some more list work
This commit is contained in:
Joel Bodenmann
parent
984e14efb7
commit
40611e264d
@ -57,6 +57,24 @@ GHandle gwinListCreate(GListObject *widget, GWidgetInit *pInit);
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int gwinListAddItem(GHandle gh, const char* item, bool_t useAlloc);
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char* gwinListItemGetText(GHandle gh, int item);
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int gwinListFindText(GHandle gh, const char* text);
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void gwinListItemSetParam(GHandle gh, int item, uint16_t param);
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uint16_t gwinListItemGetParam(GHandle gh, int item);
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void nListDeleteAll(GHandle gh);
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void gwinListItemDelete(GHandle gh, int item);
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int gwinListItemCount(GHandle gh);
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bool_t gwinListItemIsSelected(GHandle gh, int item);
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int gwinListGetSelected(GHandle gh);
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#ifdef __cplusplus
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}
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#endif
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177
src/gwin/list.c
177
src/gwin/list.c
@ -22,6 +22,8 @@
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#include "gwin/class_gwin.h"
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#include <string.h>
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#define BORDER 3
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#define widget(gh) ((GListObject *)gh)
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#define GLIST_FLG_MULTISELECT (GWIN_FIRST_CONTROL_FLAG << 0)
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@ -42,7 +44,6 @@ typedef struct ListItem {
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uint16_t flags;
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#define LISTITEM_ALLOCEDTEXT 0x0001
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#define LISTITEM_SELECTED 0x0002
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uint16_t param; // A parameter the user can specify himself
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const char* text;
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#if GWIN_LIST_IMAGES
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@ -77,17 +78,18 @@ static void gwinListDefaultDraw(GWidgetObject* gw, void* param) {
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(void)param;
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uint16_t i, fheight;
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const gfxQueueASyncItem* qi;
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gfxQueueASyncItem* qi;
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const GColorSet* pcol;
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fheight = gdispGetFontMetric(gwinGetDefaultFont(), fontHeight);
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gdispDrawBox(gw->g.x, gw->g.y, gw->g.width, gw->g.height, Black);
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for (qi = gfxQueueASyncPeek(&gcw->list_head), i = 0; qi; qi = gfxQueueASyncNext(qi), i += fheight + 4) {
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for (qi = gfxQueueASyncPeek(&gcw->list_head), i = 0; qi; qi = gfxQueueASyncNext(qi), i += fheight + 2*BORDER) {
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if (((ListItem*)qi)->flags & GLIST_FLG_SELECTED)
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gdispFillStringBox(gw->g.x + 3, gw->g.y + 3 + i, gw->g.width - 6, fheight, ((ListItem*)qi)->text, gwinGetDefaultFont(), White, Black, justifyLeft);
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gdispFillStringBox(gw->g.x + BORDER, gw->g.y + BORDER + i, gw->g.width - 2*BORDER, fheight, ((ListItem*)qi)->text, gwinGetDefaultFont(), White, Black, justifyLeft);
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else
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gdispFillStringBox(gw->g.x + 3, gw->g.y + 3 + i, gw->g.width - 6, fheight, ((ListItem*)qi)->text, gwinGetDefaultFont(), Black, White, justifyLeft);
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gdispFillStringBox(gw->g.x + BORDER, gw->g.y + BORDER + i, gw->g.width - 2*BORDER, fheight, ((ListItem*)qi)->text, gwinGetDefaultFont(), Black, White, justifyLeft);
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}
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#undef gcw
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@ -101,9 +103,9 @@ static void gwinListDefaultDraw(GWidgetObject* gw, void* param) {
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(void) x;
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uint16_t i, item_id, item_height;
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const gfxQueueASyncItem* qi;
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gfxQueueASyncItem* qi;
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item_height = gdispGetFontMetric(gwinGetDefaultFont(), fontHeight) + 2;
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item_height = gdispGetFontMetric(gwinGetDefaultFont(), fontHeight) + 2*BORDER;
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item_id = (y - gw->g.y) / item_height;
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@ -115,6 +117,11 @@ static void gwinListDefaultDraw(GWidgetObject* gw, void* param) {
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}
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_gwidgetRedraw((GHandle)gw);
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// Do not generate an event if an empty section of the list has has been selected
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if (item_id < 0 || item_id > gcw->cnt - 1)
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return;
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sendListEvent(gw, item_id);
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#undef gcw
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@ -123,10 +130,11 @@ static void gwinListDefaultDraw(GWidgetObject* gw, void* param) {
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#endif
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static void _destroy(GHandle gh) {
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const gfxQueueASyncItem* qi;
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gfxQueueASyncItem* qi;
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while((qi = gfxQueueASyncGet(&((GListObject *)gh)->list_head)))
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gfxFree((void *)qi);
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_gwidgetDestroy(gh);
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}
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@ -134,7 +142,7 @@ static const gwidgetVMT listVMT = {
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{
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"List", // The class name
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sizeof(GListObject), // The object size
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_destroy, // The destroy routine
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_destroy, // The destroy routine
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_gwidgetRedraw, // The redraw routine
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0, // The after-clear routine
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},
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@ -203,13 +211,58 @@ int gwinListAddItem(GHandle gh, const char* item_name, bool_t useAlloc) {
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// increment the total amount of entries in the list widget
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widget(gh)->cnt++;
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// return the position in the list (-1 because we start with index 0)
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return widget(gh)->cnt-1;
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}
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char* gwinListItemGetText(GHandle gh, int item) {
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gfxQueueASyncItem* qi;
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uint16_t i;
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// is it a valid handle?
