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(svn r8347) -Codechange: [Graphs] Make some more variables local to the loops they're used in, and remove some assumptions about the size of an array.

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maedhros 2007-01-22 15:46:57 +00:00
parent 29a89e0a2f
commit 053dd86a3c
1 changed files with 11 additions and 16 deletions
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27
src/graph_gui.cpp
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@ -67,12 +67,10 @@ static void DrawGraph(const GraphDrawer *gw)
{
uint x,y,old_x,old_y;
int right;
const int64 *row_ptr, *col_ptr;
int64 mx;
int adj_height;
uint64 y_scaling;
int64 value;
int64 cur_val;
uint sel;
/* the colors and cost array of GraphDrawer must accomodate
@ -123,23 +121,21 @@ static void DrawGraph(const GraphDrawer *gw)
assert(gw->num_on_x_axis > 0);
assert(gw->num_dataset > 0);
row_ptr = gw->cost[0];
mx = 0;
/* bit selection for the showing of various players, base max element
* on to-be shown player-information. This way the graph can scale */
sel = gw->sel;
for (int i = 0; i < gw->num_dataset; i++) {
if (!(sel&1)) {
col_ptr = row_ptr;
for (int i = 0; i < gw->num_on_x_axis; i++) {
if (*col_ptr != INVALID_VALUE) {
mx = max(mx, *col_ptr);
for (int j = 0; j < gw->num_on_x_axis; j++) {
int64 datapoint = gw->cost[i][j];
if (datapoint != INVALID_VALUE) {
mx = max(mx, datapoint);
}
col_ptr++;
}
}
sel >>= 1;
row_ptr += 24;
}
/* setup scaling */
@ -200,21 +196,21 @@ static void DrawGraph(const GraphDrawer *gw)
}
/* draw lines and dots */
row_ptr = gw->cost[0];
sel = gw->sel; // show only selected lines. GraphDrawer qw->sel set in Graph-Legend (_legend_excludebits)
for (int i = 0; i < gw->num_dataset; i++) {
if (!(sel & 1)) {
/* Centre the dot between the grid lines. */
x = gw->left + GRAPH_X_POSITION_BEGINNING + (GRAPH_X_POSITION_SEPARATION / 2);
col_ptr = row_ptr;
byte color = gw->colors[i];
old_y = old_x = INVALID_VALUE;
for (int i = 0; i < gw->num_on_x_axis; i++) {
cur_val = *col_ptr++;
if (cur_val != INVALID_VALUE) {
y = adj_height - BIGMULSS64(cur_val, y_scaling >> 1, 31) + gw->top;
for (int j = 0; j < gw->num_on_x_axis; j++) {
int64 datapoint = gw->cost[i][j];
if (datapoint != INVALID_VALUE) {
y = adj_height - BIGMULSS64(datapoint, y_scaling >> 1, 31) + gw->top;
GfxFillRect(x-1, y-1, x+1, y+1, color);
if (old_x != INVALID_VALUE)
@ -229,7 +225,6 @@ static void DrawGraph(const GraphDrawer *gw)
}
}
sel >>= 1;
row_ptr += 24;
}
}