)
{
int scrw = window->WScreen->Width;
int scrh = window->WScreen->Height;
// Determine the requester's dimensions
filelist_bm_width = TextLength(window->RPort, "WWWWWWWWWWWWWWWWWWWWWWWWWWWWWW", 30) + 10;
filelist_width = filelist_bm_width + 2;
struct TextFont *font = window->IFont;
font_height = font->tf_YSize;
font_baseline = font->tf_Baseline;
filelist_bm_height = font_height * NUM_FILE_ENTRIES + 2 * FILE_LIST_VMARGIN +
(NUM_FILE_ENTRIES - 1) * FILE_LIST_LINE_DIST;
filelist_height = filelist_bm_height + (FILE_LIST_BM_MARGIN * 2);
// controls at the right of the list
int filelist_vslider_height = filelist_height - 2 * LIST_BUTTON_HEIGHT + 1;
int list_up_y = filelist_vslider_height;
int list_down_y = list_up_y + LIST_BUTTON_HEIGHT;
list_vslider.Height = filelist_vslider_height;
list_up.TopEdge = list_up_y;
list_down.TopEdge = list_down_y;
printf("Font ysize: %d, list height: %d\n", (int) font_height, filelist_height);
int buttonbar_width = TextLength(window->RPort, "OpenDrivesParentCancel", 22)
+ (BUTTON_HMARGIN * 2 * 4);
int req_width = filelist_width > buttonbar_width ? filelist_width : buttonbar_width;
printf("filelist width: %d, button bar width: %d, req_width: %d\n", filelist_width,
buttonbar_width, req_width);
req_width += LIST_VSLIDER_WIDTH;
newwin.MinWidth = newwin.MaxWidth = newwin.Width = req_width + 2 * REQ_HMARGIN;
// position the requester relative to the parent window
// TODO: respect screen size
newwin.LeftEdge = window->LeftEdge + 10;
newwin.TopEdge = window->TopEdge + 10;
// adjust border
list_border_points[2] = filelist_width;
list_border_points[4] = filelist_width;
list_border_points[5] = filelist_height;
list_border_points[7] = filelist_height;
// adjust gadgets
list_down.LeftEdge = filelist_width;
list_up.LeftEdge = filelist_width;
list_vslider.LeftEdge = filelist_width;
requester->Width = req_width;
requester->LeftEdge = REQ_HMARGIN;
requester->TopEdge = REQ_VMARGIN;
requester->Height = REQ_HEIGHT;
requester->Flags = SIMPLEREQ | NOREQBACKFILL | NOISYREQ;
requester->BackFill = 0;
requester->ReqGadget = &ok_button;
requester->ReqBorder = &file_list_border;
requester->ReqText = NULL;
}
static void open_request_window(struct Window *window)
{
InitRequester(&requester);
init_sizes(window, &requester);
if (req_window = OpenWindow(&newwin)) {
InitBitMap(&filelist_bitmap, filelist_bm_depth, filelist_bm_width, filelist_bm_height);
for (int i = 0; i < filelist_bm_depth; i++) filelist_bitmap.Planes[i] = NULL;
for (int i = 0; i < filelist_bm_depth; i++) {
if (!(filelist_bitmap.Planes[i] = AllocRaster(filelist_width, filelist_height))) {
cleanup();
return;
} else {
clear_list();
}
}
InitRastPort(&filelist_rastport);
filelist_rastport.BitMap = &filelist_bitmap;
if (req_opened = Request(&requester, req_window)) {
dir_buffer[0] = '\0';
reload_file_list(NULL);
handle_events();
free_file_list(current_files);
current_files = first_visible_entry = NULL;
CloseWindow(req_window);
req_window = NULL;
} else {
puts("Request() failed !!!");
}
cleanup();
} else {
puts("OpenWindow() failed !!!");
}
}
void open_file(struct Window *window)
{
InitRequester(&block_requester);
// note that the Request() call fails, when everything is set to 0,
// contrary to the docs.
block_requester.Width = 1;
block_requester.Height = 1;
block_requester.LeftEdge = REQ_HMARGIN;
block_requester.TopEdge = REQ_VMARGIN;
if (Request(&block_requester, window)) {
printf("top request opened\n");
open_request_window(window);
EndRequest(&block_requester, window);
} else {
printf("top request failed\n");
}
}
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