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if (gh->vmt != (gwinVMT *)&listVMT)
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return 0;
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// watch out for an invalid item
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if (item < 0 || item > (widget(gh)->cnt) - 1)
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return 0;
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qi = gfxQueueASyncPeek(&widget(gh)->list_head);
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for (i = 0; i < item; i++) {
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qi = gfxQueueASyncNext(qi);
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}
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return ((ListItem*)qi)->text;
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}
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int gwinListFindText(GHandle gh, const char* text) {
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gfxQueueASyncItem* qi;
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uint16_t i;
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// is it a valid handle?
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if (gh->vmt != (gwinVMT *)&listVMT)
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return -1;
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// watch out for NULL pointers
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if (!text)
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return -1;
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qi = gfxQueueASyncPeek(&widget(gh)->list_head);
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for(qi = gfxQueueASyncPeek(&widget(gh)->list_head), i = 0; qi; qi = gfxQueueASyncNext(qi), i++) {
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if (strcmp(((ListItem *)qi)->text, text) == 0)
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return i;
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}
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return -1;
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}
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int gwinListGetSelected(GHandle gh) {
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const gfxQueueASyncItem *qi;
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gfxQueueASyncItem *qi;
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int i;
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// is it a valid handle?
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if (gh->vmt != (gwinVMT *)&listVMT)
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return -1;
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@ -221,6 +274,110 @@ int gwinListGetSelected(GHandle gh) {
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return -1;
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}
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void gwinListItemSetParam(GHandle gh, int item, uint16_t param) {
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gfxQueueASyncItem* qi;
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uint16_t i;
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// is it a valid handle?
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if (gh->vmt != (gwinVMT *)&listVMT)
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return;
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// watch out for an invalid item
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if (item < 0 || item > (widget(gh)->cnt) - 1)
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return;
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qi = gfxQueueASyncPeek(&widget(gh)->list_head);
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for (i = 0; i < item; i++) {
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((ListItem*)qi)->param = param;
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}
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return;
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}
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void gwinListDeleteAll(GHandle gh) {
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gfxQueueASyncItem* qi;
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while((qi = gfxQueueASyncGet(&((GListObject *)gh)->list_head)))
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gfxFree((void *)qi);
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}
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void gwinListItemDelete(GHandle gh, int item) {
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gfxQueueASyncItem* qi;
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uint16_t i;
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// is it a valid handle?
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if (gh->vmt != (gwinVMT *)&listVMT)
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return;
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// watch out for an invalid item
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if (item < 0 || item > (widget(gh)->cnt) - 1)
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return;
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qi = gfxQueueASyncPeek(&widget(gh)->list_head);
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// get our item pointer
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for (i = 0; i < item; i++) {
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qi = gfxQueueASyncNext(qi);
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}
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gfxQueueASyncRemove(&widget(gh)->list_head, qi);
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gfxFree((void*)qi);
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}
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uint16_t gwinListItemGetParam(GHandle gh, int item) {
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gfxQueueASyncItem* qi;
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uint16_t i;
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// is it a valid handle?
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if (gh->vmt != (gwinVMT *)&listVMT)
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return 0;
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// watch out for an invalid item
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if (item < 0 || item > (widget(gh)->cnt) - 1)
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return 0;
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qi = gfxQueueASyncPeek(&widget(gh)->list_head);
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for (i = 0; i < item; i++) {
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qi = gfxQueueASyncNext(qi);
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}
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return ((ListItem*)qi)->param;
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}
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bool_t gwinListItemIsSelected(GHandle gh, int item) {
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gfxQueueASyncItem* qi;
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uint16_t i;
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// is it a valid handle?
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if (gh->vmt != (gwinVMT *)&listVMT)
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return FALSE;
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// watch out for an invalid item
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if (item < 0 || item > (widget(gh)->cnt) - 1)
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return FALSE;
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qi = gfxQueueASyncPeek(&widget(gh)->list_head);
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for (i = 0; i < item; i++) {
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qi = gfxQueueASyncNext(qi);
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}
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if (((ListItem*)qi)->flags & GLIST_FLG_SELECTED)
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return TRUE;
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else
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return FALSE;
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}
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int gwinListItemCount(GHandle gh) {
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// is it a valid handle?
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if (gh->vmt != (gwinVMT *)&listVMT)
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return 0;
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return widget(gh)->cnt;
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}
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#endif // GFX_USE_GWIN && GWIN_NEED_LIST
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/** @} */
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