535 lines
14 KiB
C
535 lines
14 KiB
C
/*
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*********************************************************************************************************
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* uC/GUI
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* Universal graphic software for embedded applications
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*
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* (c) Copyright 2002, Micrium Inc., Weston, FL
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* (c) Copyright 2002, SEGGER Microcontroller Systeme GmbH
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*
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* µC/GUI is protected by international copyright laws. Knowledge of the
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* source code may not be used to write a similar product. This file may
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* only be used in accordance with a license and should not be redistributed
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* in any way. We appreciate your understanding and fairness.
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*
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----------------------------------------------------------------------
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File : SLIDER.c
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Purpose : Implementation of slider widget
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---------------------------END-OF-HEADER------------------------------
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*/
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#include <stdlib.h>
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#include <string.h>
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#include "GUI_Protected.h"
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#include "SLIDER.h"
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#include "WIDGET.h"
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#if GUI_WINSUPPORT
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/*********************************************************************
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*
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* Private config defaults
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*
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**********************************************************************
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*/
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#ifndef SLIDER_SUPPORT_TRANSPARENCY
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#define SLIDER_SUPPORT_TRANSPARENCY WM_SUPPORT_TRANSPARENCY
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#endif
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/* Support for 3D effects */
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#ifndef SLIDER_USE_3D
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#define SLIDER_USE_3D 1
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#endif
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/* Define colors */
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#ifndef SLIDER_BKCOLOR0_DEFAULT
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#define SLIDER_BKCOLOR0_DEFAULT 0xc0c0c0
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#endif
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#ifndef SLIDER_BKCOLOR1_DEFAULT
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#define SLIDER_BKCOLOR1_DEFAULT GUI_WHITE
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#endif
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#ifndef SLIDER_COLOR0_DEFAULT
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#define SLIDER_COLOR0_DEFAULT 0xc0c0c0
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#endif
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#ifndef SLIDER_COLOR1_DEFAULT
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#define SLIDER_COLOR1_DEFAULT GUI_BLACK
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#endif
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/*********************************************************************
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*
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* Object definition
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*
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**********************************************************************
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*/
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typedef struct {
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WIDGET Widget;
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GUI_COLOR aBkColor[2];
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GUI_COLOR aColor[2];
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int Min, Max, v;
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int Flags;
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int NumTicks;
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I16 Width;
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#if GUI_DEBUG_LEVEL >1
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int DebugId;
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#endif
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} SLIDER_Obj;
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/*********************************************************************
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*
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* Macros for internal use
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*
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**********************************************************************
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*/
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#define SLIDER_ID 0x4544 /* Magic numer, should be unique if possible */
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#define SLIDER_H2P(h) (SLIDER_Obj*) GUI_ALLOC_h2p(h)
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#if GUI_DEBUG_LEVEL > 1
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#define SLIDER_ASSERT_IS_VALID_PTR(p) DEBUG_ERROROUT_IF(p->DebugId != SLIDER_ID, "SLIDER.c: Wrong handle type or Object not init'ed")
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#define SLIDER_INIT_ID(p) p->DebugId = SLIDER_ID
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#define SLIDER_DEINIT_ID(p) p->DebugId = SLIDER_ID+1
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#else
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#define SLIDER_ASSERT_IS_VALID_PTR(p)
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#define SLIDER_INIT_ID(p)
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#define SLIDER_DEINIT_ID(p)
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#endif
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/*********************************************************************
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*
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* Static data
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*
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**********************************************************************
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*/
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static GUI_COLOR _DefaultBkColor = SLIDER_BKCOLOR0_DEFAULT;
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/*********************************************************************
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*
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* Static routines
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*
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**********************************************************************
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*/
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/*********************************************************************
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*
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* _Paint
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*/
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static void _Paint(SLIDER_Obj* pObj, WM_HWIN hObj) {
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GUI_RECT r, rFocus, rSlider, rSlot;
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int x0, xsize, i, Range, NumTicks;
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WIDGET__GetClientRect(&pObj->Widget, &rFocus);
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GUI__ReduceRect(&r, &rFocus, 1);
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NumTicks = pObj->NumTicks;
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xsize = r.x1 - r.x0 + 1 - pObj->Width;
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x0 = r.x0 + pObj->Width / 2;
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Range = pObj->Max - pObj->Min;
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if (Range == 0) {
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Range = 1;
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}
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/* Fill with parents background color */
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#if !SLIDER_SUPPORT_TRANSPARENCY /* Not needed any more, since window is transparent*/
