109 lines
3.0 KiB
HolyC
109 lines
3.0 KiB
HolyC
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/*Done with <CTRL-SHIFT-L> template code
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that was modified.
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This is an advanced demo that shows
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that you can place ctrls on the
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wall paper.
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See $LK,"::/Demo/Graphics/Slider.HC"$
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and $LK,"::/Demo/Graphics/WallPaperFish.HC"$
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before messing with this program.
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It must be "Adam Included".
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*/
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#define SLIDER_RANGE 30
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#define SLIDER_SPACING 20
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#define SLIDER_BORDER 2
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class CSliderState
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{
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I64 left_pos;
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I64 right_pos;
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};
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U0 DrawCtrlSlider(CDC *dc,CCtrl *c)
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{
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CSliderState *s=c->state;
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dc->color=LTRED;
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GrRect(dc, c->left,c->top,SLIDER_SPACING*3+2,SLIDER_SPACING*2+SLIDER_RANGE);
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dc->color=BLUE;
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GrRect(dc, c->left+SLIDER_BORDER,c->top+SLIDER_BORDER,
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SLIDER_SPACING*3+2-2*SLIDER_BORDER,
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SLIDER_SPACING*2+SLIDER_RANGE-2*SLIDER_BORDER);
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dc->color=BLACK;
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GrLine(dc,c->left+1*SLIDER_SPACING+0,c->top+SLIDER_SPACING,
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c->left+1*SLIDER_SPACING+0,c->top+SLIDER_SPACING+SLIDER_RANGE-1);
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GrLine(dc,c->left+2*SLIDER_SPACING+1,c->top+SLIDER_SPACING,
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c->left+2*SLIDER_SPACING+1,c->top+SLIDER_SPACING+SLIDER_RANGE-1);
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dc->color=LTRED;
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GrPrint(dc,c->left+1*SLIDER_SPACING+0-FONT_WIDTH/2,
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c->top+SLIDER_SPACING+SLIDER_RANGE+3,
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"%d",s->left_pos*10/SLIDER_RANGE);
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GrPrint(dc,c->left+2*SLIDER_SPACING+1-FONT_WIDTH/2,
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c->top+SLIDER_SPACING+SLIDER_RANGE+3,
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"%d",s->right_pos*10/SLIDER_RANGE);
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GrRect(dc,c->left+1*SLIDER_SPACING+0-3,
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c->top+SLIDER_SPACING+SLIDER_RANGE-1-s->left_pos-2,7,5);
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GrRect(dc,c->left+2*SLIDER_SPACING+1-3,
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c->top+SLIDER_SPACING+SLIDER_RANGE-1-s->right_pos-2,7,5);
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dc->color=YELLOW;
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GrRect(dc,c->left+1*SLIDER_SPACING+0-2,
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c->top+SLIDER_SPACING+SLIDER_RANGE-1-s->left_pos-1,5,3);
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GrRect(dc,c->left+2*SLIDER_SPACING+1-2,
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c->top+SLIDER_SPACING+SLIDER_RANGE-1-s->right_pos-1,5,3);
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}
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U0 UpdateDerivedCtrlSlider(CCtrl *c)
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{
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CSliderState *s=c->state;
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c->left=c->win_task->pix_width/2-(SLIDER_SPACING*3+2)/2;
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c->right=c->left+3*SLIDER_SPACING+2;
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c->top=c->win_task->pix_height/2-(SLIDER_SPACING*2+SLIDER_RANGE)/2;
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c->bottom=c->top+SLIDER_SPACING*2+SLIDER_RANGE;
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s->left_pos=ClampI64(s->left_pos,0,SLIDER_RANGE-1);
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s->right_pos=ClampI64(s->right_pos,0,SLIDER_RANGE-1);
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}
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U0 LeftClickSlider(CCtrl *c,I64 x,I64 y,Bool)
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{
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CSliderState *s=c->state;
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if (x<c->left+1*SLIDER_SPACING+0+SLIDER_SPACING/2)
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s->left_pos=SLIDER_RANGE-1-(y-(c->top+SLIDER_SPACING));
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else
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s->right_pos=SLIDER_RANGE-1-(y-(c->top+SLIDER_SPACING));
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if (c->update_derived_vals)
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(*c->update_derived_vals)(c);
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}
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CCtrl *SliderNew()
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{
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CCtrl *c;
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if (Fs!=adam_task) {
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"Must be Adam Included with SHIFT-F5.\n"
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"(Would crash when code mem was freed.)\n";
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return NULL;
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}
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c=ACAlloc(sizeof(CCtrl));
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c->win_task=sys_winmgr_task;
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c->flags=CTRLF_SHOW|CTRLF_CAPTURE_LEFT_MS;
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c->type=CTRLT_GENERIC;
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c->state=ACAlloc(sizeof(CSliderState));
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c->draw_it=&DrawCtrlSlider;
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c->left_click=&LeftClickSlider;
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c->update_derived_vals=&UpdateDerivedCtrlSlider;
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QueIns(c,sys_winmgr_task->last_ctrl);
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TaskDerivedValsUpdate;
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return c;
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}
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U0 SliderDel(CCtrl *c)
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{
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QueRem(c);
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Free(c->state);
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Free(c);
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}
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SliderNew;
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