rdtk_label.c

 
#include <winpr/assert.h>
 
#include <rdtk/config.h>
 
#include "rdtk_font.h"
 
#include "rdtk_label.h"
 
int rdtk_label_draw(rdtkSurface* surface, uint16_t nXDst, uint16_t nYDst, uint16_t nWidth,
                    uint16_t nHeight, WINPR_ATTR_UNUSED rdtkLabel* label, const char* text,
                    WINPR_ATTR_UNUSED uint16_t hAlign, WINPR_ATTR_UNUSED uint16_t vAlign)
{
  uint16_t offsetX = 0;
  uint16_t offsetY = 0;
  uint16_t textWidth = 0;
  uint16_t textHeight = 0;
 
  WINPR_ASSERT(surface);
 
  rdtkEngine* engine = surface->engine;
  rdtkFont* font = engine->font;
 
  const int rc1 = rdtk_font_text_draw_size(font, &textWidth, &textHeight, text);
  if (rc1 < 0)
    return rc1;
 
  if ((textWidth > 0) && (textHeight > 0))
  {
    offsetX = 0;
    offsetY = 0;
 
    if (textWidth < nWidth)
      offsetX = ((nWidth - textWidth) / 2);
 
    if (textHeight < nHeight)
      offsetY = ((nHeight - textHeight) / 2);
 
    const int rc2 = rdtk_font_draw_text(surface, nXDst + offsetX, nYDst + offsetY, font, text);
    if (rc2 < 0)
      return rc2;
  }
 
  return 1;
}
 
rdtkLabel* rdtk_label_new(rdtkEngine* engine)
{
  WINPR_ASSERT(engine);
  rdtkLabel* label = (rdtkLabel*)calloc(1, sizeof(rdtkLabel));
 
  if (!label)
    return NULL;
 
  label->engine = engine;
 
  return label;
}
 
void rdtk_label_free(rdtkLabel* label)
{
  free(label);
}
 
int rdtk_label_engine_init(rdtkEngine* engine)
{
  WINPR_ASSERT(engine);
  if (!engine->label)
  {
    engine->label = rdtk_label_new(engine);
  }
 
  return 1;
}
 
int rdtk_label_engine_uninit(rdtkEngine* engine)
{
  WINPR_ASSERT(engine);
  if (engine->label)
  {
    rdtk_label_free(engine->label);
    engine->label = NULL;
  }
 
  return 1;
}