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if (pObj->aBkColor[0] == GUI_INVALID_COLOR) {
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LCD_SetBkColor(WIDGET__GetBkColor(hObj));
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} else {
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LCD_SetBkColor(pObj->aBkColor[0]);
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}
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GUI_Clear();
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#else
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if (!WM_GetHasTrans(hObj)) {
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LCD_SetBkColor(pObj->aBkColor[0]);
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GUI_Clear();
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}
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#endif
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/* Calculate Slider position */
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rSlider = r;
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rSlider.y0 = 5;
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rSlider.x0 = x0 + (U32)xsize * (U32)(pObj->v - pObj->Min) / Range - pObj->Width / 2;
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rSlider.x1 = rSlider.x0 + pObj->Width;
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/* Calculate Slot position */
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rSlot.x0 = x0;
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rSlot.x1 = x0 + xsize;
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rSlot.y0 = (rSlider.y0 + rSlider.y1) / 2 - 1;
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rSlot.y1 = rSlot.y0 + 3;
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WIDGET__EFFECT_DrawDownRect(&pObj->Widget, &rSlot); /* Draw slot */
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/* Draw the ticks */
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if (NumTicks < 0) {
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NumTicks = Range + 1;
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if (NumTicks > (xsize / 5)) {
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NumTicks = 11;
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}
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}
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if (NumTicks > 1) {
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LCD_SetColor(GUI_BLACK);
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for (i = 0; i < NumTicks; i++) {
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int x = x0 + xsize * i / (NumTicks - 1);
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WIDGET__DrawVLine(&pObj->Widget, x, 1, 3);
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}
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}
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/* Draw the slider itself */
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LCD_SetColor(pObj->aColor[0]);
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WIDGET__FillRectEx(&pObj->Widget, &rSlider);
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LCD_SetColor(GUI_BLACK);
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WIDGET__EFFECT_DrawUpRect(&pObj->Widget, &rSlider);
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/* Draw focus */
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if (pObj->Widget.State & WIDGET_STATE_FOCUS) {
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LCD_SetColor(GUI_BLACK);
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WIDGET__DrawFocusRect(&pObj->Widget, &rFocus, 0);
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}
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}
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/*********************************************************************
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*
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* _SliderPressed
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*/
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static void _SliderPressed(SLIDER_Handle hObj, SLIDER_Obj* pObj) {
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WIDGET_OrState(hObj, SLIDER_STATE_PRESSED);
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if (pObj->Widget.Win.Status & WM_SF_ISVIS) {
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WM_NotifyParent(hObj, WM_NOTIFICATION_CLICKED);
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}
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}
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/*********************************************************************
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*
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* _SliderReleased
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*/
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static void _SliderReleased(SLIDER_Handle hObj, SLIDER_Obj* pObj) {
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WIDGET_AndState(hObj, SLIDER_STATE_PRESSED);
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if (pObj->Widget.Win.Status & WM_SF_ISVIS) {
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WM_NotifyParent(hObj, WM_NOTIFICATION_RELEASED);
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}
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}
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/*********************************************************************
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*
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* _OnTouch
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*/
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static void _OnTouch(SLIDER_Handle hObj, SLIDER_Obj* pObj, WM_MESSAGE*pMsg) {
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const GUI_PID_STATE* pState = (const GUI_PID_STATE*)pMsg->Data.p;
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if (pMsg->Data.p) { /* Something happened in our area (pressed or released) */
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if (pState->Pressed) {
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int x0, xsize, x, Sel, Range;
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Range = (pObj->Max - pObj->Min);
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x0 = 1 + pObj->Width / 2; /* 1 pixel focus rectangle + width of actual slider */
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x = (pObj->Widget.State & WIDGET_STATE_VERTICAL) ? pState->y : pState->x;
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x -= x0;
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xsize = WIDGET__GetWindowSizeX(hObj) - 2 * x0;
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if (x <= 0) {
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Sel = pObj->Min;
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} else if (x >= xsize) {
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Sel = pObj->Max;
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} else {
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int Div;
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Div = xsize ? xsize : 1; /* Make sure we do not divide by 0, even though xsize should never be 0 in this case anyhow */
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Sel = pObj->Min + ((U32)Range * (U32)x + Div / 2) / Div;
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}
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if (WM_IsFocussable(hObj)) {
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WM_SetFocus(hObj);
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}
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WM_SetCapture(hObj, 1);
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SLIDER_SetValue(hObj, Sel);
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if ((pObj->Widget.State & SLIDER_STATE_PRESSED) == 0){
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_SliderPressed(hObj, pObj);
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}
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} else {
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/* React only if button was pressed before ... avoid problems with moving / hiding windows above (such as dropdown) */
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if (pObj->Widget.State & SLIDER_STATE_PRESSED) {
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_SliderReleased(hObj, pObj);
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}
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}
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}
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}
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/*********************************************************************
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*
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* _OnKey
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*/
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static void _OnKey(SLIDER_Handle hObj, WM_MESSAGE*pMsg) {
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const WM_KEY_INFO* pKeyInfo;
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int Key;
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pKeyInfo = (const WM_KEY_INFO*)(pMsg->Data.p);
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Key = pKeyInfo->Key;
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if (pKeyInfo->PressedCnt > 0) {
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switch (Key) {
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case GUI_KEY_RIGHT:
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SLIDER_Inc(hObj);
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break; /* Send to parent by not doing anything */
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case GUI_KEY_LEFT:
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SLIDER_Dec(hObj);
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break; /* Send to parent by not doing anything */
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default:
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return;
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}
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}
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}
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/*********************************************************************
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*
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* _SLIDER_Callback
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*/
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static void _SLIDER_Callback (WM_MESSAGE *pMsg) {
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SLIDER_Handle hObj;
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SLIDER_Obj* pObj;
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hObj = pMsg->hWin;
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pObj = SLIDER_H2P(hObj);
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/* Let widget handle the standard messages */
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if (WIDGET_HandleActive(hObj, pMsg) == 0) {
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return;
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}
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switch (pMsg->MsgId) {
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case WM_PAINT:
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GUI_DEBUG_LOG("SLIDER: _Callback(WM_PAINT)\n");
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_Paint(pObj, hObj);
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return;
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case WM_TOUCH:
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_OnTouch(hObj, pObj, pMsg);
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break;
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case WM_KEY:
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_OnKey(hObj, pMsg);
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break;
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}
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WM_DefaultProc(pMsg);
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}
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/*********************************************************************
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*
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* Exported routines: Create
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*
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**********************************************************************
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*/
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/* Note: the parameters to a create function may vary.
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Some widgets may have multiple create functions */
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/*********************************************************************
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*
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* SLIDER_CreateEx
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*/
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SLIDER_Handle SLIDER_CreateEx(int x0, int y0, int xsize, int ysize, WM_HWIN hParent,
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int WinFlags, int ExFlags, int Id)
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{
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SLIDER_Handle hObj;
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/* Create the window */
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WM_LOCK();
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#if SLIDER_SUPPORT_TRANSPARENCY
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WinFlags |= WM_CF_HASTRANS;
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#endif
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hObj = WM_CreateWindowAsChild(x0, y0, xsize, ysize, hParent, WinFlags, _SLIDER_Callback, sizeof(SLIDER_Obj) - sizeof(WM_Obj));
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if (hObj) {
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SLIDER_Obj* pObj = SLIDER_H2P(hObj);
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U16 InitState;
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/* Handle SpecialFlags */
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InitState = WIDGET_STATE_FOCUSSABLE;
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if (ExFlags & SLIDER_CF_VERTICAL) {
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InitState |= WIDGET_CF_VERTICAL;
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}
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/* init widget specific variables */
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WIDGET__Init(&pObj->Widget, Id, InitState);
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/* init member variables */
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SLIDER_INIT_ID(pObj);
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pObj->aBkColor[0] = _DefaultBkColor;
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pObj->aBkColor[1] = SLIDER_BKCOLOR1_DEFAULT;
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pObj->aColor[0] = SLIDER_COLOR0_DEFAULT;
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pObj->aColor[1] = SLIDER_COLOR1_DEFAULT;
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pObj->Width = 8;
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pObj->Max = 100;
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pObj->Min = 0;
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pObj->NumTicks = -1;
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} else {
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GUI_DEBUG_ERROROUT_IF(hObj==0, "SLIDER_Create failed")
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}
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WM_UNLOCK();
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return hObj;
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}
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/*********************************************************************
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*
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* Exported routines: Various methods
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*
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**********************************************************************
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*/
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/*********************************************************************
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*
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* SLIDER_Dec
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*/
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void SLIDER_Dec(SLIDER_Handle hObj) {
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SLIDER_Obj* pObj;
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if (hObj) {
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WM_LOCK();
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pObj = SLIDER_H2P(hObj);
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if (pObj->v > pObj->Min) {
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pObj->v--;
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WM_InvalidateWindow(hObj);
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WM_NotifyParent(hObj, WM_NOTIFICATION_VALUE_CHANGED);
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}
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WM_UNLOCK();
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}
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}
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/*********************************************************************
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*
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* SLIDER_Inc
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*/
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void SLIDER_Inc(SLIDER_Handle hObj) {
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SLIDER_Obj* pObj;
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if (hObj) {
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WM_LOCK();
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pObj = SLIDER_H2P(hObj);
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if (pObj->v < pObj->Max) {
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pObj->v++;
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WM_InvalidateWindow(hObj);
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WM_NotifyParent(hObj, WM_NOTIFICATION_VALUE_CHANGED);
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}
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WM_UNLOCK();
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}
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}
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/*********************************************************************
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*
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* SLIDER_SetWidth
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*/
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void SLIDER_SetWidth(SLIDER_Handle hObj, int Width) {
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SLIDER_Obj* pObj;
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if (hObj) {
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WM_LOCK();
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pObj = SLIDER_H2P(hObj);
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if (pObj->Width != Width) {
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pObj->Width = Width;
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WM_InvalidateWindow(hObj);
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}
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WM_UNLOCK();
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}
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}
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/*********************************************************************
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*
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* SLIDER_SetValue
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*/
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void SLIDER_SetValue(SLIDER_Handle hObj, int v) {
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SLIDER_Obj* pObj;
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if (hObj) {
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WM_LOCK();
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pObj = SLIDER_H2P(hObj);
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/* Put in min/max range */
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if (v < pObj->Min) {
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v = pObj->Min;
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}
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if (v > pObj->Max) {
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v = pObj->Max;
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}
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if (pObj->v != v) {
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pObj->v = v;
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WM_InvalidateWindow(hObj);
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WM_NotifyParent(hObj, WM_NOTIFICATION_VALUE_CHANGED);
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}
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WM_UNLOCK();
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}
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}
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/*********************************************************************
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*
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* SLIDER_SetRange
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*/
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void SLIDER_SetRange(SLIDER_Handle hObj, int Min, int Max) {
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if (hObj) {
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SLIDER_Obj* pObj;
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WM_LOCK();
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pObj = SLIDER_H2P(hObj);
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if (Max < Min) {
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Max = Min;
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}
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pObj->Min = Min;
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pObj->Max = Max;
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if (pObj->v < Min) {
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pObj->v = Min;
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}
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if (pObj->v > Max) {
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pObj->v = Max;
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}
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WM_InvalidateWindow(hObj);
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WM_UNLOCK();
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}
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}
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/*********************************************************************
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*
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* SLIDER_SetNumTicks
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*/
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void SLIDER_SetNumTicks(SLIDER_Handle hObj, int NumTicks) {
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if (hObj && (NumTicks >= 0)) {
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SLIDER_Obj* pObj;
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WM_LOCK();
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pObj = SLIDER_H2P(hObj);
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pObj->NumTicks = NumTicks;
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WM_InvalidateWindow(hObj);
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WM_UNLOCK();
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}
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}
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/*********************************************************************
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*
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* SLIDER_SetBkColor
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*/
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void SLIDER_SetBkColor(SLIDER_Handle hObj, GUI_COLOR Color) {
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if (hObj) {
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SLIDER_Obj * pObj;
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WM_LOCK();
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pObj = SLIDER_H2P(hObj);
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pObj->aBkColor[0] = Color;
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#if SLIDER_SUPPORT_TRANSPARENCY
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if (Color <= 0xFFFFFF) {
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WM_ClrHasTrans(hObj);
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} else {
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WM_SetHasTrans(hObj);
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}
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#endif
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WM_InvalidateWindow(hObj);
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WM_UNLOCK();
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}
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}
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/*********************************************************************
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*
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* SLIDER_SetDefaultBkColor
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*/
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void SLIDER_SetDefaultBkColor(GUI_COLOR Color) {
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_DefaultBkColor = Color;
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}
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/*********************************************************************
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*
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* Query state
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*
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**********************************************************************
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*/
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/*********************************************************************
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*
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* SLIDER_GetValue
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*/
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int SLIDER_GetValue(SLIDER_Handle hObj) {
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int r = 0;
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SLIDER_Obj* pObj;
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if (hObj) {
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WM_LOCK();
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pObj = SLIDER_H2P(hObj);
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r = pObj->v;
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WM_UNLOCK();
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}
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return r;
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}
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#else /* avoid empty object files */
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void SLIDER_C(void);
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void SLIDER_C(void){}
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#endif /* #if GUI_WINSUPPORT */
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